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The ASA-4 from FSR is a device that sums the audio from its 4 line-level inputs to its single line-level output. Each input features a 3 conductor terminal for both balanced and unbalanced signals and a trim pot to adjusting the level. The output features a 3 conductor terminal, and it also has an integrated transformer coupling that eliminates ground loop issues and makes longer cable runs possible.
Several different sound sources can be inputted into the ASA-4. It accepts both professional and consumer line-level audio. You can attach the outputs of a professional mixer, and the outputs of a consumer CD or MP3 player, and the ASA-4 is equipped to pass their audio to its output. It's a great way to have several different components of your sound system share the input of a power amplifier/speaker system. The ASA-4 is ideal for permanent installations in bars, restaurants, hospitals, schools, and businesses.
Active mixing, no loading of inputs
Four output trim controls (0 to +20 dB)
Screw terminal inputs and output
Transformer coupled output can drive long cable runs
Rack mountable (1 rack unit high) mounting kit supplied
In the Box
FSR ASA-4 - 4 Input Audio Summer
Rack Mount Kit
3 Year Warranty
Table of Contents
4 x Terminal Block 3 Conductor Inputs (Balanced/Unbalanced)
20k ohms DC coupled balanced, 10k ohm DC coupled unbalanced
1 x Terminal Block 3 Conductor Output (Balanced/Unbalanced, Transformer Coupled)
600 ohm suitable for long cable drives
Max Input/Output Gain
Input Max Level: +18 dBm (balanced or unbalanced) at stated % THD + N
Output Drive: >+18 dBm, (balanced or unbalanced) at stated % THD + N