JVC KD-55 cassette tape deck

Stereo Cassette Deck

This model is the best buy in JVC's line of high-performing hi-fi cassette decks. Its basic parameters are impressive: Frequency Response from 30 to 16,000 Hz with Chrome, wow/flutter of 0,15% (DIN 45 500) and Signal-to-Noise Ratio of better than 56 dB (ANRS off). If you're shopping for a medium-priced, high-performance deck, the KD-55 is a likely candidate for your stereo system.

Accurate Tape Transport

Like more expensive JVC cassette decks, the KD-55 employs a precision frequency generator (FG) servomotor to drive its capstan and reels in the advanced JVC drive configuration. The FG motor is renowned for its rotational accuracy independent of temperature changes, and simplified and advanced system has dramatically improved the stability and reliability of JVC cassette decks. Other KD-55 features to reduce wow and flutter include a large 80 mm -in-diameter dynamically balanced fly-wheel and a capstan shaft precision ground to a roundness of 0,1 µ.

Flattest Response from Any Tape

To solve the problem caused by improper bias and equalization, JVC has equipped the KD-55 with two 3-positioned tape switches - one for bias setting and the other for equalization. By properly adjusting these switches, you can get a natural and flat response from any type of tape, whether you prefer ferric, chrome or ferrochrome types. Another JVC feature included in the medium-priced KD-55 is a Recording Equalizer Switch which allows you to fine-adjust the high frequency response of your deck to compensate for variable tape sensitivities.

 

Easy One-Touch Recording Level Setting

You can set recording levels simply by pushing the Record button. On decks without this facility, you would have to push the Pause button and then the Record and Play buttons together

Features for Wider Dynamic Range

Super ANRS (Automatic Noise Reduction System) is a JVC exclusive that makes tape hiss virtually inaudible. And in addition to eliminating high-frequency noises during "silent" periods, the Super ANRS expands your deck's high-frequency dynamic range; high hats and tambourines, for example, won't sound cramped or distorted. Also, because the Super ANRS circuit is contained in an IC (Integrated Circuit), its long-term reliability is assured. Indeed, with the JVC combination of Super ANRS, a 5-LED Peak Indicator and large VU meters, you can produce undistorted, professional quality recordings instantly.

Unparalleled Ease of Operation

Three features dramatically enhance the ease of operation of the KD-55. one is the JVC-exclusive Gear/Oil-Damped Cassette Lid; it assures smooth, noise-less lid movement. The second is the unique Automatic Input Selector. With it selection priority is given first to Mic, then DIN and then Line inputs; you enjoy recording of a high Signal-to-Noise Ratio. Finally, the Output Volume Control lets you adjust the deck's output level with that of a tuner, etc.

 

Specifications

Type:  stereo cassette deck

Track System:  4-track, 2-channel

Frequency Response: 

SA/CrO₂ : 30 - 16,000 Hz (Typical)

Normal :  30 - 15,000 Hz (Typical)

Signal-to-Noise Ratio :  56 dB (from Peak Level, Weighted) without  Dolby

The Signal-to-Noise Ratio is improved by 5 dB at 1 kHz and by 10 dB above 5 kHz with Dolby on.

Wow and Flutter:  0,05% (WRMS); 0,14% (DIN 45 500)

Crosstalk:  65 dB at 1 kHz

Channel Separation:  35 dB at 1 kHz

Total Harmonic Distortion :  1,3% ( 1khz, 0 VU, Normal tape)

Heads: 

Recording/Playback :  SA (Sen-Alloy) head

Erase: Two-gap , Ferrite head

Bias:  AC bias (95 kHz)

Erasure:  AC erasure (95 kHz)

Motors:  Frequency-Controlled DC Servo motor

Tape Speed:  4,8 cm/sec

Fast Forward/Rewind Time:  80 sec with C-60 cassette

Bias and Erase System:  AC-95 kHz

Input Sensitivity/Impedance:

MIC :  0,2 mV/600 Ω  - 10 k Ω

Line :  80 mV/100 k Ω

DIN :  0,1 mV/ 10 k ohm

Output Level/Impedance

Line :  0-500 mV/3 k Ω

Headphone :  0-500 mV/3 k Ω 

DIN:  0,5 mW/8  Ω  - 1 k Ω

Power Requirements:  AC 240/220/120 V 50/60 Hz

Power Consumption:  11 W

Dimensions (W x H x D):  420 x 149 x 264 mm (16-9/16" x 5-7/8" x 10-7/16")

Weight:  5,6 kg (12,3 lbs)

 

Teac W-800R cassette deck

Double Auto Reverse Cassette Deck

The W-800R is composed of two fully functional auto-reverse decks in a single chassis. This format offers a number of advantages, the first of which is tape dubbing - set one transport to play and the other to record and copy tapes at normal or high speed. You can also use both transports for recording, either at the same time or one followed by the other for taping long musical works. And for extended playback time, both decks feature auto-reverse as well as repeat of one side, two sides or both sides of both cassettes. Since each transport has its own IC logic control system, tape transport functions and simultaneous starting are smooth and precise.

