Search this site

Labels

4-channel ACCUPHASE ACOUSTIC ENERGY ADC ADCOM ADS ADVENT AIFAI AIWA AKAI AKG ALIANTE ALLISON ALTEC LANSING AMPEX AMPLIFON ANCIENT AUDIO AR ARCAM ARISTON ARMONIA AUDIA AUDIO ACADEMY AUDIO ANALOGUE AUDIO DYNAMICS AUDIO INNOVATIONS AUDIO NOTE AUDIO RESEARCH AUDIO-TECHNICA AUDIOLAB AUGUSTA AVALON AVID AXIOM Alchemist Audiostatic B-I-C BASF BASSOCONTINUO BEVERIDGE BEYER-DYNAMIC BOSE BOSTON BOWERS-WILKINS BOZAK BRAUN BRIONVEGA BSR Bang & Olufsen Bell Belt-Drive CAMBRIDGE CANTON CARVER CASTLE CD Player CD Transport CEC CELESTION CEMARK CERWIN-VEGA CHARIO CHARTWELL CIZEK CLARION CONRAD-JOHNSON COPLAND CORAL CORAL ELECTRONIC CREEK CROWN CYBERNET CYRUS California Audio Labs Centrex DAC DAHLQUIST DALI DAT DBX DECIBEL DENON DIAPASON DOKORDER DOMA DUAL DYNACO DYNAUDIO DYNAVECTOR Ditton EISA ELAC ELECTRO-VOICE EMPIRE EMT EPI EPICURE EPOS ES Series ESB ESOTERIC ESS EUMIG Esotec FAIRCHILD FOSTEX GALACTRON GALE GARRARD GENELEC GENESIS GIUSSANI RESEARCH GOLDENOTE GOODMANS GRAAF GRUNDIG H.H. SCOTT HAFLER HARBETH HARMAN/KARDON HEATHKIT HECO HIRTEL HITACHI HPM INDIANA LINE INFINITY JAMO JANSZEN JBL JEFF ROWLAND JENSEN JMLAB JVC KEF KENWOOD KLH KLIPSCH KOSS KRELL KYOCERA LAE LEAK LECTOR LENCO LESA LINN LOWTHER LUXMAN LYNGDORF Lafayette MAGNEPLANAR MARANTZ MARK LEVINSON MARTEL MARTINLOGAN MARUNI MASH MAXELL MBL MERIDIAN MERITON MICRO SEIKI MICRO-ACOUSTICS MIRAGE MISSION MITSUBISHI MONITOR AUDIO MONRIO MORDAUNT-SHORT MUSICAL FIDELITY MYRYAD McIntosh McLAREN NAD NAGRA NAKAMICHI NHT NIKKO NORESCO NOVA ONKYO OPERA OPTONICA ORTOFON PANASONIC PARADIGM PATHOS PEARL PHASE LINEAR PHILIPS PICKERING POLK AUDIO PSB Power-amplifier Pre-amplifier Pre-phono Pro-Ject QUAD RADFORD RCF REK-O-KUT REVOX ROGERS ROKSAN ROTEL ROYD RUARK Reel to Reel SACD SAE SANYO SENNHEISER SHARP SHERWOOD SHURE SIARE SIGNET SME SOMA SONAB SONUS FABER SONY SOTA SPECTRAL STANTON STAX STILE ITALIANO STRUSS SUGDEN SUPERSCOPE Soundcraftsmen Spica Stereo 8 Synthesis TAC TAD TAMON TANDBERG TANNOY TASCAM TDK TDL TEAC TECHNICS THE FISHER THIEL THORENS TOSHIBA TRANSCRIPTOR TRIO ULIX UNISON RESEARCH UREI UTAH Uni-Q VANDERSTEEN VOCE DIVINA VPI WADIA WHARFEDALE XAVIAN YAMAHA ZENITH ZINGALI amplifier cartridge direct-drive headphones idler italian lathe linear loudspeaker pioneer quadraphonic receiver sansui tangential tonearm tuner turntable unitra

What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Showing posts with label tape deck. Show all posts
Showing posts with label tape deck. Show all posts

Kenwood KX-700 cassette deck

Stereo cassette deck with Dolby noise reduction system

A state-of-the-art. Cassette deck with reel-to-reel quality featuring

Luxurious in every respect, the KX-700 combines reel-to-reel quality with cassette convenience. Its patented Dolby Noise Reduction System (Type B) virtually eliminates high frequency background noise without affecting high frequency signals. The superferrite record-and-play head, with its precision micro-gap, utilizes bias frequencies to optimum advantage for top quality reproduction, and a three-way Tape Selector permits a choice of the correct bias for Regular, Low Noise or Chromium Dioxide tapes. A measure of the unit's fine performance is indicated by a few of its excellent specs.

