3-MOTOR/3-HEAD PROFESSIONAL CASSETTE DECK-
PLL-Servo Dual-Capstan Transport, Interchangeable Bias/EQ Cards, Optional dbx Interface, LSI Function Controls
TEAC
TEAC C-1: A PRODUCT OF PRECISION TECHNOLOGY
Designed for exacting professional applications, the C-1 offers performance, features and flexibility never before available in a cassette system. Years of research and accumulated technology available in a cassette system. Years of research and accumulated technology from a number of associated fields, including precision instrumentation and computer-based data recording, have gone into the development of this revolutionary machine. In turn, you're assured of many years of
3-Heads 3-Stage Bias & EQ Selectors 3-Moors Mic/Nic -20 dB/Line Selector Phase-Locked Loop Servo Capstam Motor Output Level Control Dual-Capstan Closed-Loop Transport Gear-Coupled Input Level Controls Dual-Capstan Closed-Loop Transport Peak Program Meters 15000000000000000000000000000000000000
SPECIFICATIONS
|
1 Phase-Locked Loop DC-Servo Capstan Motor,
2 DC Coreless Reel Motors Erase Record and Playback |
|---|
| 2 DC Coreless Reel Motors Frase Record and Playback |
| Frase Record and Playback |
| Liase, necold and Liayback |
| Compact Cassette C-60 and C-90 |
| 1-7/8 ips (±0.5%) |
| 0.04% (NAB Weighted) |
| 20-20,000 Hz (±3 dB: 31.5-18,000 Hz) |
| for CrO 2 /FeCr tape |
| 20—18,000 Hz (±3 dB: 31.5—16,000 Hz) |
| for Hi-Fi tape |
| Signal-to-Noise Ratio | 60 dB (CrO 2 tape); can be improved |
|---|---|
| (overall) | with Dolby NR by up to 5 dB/1 kHz, |
| 10 dB/over 5 kHz. | |
| Rewind/Fast Forward Time | 70 seconds for C-60 |
| Inputs | 2 Line: 60 mV/50 k ohms |
| 8 | 2 Mic: 0.25 mV (-72 dB) 600 ohms or more |
| Outputs | 2 Line: 0.3 V/50 k ohms or more |
| 1 Stereo Headphone Jack: 8 ohms | |
| Power Requirement | 100/117/220/240 V AC, 50/60 Hz, 35 W |
| Dimensions (W x H x D) | 482 x 161 x 353 mm |
| [18-7/8'' x 6-1/4'' x 13-13/16''] | |
| Weight | 14.5 kg [32 lbs.] net |
ents may result in features or specifications without notice
** " dbx " is a trademark of dbx Incorporated.
Useful Accessories
For consistently professional performance from your quality tape deck, keep the heads and transport clean—both physically and magnetically-with the TZ-261 cleaner kit
and E-3 head demagnetizer
Adding the optional MX-8 Audio Mixer to your C-1 permits even greater flexibility and professional recording capability. The MX-8 provides four independent mic/line inputs with individual level controls and switchable low cut filters (100 Hz/200 Hz). Pan pots for each channel let you place individual sonic images at any point within the stereo sound field, and a master level control precisely adjusts the overall level of the MX-8 stereo outputs.
TZ-261
Where Art and Technology Meet
TEAC CORPORATION: 3-7-3. Naka-cho. Musashino, Tokyo, Japan Phone: (0422) 53-1111 TEAC CORPORATION OF AMERICA: 7733 Telegraph Road, Montebello, California 90640 Phone: (213) 726-0303 TEAC AUSTRALIA PTY. LTD.: 165 Gladstone Street, South Melbourne, Victoria 3205, Australia Phone: 699-6000
If you're familiar with high-quality openreel tape recording equipment, then you know that the three-motor tape transport drive system provides the smoothest, most reliable operation available. And you probably also know that cassette recorders have simply not been able to offer the same level of performance. The C-1 changes all that with a full three-motor transport system incorporating a precision PLL capstan motor and coreless-rotor DC reel motors, providing performance and versatility exceeding many open-reel units.
Dual-Capstan Closed-Loop
The C-1's capstan motor drives two independent capstans via a main drive belt and a coupling belt for perfect rotational accuracy. Since one capstan and pinch roller is located before, and one after, the head assembly, the tape travelling over the heads is completely isolated from the supply and take-up reels, and is maintained at the exact tension for perfect tape-to-head contact.
To avoid problems of tape slippage or uneven drive, the pinch rollers incorporate a special self-adjusting design, assuring even pressure over the entire width of the tape.
PLL Precision
Precision tape speed accuracy is maintained by a phase-locked loop servo system. A reference signal, generated by a fundamental oscillator, is continuously compared to a frequency generated by, and proportional to, the speed of the capstan motor. If even the slightest difference in phase between the two signals is detected, the error is instantly corrected by the servo circuitry.
This system, combined with superior transport design, provides the outstanding low wow and flutter figure of 0.04% (NAB weighted) in the C-1.
Diecast Transport Frame
One of the major faults with many transport assemblies is the basic frame it self. If there is any slack, movement or warpage in the frame, performance suffers severely. Transport operation can become erratic and the heads will slip out of alignment very
The critical sections of the C-1 transport frame, however, are diecast in solid aluminum This means mint-condition performance for the life of the unit, with less adjustments and maintenance.
The C-1 offers a true three-head record/reproduce system. The record and playback heads, individually engineered for optimum characteristics, are incorporated in a single housing. This means that relative alignment will never vary, and the problem of phase differences between heads is eliminated, thanks to their proximity.
