Tascam AV-452 Stereo Amplifier User Manual


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The TASCAM AV-452 is a 3U rack-mountable combination 4-channel mic mixer, A/V switcher,
and dual-channel 100 watt power amplifier. Each mic channel is equipped with a 60mm fader,
gain, mute, and 3-band EQ controls. The A/V channel includes simple
video switching and
provides inputs for (2) audio sources and (3) video sources. The A/V channel is equipped with a 3-
band EQ, Dim key (20db attenuation), 60mm fader, record monitor control indicator, (5)source
selector keys, and (2) video input selector keys (used to select the input source for external
projector). The A/V-452 provides a single video out feed. The A/V-452 is standards independent
and accepts NTSC, PAL, or SECAM with no configuration needed.
The main control section includes master room volume control, aux inputs (one-composite video
input and/or left and right audio signal inputs), aux selector switch, cascade key, intercom key,
amp A and B keys, headphone jack w/level control, and RGB 2 input jack (passed thru to the rear
panel connector).
Rear panel video connectors include RGB2 thru, DVD in (s-video & composite), VCR In and
Out(s-video & composite), and Monitor out (s-video & composite). A/V audio rear panel
connectors include unbalanced DVD audio in, unbalanced VCR I/O, unbalanced CD-RW I/O, and
unbalanced Cassette I/O. Microphone connections via XLR or barrier strip. The unit provides +48
Volt Phantom power switch for all four-mic channels and a (TRS) group mic insert jack.
The master audio connections include a cascade input (balanced XLR), line output (balanced
XLR), meeting room out (unbalanced RCA), speaker output A and B (1/4 jack), EMG in and GND
(barrier strip), Intercom in/CV in (barrier strip). Trimmer pots are provided on the rear panel for
AV ducker ratio and Threshold controls and Level and Gate Threshold control. A line output
mode switch on the rear panel allows the line out to act as two mono line sources.
The RC-452 universal learning remote (included) controls the AV-452 and can learn commands
for projector power and transport commands for up to four-components. The AV-452 can also
learn IR commands, to integrate projector/monitor switching with the AV-452 internal switching.
External Control Connectors include RS-232 (9 pin D-sub) and Relay Control (37-pin D-sub). A
serial address selector and a set of 6 customize dip switches are also located on the rear panel.
Switch Function Up position Down position
1 Learn IR codes(LEARN IR) ON OFF
2 Cascade mode (CASCADE) Exclusive (EXC) Summed (SUM)
3
Speaker outputs (SPK OUT) Mono (MON) Stereo (ST)
4 Microphone high-pass filter(MIC HPF) ON OFF
5 Intercom gate function (INT GATE) ON OFF
6 AV ducking facility (AV DUCKER) ON OFF
CONSULTANT
’
S AND SYSTEM DESIGN
SPECIFICATIONS
CUSTOMIZATION AND SETTNGS (DIP SWITCHES)
TASCAM 7733 Telegraph Road Montebello, CA 90640 (323) 726-0303 http://www.tascamcontractor.com
All features and specifications are subject to change without notice. Contact your local TASCAM representative for the latest information.
TASCAM AV-452
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