A 2055A • Balanced Mic / Line Input Pre-Amp & Mixer
The A 4906 is a versatile unit which accepts either a line level signal, balanced microphone signal or 100V input signal. The output signal is a line level signal suitable for feeding into an amplifier.
Features two line inputs and one mic input, each with its own level control. The mic input can be configured for either balanced or unbalanced operation. All inputs are mixed to a single line level output. It can be powered from either a single rail power supply (15V to 30V dc), or a dual rail power supply (±12V to ±30V dc). PCB dimensions 100 x 57 mm.
Specifications:
Microphone gain: 60 dB
Mic input sensitivity: 0.7 mV rms
S/N ratio: 10 mV input -74dB
Frequency resp.: 150Hz to 20kHz , -3dB
Line. gain: 14dB
Line. input sensitivity: 200mV
Line. S/N ratio: 500mV input -77dB
Line. freq. resp.: 30Hz to 20kHz, -3dB
Developed, designed & assembled in Australia.
Since 1974 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 50 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.