APPLICATIONS AND FEATURES
The AMC model AV81HTc-DD was
designed to meet professional quality standards for Dolby Pro-Logic,
Dolby Digital decoding and video switching.
Dolby Pro-Logic and Dolby Digital
decoding are accomplished by the Zoran ZR38500 Digital Signal
Processor. This device is acclaimed worldwide as having the finest
sonic quality of any currently available device for decoding Dolby
Pro-Logic and Dolby Digital motion picture sound tracks.
With the microphone supplied, a
simple calibration procedure can be made that sets the balance of
all six channels to an accuracy of less than +/-1dB.
Two Digital Inputs, eight Stereo
Audio Inputs and four Composite Video Inputs.
Six Audio Outputs and one Video
Output.
Six Output Level preset controls
precisely set the balance of each of the six output channels.
Switchable sub-woofer crossover
filter.
Center channel mode control that
provides Normal, Phantom and Wide Band center channel operation.
Center channel Time Alignment
control that provides 0,1,2,3,4 and 5 ms delay of the center channel
signal relative to Left and Right Channels.
Operating modes include: Stereo,
Dolby Pro-Logic, PCM, Dolby Digital and Dynamic Range Compression.
Remote Operation of Volume, Source
Selection, Modes, Noise Sequence and Power ON/OFF.
Control of surround channel delays
of 15,20,25 and 30 ms.
Built-in calibration meter.
SPECIFICATIONS
Audio Inputs (CD, Tuner, Tape 1, Tape 2,
VCR1, VCR2, LD&Video) and Outputs (Stereo Mode)
|
Input impedance
|
R=47K ohm, C=l00 pF
|
|
THD 20 Hz-20 KHz and SMPTE IMD
|
<0.01% at 3Vrms
|
|
Inputs Sensitivity for 1V output
|
150mV
|
|
Input Overload
|
3.5Vrms
|
|
Signal to Noise Ratio
(Gain=1)
|
95dB "A" wtd ref. 1V
|
|
Frequency Response
|
20 Hz to 20 KHz +/- 0.5 dB
|
|
Output Impedance
|
75 ohm
|
|
Maximum output level
|
12 Vrms
|
|
Subwoofer cross-over frequency
|
80Hz
|
|
Tone control
|
|
100Hz
|
9+/-0.5dB
|
|
10KHz
|
8.5+/-0.5dB
|
Video Inputs (VCR1, VCR2, LD & Video) and
Outputs
|
Input Impedance
|
75 ohm
|
|
Input Level of Peak White
|
1V peak
|
|
Output Impedance
|
75 ohm
|
|
Gain (From Video Inputs to Output)
|
Unity with 75 ohm term
|
|
Frequency Response
|
|
DC~6MHz
|
+/- 1 dB
|
|
DC~18MHz
|
+/- 6dB
|
|
Maximum Input Level
|
+/- 2V peak
|
Dolby Digital Mode
|
Output level @ 1 KHz/0 dBFS
|
Variable, max. 9V at clipping
|
|
THD+N @ 0 dBFS/2V output
|
|
Main channels
|
0.006% at 1KHz
|
|
Surround channels
|
0.006% at 1KHz
|
|
Center channel
|
0.006% at 1KHz
|
|
LFE
|
0.006% at 30Hz
|
|
Channel separation at 1 KHz/2V output
|
>80dB
|
|
Signal to noise ratio @ -20 dBFS
|
>70dB
|
Others
|
Dimensions (WxHxD)
|
430x82x300 mm
|
|
Net weight
|
5.0Kgs. (11 lbs.)
|
|
Power consumption
|
30w
|
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby
Laboratories. Confidential Unpublished Works. (C) 1992-1997 Dolby
Laboratories, Inc. All rights reserved.
Weltronics Corp. reserved the right to improve its
products at any time. Therefore, specifications are subject to change
without any notice.
LT-AV81HTc-DD
