Teac V-8000S - TEAC V-8000 S Specifications and Dolby System; Detailed Technical Specifications; Dolby S-Type Recording System Explained

SPECIFICATIONS
a
Track System: 4-Track, 2-Channel Stereo
Heads: 3: 1 Erase, 1 Record and 1 Playback
(combination)
Type of Tape: Cassette tape C-60 and C-90
(Philips type)
Tape Speed: 4.8 crrvsec. (1-7/8 ips)
Motors: 4
1 brushless quartz locked PLL servo
DC motor (for capstan drive)
1 DC motor (for reel drive)
1 DC motor (for mechanism drive)
1 DC motor (for power loading)
Wow and Flutter (WRMS)
0.022 %
Frequency Response (Overall): -20 dB
15 - 21,000 Hz +3 dB Metal Tape
15 - 20,000 Hz +3 dB CrOz Tape
15 - 18,000 Hz +3 dB Normal Tape
Signal-to-Noise Ratio (Overall)
60 dB (NR OFF 3 % THD Level,
Weighted)
70 dB (Dolby B In, over 5 kHz),
80 dB (Dolby C In, over 1 kHz)
84 dB (Dolby $ In, over 1 kHz)
Fast Winding Time: Approximetely 85
seconds for C-60
Inputs: Line; 60 mV, 50k ohms
CD Direct; 110 mV, 50k ohms
Outputs: Line; 0.44 V for load impedance of
‘50k ohms or more
Headphones; 2 mW (max.) 8 ohms.
Power Requirements: 100/120/230/240 V
AG, 50/60 Hz (General export
models)
120 V AG, 60 Hz (U.S.A./Canada)
230 V AG, 50 Hz (Europe)
240 V AC, 50 Hz (U.K./Australia)
Power Consumption: 23 W
DOLBY S-TYPE RECORDING SYSTEM
Dimensions (W x H x D)
471 x 149 x 355 mm (including side
panels)
(18-9/16" x 5-7/8" x14’)
Weight: 10.5 kg (23.2 Ibs.) (including side
panels)
Standard Accessories:
RC-394, Batteries (SUM-3, AA’,
"R6" type) x 2, Input-output
connectionords, Side panels
(mounted)
© Specifications were determined using metal
tape except where noted.
eImprovements may result in specifications
or features changing without notice.
«Photos and illustrations may differ slightly
from production models,
The Dolby S-type System is a newly
developed recording system, and its features
include the following:
* Dolby S-type is based on the same
operating principles as Dolby SR, the
professional Spectrum Recording system,
and enhances the quality of audio
recordings.
* The system boosts low-level signals during
recording and cuts them during playback,
providing noise reduction of 10 dB at low
frequencies and a 24 dB at the higher
frequencies.
*To prevent side effects such as noise
modulation, Dolby S-type operates with
what is called the principle of least
treatment and applies constant gain
wherever there are no high-level signals,
even if such signals exist somewhere else
inside the spectrum.
A fixed band NR at low frequencies and a
combination of fixed and sliding band NR at
high frequencies operate to complement
each other in a technique known as action
substitution and gives less overall noise
modulation.
+ Antisaturation provides a wide headroom
both at low and high frequencies and less
distortion.
High Level Stage Low Level Stage
| High Freq High Freq. |
> Sliding + Siding
Bend | Band
i a3 Mo1-3
ra es 2
High Freq, | High Freq, |
Fixed | Fixed |
Band Band
1
Low Freq.
Fixed
Band
Modulator
Control
Input ye
vere
+
: Low Freq High Level
oe Anti Lt
Signal | Skewing | | saturation | Siza0 aad
Low Level] ¢
ante |—>{ +) 0)
saturation |S Signal
jor and Stage Adder lana
Sie
sia,
S-TYPE ENCODER BLOCK DIAGRAM
PRINTED IN JAPAN 0891U2-M-0561A,