--- product_id: 41775177 title: "Unity 200-Watt Bridgeable Power Amp - Class‑D Amplifier, 12-Volt Input/Output Triggers, Rack Mountable" brand: "monoprice" price: "NT$14455" currency: TWD in_stock: true reviews_count: 8 category: "Monoprice" url: https://www.desertcart.tw/products/41775177-unity-200-watt-bridgeable-power-amp-class-d-amplifier-12 store_origin: TW region: Taiwan --- # 225W peak bridgeable power 12V trigger input/output Rack-mountable with detachable connectors Unity 200-Watt Bridgeable Power Amp - Class‑D Amplifier, 12-Volt Input/Output Triggers, Rack Mountable **Brand:** monoprice **Price:** NT$14455 **Availability:** ✅ In Stock ## Summary > 🎶 Power Your Space with Precision & Style ## Quick Answers - **What is this?** Unity 200-Watt Bridgeable Power Amp - Class‑D Amplifier, 12-Volt Input/Output Triggers, Rack Mountable by monoprice - **How much does it cost?** NT$14455 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/41775177-unity-200-watt-bridgeable-power-amp-class-d-amplifier-12) ## Best For - monoprice enthusiasts ## Why This Product - Trusted monoprice brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Space-Savvy Design:** Compact, rack-mountable chassis fits neatly in any professional or home audio rack setup. - • **Seamless Automation:** 12-volt trigger input/output enables effortless integration with your smart home or AV setup. - • **Built to Last & Cool:** Class-D efficiency keeps heat low while built-in thermal and short circuit protection safeguards your gear. - • **Customizable Control:** Rear panel volume gain adjustment lets you fine-tune audio levels for perfect balance. - • **Power that Packs a Punch:** Delivers up to 225 watts bridgeable output for crystal-clear, room-filling sound. ## Overview The Monoprice Unity 200-Watt Bridgeable Power Amp is a versatile Class-D amplifier delivering up to 225 watts into an 8-ohm load when bridged. Featuring 12-volt trigger inputs and outputs for smart automation, detachable 4-pole speaker connectors supporting up to 12AWG wire, and rear volume gain control, it’s designed for multiroom audio systems and professional rack mounting. Its efficient design ensures minimal heat generation and includes built-in protection circuits, making it a reliable, compact powerhouse for both home and commercial audio applications. ## Description Unity 200-Watt Bridgeable Power AmpMultiroom audio systems are in high demand these days. Homeowners and businesses have their own idea of what they want. Sometimes the all-in-one does not meet the need of the client.This 2-channel class D power amplifier features a stereo speaker output, with support for 4-ohm and 8-ohm speakers. It can deliver 100 watts per channel into 8-ohm loads or 125 watts per channel into 4-ohm loads. Additionally, the output can be bridged to provide 225 watts to a single 8-ohm speaker. It includes a buffered loop line output of the original signal for driving another power amplifier in distributed whole house audio systems. The amp can be configured for always on, signal detection, or triggered power on status. It also includes a 12-volt trigger output for controlling other devices.Features:• 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 (Phoenix connector) with support for up to 12 AWG speaker wire• 12-volt trigger input for power-on/off• 12-volt trigger output for controlling other devices• Buffered loop output of original signal for connection additional amplifiers• Rear panel volume gain adjustment• Built-in thermal and short circuit protection circuits• Includes rack-mount ears for mounting a single amp or two amps side-by-side Review: Great inexpensive amp w/multiple power options and adjustable volume. Perfect to hide in a cabinet. - So I've actually bought 3 of these over the last few years. #1 I used to power a pair of atmos speakers with a 12V trigger line to turn it on from the AVR. #2 I used in the living room to drive a pair of bookshelves for casual listening using using the signal autodetect. The pass through RCA inputs go to a sub. #3 I used in my home office to drive a air of bookshelves using the signal autodetect. Maybe they aren't "audiophile" quality, but they have good sound even when using them at fairly loud volumes. The power on and off works reliably both with the 12V trigger as well as the signal detect. There is a "volume control" adjustment on the back of the amp meant for adjusting peak volumes more than anything else. I'm not sure if it really adjusts the output or just attenuates the incoming signal, but its mandatory to tweak it when using the signal detect function for power on. In my office, when I'm listening to music at a low volume while I'm working the amp would occasionally cut off due to the small input signal on quieter music. So adjusting the volume on the amp down about 30-40% means I can run the input at a higher volume level to make sure the amp stays on while still keeping the speakers at a reasonable volume level for background music. And even though I'm giving up on max power, the amp still drive my 89 dB sensitivity bookshelves a lot louder than I want to listen in my office so practically I'm not losing anything. Runs at fairly minimal heat and even after some spirited use in the living room where its mounted inside a cabinet with the door shut its not hot enough to worry about. I think its a good power level and feature set at