JVC KD-95 cassette tape deck

The best of JVC's new lineup of high-performance cassette decks, the KD-95 features nearly all the JVC exclusives introduced on preceding pages. Its electronics and mechanism are truly sophisticated and provide the widest dynamic range, lowest distortion and least noise yet achieved in a stereo cassette configuration. Its outstanding specifications are ample evidence of a JVC engineering triumph.

 

Mechanical Accuracy

The JVC KD-95 employs two motors - a precision frequency-generator (FG) servomotor for capstan drive and a DC motor for reel drive, all operations are undertaken electronically by the JVC developed TTL (Transistor-Transistor Logic) IC which activates three electromagnetic plungers; a light touch of any control button allows you to move from one mode to another without having to go through Stop. Also, the deck's large flywheel - 80 mm in diameter - is coupled to the capstan to help reduce wow and flutter. And finally, a professional touch has been added to the KD-95; its head assembly has screws which allow the user to adjust the head azimuth, height and tilt.

 

Sophisticated Electronics

We used the best of JVC electronics technology in designing our top-of-the-line KD-95. first, its recording amp is formed of the 2-stage direct-coupled NPN configuration featuring high linearity. Second, its equalized circuit is of the DC feedback type for excellent transient characteristics and unmuddiet lows. Third, convenient Recording Equalizer and 400 Hz Signal Oscillator circuits are included.

 

Recording Conveniences

Inn JVC's "Real Time" pause mechanism, the heads are in contact with the tape even in the pause mode. The Timer Standby facility inside the KD-95 permits repeated, interrupted record and play - a feature rarely found on cassette decks. Also offered are two recording circuits, one for Mic/DIN input and the other for Line input, which allow you to mix microphone sounds with other sources. Plus a pair of rack-mounting brackets, which is a standard accessory in every KD-95.

 

Specifications

Type:  Stereo cassette deck

Track System:  4-track, 2-channel

Cassettes:  C-30; C-60; C-90

Frequency Response:

Chrome Tape

Nominal :  20 - 18,000 Hz

Typical :  30 - 16,000 Hz

SF Tape

Nominal :  20 - 17,000 Hz

Typical :  30 - 15,000 Hz

Signal-to-Noise Ratio:  56 dB (from peak level, weighted)

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

Effect of ANRS (Normal Tape)

Improvement of SN :  the same with ANRS

Improvement of Frequency Response :  6 dB at 10 kHz (0VU recording); 12 dB at 10 kHz (+5VU recording)

Improvement of Distortion : 3% at 10 kHz (0VU recording)

Wow and Flutter:  0,05% (WRMS); ±0,2% (DIN 45500)

Crosstalk:  65 dB

Harmonic Distortion:  1,2 %

Bias:  AC bias (95 kHz)

Erasure:  AC erasure (95 kHz)

Heads:

Recording/Playback :  Sen-Alloy head

Erasure :  Double gap, Ferrite head

Motors:

1 x FG servo DC motor

1 x DC motor

Tape Speed:  4,8 cm/sec

Fast Forward and Rewind Time:  90 sec. With C-60 cassette

Playback Equalizer Time Constant

Normal/SF Tape :  3180 µs/ 120 µs

CrO₂ Tape :  3180 µs/ 70 µs

Semiconductors:  8 ICs; 88 Transistors;  71 Diodes

Input Terminals

Mic Jack (sensitivity/Impedance):  0,2 mV/600 Ω  - 10 k Ω

Input Jack (level/impedance) :  78 mV/100 k Ω

Output Terminals

Output Jack (level/Impedance) :  0 - 0,5 V / 2 - 7 k Ω

Matching Load Impedance :  50 k Ω  or more

Headphone Jack (level/impedance) :  0,6 mW/ 8 Ω  - 1 k Ω

DIN Socket

Min. Input Level :  0,1 mV /k Ω

Input Impedance :  11 k Ω

Output Level :  0 - 0,5 V

Output Impedance :  2 - 7 k Ω

Matching Load Impedance :  50 k Ω  or more

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

Power Consumption:  35 W

Dimensions (W x H x D):  420 x 211 x 321 mm (16-1/2" x 8-1/4" x 12-5/8")

Weight:  11 kg (24,2 lbs)

 

Nakamichi Dragon cassette deck

The ultimate innovation in cassette technology - precise, fully automatic playback head azimuth adjustment. Optimum reproduction quality in both forward and reverse playback modes.

