Audio amplifiers take in line level audio and output speaker level audio. Most of the amplifiers on this page are designed for whole-house-audio; they provide amplification for (likely in-ceiling or in-wall) speakers in one or more rooms.

The A0240 is a 2-channel x 40 Watt class D amplifier. It can be used to
power a small 1-room audio system or integrated with Channel Vision's
A0302 to provide supplemental power to low power distributed audio
systems. It's compact size makes it easy to hide and its versatile power
plug allows direct wall plug-in or tabletop operation using the detachable
power cable. With its easy installation and operation, the A0240 is perfect
for any audio system that just needs a little more power.

A 40 Watt stereo Local Source Amplifier designed to fit into a standard single gang box to amplify any local audio source, through that zones speakers. Available in two versions.

For an individual zone, use LSA40S which includes a local power supply.

Or power up to four LSA40 amplifiers with the LSA40PDS power supply.

TV Power Amplifier with Automatic Switch

The Auto Amp 15 enables you to use a single pair of in-wall speakers to safely play sound from both a whole house system and a local television. Both the TV (or other audio source with line-level audio output) and the whole house system connect to the Auto Amp 15 (typically hidden behind the TV). When the television is off, the whole house music system is automatically routed to the speakers with pure direct pass-through. When someone turns on the TV, the Auto Amp 15 automatically disconnects the music system and turns on the built-in high-current TV power amplifier.

Now enjoy your television in stereo with real power pushing your in-wall speakers! When the TV is turned off, the music system is re-connected to the in-wall speakers automatically.

The EZ-MXA20 is a stereo mixer amplifier with one mic input and two line inputs. Bass and treble tone controls are included. An integral compressor/limiter allows a higher sound output level without clipping than is possible using a standard amplifier. The output drives 4 or 8 ohm speakers. The EZ-MXA20 is used in houses of worship, restaurants, clubs, meeting rooms and commercial sound systems.

The EZ-PA20 is a stereo audio amplifier with one line input and a front-panel volume control. An integral compressor/limiter allows a higher sound output level without clipping than is possible using a standard amplifier. The output drives 4 or 8 ohm speakers. The EZ-PA20 is used in houses of worship, restaurants, clubs, meeting rooms, educational facilities, conference rooms and commercial sound systems.

The MODEL 500 subwoofer amplifier was designed to offer performance, value, and flexibility. It incorporates a 500W class A/B amplifier utilizing the patented BASH technology for high electrical efficiency.

Four independent controls offer flexibility to integrate nearly all subwoofers with the main speakers and the listening environment. The continuously-variable low pass filter network is adjustable from 40 to 120Hz and can be bypassed if it is preferable to use an external filter or one located in an outboard receiver or processor. The continuously-variable phase circuit is adjustable from 0 to 180 degrees to finely integrate the subwoofer with the main listening speakers.

The MODEL 500 incorporates a unique subsonic filter adjustable from 20 - 35Hz that limits/extends power output to the lowest frequency the subwoofer driver is capable of reproducing. This maximizes performance, helps to protect the subwoofer driver from being overdriven and will reduce distortion by limiting extreme subwoofer driver excursions.
A defeatable Auto-power mode turns the amplifier on automatically when a signal is detected. The Auto-power mode can be defeated if it is desirable to use a remote AC circuit to control the amplifier (on/off) power.

Dual subwoofer outputs allow multiple woofers to be connected to the same amplifier without having to resort to pigtails, wire nuts, or specialized connectors.

The MODEL 500 incorporates stereo Line-Level inputs and outputs that permit the amplifier to be connected between a preamplifier and amplifier without the need for Y-connectors. The Line-Level inputs also incorporate a buffered internal summing network so that a mono signal is derived from the left and right channels while maintaining the stereo signal integrity for the main stereo speakers. A double-insulated, isolated-ground electrical supply prevents electrical ground loops and reduces the noise floor of the entire audio system.