 

Special features

Patented Dolby Noise Reduction System - will filter out high frequency background noises (hiss sounds) inherent in the recording process, or will play back pre-recorded Dolbyized tapes with an almost silent background, improving Signal-to-Noise Ratio by approximately 10 dB for all tape types.

Super-Ferrite Core head - is made of high density and extremely hard ferrite magnetic material to provide exceptional long life. The material permits the fabrication of an extremely narrow, precise head gap that allows bias frequencies to be utilized to optimum advantage in the recording and reproduction of high frequency sounds. The unit also incorporates an erase head.

Three-Way Tape Selection Push-Button Switch - permits a choice of the correct bias frequency for Regular, Low Noise or Chromium Dioxide Tapes, providing maximum flexibility in achieving the finest sound reproduction from each tape type.

Slide Lever Volume Controls - two separate left and right slide Lever Controls for Record and Play offer easy accurate level adjustment.

Two Large VU Meters - one for each channel are easy to read for accurate level check

Three Digit Counter - with re-set button provides tape location at a glance

Piano Key Controls - provide feather-touch control for Eject; Stop; Reverse; Play, Fast Forward, Record and Pause. The Pause function is particularly convenient for tape editing

Input/Output Terminals - provide maximum convenience, with 2 Microphone jacks, Phone jack for 8 Ω  stereo headphones; DIN connector, and Line-IN/Line-Out Terminals.

Low-Distortion, High S/N Preamp - use of 2 FETs in the first stage of preamplification and 14 silicon transistors having low noise, high gain characteristics assure low distortion and a high Signal-to-Noise Ratio.

Automatic Stop - at tape's end in any mode recording, playback fast forward, or reverse, the KX-700 will automatically stop, with the pinch roller lifted away from the capstan to prevent any capstan displacement.

 


Specifications

Type:  4-track, 2 channel stereo and monauraal

Heads:  Super ferrite Core - Record/Play and Erase

Motor:  Double drive, Hysteresis Synchronous

Adaptable Tape:  regular, Low Noise, Chromium  Dioxide C-30; C-60; C-90; C-120

Tape Speed:  1-7/8 ips

Amplifier:  2 FETs, 14 Silicon Transistors

Wow and Flutter:  less than 0,13%

Frequency Response:

Chromium Dioxide tape :  25 - 15,000 Hz

Regular Tape :  25 - 13,000 Hz

Signal-to-Noise Ratio with Dolby

Chromium Dioxide tape :  58 dB

Regular Tap :  55 dB

Signal-to-Noise Ratio without Dolby

Chromium Dioxide tape :  48 dB

Regular Tap :  45 dB

Recording Bias:  85 kHz

Separation

Between Tracks :  better than40 dB

Between Channels :  better than 40 dB

FF/Rewind Time :  less than 75 sec. C-60 tape

Inputs Sensitivity/Impedance

2 Mix :  0,3 mV/600 Ω

2 Line 77,5 mV/680 k Ω

Output level/Impedance:

2 Line :  0,775 V /100 k Ω

Headphone :  8-16 Ω

DIN Connectors

Input :  9,8 mV (min. Input Level)

Output :  0,775 V (below 100 k ohms

Power Supply:  110 - 120 V AC, 50/60 Hz

Power Consumption:  20 W

Dimensions (W x H x D):  15-1/2" x 4-1/2" x 11-1/4"

Weight:  13 lbs

Toshiba KT-805 8-track deck

8-Track Record/Playback Deck, features:

8-track stereo recording device

Convenient automatic shut off mechanism

Repeat button for repeat reproduction of same channel

Fast forward, four times faster than recording speed

Push-button cartridge ejection for easy cartridge removal

Professional slide type level controls

Large, easy-to-see, accurate level meter.

 


Specifications

Usable Tape:  8-track cartridge

Tape Speed:  9,5 cm/sec. (3-3/4 ips)

Track and Channel:  8 tracks, 2 channels

Bias and Erasure:  AC 60 kHz

Input Jack:  Microphone, Line-in, DIN

Output Jack:  Line-out, Stereo headphone, DIN

Motor: Long life DC motor

Frequency Response:  50 - 10,000 Hz

Wow and Flutter:  0,15% WRMS

Crosstalk:  55 dB

Channel Separation:  50 dB

Signal-to-Noise Ratio:  45 dB

Erasure:  55 dB

Input Level/Impedance:

