Alta Moda AM-30

GAIN control
An 11-position rotary switch sets overall gain of the first amplifier stage. Unlike other transformerless designs, this first stage has soft, even-order harmonic overload characteristics, similar to a vacuum tube triode.

OUTPUT control
Controls the output level of the AM-30. It is a true continuous fader; it ranges from "0" up to an additional 6 dB of overall boost.

Signal presence light
To make recording session setup easier, the AM-30 is equipped with a simple "signal present" indicator light. Since it is difficult to clip the AM-30's front end (and better to judge sound quality by ear), no clip indicator is needed.

DIRECT INPUT
A standard 1/4" phone jack allows instruments such as bass and keyboards to be amplified directly. This FET-based circuit drives the input of the preamp just as a microphone would.

500-Series Rack Compatability
The AM-30 is compatible with any 500 series rack system which has 48V phantom power available. To achieve its maximum headroom, the AM-30 effectively uses all three available power supply rails for its power source.