The Valcom V-2994 Page Port Preamp/ Expander is a solid-state audio preamplifier
which can be mounted into a single-gang electrical box. The amplifier will accept a high
impedance input (600 Ohms) and reduce it to a low impedance output.
When the control knob is set on 5, the input signal level equals the output signal level.
The V-2994 is capable of driving 150 Valcom
one-way speaker/amplifier assemblies.