Line-in :  0,1 mV/1 M Ω

DIN-in :  10 mV/100 k Ω

MIC :  0,5 mV/10 k Ω

Output Level/Impedance

Line-out :  0,5 V/10 k Ω

DIN-out :  o,5 V/10 K Ω

Headphone:  0,2 mW/8 Ω

FF Time:  9,5 cm/sec. X3

Controls:  Slide recording level, power switch

Operations:  F.F., Repeat, Eject, Program Select

Auxiliary Device:  2-recording level meter

Semiconductors:  10 Transistors; 8 Diodes

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

Dimensions (W x H x D):  391 x 139 x 255 mm (15-3/8" x 5-1/2" x 10")

Weight:  5,8 kg (12-13/16 lbs)


 

Toshiba KT-403D cassette deck

 

Stereo cassette deck, features:

All silicon transistorized circuitry, including push-pull bias oscillator expand frequency characteristics

Noise suppress switch for noise-free reproduction

Quiet 4-pole hysteresis synchronous motor insures stabilized revolution

Tape counter simplifies indexing

Large twin VU meters aid in monitoring recording level

Slide volume controls improve operating ease.

 


Specifications

Usable Tape:  Compact cassette

Track and Channel: 4-track, stereo/monaural

Tape Speed: 4,8 cm/sec (1-7/8 ips)

Bias and Erasure:  AC 55 kHz

Input Jack:  Line-input, DIN, Mic

Output Jack :  Line-output, Headphones, DIN

Motor:  4-pole hysteresis synchronous motor

Output Level/Impedance:  0,5V/10 K Ω

Frequency Response:  50 - 10,000 Hz

Tape Speed Tolerance:  +2%, -1%

Wow and Flutter:  0,25% WRMS

Signal-to-Noise Ratio:  40 dB

Erasure:  55 dB

Input Level/Impedance:

Mic :  -65 dB /10 K Ω

Line-in :  -20 dB/1 m Ω

FF Time:  120 sec. (C-60)

Rewind Time:  80 sec. (C-60)

Controls:  Power switch, volume control, noise suppression switch, cassette up, REC

Operations:  Rotary (Play, Stop, Rew, F.F.)

Auxiliary Device:  2-VU meter, 3-digit tape counter

Semiconductors:  11 Transistors; 6 Diodes

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

Cabinet:  Natural walnut

Dimensions (W x H x D):  300 x 105 x 200 mm (11-13/16" x 4-1/8" x 7-7/8")

Weight:  2,5 kg (5,5 lbs)

 

Pioneer CT-7R cassette deck

Auto-Reverse Playback/Recording Cassette Deck

The CT-7R records and plays back both sides of a tape, automatically. Now you can record up to 90 minutes of music (with C-90 cassette) without interruption and play it back over and over as long as you like. This may be a rare feature but what's even rarer is that the CT-7R is direct-drive.

As in the more expensive models, the transport in the CT-7R uses three-direct-drive-motor, each a Pioneer brushless Hall type. This contributes to the low wow and flutter of this deck, 0,04% (WRMS) or less.

The recording/playback head is constructed of Pioneer-developed Ribbon Sendust that is three to four times thinner than those used in conventional sendust heads. This explains the extended high frequency response of this deck - to 20,000 Hz. Transient response is superior and bass response is solid. The :Small-Window" Erase Head assures total erasure of previous recordings.

And like the more expensive models, the CT-7R is endowed with a full complement of Computer-Aided Conveniences. It's easy to find the end of recorded program material on a tape, cue in on any desired selection, return to the very beginning of the start of the next selection, hear the same selection over and over again, and skip the blank, programless section at the end of the tape and start play right at the beginning of the first selection of the flip side - without even touching the operating controls.

A 4-bit microcompuer, programmed to order, controls every operation for sure and quick tape transport motion. The three-direct-drive-motor tape transport means operational ease such as fast direct change of modes and flying-start recording.

In addition to standard Dolby-B noise reduction, the CT-7R has Dolby Labs newest circuit, Dolby-C. the Dolby-C provides an additional 10 dB of noise reduction (at 5 kHz) over standard Dolby-B's. that's a total of 20 dB of noise reduction. It also has increased MOL (Maximum Output Level) to assure an extended high end.

The Auto Tape Selector detects coded recesses along the edge of each cassette casing and automatically sets the deck to the proper bias and equalization settings. An 8-LED bar-graph display )one per channel) is accurate and responsive. Other features are; One-Touch Recording, Recording Mute, Timer-assisted record/playback, wired remote control and two-way Memory Stop.