 

Dolby HX Pro Headroom Extension

Working in tandem with Dolby B or C noise reduction, HX Pro provides better performance than either system could on its own. It lowers the bias level at high-frequency peaks, preventing "self-biasing" which would otherwise occur, for a widend recordable dynamic range. Dolby HX Pro operates only during recording, so you can play tapes recorded with it on any standard deck, even one not equipped with HX Pro.

 

Important W-800R Features:

Bi-directional recording and playback on both decks I and II

Bi-directional double deck continuous playback

Double deck parallel recording capability

Synchronous reverse and dubbing capability

Auto-reverse and repeat playback

CPS function

Intro check

2-color multi-function ZFL display

L/R independent peak program level meters with peak hold

Electronic tape index counters for deck I and II

Blank scan

One-touch recording

One-key normal/high speed dubbing

CD/deck synchronous dubbing (Deck II)

Rec mute with auto spacer

Full auto-stop

Auto tape selector (Deck I and II)

Large insulator

L/R microphone inputs

Headphone output

TEAC UR system compatible

Infrared remote sensor

RC-506 Remote Control Unit optionally available

 

Specifications

Type:  4 track, 2 channels

Number of Cassettes: 2

Motors:  2 x DC Servo (Deck 1 & 2)

Heads:  2 x Erase (Deck 1 & 2); 2 x Rec/Playback (Deck 1 & 2)

Fast Winding Time:  110 sec. C-60 tape

Wow and Flutter:  0,06% WRMS

Frequency Response:

Metal Tape:  25 Hz - 19 kHz

CrO₂ Tape :  25 Hz -18 kHz

Normal Tape :  25 - 17 kHz

Signal-to-Noise Ratio

3% T.H.D. Level Weighted :  59 dB

Dolby B NR on. Over 5 kHz :  69 dB

Dolby C NR on, Over 1 kHz :  79 dB

Inputs Sensitivity/Impedance:

Line :  97 mV / 50 k Ω

Mic. :  0,38 mV/200 Ω 

Outputs Level/Impedance:

Line :  0,52 V/50 k Ω

Headphones :  1 mW/8 Ω 

Dimensions (W x H x D):  435 x 144 x 284 mm

Weight:  4,8 kg

 

Nakamichi BX-300 cassette deck

The BX-300 incorporates a wealth of original Nakamichi Technology including the Discrete Three-Head Recording System that guarantees 20 - 20,000 Hz ±3 dB response, perfect magnetic azimuth alignment, and maximum MOL; the Asymmetrical Dual-Capstan Diffused-Resonance Transport that eliminates the need for pressure pads and intracapstan guides and so has remarkably low scrape flutter and modulation noise for superior sound clarity; and Nakamicho-quality electronics for reduced noise and distortion. We even created a new high-inertia DD capstan motor and servo for the BX-300 to provide the benefits of direct drive - without its problems. If you'd rather invest insuperior performance than spend a bundle on features you don't really need, you'll find the BX-300 made for you.

 

The Discrete Three-head System - Perfect Magnetic Azimuth Alignment Ensures 20 - 20,000 Hz

A "3-head" deck should be better than a 2-head deck because separate record and play heads can be individually optimized. A wide recording gap ensures full tape utilization for optimum MOL while a narrow playback gap resolves high frequency recordings. A 3-head deck also allows of-tape monitoring so you can check quality as you're recording. But beware - all 3-head decks are not the same.

Most 3-head decks use "sandwich" heads  - record and play sections are in the same housing. Once the head is made, there's no way to align the sections. Even if the gaps are mechanically parallel, the magnetic gaps may not be , and, without perfect magnetic alignment, response is impaired. And, with the gaps so close together, recording flux may leak into the playback core. In severe cases, this "crossfeed" upsets Dolby tracking and can be heard as a preecho when monitoring compromising the monitor's usefulness.

To Nakamichi, "3-head" means three discrete heads - physically independent heads that are perfectly optimized and magnetically aligned after insstallation to ensure flat response, maximum headroom and minimum noise at all frequencies.

Our recording and playback heads are individually shielded to eliminate crossfeed and noise pickup. They are individually adjustable in height, azimuth, and zenith to ensure perfect tracking, magnetic alignment and tape contact. Our mounting system is unusually sophisticated and allows non-interacting adjustment of each parameter for each head after installation. The results speak for themselves.