this price. Review: Great Value for Money and Very Compact, But Not Too Powerful and Not Audiophile Sound - I have bought two of these to replace a different power amp with A/B/A+B switching that proved to be very lacking in power output, nowhere near what it says in the ad, even when driving just a single pair of speakers. My two Monoprice Unity 100s will be used to drive a pair of speakers in the ceiling of our dining room and a second pair out on our covered patio. For this type of service where you really don't need hundreds of watts or audiophile performance they are ideal. If you think you're getting audiophile performance from a Walmart priced (but I assure you not quality) product, think again. If you want more watts for your Atmos or rear surrounds or whatever, I would think about the more expensive 200 model, however. First of all the likes: 1. Price - at $125 and change these are excellent value for money for use as a modest power amp for, say, Atmos speakers or, as I am using them "muzac" service around the home. 2. Built quality - very sturdy cases, nice and solid, well finished. 3. Size - very low profile and only half the width of a standard hifi box or AV receiver, meaning you can put two side-by-side in your stack without taking up too much headroom. Rack mountable too with brackets supplied. 4. Heat (or lack of it) - being class D amplifiers they don't create a lot of heat, which is good. Things I don't like: 1. Volume knob on the back - might be okay for "set it and forget it" use, but for balancing speakers out it may be an issue for some. There's plenty of room on the front panel for a volume knob, I can only think hiding it on the back meant they could use a cheaper one (see below). 2. Volume knob is very small and needs a screwdriver to turn it. 3. Volume needs to be cranked up all the way anyway so why bother? 4. Speaker connections - you have to strip the wires and insert them into a block, tighten the screws down. The blocks will only take 14 awg wire at most, and you have to be careful not to let stray wire strands short out the connections - they are VERY close to each other. I have to reconnect my wires for a different reason this weekend, and I am going to take the opportunity to "tin" the wire ends with solder to give me solid ends to fit into the connector block. Sound quality? Jury's out on that one. To be fair I'm hardly using a pair of top-of-the-range hifi speakers, just modest built-ins, but I'm not expecting audiophile quality from a $125 amp either. Should be perfectly fine for Atmos or rear surrounds or muzac service though. ## Features - Class-d amplifier providing 50 watts/channel (RMS) into 8ohm loads or 65 watts/channel into 4ohm loads. Bridgeable output provides 120 watts into a single 8ohm load - 4 pole detachable speaker screw connector (Phoenix connector) with support for up to 12AWG speaker wire. 12-volt trigger input for power-on/off. 12-volt trigger output for controlling other devices. - Buffered loop output of original signal for connecting additional amplifiers - Rear panel volume gain adjustment. Built-in thermal and short circuit protection circuits - Includes rack-mount ears for mounting a single amp or two amps side-by-side ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N9VDSY1 | | Best Sellers Rank | #89,336 in Electronics ( See Top 100 in Electronics ) #564 in Audio Component Amplifiers | | Brand Name | Monoprice | | Customer Reviews | 3.8 3.8 out of 5 stars (160) | | Global Trade Identification Number | 00889028045343 | | Item Dimensions | 13 x 11.5 x 5 inches | | Item Weight | 6.2 Pounds | | Manufacturer | Monoprice | | Maximum Supply Voltage | 12 Volts | | Minimum Supply Voltage | 12 Volts (DC) | | Model | 118514 | | Mounting Type | Pole | | Number of Channels | 2 | | Output Power | 225 Watts | | Package Type Name | Cardboard Box | | Specification Met | FCC | | UPC | 889028045343 | | Voltage | 12 Volts | | Warranty Description | 1 | ## Product Details - **Item dimensions L x W x H:** 13 x 11.5 x 5 inches - **Manufacturer:** Monoprice - **Maximum Supply Voltage:** 12 Volts - **Minimum Supply Voltage:** 12 Volts (DC) - **Voltage:** 12 Volts ## Images ![Unity 200-Watt Bridgeable Power Amp - Class‑D Amplifier, 12-Volt Input/Output Triggers, Rack Mountable - Image 1](https://m.media-amazon.com/images/I/610vPG4HU0L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great inexpensive amp w/multiple power options and adjustable volume. Perfect to hide in a cabinet. *by M***S on July 25, 2022* So I've actually bought 3 of these over the last few years. #1 I used to power a pair of atmos speakers with a 12V trigger line to turn it on from the AVR. #2 I used in the living room to drive a pair of bookshelves for casual listening using using the signal autodetect. The pass through RCA inputs go to a sub. #3 I used in my home office to drive a air of bookshelves using the signal autodetect. Maybe they aren't "audiophile" quality, but they have good sound even when using them at fairly loud volumes. The power on and off works reliably both with the 12V trigger as well as the signal detect. There is a "volume control" adjustment on the back of the amp meant for adjusting peak volumes more than anything else. I'm not sure if it really adjusts the output or just attenuates the incoming signal, but its mandatory to tweak it when using the signal detect function for