 


 Subfunctions:

Auto-reverse, auto repeat functions

MS/SKIP (Music Search/Skip) system

Music Repeat system

Blank Search system

Index Scan system

Rec Mute switch

Dolby NR system (B type/ C type / OFF) with LED indicator lamp

Stand-by mechanism with unattended recording and playback

3 position Auto tape selector (Norm/CrO₂/Metal)

Full automatic stop mechanism

Memory Stop function (FF, REW)

2 color digital level meter

3 digit mechanical tape counter

IC-based logic control

Cassette compartment illumination

 


Specifications

Systems:  Compact cassette, 2-channel stereo

Motor: 

1 x DC servo motor (for driving the capstan); 2 x DC high-torque motor (for driving the reel)

Heads: 1 x "Ribbon Sendust" record/playback head; 1 x Erasing Ferrite head

Fast Winding Time:  approx.. 90 sec C-60 tape

Wow and Flutter:  no more than 0,04% (WRMS). No More than 0,15% (DIN)

Frequency Response -20 dB Recording

Normal, LH Tape :  20 - 16,000 Hz (25 to 14,000 Hz ±3 dB)

CrO₂ Tape :  20 - 18,000 Hz (25 to 16,000 Hz ±3 dB) [0 dB rec; 25 to 10,000 Hz]

Metal Tape :  20 - 20,000 Hz (25 to 17,500 Hz ±3 dB) [0 dB rec; 25 to 15,000 Hz]

Signal-to-Noise Ratio

Dolby NR Off :  more than 59 dB

Dolby NR On :  more than 69 dB (Dolby-B); more than 79 dB (Dolby-C)

Total Harmonic Distortion:  no more than 1,2% (0 dB)

Input Sensitivity/max. Allowable Input/impedance

Mic (L, R) :  0,3 mV/ 30 mV/ 12 k Ω  (ref. MIC Impedance: 250 Ω  to 10 K Ω )

Line (input) :  50 mV/ 25 v/ 100 K Ω  (ref. Level/Load Impedance)

Output Level/ Impedance

Line (x2) :  450 mV/50 k Ω

Headphones :  60 mV/ 8 Ω 

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

Power Consumption:  36-45 watts

Dimensions (W x H x D):  420 x 99,5 x 270 mm (16-9/16" x 3-15/16" x 10-5/8")

Weight:  5,3 kg (12 lb)


 

Pioneer CT-6R cassette deck

A full-featured cassette deck

You'll find in the CT-6R all the essential technology of the finest Pioneer decks. Features like the Ribbon Sendust Head, 3-motor direct drive design, C.A.C. (Computer-Aided Convenience), ans so forth. It's priced, however, within the reach of any audiophile.

Just as in our finest decks, you'll find a Pioneer-exclusive head design - the Ribbon Sendust Head - for recording and playback in this model. This laminated head uses a dozen ultra-fine sendust "ribbons" to reduce eddy currents and therefore reduce core loss. This results in extended high-frequency response, all the way to the limits of audiobility. Transient response and treble clarity are improved for better still reproduction quality. During playback this same head is used for either direction of tape travel, assuring matched response regardless of direction. During recording the "Small-Window" Erase Head is also at work wiping old recordings completely clean.

Another design feature found in our more expensive models is the three-direct-drive-motor system. One motor drives the capstan and the other two drive the reels. These brushless Hall motors are largely responsible for the low wow and flutter of this deck - a mere 0,04% (WRMS). This transport design also improves head-to-tape contact for fewer dropouts and variations in recording or playback levels

Hiss and MOL-limited saturation distortion have become problems of the past. New Dolby-C noise reduction has reduced noise by 20 dB at 5 kHz, while improving high-frequency response by expanding the MOL (Maximum Output Level). Now, the usable dynamic range - up to 90 dB - is sufficiently wide to match even digital or direct-cut recordings.

The C.A.C. (Computer-Aided Convenience) features that the CT-6R offers include index Scan, Music Search and Blank Skip and Reverse. And the three-direct-drive-motor tape transport offers quick and direct change of modes and flying-start recording.

Program peaks are shown by a responsive 8-LED bar-graph display (one per channel) Other advanced deck features include the Auto Tape Selector, one-Touch Recording, Recording Mute, a wired remote control and more.

 


Subfunctions:

Auto-reverse, auto repeat functions

MS/SKIP (Music Search/Skip) system

Index Scan system

Rec Mute switch

Dolby NR system (B type/ C type / OFF) with LED indicator lamp

Stand-by mechanism with unattended recording and playback

3 position Auto tape selector (Norm/CrO₂/Metal)

Full automatic stop mechanism

2 color digital level meter

3 digit mechanical tape counter

IC-based logic control

Cassette compartment illumination

 


Specifications

Systems:  Compact cassette, 2-channel stereo

Motor: 

1 x DC servo motor (for driving the capstan); 2 x DC high-torque motor (for driving the reel)

Heads: 1 x "Ribbon Sendust" record/playback head; 1 x Erasing Ferrite head

Fast Winding Time:  approx.. 90 sec C-60 tape

Wow and Flutter:  no more than 0,04% (WRMS). No More than 0,15% (DIN)