Playback head - P2H-3L; with a 0,8 micron gap and low-loss laminated-Crystalloy core, the P2H-3L provides smooth response to 20 kHz. A special hyperbolic geometry virtually eliminates "contour effect" so response is uniform to the lowest frequencies.

Recording head - R-3L; this 3,5 micron gap head produces an extremely sharp critical zone for maximum high-frequency response and MOL. Its laminated-Crystalloy core easily handles the bias needed to record high-coercivity metal tape and ensures exceptional dynamic range.

Erase head - E-4F; with two erasing gaps, a low-loss ferrite core and high-saturation sendust poletip, the E-4F ensures complete erasure for perfect sound clarity

 

Asymmetrical Dual-Capstan Diffused-Resonance Transport Eliminates Scrape Flutter and Modulation Noise.

Most dual-capstan decks use identical capstans for supply and takeup. They rotate at the same rate and concentrate wow at specific frequencies making it much more audible. Tape tension within the "closed loop" isn't constant -  the whole point of a closed-loop system - so a pressure pad is used to maintain tape-to-head contact. With a pressure pad, tape-to-head contact becomes erratic and, unless the pad is perfectly oriented, the tape skews causing mistracking and azimuth error. Thus an intracapstan guide needed.

After years of research, Nakamichi created the "asymetrical Dual-Capstan Diffused-Resonance Transport" -  the only mechanism that eliminates coherent wow and exercises such precise control that neither pressure pad not intracapstan guide are required.

The pad and guide have audible effects. As the tape passes them, it vibrates causing "scrape flutter" and "modulation noise" which destroy sound clarity. Modulation noise varies with recording level so it's not suppressed by noise-reduction systems. In fact, the perceived quality of digital recording is largely due to the absence of modulation noise. Reoving the pad and guide virtually eliminates scrape flutter and modulation noise and allows music to emerge with digital-like tansparency. To eliminate coherent wow, the transport is "asymmetric", capstan are of different diameter and rotate at different rates so they don't resonate and concentrate wow at specific frequencies.

 

High-Inertia Direct-Drive Capstan Motor and High-Precision Servo Ensure Ultra-Low Wow and Flutter

"Direct Drive" should be superior to belt drive because a belt can introduce speed variations if it doesn't run true. But, direct drive mercilessly reveals motor cogging becasue there's no compliant belt to filter it. Cogging causes high frequency flutter that is heard but ignored in specifications. All DD decks are not the same.

The BX-300 takeup capstan is directly driven by an outstanding new motor that is virtually cog-free thanks to its unusually high inertia. The motor has an exceptionally heavy rotor with the mass concentrated at the circumference to create a flywheel that ensures smooth rotation. It is brushless, slotless and coreless so torque fluctuations are inherently low.

To further reduce flutter, we extended the servo bandwidth to correct torque variations up to 1 kHz - the key element being a 160-segment frequency generator that senses speed every 2-1/4 degrees of rotation. A careful choice of components ensures excellent stability over time and temperaature.

The BX-300 features Nakamichi's "Silent Mechanism" in which a microprocessor=controlled Motor-Driven Cam replaces conventional solenoids. There's no mechanical shock to upset head alignment and each operation is performed swiftly and precisely.

The motor actuates three switch cams to inform the microprocessor of the current status. This "dialogue" between mechanism and microprocessor permits sophisticated precise control.

 

Nakamichi Electronics On A Par with The Finest Preamps

To realize the full potential of nakamichi heads and use the Dolby NR system to best advantage, we developed new electronics for the BX-300. with distortion under 0,005%, they're equivalent to the finest preamps.

Recording, line and headphone amplifiers are direct-coupled and bipolar-powered for maximum dynamic range. The Double-NF recording equalizer is directly coupled to the recording head for low distortion and precise compensation.

Playback amplifiers are sensitive to power supply fluctuations; our special circuitry overcomes this problems and yields excellent Signal-to-Noise, High-gain low-noise input FETs and Double-NF topology reduce distortion and noise and ensure perfect head matching

A central power supply feeds each circuit separately to eliminate noise and crosstalk.

Dolby chips are handpicked to ensure perfect matching and realize Dolby-C's full potential.

 

An Array of Truly Features for Superb Operating Convenience

Dual-Speed Master Fader: once you've set maximum recording level and channel balance with the BX-300's left and right Rec level sliders, you can create professional fades at the touch of a button. Press lightly on UP or DOWN for a 4-second fade; press and hold for a 2-second fade

Auto Repeat: turn on Auto Repeat and the tape automatically rewinds and replays when it reaches the end. Or, use Auto Repeat with Memory Stop to repeat playback from counter zero.

