Tascam AV-452 User Manual

AV-452

RS-232

Technical Documentation

The AV-452 is a combination mic
mixer, A/V switcher, and power
amplifier. The control surface is
elegant and intuitive. Four
microphone inputs (with phantom
power) offer plenty possibilities
for multiple presenters and/or
speaking positions. Two audio
and three audio/visual
components can be connected to

the A/V channel, with simple switching control. A 3-band EQ is available on each channel to enhance the individual

sounds as needed.

source is selected on the AV-452, the IR code for that input can be sent to the TV or projector, thereby ensuring
the proper video source is being shown. The AV-452 can integrate with building alarm systems and accept
constant voltage speaker signals. Plus, there are two alternatives for creating external control f unctionality:
buttons and LEDs can be attached to the AV-452's Relay Control port, or the AV-452's serial control port can
link with an RS-232 control system.

MSRP $899.00

Audio/Video Capabilities:

4-Microphone Channels w/ Phantom Power
A/V Channel Strip w/ Video Switching

Inputs for (2) Audio Sources and (3) Audi o/Video Sources
Record Monitor Control for Dubbing Between Sources

Motorized Room Volume Control
Built-in Digital Power Amp

100W/side @ 8 Ohms, operates from 4-16 Ohms

Headphone Output w/ Level Control

Control Features:

Universal Learning Remote Included

Buttons for AV-452, Projector Power and A/V Components

The AV-452 main unit can learn IR commands for a projector or TV. Whenever an A/V

Built-In Projector Switching Control Capability

AV-452 Unit Learns IR Codes to be Tra nsmitted to Projector

Bi-Directional Control Integration Capability

Relay Control Port for Direct Connection of Buttons and LEDs
Serial Control Port for RS-232/422/485 Control Protoc ols

Additional Features:

Integrates w/ Building Communication Systems

12V/24V/70V Constant Voltage Input w/ Mute and Gate
EMG Input Mutes AV-452 When Emergency Alarm is Detected

Room for Growth & Enhanced Operation

Balanced Line Output for Using External Amplifiers
Balanced Cascade Input for Adding Sub-mixers or Linking Rooms
Mic Group Insert for Dynamic Processing or Splitting signals
Meeting Record Output for Documenting M eeting Minutes

TASCAM 7733 Telegraph Road Montebello, CA 90640 [phone] http://www.tascamcontractor.com

All features and specifications are subject to change without notice. Contact your local TASCAM representative for the latest information.

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TASCAM AV-452

’

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 3­band 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
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

Speaker outputs (SPK OUT) Mono (MON) Stereo (ST)

TASCAM 7733 Telegraph Road Montebello, CA 90640 [phone] 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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