Frequency Response -20 dB Recording

Normal, LH Tape :  20 - 16,000 Hz (25 to 14,000 Hz ±3 dB)

CrO₂ Tape :  20 - 18,000 Hz (25 to 18,000 Hz ±3 dB) [0 dB rec; 25 to 10,000 Hz]

Metal Tape :  20 - 20,000 Hz (25 to 17,500 Hz ±3 dB) [0 dB rec; 25 to 15,000 Hz]

Signal-to-Noise Ratio

Dolby NR Off :  more than 59 dB

Dolny NR On :  more than 69 dB (Dolby-B); more than 79 dB (Dolby-C)

Total Harmonic Distortion:  no more than 1,2% (0 dB)

Input Sensitivity/max. Allowable Input/impedance

Mic (L, R) :  0,3 mV/ 30 mV/ 12 k Ω  (ref. MIC Impedance: 250 Ω  to 10 K Ω )

Line (input) :  50 mV/ 25 v/ 100 K Ω  (ref. Level/Load Impedance)

Output Level/ Impedance

Line (x2) :  450 mV/50 k Ω

Headphones :  60 mV/ 8 Ω 

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

Power Consumption:  36-45 watts

Dimensions (W x H x D):  420 x 99,5 x 270 mm (16-9/16" x 3-15/16" x 10-5/8")

Weight:  5,3 kg (12 lb)


 

JVC KD-A33 cassette tape deck


Metal-compatible cassette deck

If you've found that an affordable price usually means a sacrifice of performance, take heart. The JVC KD-A33 metal compatible cassette deck includes much of the technology found in our most expensive decks. Yet it happens to be one of our least expensive decks.

For example, it uses Sen-Alloy heads. These JVC-developed heads handle tremendously high currents with ease, so they're especially well  suited for recording and erasing metal tape. And SA's superb electromagnetic and physical properties give you accurate frequency balance, superb extension and low distortion through years of use.

When you use metal tape with the KD-A33, you'll get all the performance you expect from metal . But when your budget  dictates using a less expensive ferric-oxide tape, you can still get metal-like sound thanks to another JVC development - Super ANRS.

In recording, Super ANRE reduces the level of high-frequency signals so the tape can handle them without, saturating, in playback, it boosts them back to their original level. As a result, sounds like cymbal crashes, trumpet blast, and spoken sibilants (normally the downfall of cassette recording) are reproduced with astonishing clarity and fidelity to the original

 

 
And like our most expensive decks, the KD-A33 has logic-governed solenoid transport controls. You can switch directly between modes, even from "rewind" to "fast forward" with just a light touch of a switch. The KD-A33 also has provisions for adding a timer device and optional remote control.

Specifications

Type:  Stereo cassette deck

Track System:  4-track, 2-channel

Tape Speed:  4,8 cm/s (1-7/8 inch/sec)

Frequency Response (0 VU Recording)

Metal Tape :  30 - 12,500 Hz (±3 dB)

SA/CrO₂ Tape :  30 - 8,000 Hz (±3 dB)

SF/Normal Tape :  30 - 8,000 Hz (±3 dB)

Frequency Response (-20 VU Recording)

Metal Tape :  20 - 18,000 Hz [30-16,000 Hz ±3 dB]

SA/CrO₂ Tape :  20 - 18,000 Hz  [30-16,000 Hz ±3 dB]

SF/Normal Tape :  20 - 17,000 Hz  [30-16,000 Hz ±3 dB]

Signal-to-Noise Ratio (from peak level, weighted, Metal Tape) :  60 dB

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

(DIN  45 500 weighted)

Effect of Super ANRS (Normal Tape)

Improvement of S/N :  the same as with ANRS

Improvement of Frequency Response :

0 VU Recording :  6 dB at 10 kHz

+5 VU Recording :  12 dB at 10 kHz

Improvement of Distortion :

0 VU Recording :  3% or less at 10 kHz

+5 VU Recording :  2% or less at 10 kHz

Wow and Flutter:0,04% (WRMS); 0,14% (DIN  45 500)

Crosstalk:  65 dB (1 kHz)

Harmonic Distortion :  K3; 0,4$ T.H.D.; 1,0% (metal Tape , 1 kHz 0 VU)

Bias :  AC Bias

Erasure :  AC erasure (85 kHz)

Heads:  2 heads; Sen Alloy head for recording/playback and 2-gap Sen Alloy head for erasure

Motors : 