Bias Fine Tuning: even tapes of the same general type differ somewhat in bias requirements. The BX-300's Bias Fine Tune control allows you to adjust bias to create perfect recordings.

Pitch Control: it's no problem to "true" the BX-300 to your piano or other musical instrument. Its Pitch Control allows you to alter playback speed by ±6% - one semitone - to correct an off-pitch recording.

Dolby B/C Noise Reduction: B-type NR reduces noise in the upper frequency region by approximately 10  dB . C-type NR gives you 20 dB noise reduction from 2 kHz to 8 kHz where tape hiss is most audible.

Wide-Raange Peak-Responding Meters: LEDs accurately indicate recording level over a wide 50 dB range (-40 dB to =10 dB)

4-Digit LED Tape Counter: referenced to "0000", this precision counter reads bidirectionally from "-999" to "9999"

 

Specifications

Track Configuration:  4-tracks, 2-channel stereo

Heads: 1 x erase; 1 x record and 1 x playback heads

Motors

Transport

FG servo, brushless, slotless, coraless

1 x DD motor for capstan drive

1 x DC motor for reel drive

Mechanism

1 x DC motor for cam operation

Tape Speed

Recording :  1-7/8 ips (4,8 cm/sec) ±0,5%

Playback :  1-7/8 ips (4,8 cm/sec) ±6%, adjustable

Wow and Flutter

WTD Peak ;  less than ±0,048%

WTD RMS :  less than 0,027%

Frequency Response:  20 Hz - 20,000 Hz ±3 dB (-20 dB recording level, )

Signal-to-Noise Ratio

Dolby C NR :  better than 70 dB

Dolby B NR :  better than 64 dB

Total Harmonic Distortion (400 Hz, 0 dB):

ZX Tape :  less than 0,9%

SX, EX II tape ;  less than 1,0%

Erasure: better than 60 dB (100hz, 0 dB)

Separation:   better than 36 dB (1 kHz, 0 dB)

Crosstalk:   60 dB (1 kHz, 0 dB)

Biass Frequency:  105 kHz

Input Line :  50 mV / 30 k Ω

Output

Line :  1,0 V (400 Hz, 0 dB, output control max.)/ 2,2 k Ω

Headphone :  5 mW (400 Hz, 0 dB, otput control max.)/ 8 Ω

Power Requirements:  100, 120, 120/220-240, 220 or 240 V AC 50/60 Hz

Power Consumption:  approx 27 W

Dimensions (W x H x D):  430 x 100 x 250 mm (16-15/16" x 3-15/16" x 9-7/8")

Weight:  5,6 kg (12 lb 6 oz)

Pioneer T-3500 cassette deck

The cassette stereo tape deck with a real performance difference - it's especially designed for use with standard, low-noise or chromium dioxide tapes

 

Up until now, the performance of stereo cassette tapes has often been superior to the performance of stereo  cassette tape decks. But with Pioneer's T-3500 deck music listeners are assured of a unit that matches even the very best tapes made today. The T-3500 is the first professional cassette tape deck especially designed for use with any of the three major cassette tapes now on the market; standard, low-noise, high-output or the chromium dioxide tapes. This attractive unit incorporates three kinds of tape selector buttons on its front panel that lets you choose the most ideal performance for each of the different recording tapes. And cassette sound has just never sounded as good. The T-3500 is built for quality music reproduction in other ways, too. It uses a ferrite solid head for long life and frequency response with wide dynamic range sound reproduction. Moreover, it is equipped with an automatic-stop, automatic pop-up mechanism and precision drive mechanism for smooth tape travel. With the T-3500 cassette sound comes of age. And it's available now from Pioneer.

 

Choice of Tape Selector Switches

The T-3500 features three selector buttons that let you apply the ideal condition for each of the three types of commonly used cassette recording tapes. You can choose between standard, low-noise, high-output and high performance chromium dioxide tapes. And be guaranteed of total performance from each. These three tape selector buttons are the very latest development in cassette recorder innovation. They're designed to help you get the most from your recorded music - and make mediocre cassette performance a thing of the past.

 

Ferrite Solid Head of unlimited service-life and excellent performance

Even with all the modern new tape deck technology, still the most important part of your purchase is the tape head. Pioneer's T-3500 employ an extremely hard crystal ferrite type head to give you practically unlimited service-life and wide-frequency response . Such is the smooth touch of the head to the tape that you can virtually hear the difference with the first tape you play or record.

 

Unique Automatic cassette Pop-Up mechanism

The T-3500 features an automatic tape end shutt-off switch that has a choice of two functions. With the Automatic tape end shutt-off switch set to Stop, the drive mechanism will be released automatically at the end of the tape. When it's in a Pop-Up position, the cassette is automatically ejected at the end of its playing time. A very convenient feature to save on machine and tape wear.

