The Aphex 120B is a high performance audio distribution amplifier with a single high impedance input and four low impedance outputs, all electronically servo-balanced and designed to be as transparent as possible. The 120’s transformerless circuits are designed for wide, flat frequency response, free from ringing or overshoot, making it ideal for distribution of time code or audio. Each output has its own amplifier and level control for maximum versatility and isolation. The sturdy steel chassis may be used stand-alone or rackmounted, singly or in pairs.
The input circuit is adjusted for optimal common-mode rejection. Servo-balancing compensates for high common-mode voltages, so headroom isn’t sacrificed. The high input impedance allows bridging of the input signal with minimum loading. This way several amplifiers can be easily driven from the source.
Features:
- 1 input/4 output with output trim adjustments
- Transformerless design for wide, flat frequency response
- Works for audio or time code
- Frequency response: 5Hz – 100 kHz (+0, -0.5dB)
- Dynamic range: 94 dB
- Hum and noise: better than -90 dBm at unity gain




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