Capstan :  Electronic Gaverned DC motor

Reel :  DC motor

Fast Forward Time :  85 sec. With C-60 cassette

Rewind Time :  85 sec. With C-60 cassette

Semiconductors:  7 ICs; 57 Transistors; 31 Diodes

Input Sensitivity/Impedance

Mic Jack x 2 :  0,2 mV (max.)-72 dBs/ 600 Ω  - 10 K Ω  (matching impedance

Line Input x 2 :  80 mV (-20 dBs)/100 K Ω

Output Level/Impedance

Line x 2 :  300 mV/5 ko hm

Phones x 1 :  0,3 mW/ 8 Ω  - 1 k Ω

DIN Socket: 

Input Level :  0,1 mV/k Ω

Input Impedance :  10 K Ω

Output Level :  300 mV (8 Ω )

Output Impedance :  5,5 k Ω

Matching Impedance :  50 K Ω  or more

Power Supply:  AC 240/220/120 V, 50/60 Hz

Power Consumption:  21 W

Dimensions (W x H x D):420 x 120 x 300 mm (16-1/2: x 4-3/4" x 11-7/8")

Weight:  6,7 kg (14,7 lbs)


 

Pioneer CT-5 cassette deck

Designed for Easy Operation

The CT-5 is designed for utmost ease of operation and control. Its IC logic-controlled tape transport provides touch operation and direct change of modes. The ALC - Automatic Level Control - may be switched in for fuss-free wide-dynamic-range recording. Music Search lets you find the song you want to hear easily.

The tape transport of the CT-5 is controlled by a logic circuit contained in a specially programmed IC . It determines the sequence in which "events" happen. To set the deck in the appropriate button. And we mean touch, because these are all light-touch mode buttons.

The record/play and erase heads are specially designed to match the exacting requirements of metal tape. Sendust reinforced permalloy is used for the former because of its excellent wear characteristics (over 1,000 abrasive hours of use), its resistance to saturation and its high reliability. The latter is a double-gap ferrite type, especially chosen for its high saturation magnetic flux density and high efficiency.

The bulit-in Dolby-C noise reduction system lets you enjoy truly dynamic musical reproduction, free of audible hiss. A switchable MPX (Multiplex) filter eliminates carrier leakage from a faulty tuner so that noise reduction is achieved correctly. Of note to convenience-oriented recordists are ALC and Music Search. ALC automatically adjust an incoming signal to its optimum level during recording so that on playback the program sounds dynamically full and free of objectionable distortion. If desired, the circuit may be switched out and the correct recording level manually set with assistance from the 6-LED bar-graph level display (one per channel). Music Search is a convenient feature that lets you easily locate the beginning of the program you 're presently listening to or the beginning of the next program.

Borrowed from the more expensive models, are such features as Auto Tape Selector, one-Touch recording and timer-assisted recording/playback.

 


Specifications

Systems:  Compact cassette, 2-channel stereo

Motor:  DC servo motor

Heads: 1 x record/playback Hard Permalloy heads; 1 x Erasing Ferrite head

Fast Winding Time:  approx.. 100 sec C-60 tape

Wow and Flutter:  no more than 0,05% (WRMS)

Frequency Response -20 dB Recording

Normal, LH Tape :  20 - 15,000 Hz (30 to 14,000 Hz ±3 dB)

CrO₂ Tape :  20 - 17,000 Hz (30 to 16,000 Hz ±3 dB)

Metal Tape :  20 - 18,000 Hz (30 to 17,000 Hz ±3 dB)

Signal-to-Noise Ratio

Dolby NR Off :  more than 50 dB

Dolny NR On :  more than 68 dB (Dolby-B); more than 78 dB (Dolby-C)

Total Harmonic Distortion:  no more than 1,2% (0db)

Input Sensitivity/impedance

Mic (L, R) :  0,3 mV/ 10 k Ω 

Maximum allowable Input Sensitivity :  57 mV (Ref. Mic impedance: 250 Ω  - 10 k Ω )

Line (x2) :  50 mV/ 100 k Ω

Maximum allowable Input Sensitivity :  22 V

Output Level/ Impedance

Line (x2) :  450 mV/50 k Ω

Headphones :  65 mV/ 8 Ω 

Maximum allowable Level :  160 mV

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

Power Consumption:  23 watts

Dimensions (W x H x D):  420 x 99,5 x 243,5 mm (16-916" x 3-15/16" x 9-9/16")

Weight:  4,5 kg (9 lb 15 oz)


 

Pioneer CT-4 cassette deck

A Basic Cassette Deck

The CT-4 from Pioneer is an exemplary cassette deck for novice recordists. It's loaded with features to facilitate recording and playback. A case in point is its "power-assisted" tape transport, a feature unusual in a deck in this price range.

Despite being Pioneer's least expensive model, the CT-4 offers touch-operated control buttons, not old-fashioned piano-key type levers. Making this feature possible is the "power-assisted" tape transport, an ingenious Pioneer design that exploits the natural inertia of the rotating flywheel to provide power for mode changes. Heavy-duty, pwer-consuming plungers have been entirely replaced by this simple and dependable mechanism.