 

Other Features:

Non-contact type tape end detection device

Memorex Chromium cassette tape included

Easy-to-read level, meters

Extra large flywheel

Two-step eject button

Superbly designed electronic circuits

A compact, elegant design

 

Specifications

Type:  4-track, 2-channel Stereo / Mono deck

Motor:  4-pole hysteresis synchronous motor

Tape Speed:  1-7/8 ips (4,75 cm/s)

Tape Types:  Low-noise; High-output, Chromium dioxide cassettes (C-30, C-60, C-90, C-120)

Recording System:  AC bias (frequency 85 kHz)

Erasing:  AC system

Fast Winding Time:  approx. 70 sec. C-60 cassette

Frequency Response:

Standard Type :  20 -14,000 Hz (40-12,000 Hz ±3 dB)

L.H. Type :  20 -16,000 Hz (40-13,000 Hz ±3 dB)

Chrome Type :  20 -18,000 Hz (40-15,000 Hz ±3 dB)

Signal-to-Noise Ratio:  better than 45 dB

Wow and Flutter:  less than 0,14% (WRMS)

Inputs Sensitivity/Impedance:

Line :  50 mV/100 k Ω

Mic :  0,5 mV/50 k Ω

Output Level/Impedance:

Line :  0,775 V/50 k Ω

Headphone :  0,15 mW/8 Ω

Rec/playback jack:  DIN type

Power Requirements: 110, 120, 130, 220, 240 V (switchable) 50/60 Hz

Power Consumption:  24 watts semiconductors:   18 Transistors;  11 Diodes

Dimensions (W x H x D):  362 x 17 x 227 mm (14-1/4" x 4-5/6" x 8-15/16")

Weight:5,6 kg (12 lb 6 oz)

JVC KD-V200 cassette deck

  

 

Solid and Logic Control Cassette Deck with Several Surprising Extras:

Dolby B/C noise reduction systems for low-noise recording and playback

Logic control tape mechanism for soft-touch operation

LED tape running indicator shows tape mode at a glance

JVC Metaperm head for excellent results with all tape types including Metal

6-LED multi-peak indicators, one set per channel

Music Scan System to ocate songs in a flash

LED Dolby C NR and Recording indicators

Slider input level controls

Automatic input selector

Mic and headphone jacks.

 

The KD-V200 is a solid performer that offers several surprising features not often found in decks in this price range. For instance, Dolby B/C noise reduction, the highly effective hiss eliminator, and a logic control mechanism to make operation easy. And Music Scan to quickly locate the beginning of the next or receding selection instantly.

 

Specification

Type:  Stereo cassette deck

Track System:  4-track, 2 channel

Tape Speed:  4,8 cm/s (1-7/8 ips)

Frequency Response (0 dB recording)

Metal Tape :  40 - 11,000 Hz (±3 dB)

CrO₂ Tape :  40 - 8,000 Hz (±3 dB)

Normal Tape :  40 - 8,000 Hz (±3 dB)

Frequency Response (-20 dB recording)

Metal Tape :  40 - 15,000 Hz (±3 dB)

CrO₂ Tape :  40 - 15,000 Hz (±3 dB)

Normal Tape :  40 - 14,000 Hz (±3 dB)

Frequency Response DIN 45 500 (-20 dB recording)

Metal Tape :  30 - 16,000 Hz

CrO₂ Tape :  30 - 16,000 Hz

Normal Tape :  30 - 15,000 Hz

Signal-to-Noise Ratio:  58 dB (S=1 kHz, K3=3%, N=A-weight, Metal tape)

The S/N is improved by about 15 dB at 500 Hz and by max. 20 dB at 1 kHz with (10 kHz with Dolby C NR on and improved by 5 dB at 1 kHz and ny 10 dB at above 5 kHz with ANRS/Dolby B NR on.

Improvement of MOL:  4 dB at 10 kHz with Dolby C NR on

Wow and Flutter:  0,08% (WRMS); 0,20% (DIN 45 500)

Crosstalk:  60 dB (1 kHz)

Harmonic Distortion:  K3; 0,5% T.H.D.: 1,0%(Metal tape, 1 kHz 0 dB)

Heads: 

Rec/Pb :  Metaperm head

Erasure :  2-GAP ferrite head

Motor:  Electronic governed DC motor

Fast Forward /Rewind Time:  100 sec. C-60 cassette

Input Sensitivity/Impedance

74MIC :  0,2 mV (-8 dBV)/ 600 Ω  - 10 k Ω

Line Jack :  80 mV/100 k Ω

Output Level/Impedance

Line Output :  300 mV/5 k Ω

Phones :  0,3 mW/8 Ω  -1 k Ω 

Power Requirements:  AC 120 V, 220 - 240 V; 50/60 Hz

Power Consumption:  10 W (power On); 0,8W (power Off)