power on. In my office, when I'm listening to music at a low volume while I'm working the amp would occasionally cut off due to the small input signal on quieter music. So adjusting the volume on the amp down about 30-40% means I can run the input at a higher volume level to make sure the amp stays on while still keeping the speakers at a reasonable volume level for background music. And even though I'm giving up on max power, the amp still drive my 89 dB sensitivity bookshelves a lot louder than I want to listen in my office so practically I'm not losing anything. Runs at fairly minimal heat and even after some spirited use in the living room where its mounted inside a cabinet with the door shut its not hot enough to worry about. I think its a good power level and feature set at this price. ### ⭐⭐⭐⭐ Great Value for Money and Very Compact, But Not Too Powerful and Not Audiophile Sound *by D***H on June 7, 2019* I have bought two of these to replace a different power amp with A/B/A+B switching that proved to be very lacking in power output, nowhere near what it says in the ad, even when driving just a single pair of speakers. My two Monoprice Unity 100s will be used to drive a pair of speakers in the ceiling of our dining room and a second pair out on our covered patio. For this type of service where you really don't need hundreds of watts or audiophile performance they are ideal. If you think you're getting audiophile performance from a Walmart priced (but I assure you not quality) product, think again. If you want more watts for your Atmos or rear surrounds or whatever, I would think about the more expensive 200 model, however. First of all the likes: 1. Price - at $125 and change these are excellent value for money for use as a modest power amp for, say, Atmos speakers or, as I am using them "muzac" service around the home. 2. Built quality - very sturdy cases, nice and solid, well finished. 3. Size - very low profile and only half the width of a standard hifi box or AV receiver, meaning you can put two side-by-side in your stack without taking up too much headroom. Rack mountable too with brackets supplied. 4. Heat (or lack of it) - being class D amplifiers they don't create a lot of heat, which is good. Things I don't like: 1. Volume knob on the back - might be okay for "set it and forget it" use, but for balancing speakers out it may be an issue for some. There's plenty of room on the front panel for a volume knob, I can only think hiding it on the back meant they could use a cheaper one (see below). 2. Volume knob is very small and needs a screwdriver to turn it. 3. Volume needs to be cranked up all the way anyway so why bother? 4. Speaker connections - you have to strip the wires and insert them into a block, tighten the screws down. The blocks will only take 14 awg wire at most, and you have to be careful not to let stray wire strands short out the connections - they are VERY close to each other. I have to reconnect my wires for a different reason this weekend, and I am going to take the opportunity to "tin" the wire ends with solder to give me solid ends to fit into the connector block. Sound quality? Jury's out on that one. To be fair I'm hardly using a pair of top-of-the-range hifi speakers, just modest built-ins, but I'm not expecting audiophile quality from a $125 amp either. Should be perfectly fine for Atmos or rear surrounds or muzac service though. ### ⭐⭐⭐⭐⭐ Has all the needed features. *by J***S on June 15, 2018* I am using this item to power the rear high surround speakers in my Dolby Atmos 7.4.4 setup. Yes I have 4 high speakers, 2 front, 1 center, 2 surround, 2 rear surround, and 4 sub-woofers (1 in each corner of the room). Powered by Onkyo TX-RZ920 9.2 4K UHD Atmos receiver. The 2 extra rear high channels are fed from the pre-out jacks, and that's what drives this Monoprice amp. In case you are wondering, 2 of the sub-woofers are part of my front speaker setup, configured as full-range. The other two sub-woofers are connected to the Onkyo sub1 and sub2 outputs. Many people do not realize the incredible difference that balanced subs can make. Now, back to the Monoprice amp: It is so well designed and configured. I like the fact that you can choose to have it auto power-on, or be triggered from the 12V trigger of the main amp. The unit is compact, sturdy and comes with heavy duty brackets for wall mounting or stacking. There is also the ability to bridge the amp, or to select 4 or 8 ohm output. The volume control is an almost hidden turn screw - great for this application - no chance to accidentally change the volume after you have carefully calibrated the whole system. The amp silently comes on when needed, and turns off some time after the music stops. Perfect. My only minor issue is that the speaker connector could be more robust. On the other hand, it is designed to connect all the wires to a single plug, which is very handy for installation and maintenance. ## Frequently Bought Together - Monoprice Unity 200-Watt Bridgeable Power Amp - Class‑D Amplifier, 12-Volt Input/Output Triggers, Rack Mountable - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tw/products/41775177-unity-200-watt-bridgeable-power-amp-class-d-amplifier-12](https://www.desertcart.tw/products/41775177-unity-200-watt-bridgeable-power-amp-class-d-amplifier-12) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-04-24*