APA150 150W Power Amplifier

Quick Overview

Dayton Audios versatile APA150 can deliver 75 watts into 2 channels, or 150 watts into 8 ohms when set to bridge-mono mode. A built-in, switchable low-pass filter makes this a great subwoofer amp, and full range line-level outputs allow for bi-amp configurations.

Product Highlights

  • Virtually noise-free fan operation for near field applications
  • Sleek modern design looks good in any audio system
  • High current, discrete output transistors that run cool and quiet
  • Adjustable 50-150 Hz low pass crossover gives you the room control you need
  • Gold-plated 5-way binding posts that accept up to 8 AWG wire

Product Manuals / Spec Sheets / Downloads

Dayton Audio APA150 User Manual

Buying Options

Amplifiers today need to be multi-faceted to keep up with the task at hand. Versatility is the foundation upon which the APA150 is based. Configured in stereo mode, amplification is provided to a pair of speakers for stereo or surround playback. Select bridge-mono mode and the APA150 is configured for powering a center channel speaker, or a subwoofer/tactile transducer when used with the on-board low pass filter. Full-range line-level outputs allow for daisy chaining amplifiers for a multi-room whole house audio system or for bi-amp applications. A smaller chassis consumes less space than conventional amplifiers making placement options virtually endless.

Key features of the APA150 are high current, discrete power transistors (used in premium amp designs), a hefty toroidal power supply transformer, low-noise forced air cooling, a fully adjustable—and defeatable—electronic 50-150 Hz low-pass filter (18 dB/octave), and complete protection against electrical shorting and thermal overload. Also included is auto-on/off, silent turn-off with no audible transient, gold plated RCA inputs/outputs, and 5-way binding posts.

Model Number APA150
Color Black
Unit of Measure Each
UPC 844632061523
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 13
Product Height 5.6"
Product Width 5.7"
Product Length --
Product Depth 12.8"
Amplifier Type Power Amplifiers
Power Output 75 watts RMS x 2 into 4 ohms
150 watts RMS x 1 into 8 ohms
Power Output (RMS @ 70V) Range --
Output Channels 2
Output Connectors 279
Output Types 285286
Inputs 1
Input Connectors 299
Input Impedance 47 k ohms ±5%
Signal-to-Noise Ratio

>100 dB


THD @ Rated Power Less than 0.01%
Parametric EQ --
Phase Adjustment --
Low-pass Crossover

Variable 50-150 Hz

18 dB/octave

Low Pass Adjustment --
Dynamic Range --
Frequency Response

20 Hz - 20

000 Hz

Efficiency --
Gain --
Bass Boost --
Voltage Requirement

120V 60 Hz

230V 50 Hz (switchable)

Auto-on Sensitivity 3 mV
Stand-by Power Rating --
Special Features --