Dimensions (W x H x D) :  435 x 115 x 235 mm (17-1/8" x 4-9/16" x 9-1/4")

Weight:  3,7 kg (8,1 lbs)

JVC KD-V100 cassette deck

 

Fine Performance Makes This One of Our Most Popular Models

This model will undoubtedly be one of most popular models ever thanks to its design emphasis on performance. It has a logic control mechanism to make operation easier and protect tapes, a JVC Metaperm head for top recordings from all tape types including metal, and ANRS/Dolby noise reduction for hidd-free recordings. Whether your system is an economy or top-of-the-line system, the KD-V100 is an excellent adition.

Fel tape mechanism for soft-touch operation

JVC Metaperm head for excellent results with all tape types including metal

ANRS/Dolby noise reduction for clean, clear recordings

6-LED multi-peak indicators, one set per channel

Automatic input selector

Mike jacks

3-digit tape counter

Gear/oil-damped cassette lid

 

Specification

Type:  Stereo cassette deck

Track System:  4-track, 2 channel

Tape Speed:  4,8 cm/s (1-7/8 ips)

Frequency Response (0 dB recording)

Metal Tape :  40 - 11,000 Hz (±3 dB)

CrO₂ Tape :  40 - 8,000 Hz (±3 dB)

Normal Tape :  40 - 8,000 Hz (±3 dB)

Frequency Response (-20 dB recording)

Metal Tape :  40 - 15,000 Hz (±3 dB)

CrO₂ Tape :  40 - 15,000 Hz (±3 dB)

Normal Tape :  40 - 14,000 Hz (±3 dB)

Signal-to-Noise Ratio:  58 dB (S=1 kHz, K3=3%, N=A-weight, Metal tape) Ths S/N is improved by 5 dB at 1 kHz and by 10 dB above 5 kHz with ANRS/Dolby B NR on.

Wow and Flutter:  0,07% (WRMS); 0,20% (DIN 45 500)

Crosstalk:  60 dB (1 kHz)

Harmonic Distortion:  K3; 0,5% T.H.D.: 1,0%(Metal tape, 1 kHz 0 dB)

Heads: 

Metaperm head for recording/playback

2-GAP ferrite head for erasure

Motor:  Electronic governed DC motor

Fast Forward /Rewind Time:  100 sec. C-60 cassette

Input Sensitivity/Impedance

MIC :  0,4 mV (-68 dBV)/ 600 Ω  - 10 k Ω

Line Jack :  80 mV/100 k Ω

Output Level/Impedance

Line Output :  300 mV/5 k Ω

Power Requirements:  AC 120 V, 220 - 240 V; 50/60 Hz

Power Consumption:  10 W (power On); 0,8W (power Off)

Dimensions (W x H x D) :  435 x 115 x 237 mm

Weight:  3,5 kg (7,7 lbs)

Pioneer CT-4141 cassette deck

 

The potential of cassette stereo sound reaches its zenith with this outstanding new deck from Pioneer, a thoroughly professional unit with multiple advanced features. The first Pioneer deck of its kind with built-in Dolby noise reduction unit, the CT-4141 offers one of the widest frequency response ranges of any deck in this time on the market, 30 to 16,000 Hz when chromiumdioxide tape is used. The Dolby system is employed to eliminate irritating tape hiss and noise and does this most effectively without sacrificing important tonal quality. All in all, cassette tape has never sounded better than with this complete deck, which is also equipped with a chromium tape selector that allows you to use this new kind of tape manufactured especially for near-flawless sound reproduction, wide frequency response and extra-wide dynamic range. When matched with the Dolby unit, chrome tape will provide a cassette sound that is the equal of expensive open-reel tape decks. Other standard and standout features of the CT-4141 include a ferrite soild tape head, designed for long service life, as well as an electronically controlled DC motor that assures a very high Signal-to-Noise Ratio. There is a tape running pilot light that provides assurance that all is functioning well, and a "skip" button that enables you to use the fast-winding function while monitoring sound reproduction, when the mode key has been set to "play". Noo other deck on the market, at the price of the CT-4141, offers so many exclusive and important features for superb sound reproduction.

Ferrite Solid Head for Long-life

The high performance chromium tapes possess a 50% higher density of magnetic particles than conventional cassette tapes, and can therefore impair the conventional tape head over an extended period of time durability of the head is thus a key concern for all contemporary decks and the  CT-4141 has one of the most durable of all. The ferrite soild head employed in the CT-4141 will give lifelong service and durability when used with any kind of tape. Additionally, you can expect a variety of other important benefits from this head, including little loss of high frequency bias, magnetic power and improved frequency characteristics especially in the high frequency ranges. The surface of this head is mirror-finished, to protect your tapes and to afford an extremely smooth head touch to the tape. This fine surfacing also contributes to dust-free usage af all tapes, and helps to suppress background noise that often occurs from magnetization.

