Monoprice Unity 450 Watt Bridgeable Power Amp

SKU: MNP-31027
  • Class D amplifier providing 150 watts/channel (RMS) into 8 ohm loads or 225 watts/channel into 4‑ohm loads
  • Bridgeable output provides 450 watts into a single 8‑ohm load
  • 4‑pole detachable speaker screw connector (Euroblock connector) with support for up to 12 AWG speaker wire
  • Built‑in thermal and short circuit protection circuits
  • Includes rackmount ears
Unit Price
US$ 381.33
US$ 381.33
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Audio Inputs
Stereo analog RCA and 3.5mm TRS line inputs
Input Power
115 or 230 VAC, 50/60 Hz
Frequency Response
20Hz ~ 20kHz +0/‑2dB @ 8 ohms
Total Harmonic Distortion
< 1% @ 150 watts into 8 ohms
Output Power
150 watts/channel into 8 ohms or225 watts/channel into 4 ohms or450 watts into a single 8‑ohm load
Input Sensitivity
Signal‑to‑Noise Ratio
> 90dB(A)
Minimum Output Impedance
4 ohms in stereo mode8 ohms in mono bridged mode
Protection Circuits
Thermal and short circuit

This 2‑channel class D power amplifier features a stereo speaker output with support for 4‑ohm and 8‑ohm speakers. It can deliver 150 watts per channel into 8‑ohm loads or 225 watts per channel into 4‑ohm loads. Additionally, the output can be bridged to provide 450 watts to a single 8‑ohm speaker. It includes a 3.5mm stereo input along with dual RCA L/R inputs.

Monoprice™ and all Monoprice logos are trademarks of Monoprice Inc.

Warning: This product can expose you to Lead, which is known to the State of California to cause cancer and reproductive harm. For more information, go to
Shipping specs
3.60 lbs
8.4" x 9.8" x 1.7"
Shipping from
This product is shipped from our supplier's warehouse in Rancho Cucamonga, CA, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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