BAL2S - Blender Bogen - Free user manual and instructions

Product Type	Balanced Input Module for Audio Mixers
Brand	Bogen
Model	BAL2S
Input Channels	2 (Channel A, Channel B)
Input Type	Balanced, high-impedance
Channel Gain	Selectable per channel: 0 dB (X1) or 18 dB (X8)
Ducking	Variable signal ducking when muted; adjustable from no reduction to ~50 dB muting
Fade Back from Mute	Yes, gradual return from mute level
Muting	Can be set to mute by higher priority modules (lowest priority) or no mute
Output	Dedicated audio bus outputs (Bus A, Bus B)
Installation	Slide-in module, secured with two screws; power off required
Wiring	Supports balanced (3-wire) and unbalanced (2-wire) connections
Compatibility	Designed for Bogen mixer systems
Dimensions	Standard module size (exact dimensions not specified)
Weight	Lightweight (exact weight not specified)
Power Supply	Powered by host unit
Maintenance	No special maintenance required; keep clean and dry
Safety	Turn off power before installation; ensure proper wiring

Frequently Asked Questions - BAL2S Bogen

What is the BAL2S module used for?

The BAL2S is a balanced input module for Bogen audio mixers, providing two high-impedance balanced inputs with selectable gain and ducking control.

How do I install the BAL2S module?

Turn off all power to the unit. Make necessary jumper selections. Position the module right-side up in front of the bay, slide it onto the card guide rails ensuring top and bottom guides are engaged, then push until the faceplate contacts the chassis. Secure with two screws.

How do I wire a balanced source to the BAL2S?

Connect the shield wire of the source to the 'G' terminal. Connect the '+' signal lead to the '+' terminal and the remaining lead to the '-' terminal. If polarity is important, you may need to reverse connections to correct phase issues.

How do I wire an unbalanced source?

Short the input minus '-' terminal to the ground 'G' terminal. Connect the source shield to 'G' and the source hot lead to the input plus '+' terminal.

What is the function of the Ducking control?

The Ducking control adjusts the level of the output signal when the module has been requested to mute its output. It ranges from no reduction to full muting (~50 dB).

How do I set the channel gain?

Each channel has a switch to select gain: 0 dB (X1) or 18 dB (X8). Set the switches per channel before installing the module.

How does muting work on the BAL2S?

The module can be set to mute when a higher priority module requests, making it the lowest priority module. Alternatively, it can be set to never mute.

Can I use the BAL2S with other mixer modules?

Yes, the BAL2S is designed for use in Bogen mixer systems and can be combined with other modules like priority muting modules.

What does the fade back from mute feature do?

After being muted, the signal gradually fades back to its normal level, preventing abrupt volume changes.

Is there any maintenance required?

No specific maintenance is needed. Keep the module clean and dry. Ensure connections are secure. Avoid exposure to moisture.

USER MANUAL BAL2S Bogen

BAL2S

Balanced Input Module

Features

• Balanced high-impedance inputs
- Selectable channel gain (0 dB or 18 dB)
- Variable signal ducking when muted
- Fade back from mute level
- Can be muted from higher priority modules

Module Installation

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

WARNING:

Turn off power to unit and make all jumper selections before installing module in unit.

Input Wiring

Balanced Connection

Use this wiring when the source equipment supplies a balanced, 3-wire output signal.

For either input, connect the shield wire of the source signal to the “G” terminal of the input. If the “+” signal lead of the source can be identified, connect it to the plus “+” terminal of the input. If the source lead polarity cannot be identified, connect either of the hot leads to the plus “+” terminal. Connect the remaining lead to the minus “-” terminal of the input.

Note: If polarity of the output signal versus the input signal is important, then it may be necessary to reverse input lead connections to correct the “out-of-phase” signal problem.

Unbalanced Connection

Use this wiring when the source equipment supplies an unbalanced, 2-wire output signal.

For either input, short the input minus “-” terminals to the input’s ground “G” terminal. Apply the source’s shield to the “G” terminal and the source’s hot lead to the input’s plus “+” terminal.

Features

Ducking (Duck)

Controls the level of the output signal from the module when it has been requested to mute its output. The range is adjustable from no reduction in level to full ( 50 dB) muting of the output signal.

Balanced Inputs

Balanced, 3-wire input, each input dedicated to each audio bus. See input wiring section for information on balanced and unbalanced connections.

Muting

This module can be set so that it is muted by higher priority modules. When that is the case, it is always the lowest priority module. It can also be set so that it never mutes.

Channel Gain

This module provides for channel gains of either 0 dB (X1) of gain or 18 dB (X8) of gain. Separate switches service each channel independently.

graph TD
    A["CHANNEL GAIN"] --> B["0 dB (X1) Gain Position"]
    A --> C["18 dB (X8) Gain Position"]
    D["MUTING"] --> E["Mute J1"]
    D --> F["No Mute J1"]
    G["CHANNEL A"] --> H["CHANNEL B"]
    I["MUTE J1"] --> J["NO MUTE"]

Block Diagram

graph LR
    subgraph_INPUT_A["INPUT A"]
        A1["+ G -"] --> B1["BAL INPUT"]
        B1 --> C1["GAIN X1 X8"]
        C1 --> D1["DUCKING"]
        D1 --> E1["→ BUS A"]
    end
    subgraph_INPUT_B["INPUT B"]
        A2["+ G -"] --> B2["BAL INPUT"]
        B2 --> C2["X1 X8"]
        C2 --> D2["DUCKING"]
        D2 --> E2["→ BUS B"]
        E2 --> F["MUTE LOW"]
    end