The playback head, a unique "Deltaic" design incorporating both magnetic and non-magnetic ferrite materials, assures minimum feedthrough from the record head and eliminates low frequency contour effects.
Real-time monitoring is another big plus with the three-head system, so you know exactly how your recordings are going to sound—as you are recording.
SI Function Control
Advanced digital circuitry assures the smoothest positive operation of all transport functions. Direct switching between functions is possible (e.g. fast forward to rewind) with absolutely no danger of damaging the tape or mechanism. This system also permits use of the optional RC-90 remote control unit. Like the ondeck controls, the RC-90 gives you featherlight, positive control over all functions up to 16 feet away from the deck.
Electromagnetic Reel Braking
For the first time in a cassette deck, the C-1 incorporates the same kind of electromagnetic reel braking found in professional open-reel units. Rather than the usual all-mechanical systems, braking is assisted by applying a reverse voltage to the reel motors. This reduces the possibility of tape damage due to sudden "jerking" stops, and makes operation quieter and smoother.
Servo-Controlled Fast Wind
To further eliminate the possibility of tape tangling, stretching or breakage, the C-1 is equipped with a servo-controlled fast wind system. During fast forward or rewind, the supply reel motor acts as a speed detector/servo to precisely control the wind rate. This unique feature assures perfectly even winding.
Two-Step Pinch Rollers
In the Pause mode, both left and right pinch rollers retract from the capstans slightly while the tape remains in contact with the heads. This permits instantaneous start from the Pause mode, eliminating "thumps" and clicks during operation.
Pitch Control
A rare feature on a cassette deck, this C-1 control lets you "tune" recorded material to a desired pitch (within the control range). This is particularly useful for live recording or rehearsals where it is necessary to match the pitch of the recorded sound to that of the live sound or instrument.
Modular Design
As with all professional units, the C-1's internal circuitry is constructed in easily-replaceable modules. In addition to simplifying maintenance and providing greater flexibility and interchangeability, this type of design permits tighter quality control during manufacture. The result is top performance from every unit. The C-1's 3-dimensional circuit layout also contributes to its slim, compact styling.
State-of-the-Art Electronics
Direct-coupled circuitry in the C-1 provides an unimpeded signal path for maximum waveform fidelity. The Play EQ amplifiers feature carefully selected low-noise components in a differential input/push-pull output configuration for extremely wide available dynamic range. This takes full advantage of the optional dbx noise reduction interface unit.
The line-out amplifiers feature ultra-low distortion thanks to a differential input using matched FETs with current mirro circuitry.
For best live recording results, the microphone preamplifiers are specially designed to provide ultra-low noise and wide dynamic range. Microphone inputs feature switchable -20 dB padding.
Semiconductor switching is employed in the Dolby*, record, monitor and playback sections to minimize audio-carrying leads and provide the shortest possible signal path, and the built-in Dolby circuitry incorporates high-precision resistors and capacitors, plus selected FETs, for ultra-low distortion Dolby processing.
The bias oscillator, a critical part of any magnetic recording system, is powered by a highly-regulated supply for extremely stable operation. Fluctuating environmental conditions such as temperature, humidity, etc., have virtually no effect on bias frequency or level.
The list goes on. In fact, each and every part of the C-1 incorporates the most advanced technology to help you make superior recordings easier, and with a minimum of fuss.
Cross-Geared Level Controls
The left and right channel level controls are coupled by a gear and friction clutch system. First, set the desired relative balance between channels, then both can be varied simultaneously by turning either control independently. A real time- and effort-saving feature.
Three-Position Monitor Selector
The C-1 monitor switch has three positions; Source, Cal and Output. In the Source position, input signals are monitored directly. The Cal position provides actual tape-level readout independent of the output level control, while in the Output position, the meters display the level as determined by the output level control setting. This is helpful when using tapes of varying sensitivity.
Fast-Tracking Peak Meters
The professional peak meters employed in the C-1 have an ultra-fast 10-mS rise time over the entire audio spectrum. They accurately display peak levels from as low as -40 dB up to +5 dB over Dolby level for distortion-free recording.
Interchangeable Bias/EQ Card
In addition to the wide range of settings available with the three-stage bias and equalization switches, the C-1 comes equipped with two plug-in Bias/EQ cards for perfect matching with
which are directly replaceable on the front panel, providing a range of
cards. or optionally-available cards,
particular types of tape by controls
balt tab
formulations. The Bias
located under the card module front cover. When re-calibrating cards, the TO-8 test-tone oscillator makes the job quick and easy.
Convenient Cassette Handling
The C-1 cassette compartment is fully lighted for optimum visibility, and features a flywheel-damped eject system for longer cassette and mechanism life. The cassette door is easily removable, providing greater access to heads and mechanism for cleaning and demagnetizing. To assure perfect tension and tape-tohead contact, a special system automatically takes up slack in the tape
automatically takes up slack in the tape when the cassette is inserted. This also contributes to longer cassette life.
Optional dbx Interface
The electronics, rack-mounting dimensions and styling of the C-1 are a perfect match for the optional RX-8 dbx noise reduction interface. The RX-8 can almost double available dynamic
Dolby noise reduction system or the dbx interface, according to the requirements of the recording.
Other features
- * Optional matching 4-in/2-out mixer (MX-8) provides four independent line or microphone (0/-20 dB) inputs with pan pots and switchable low filters for each channel
- * Memory stop/auto-rewind and repeat make operation quick and convenient
- * Folding angle stand sets the unit at perfect angle for desk- or table-top use
- * Timer switch lets you make timeractivated recordings
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