 

Specifications

Modes:  Comact cassette, 2-channel stereo, stereo/mono

Tapes:  C-30, C-60, C-90, C-120 (Standard, Low-noise high-output, Chromium dioxide)

Recording System:  AC bias (bias frequency; 85 kHz)

Erasing System:  AC system

Recording/Playback Head:  Ferrite Solid Head

Motor:  electronically controlled type DC motor

Wow and Flutter:  less than 0,13% (WRMS)

Signal-to-Noise Ratio:  48 dB (standard tape); 58 dB (Dolby on)

Frequency Response:

Standard Tape :  30 to 13,000 Hz

Chrome Tape :  30 to 16,000 Hz

Fast Winding Time:  within 80 sec (C-60 tape)

Inputs:

Line Input (Rec):  50 mV/300 k Ω

Microphone :  0,5 mV/ 50 k Ω 

Outputs:

Line Output (Playback) :  0,775 V/50 k Ω

Phones :  0,2 mW / 8 Ω

REC/P.B Jack :  DIN type

Semiconductors:

Amplifier Section :  39 Transitors; 1 Thyristor; 24 Diodes; 1 LED

Motor Section :  2 Transistors; 1 Diode

Power Requirement:  120 V, 60 Hz or 110 - 130 V, 220 - 240 V 50/60 Hz

Power Consumption:  13 watts

Dimensions (W x H x D):  396 x 96 x 242 mm (15-19/32" x 3-25/32" x 9-17/32")

Weight:  5,1 kg (11 lb 4 oz)

Technics RS-M231X cassette deck

Technics presents a stereo cassette deck with a rare combination; 3 major noise reduction systems, and a low price. In addition to the RS-M231X's Dolby B and C noise reduction circuitry is dbx, which doesn't just reduce background tape noise but eliminates it. We've also furnished the RS-M231X with soft-touch transport keys, a metal compatible MX head, and convenient  slider controls for input level and balance adjustment.

dbx, Dolby B and Dolby C

The most effective of the deck's noise reduction systems is dbx, which eliminates tape noise and gives your tape the ability to reproduce up to a 110 dB difference in volume levels (or dynamic range) of a live performance, dbx reduces noise by at least 30 dB, pushing tape hiss below audibility, and increases headroom by about 10 dB so the tape can accept loud music signals without distorting them. The result is concert-like realism.

The RS-M231X is also equipped with a dbx disc decoder, so you can experience the same live-performance excitement from the ever-increasing number of dbx-encoded LPs as you do from dbx-encoded tapes.

Dolby B, the noise reduction system used in many cassette decks and prerecorded tapes, and Dolby C, an improved version of Dolby B, both reduce tape noise, especially in the high frequency range, where tape hiss is most noticeable.

Soft-Touch Controls

The soft-touch controls, which require only a light touch to operate, boast an impressive array of convenience features. Mechanical logic allows you to switch from fast forward or rewind directly to play, without having to touch the "stop" key. For recording, just touch the "record" key instead of "record" and "play". And rewind auto-play begins playback automatically after the tape rewinds to the beginning. The deck also includes cue and review functions, and timer record/playback capability.

Input Level and Balance Slider Controls

The deck's dual slider system provides optimum precision in setting recording levels. For most recording, the master input level slider suffices adjusting both the left and right channels together. For such demanding situations as live recording, where microphones are used, the balance slider adjusts left/right channel balance.

Metal Compatible MX Head

Specially developed for metal tape compatibility, Technics' MX head handles metal tape's high signal and bias level requirements and provides smooth frequency response and wide dynamic range. Of course, this improves the performance of normal and CrO₂ tapes as well.

Other Features:

DC servo motor

Automatic mic/line input selector

Large illuminated level meters

Timer record/playback capability

Oil-damped cassette well door removable for easy maintenance.