In a slightly different genere than the luxurious 1000ZXL, the Dragon is undoubtedly the finest cassette deck available. It represents the culmination of Nakamichi's vast technical resources and experience, retaining the basic uncompromising Nakamichi standards of performance through use of such innovations as an Asymmetrical, Dual-Capstan Double-Direct-Drive Transport, a Discrete Three-Head configuration, very high quality record/playback amplifier circuitry and, of particular interest to perfectionists, our unique NAAC (Nakamichi Auto Azimuth Correction) for the ultimate in playback performance from both sides on any tape.

 

Proper azimuth alignment is one of the most important factors in achieving the best possible cassette reproduction quality. For this reason, several Nakamichi cassette decks offer either automatic or manual adjustment of record head azimuth. Ideally, however, playback head azimuth should be adjustable so that even tapes recorded on other decks will be reproduced with the recorded frequency response and sound quality fully intact. Commercially available music tape, tapes borrowed from a friend, tapes in which the shell has warped slightly (a common occurrence) - all actually require some degree of playback head azimuth alignment to provide the best possible reproduction quality. Further, inaccuracies in cassette shell symmetry result in completely different azimuth alignment requirements in forward and reverse on auto-revers decks, often causing a significant variation in sound quality. All these points and problems LED Nakamichi to the development of the world's first fully automatic playback head azimuth alignment system NAAC, and its incorporation into this fine deck.

The Dragon's unique double direct drive system employs two Nakamichi quartz PLL servo Super Linear Torque DD motors (one for each capstan) so that wow and flutter are essentially eliminated while maintaining perfect transport stability in both forward and reverse directions. Auto reverse operation has been made available only in the playback mode so that the superb performance of the Discrete Three-head System is not compromised. Of course, full provision is made for left and right channel bias and record/playback level adjustment. All the Dragon's performance features also mean that the built-in Dolby C-type noise reduction system operates under ideal conditions for the best performance. Likewise, heads, mechanism and amplifiers are all the best available, as are features such as the microcomputer-controlled, real-time mechanism control system proven in other Nakamichi decks. Convenience features include Auto Rec Pause, where the deck automatically enters the pause mode during recording if a blank interval of 30 seconds or longer is detected in the source, switchable MPX and subsonic filters, easy cueing, and a dual-speed auto fader function, for customized recording with professional fade-in/fade-out results.

 

Specifications

System Configuration:  4-track, 2-channel stereo

Heads:  3; erase head x 1; record head x 1; 4-track, 4-channel playback head x 1

Motors Transport :

 Two Quartz PLL DC brushless, slotless coreless Super Linear  Torque DD Motor for Capstan drive

 one DC Motor for reel drive

Auto Azimuth Correction :  DC Motor

Mechanism :  DC Motor

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

Wow and Flutter: less than 0,019% WTD RMS; less than ±0,04%  WTD Peak

Frequency Response:

20 Hz - 22,000 Hz ±3 dB (recording level -20 dB , ZX tape)

20 Hz - 21,000 Hz ±3 dB (recording level -20 dB , SX, EX II tape)

Signal-to-Noise Ratio:

Dolby C-Type NR On [70 µs, ZX tape] :  better than 72 dB (400 Hz, 3% T.H.D., IHF A-WTD RMS)

Dolby B-Type NR On [70 µs, ZX tape] :  better than 66 dB (400 Hz, 3% T.H.D., IHF A-WTD RMS)

Total Harmonic Distortion :  less than 0,8% (400 Hz , 0 dB, ZX tape)

Less than 1% (400 Hz, 0 dB, SX, EX II tape)

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

Separation:  better than 37 dB (1 kHz, 0 dB)

Crosstalk:  better than 60 dB (1 kHz, 0 dB)

Bias Frequency:  105 kHz

Input Line Sensitivity/Impedance :  50 mV/50 k Ω

Output Level/Impedance

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

Headphone :  45 mW (400 Hz, 0 dB, output level control at max.)/ 8 Ω

Black Box Series DC Output:  ±10 V, 125 mA max.

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

Power Consumption:  45 W max.