As in the more expensive model, a special sendust-reinforces permalloy record/play head is combined with a double-gap ferrite erase head to form a perfect match for metal tape. Each features high wear resistance, low distortion and high reliability. Here's a description of some more features that prove that Pioneer's "basic" deck is not so basic. Set the deck in the play mode and touch the fast forward button.

You're automatically whisked to the beginning of the next selection. Touch the rewind button instead of fast forward and you're back at the beginning of the song currently playing. This amazing feature we call "Music Search". Recording begins by merely touching the record button; you don't need to push the play button at the same time. Recording Mute lets you make blanks between selections without touching the record level controls. If you so desire, you can couple this deck with an optional timer to make unattended recordings or wake up to taped music.

Last but far from least, two electronic features make your recordings sound better. One is the Dolby-C noise reduction system that reduces hiss and expands high-frequency response. The other is the 6-LED bar-graph display (one per channel) that warns of impending tape saturation distortion with electronic responsiveness. As you can see, Pioneer expects a lot from even their basics.

 


Specifications

Type: Single cassette tape deck

Track System:  4-track, 2-channel stereo

Tape Speed:  4.76 cm/s

Heads:  1 x record/playback, 1 x erase

Motor:  Electronically controlled DC Servo Motor

Tape Type:  type I (Normal), CrO2, Metal

Noise Reduction:  B, C

Frequency Response:

Normal Tape : 25 - 14,000 Hz

CrO₂ Tape : 25 - 16,000 Hz

Metal Tape : 25 - 17,000 Hz

Signal to Noise Ratio:  57 dB

Wow and Flutter:  0.05%

Total Harmonic Distortion:  1.2%

Input:

Line : 60 mV

Mic :  0.3 mV / 30 k ohm

Output

Line:  450 mV / 50 k Ω

Headphones :  63-90 mV / 8 Ω  

DIN Play/Rec Socket :  12 mV

Power consumption: 16 W

Dimensions (WxHxD): 420 x 120 x 245 mm

Weight:  4.4 kg


 

Sony TC-K5 cassette deck

The front-loading Tone Controls-K5 is Sony's middleweight champion - with heavyweight features and performance that set it apart from other cassette decks in its class. Features and performance that give you maximum value. And the quality that only our specialized recording-equipment background can provide. Many year's experience in tape-deck manufacturing and magnetic tape production - applied to deliver maximum cassette-deck performance, convenience and dependability.

 

Design and Performance

The K5's tape transport system has been designed for excellence in every critical performance area, including Frequency Response, Signal-to-Noise Ratio and Wow and Flutter.

A DC servo-controlled motor, with integral FG (frequency generator) and electronic servo-circuit, is employed for capstan-drive. This advanced design assures the utmost speed accuracy, automatically compensating for any interference which would cause speed irregularities, and smooth, stable tape travel results. the audible result is reflected in a Wow and Flutter level only 0,05% (WRMS). In our special DC servo-controlled motor, a tiny frequency generator, mounted at the bottom of the motor shaft, produces an AC signal whose frequency is proportional to the motor's instantaneous speed. This signal is run through a limiter, or 'WAVE FORM SHAPER", then a "frequency-to-voltage converter" which produces a DC output proportional to the signal fed to it. This output is compared with a highly stable DC reference voltage in a "voltage comparator". And the "difference voltage" from the comparator stage is fed to a DC amplifier which then drives the motor at exactly the correct speed. Unlike conventional servo-controlled motors, the Sony FG servo system maintains constant speed under widely varying temperature conditions. And to assure low noise, the motor is triply shielded with vibration-proof rubber, aluminum and steel. In addition, the motor is free from interference generated by external noise.

 


Features:

Front-loading, front-panel control convenience

DC servo-controlled motor with frequency generator

Ferrite-and=ferrite head

Auto-play mechanism for auto tape-repeat, with tape counter/memory for auto-start

Three-digit tape counter with automatic memory stop

Dolby noise reduction system

Switchable FM multiplex filter for Dolby recording of stereo FM broadcasts

Three-position bias and equalization switches for normal, ferri-chrome and chromium dioxide tapes

Standby capability for timer-activated record or playback

Rec-mute for instant muting during recording

Large easy-to-read VU meters, plus three LEDs for peak level indication

All-mode automatic shut-off

Front-panel line output/headphone level control

Air-damped cassette compartment for smooth eject, plus cassette-compartment illumination for checking tape supply

Removable cassette compartment lid for easy maintenance

 