Specifications

Track System:  4-track,2-channel stereo recording and playback

Tape Speed:  4,8 cm/s (1-7/8 ips)

Wow and Flutter:  0,048% WRMS

Frequency Response

Metal Tape :  20 - 19,000 Hz; 50 - 17,000 Hz (±3 dB)

CrO₂ Tape :  20 - 18,000 Hz ; 50 - 16,000 Hz (±3 dB)

Normal Tape :  20 - 17,000 Hz ; 50 - 15,000 Hz (±3 dB)

Dynamic Range:  110 dB (at 1 kHz, CrO₂) with dbx in

Max. Input Level Improvement:  10 dB or more with dbx in (at 1 kHz)

Signal-to-Noise Ratio

dbx In :  92 dB

Dolby C NR In  :  75 dB (CCIR)

Dolby B NR In  :  67 dB (CCIR)

NR Out  :  57 dB

Fast Forward and Rewind Time:  approx. 90 sec. C-60 tape

Input Sensitivity/Impedance:

Mic :  0,25 mV, applicable mic. Impedance 400 Ω  - 10 k Ω

Line :  60 mV/more than 47 k Ω

Output Level?Impedance:

Line :  400 mv/1,5 k Ω  or less

Headphones :  80 mv (at 8 Ω ), applicable headphone impedance 8 Ω  - 600 Ω

Bias Frequency:  80 kHz

Motor:  DC servo motor

Heads:  2-head system

MX head for record/playback

Double Gap Ferrite Head for erasure

Power Requirements:  AC 120 V, 50/60 Hz

Power Consumption:  16 W

Dimensions (W x H x D):  430 x 109 x 235 mm (16-7/8" x 4-5/16" x 9-1/4")

Weight:  4,4 kg (9 lbs 11 oz)

Mitsubishi M-T01 cassette deck

In designing the cassette tape deck for our microcomponent series we have not been too concerned with reducing the size; instead, while maintaining the same attractive, warm champagne gold hairline finish we have designed it to the same dimensions as the M-A01 power amplifier

Front Loading Format

Rather than adopt the horizontal insert type of cassette loading often used on compact cassette formats ,  inconvenient for tape head cleaning and subject to tape snarl-ups, the M-T01 features frontal loading, with full tape visibility and a hinged tape head cover that protects the head assembly from dust and higes down for easy access.

Feather-Touch Microswitch Controls

For smooth and rapid switching between different operatingirectly. To go from fast rewind into the play mode  just press the appropriate feather touch microswitches; the changeover is almost instantaneous, with no tape spillage. All operations are just as simple and foolproof.

ASPS

Mitsubishi's automatic spacing pause system ASPS puts a few seconds of silent spacing between different music selections without having to alter recording levels or go out of the recording mode.

Closed-Loop Dual-capstan Drive

For the last word in stable tape drive, greatly reducing drop-outs and changes in level due to variations in tape tension over the heads the tape is held between two capstans and their corresponding pinch rollers on the take-up and supply sides, unlike the normal single-capstan plus pinch roller combination. The mechanism itself is mounted on a high precision die-cast metal base, and is highly resistant to vibration and other harmful influences. This, and a phase locked loop (PLL) with a quartz-crystal oscillator as the standard for controlling the speed of the DC servomotor, bring wow and flutter down to a completely negligible 0,05% WRMS. The recording/playback head is of sendust, with excellent magnetic and wear-resistant properties, and is largely responsible for the good frequency response.

Peak level Meters

The fast-response peak reading meters on the M-T01 make it easy to achieve recordings with the maximum of Signal-to-Noise ratio and the minimum of distortion by giving accurate indication of critical peak signal levels.

Specifications:

Drive mechanism:  Closed loop dual capstan system

Noise Reduction System:  Dolby noise reduction system

Tape Speed:  4,75 cm/sec (1-7/8"  IPS)

Recording System:  AC bias (85 kHz)

Erasing Systen:  AC erasing (85 kHz)

Tracks:  4-track, 2-channel

Playback Equalization

Normal Position :  3,180u sec/ 120 µ sec

Fe-Cr Position :  3,180u sec/ 70 µ sec

Special Position :  3,180u sec/ 70 µ sec

Input Level /Impedance

MIC :  0,3 mV/1,8 k Ω

Line :  100 mV/120 k Ω

Output level/Impedance

Line :  420 mV/22 k Ω

Headphones :  1,5 mW/8 Ω

Motors:  PLL DC servo motor;  DC governed motor

Magnetic Heads

Record/Playback :  Sendust alloy

Erase :  Ferrite

Wow and Flutter:  0,045% (WRMS) ±0,09% (Wp-p, DIN)

Signal-to-Noise Ratio:

Weighted (Dolby NR Out):  56 dB (RMS); 52 dB (DIN)

Weighted (Dolby NR In ) :  64 dB (RMS)

Frequency Response:

Normal Position :  30 Hz - 15 kHz (40 Hz to 13 kHz ±3 dB)

Fe-Cr Position :  30 Hz - 17 kHz (40 Hz to 15 kHz ±3 dB)

Soecial Position : 30 Hz - 17 kHz (40 Hz to 15 kHz ±3 dB)

Power Consumption: 20 W

Dimensions (W x H x D):  270 x 140 x 246 mm (10-5/8" x 6-1/2" x 9-11/16")

Weight:  6,3 kg (14 lbs)