Dimensions (W x H x D):  450 x 135 x 300 mm (17-3/4" x 5-5/16" x 11-13/16"

Weight:  9,5 kg (21 lbs)

 

Jensen G-610B Triaxial loudspeaker

Triaxial - 15-inch 3-way Unitary Loudspeakers

 

The famous Jensen G-610B (and G-600) are genuine 3-way unitary loudspeakers, the only 15" speakers made with three electrically and acoustically independent L-F , M-F and H-F radiating and driving systems. These superb 15" speakers represents the ultimate in balance, efficiency, smoothness and tonal purity. They have no equal.

 

G-610B

Unquestionably the world's finest unitary loudspeaker. A precision combination of a 15" woofer with powerful 6-1/2 lb. Damping Factor-Alnico 5-magnet for bass notes to below 25 cycles; low 600 cycle crossover to a thru-bore compression mid-channel horn (whose final section is the entire woofer cone); and compression-driver super-tweeter for response from 4,000 to beyond 20,000 cps.

Heavy cast frame. Separate dual crossover network provided with individual M-F and H-F controls.

Impedance 16 ohms.

Power Rating 40 watts program, 80 watts peak.

Woofer Resonance 50 cps.

Weight: 46 lbs

 

 

Jensen G-600 Triax loudspeaker

 Triax - 15-inch 3-way Unitary Loudspeakers

 

The famous Jensen G-600 (and G-610B) are genuine 3-way unitary loudspeakers, the only 15" speakers made with three electrically and acoustically independent L-F , M-F and H-F radiating and driving systems. These superb 15" speakers represents the ultimate in balance, efficiency, smoothness and tonal purity. They have no equal.

 

G-600

True 3-way performance at moderate cost is yours with the G-600 Triax. Lows from below 30 cycles to 900 cycles are handled by the 15" edge-damped woofer with heavy duty 3-1/2 lb. Damping Factor-Alnico-5 magnet; compression-driver horn-loaded thru-bore midchannel for 900 - 4,000 cycle range, and compression horn phase-balanced super-tweeter for frequency extension beyond 20,000 cps.

Separate dual crossover network, M-F and H-F balance controls.

Impedance: 16 ohms

Power Rating: 35 watts program; 70 watts peak

Woofer Resonance:  35 cps

Weight:  33 lbs

 

Jensen 1200-XL loudspeakers

Contemporary Jensen 1200-XCL 7-speaker, 4-way decor-styled loudspeaker system

Jensen's new 1200-XL four-way loudspeaker systems blend the ultimate in high-fidelity sound reproduction with finest furniture styling.

Seven, speakers, uniquely arranged in a solid acoustic enclosure, provide sound magnificence for the most discriminating ear. Crisp, clear high notes. Pure, bold midrange. Full, rich bass notes. The entire sound spectrum - from 15 to 25,000 cycles - comes to life as never before. Controls for both mid-range and high-frequency permit exact musical balance for room conditions. This Contemporary model with pleated, textured grille fabric, is of open-grain oiled walnut. Mediterranean and Early American cabinets on following page are of select distressed pecan.

The 1200 XL series represents the finest loudspeaker systems Jensen has ever built.

 

Specifications

Components:

Four 15" FLEXAIR® woofers with a combined magnet weight ot 14,4 lbs; a compression-driver horn-loaded midrange; a compression-driver horn super-tweeter and a direct radiating Sono-Dome® ultra-tweeter

Frequency Range:  15 - 25,000 cps.

Crossover Frequencies:  500, 4000 and 10,000 cpe

Power Rating:  100 watts

Total Magnet Weight:  17-1/2 lbs

Impedance:  8 Ω

Controls:  Mid-frequency and high-frequency balance controls on rear of cabinet

Dimensions (W x H x D):  40" x 30-1/2" x 22-3/4"

Shipping Weight:  243 lbs

 

1200-XLM Mediterranean

The cabinet - select pecan with textured grille fabric high-lighted by screened patterns. Reflects the warmth of Mediterranean styling.

Cabinet dimensions: 31-1/4" Height; 40" Width and 22-3/4 Depth

Shipping Weight:  245 lbs

 

1200-XLE Early American

The cabinet - distressed pecan with textured grille fabric. Solid pecan spindles recreate the Traditional look.

Cabinet dimensions: 31-1/4" Height; 40" Width and 22-3/4 Depth

Shipping Weight:  240 lbs