Specifications

Tape Type:  Compact cassette, 4 tracks, 2-channel stereo

Tape Speed:  1-7/8 ips

Heads: 1 x Rec/Pb head; 1 x Erase heads for each direction

Motors:  One

Servo System:  Frequency

Drive System: Single-capstan

Fast winding time:  90 sec C-60 cassette

Wow and Flutter:  0,05% WRMS

Frequency Response:

FeCr Tape :  30 Hz - 16 kHz ±3 dB

CrO₂ Tape :  30 Hz - 15 kHz ±3 dB

Normal Tape :  30 Hz - 13 kHz ±3 dB

Signal-to-Noise Ratio (Dolby off, peak)

FeCr :  59 dB

CrO₂ :  55 dB

Normal :  53 dB

Total Harmonic Distortion :  1,3%

Input Sensitivity/Impedance

Microphone :  0,25 mV/low

Line :  0,775 V/100 k Ω (Fixed);  0,026-0,775 V/100 K Ω  (Variable)

Line Output Level & min. Load Impedance :  0,435 V/ 10 k Ω

Headphone Impedance:  Low

Bias Frequency:  105 kHz

General

Power Requirements:  AC 120 V, 60 Hz

Power Consumption:  11 W

Dimensions (H X W x D):  5-3/4" x 17-1/8" x 11-1/2"

Weight:  15 lbs 4 oz


 

Sony TC-K96R cassette deck

Automatic Reverse Stereo Cassette Deck

The Tone Controls-K86R offers outstanding Sony cassette-deck performance with an unprecedented degree of operating convenience. Automatic reverse is provided in both playback and record modes, and both directions of tape travel, so you never have to touch the cassette to change tape sides. The K96R also includes a remote control capability for complete record playback control up to 16-feet away from the unit. And, of course, the K96R features Sony dependability - dependability that's based on over 30 years' experience in recording technology and magnetic tape production. So il you're looking for top performance and automatic convenience, the K96R is the deck to count on.

Features:

Automatic reverse in both playback and record modes, so cassette never has to be turned over manually

Microprocessor-controlled, pre-selected record/playback mode, with positions for repeating complete tape three times, repeating complete tape once, or just playing or recording one tape side a time.

Roto bi-lateral, ferrite-and-ferrite record/playback head, for uniform magnetization in both directions of tape travel

New, Sony developed BSL (Brushlee and Slotless)capstan-drive motor, with built-in frequency generator.

Separate BSL reel-drive motor for even tape tension

All operational controls mounted on removable front panel, giving remote-control capability up to 16 feet away

Solenoid-assisted tape-mode selectors, with illumination when individual transport function is engaged

Logic-controlled tape transport for intermode switching without going through stop position

Front-loading, front-panel control convenience

Dolby noise reduction system

Switchable FM multiplex filter for Dolby recording of stereo FM broadcasts

Three-position bias and equalization switches for normal, ferri-chrome (FeCr) and chromium dioxide (CrO₂) tapes

Standby capability for timer-activated record or playback

Rec-mute for instant muting during recording

Three-digit tape counter with automatic memory stop or play

Large, easy-to-read VU meters, plus three LEDs for peak level indication

Line and microphone mixing, with separate level controls for each channel

Headphone/Line output level control

All-mode automatic shut-off

Air-damped cassette compartment for smooth eject

"Punch-in" recording capability via logic control

Removable cassette compartment lid for easy maintenance

 


Specifications

Tape Type:  Compact cassette, 4 tracks, 2-channel stereo

Tape Speed:  1-7/8 ips

Heads: 1 x Rec/Pb head; 2 x Erase heads for each direction

Motors:  Two

Servo System:  Frequency

Drive System: Single-capstan for each direction

Fast winding time:  85 sec C-60 cassette

Wow and Flutter:  0,05% WRMS

Frequency Response:

FeCr Tape :  30 Hz - 16 kHz ±3 dB

CrO₂ Tape :  30 Hz - 15 kHz ±3 dB

Normal Tape :  30 Hz - 13 kHz ±3 dB

Signal-to-Noise Ratio (Dolby off, peak)

FeCr :  59 dB

CrO₂ :  55 dB

Normal :  53 dB

Total Harmonic Distortion :  1,3%

Input Sensitivity/Impedance

Microphone :  0,25 mV/low

Line :  77,5 mV/100 k Ω

Line Output Level & min. Load Impedance

Fixed :  0,435 V/ 10 k Ω

Variable :  0,0775 - 0,775 V / 10 k Ω

Headphone Impedance:  Low

Bias Frequency:  106 kHz

General

Power Requirements:  AC 120 V, 60 Hz

Power Consumption:  30 W

AC Convenience Outlets:  1 unswitched, 300 W max.

Dimensions (H x W x D):  6-1/8" x 18-1/8" x 12-7/8"

Weight:  20 lbs 12 oz

Accessory:  16-foot remote control cable