P75 Two-Channel, 75W, Dual Source Amplifier

The P75 is a 2-channel dual source power amplifier with autosource switching. It features two audio line inputs with a loop out to another zone, receiver, or device from Line 2 source. This amplifier can be used for power upgrades in specific zones, for speaker selector or volume control systems.


Using the P75 with a Single Audio Source:

The P75 is a versatile 2-source amplifier with automatic switching.  Assuring that all connections are made properly is critical to that functionality. When using a single audio source however, we frequently get asked about how to make the connection on the rear of the P75.

Over the lifetime of the P75, there have been several different labeling variations used on our P75 to explain the connections, but the main audio source input, also known as the “Default” always uses the same physical location on the rear of the P75 as shown below.

P75 Rear Panel Labeling Reisions

Troubleshooting Tips:

  • If you’re hearing dropouts happening during music playback, make sure that your default audio device is connected to the input shown above.
  • If you are using two audio sources on the P75, make sure the default source, the one that you want to listen to most frequently, is connected to the “Default In” connection as shown above. The second source that you want to have automatically become the P75’s active source should be connected to the other input, the one on the left in the illustrations above.


Features Overview:

P75 Callout Overview

Limited Warranty 1 year 01



The P75 is a Class A/B amplifier rated at 75 watts per channel into 4 ohms, and 60 watts into 8 ohms. With the Stereo/Bridge Mono switch in Bridge Mono position, both amplifier channels are combined for a higher powered mono output. In Bridge mode the P75 is rated at 160 watts of power into a single 8 ohm load.

Not available to countries requiring CE certification. 110v only.


  • Built for multi-speaker applications with volume controls
  • Automatic switching between two sources with signal sensing
  • Front panel volume and balance controls
  • Channels are bridgeable to create one channel with 160 watts of power
  • Shipping Dimensions: 10.5" (W) x 4.5" (H) x 20.0" (D), (26.7 x 11.4 x 50.8 cm)
  • Shipping Weight: 11.5 lbs (5.2 kg)
  • Crosstalk: > 70dB @ 1 kHz
  • Frequency Response: 10Hz to 30kHz +0.0dB/- 3.0dB @ 8 ohms, 1 W
  • Input Sensitivity: 900mV for 50W at 8 ohms
  • Power Output: 60W per channel at 8 ohms
  • Power Requirement(s): 120VAC 60Hz 4.2A
  • Signal to Noise Ratio: 100dB A-weighted


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P75 Product Manual: P75_Product Manual.pdf

P75 Product Brief: P75_Product Brief.pdf



Do you have P75 that isn't outputting audio or is cutting in and out? We'll show you how to fix that quickly and easily in the video below:

P75 Front: P75_Front.jpg

P75 Rear: P75_Rear.jpg