Product Overview

The Bogen MAX1R Mono Aux Input Module is a versatile audio processing unit designed to integrate auxiliary audio sources into a main system. It offers advanced features for signal management, including gain control, equalization, gating, and priority muting.

Key Features:

• Gain/Trim control
• Bass and treble equalization
• Audio Gating with threshold and duration adjustments
• Variable signal ducking when muted or gated
• Fade back from mute level
• 4 levels of available priority
• Can be muted from higher priority modules
• Can mute lower priority modules

Block Diagram Description

The block diagram illustrates the signal flow and control logic of the MAX1R module. An audio INPUT signal enters the module. It passes through controls for GAIN, DUCKING, BASS/TREBLE, and GATING. A GATE CONTROL section manages the gating function, with adjustable PRIORITY LEVEL settings (MUTE HIGH, MUTE MED, MUTE LOW, MUTE IN). The module also features a GATE ENABLE/DISABLE function. The processed signal can be assigned to BUS A, BUS B, or both via BUS ASSIGNMENT.

The diagram also shows controls for GATING THRESHOLD and DURATION, and a visual representation of priority levels with associated jumpers (J6, J7, J8).

Module Installation

Follow these steps to install the MAX1R module:

1. Turn off all power to the unit.
2. Make all necessary jumper selections.
3. Position the module in front of the desired module bay opening, ensuring it is right-side up.
4. Slide the module onto the card guide rails, making sure both top and bottom guides are engaged.
5. Push the module into the bay until the faceplate contacts the unit's chassis.
6. Use the two included screws to secure the module to the unit.

⚠️ WARNING: Turn off power to the unit and make all jumper selections before installing the module.

Jumper Selections

Priority Level

The module supports 4 priority levels. Priority 1 is the highest and is never muted. Higher priority levels mute lower ones. The specific number of priority levels available may depend on the amplifier the module is used in.

Priority Levels:

• Priority 1: Highest, never muted.
• Priority 2: Muted by Priority 1; mutes Priority 3 and 4.
• Priority 3: Muted by Priority 1 or 2; mutes Priority 4.
• Priority 4: Muted by all higher priorities.

Jumper settings for Priority Level are typically represented by J6, J7, J8, with different combinations corresponding to levels 1 through 4.

Gating

The Gating function, which turns off the module's output when insufficient audio is present at the input, can be disabled. However, the detection of audio for muting lower priority modules remains active regardless of this jumper setting.

The GATING jumper (J11) can be set to Enabled or Disabled.

Bus Assignment

This module can send its mono signal to the main unit's A bus, B bus, or both buses.

The BUS ASSIGNMENT jumper (J5) allows selection between A, B, Both, or Mono (presumably sending to a single bus or internal processing).

Control Descriptions

Gate - Threshold (Thresh)

Controls the minimum input signal level required to activate the module's output and send a mute signal to the main unit's buses. Rotating clockwise increases the necessary signal level.

Ducking (Duck)

Adjusts the level reduction of the output signal when the module is requested to mute or gate. The range is from no reduction to full muting of the output signal.

Gate - Duration (Dur)

Determines how long the output and mute signal remain active after the input signal falls below the set threshold. Controls the time the mute signal is applied to the main unit's buses.

Bass & Treble (Treb & Bass)

Provides separate controls for cutting or boosting bass and treble frequencies. Bass control affects frequencies below 100 Hz, and Treble affects frequencies above 8 kHz. Clockwise rotation boosts, counterclockwise cuts. The center position has no effect.

Gain

Controls the input signal level applied to the internal signal buses of the main unit. This allows balancing input levels from various devices for optimal main unit control settings.

Connections

The module uses a standard RCA connector for its input. These inputs are quasi-balanced, which helps reduce the chance of ground loops while remaining compatible with unbalanced signal sources.

Warranty Information

The Bogen MAX1R Mono Aux Input Module is warranted against defects in material and workmanship for three (3) years from the date of sale to the original purchaser. Bogen will repair or replace, at its option, any defective part during the warranty period, provided the product is shipped insured and prepaid to the Bogen Factory Service Department at 50 Spring Street, Ramsey, NJ 07446, USA. Repaired or replacement products will be returned freight prepaid.

This warranty does not cover products subjected to abuse, misuse, improper storage, neglect, accident, improper installation, modification, or alteration. It also excludes products where the serial number or date code has been removed or defaced.

This limited warranty is Bogen's sole and exclusive warranty, and the purchaser's sole and exclusive remedy. Bogen disclaims all other warranties, express or implied, including implied warranties of merchantability or fitness for a particular purpose, to the maximum extent allowed by law.

Bogen's liability is limited to the product's price and does not extend to special, incidental, or consequential damages (including loss of profits or data). Some states may not allow these limitations.

Out-of-warranty repairs are also available from the Bogen Factory Service Department. Such repairs are warranted for 90 days for parts and labor. Shipping charges for out-of-warranty service are the owner's responsibility. A Return Authorization number is required for all returns. Please include a description of the failure for efficient service.

Document Date: 12/2008

Specifications and Copyright

Model Number: MAX1R

Part Number: 54-2053-01C 0911

© 2005 Bogen Communications, Inc.

Specifications are subject to change without notice.