100% Genuine

Manufacturer Warranty

Fast US Shipping

Monoprice, Inc. 18514 Monoprice 18514 Amplifier - 400 W RMS - 2 Channel

Part Number:

18514

1 pieces ready to ship - additional units ship in 7-10 business days.
Estimated shipping in 7–10 business days.
Estimated shipping in 7–10 business days.
Ready to ship.

1 pieces ready to ship - additional units ship in 7-10 business days.

$302.21

USD + Applicable Tax

Visa
Mastercard
American Express
PayPal
Shop Pay

Monoprice 18514 Amplifier - 400 W RMS - 2 Channel - 0.5% THD

  • Helps maintain the signal's strength
  • The sound moves around at 4 Ohm impedance - a joyful journey to audio pitching and loudness, both
  • Showcases 2 audio channels

General Information

Manufacturer Monoprice, Inc
Manufacturer Part Number 18514
Manufacturer Website Address http://www.monoprice.com
Brand Name Monoprice
Product Model 18514
Product Name 18514 Amplifier
Marketing Information

Unity 200-Watt Bridgeable Power Amp

Efficient, Versatile Class-D Amplification for Business and Home Audio Systems

The Monoprice Unity 200-Watt Bridgeable Power Amp delivers high-performance audio amplification tailored for multiroom sound systems in both residential and commercial settings. Built for flexibility and power, this Class D amplifier is the ideal choice for users seeking a customizable alternative to standard all-in-one audio solutions.

Supporting 4-ohm and 8-ohm speaker configurations, it delivers up to 125 watts per channel or 225 watts in bridged mode. A buffered loop line output allows seamless expansion to additional amplifiers, while multiple power-on modes-always-on, signal detection, and trigger activation-offer versatile control. With a 12-volt trigger output for connected devices, this amp is a reliable and scalable solution for whole-house audio installations.

  • Class-D amplifier providing 100 watts/channel (RMS) into 8 ohm loads or 125 watts/channel into 4-ohm loads
  • Bridgeable output provides 225 watts into a single 8-ohm load
  • 4-pole detachable speaker screw connector (Euroblock connector) with support for up to 12 AWG speaker wire
  • Buffered loop output of original signal for connection additional amplifiers
  • 12-volt trigger input for power-on/off
  • 12-volt trigger output for controlling other devices
  • Rear panel volume gain adjustment
  • Built-in thermal and short circuit protection circuits
  • Includes rackmount ears for mounting a single amp or two amps side-by-side


Product Type Amplifier

Technical Information

Total Harmonic Distortion (THD) 0.5%
Impedance 4 Ohm
Classification D

Audio

Audio Channels 2
RMS Output Power 400 W

Interfaces/Ports

Number of Analog Audio Inputs 2

Power Description

Input Voltage 120 V AC
Input Voltage 230 V AC
Input Voltage 12 V DC

Physical Characteristics

Height 1.8" mm
Width 10.5" mm
Depth 8.5" mm
Weight (Approximate) 3.97 lb g

Miscellaneous

Package Contents
  • 18514 Amplifier
  • Rackmount ears
Form Factor Rack Mount
Country of Origin China
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)

Warranty

Limited Warranty 1 Year

Why Buy From Us 🇺🇸

US-Based Company — Operated and shipped from the United States, with fast domestic delivery and local support.

100% Genuine Products — Sourced through authorized channels and shipped factory-sealed in original manufacturer packaging.

Manufacturer Warranty — Every item is backed by the manufacturer's warranty (see Product Specifications for details).

Fast Dispatch & Tracking — In-stock orders ship same day before 1:00 PM CST, with tracking emailed once your order is on its way.

Bulk & Quote Pricing — Need volume or business pricing? Contact us for a custom quote and dedicated support.

Shipping & Order Policies 

Stock products ship the same day for orders placed before 1:00 PM CST.

Most backorder items ship in an estimated 2–12 business days; confirmation is provided the next business day after your order.

Delivery times are estimates. If you need a specific delivery date, please confirm with customer service before placing an order for backordered items.

All sales are final. Orders cannot be canceled, returned, or refunded once placed, in accordance with manufacturer policies. Warranty coverage follows the manufacturer's warranty listed under Product Specifications; if it isn't shown for this item, please contact customer service.