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Unity 200-Watt Bridgeable Power Amp
Multiroom 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.
- 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
|Audio Inputs||Stereo analog RCA line input|
|Audio Outputs||Buffered stereo analog RCA loop line output|
100 watts/channel into 8 ohms with 0.1% THD+N or
125 watts/channel into 4 ohms with 0.5% THD+N or
225 watts into a single 8-ohm load with 0.2% THD+N
|Minimum Output Impedance||
4 ohms in stereo mode
8 ohms in mono bridged mode
|Trigger Input||12 VDC, 10 kΩ|
|Trigger Output||12 VDC, 100mA|
|Input Power||100 ~ 240 VAC, 50/60 Hz, 2.5A|
|Standby Power Consumption||≤ 0.5 watts|
|Dimensions||8.5" x 10..5" x 1.8" (216 x 267 x 45 mm)|
|Weight||4.0 lbs. (1.8 kg)|
Questions and Answers
Roger J here. Even though the best venting orientation is obviously horizontal, my personal experience is this amp doesn't get very warm at all, even with fairly high volume levels for an extended period of time, so I personally wouldn't worry too much about mounting it vertically on the wall. However, I don't think I'd be comfortable mounting it in a way that would block the vents. I hope that helps.
Check the RMS rating of your speakers. This amp does have a line out so you can run two side by side to drive all of your speakers.
9 months ago
5 months ago
8 months ago
The only issue that I have is that there is a constant noise produced by the amp independent of the output. It is only annoying on very quite passages or when there is silence in the track.
I am keeping it though.
7 months ago
4 months ago
Sound was noticeably sterile compared to previous Pioneer receiver setup. Did some EQ tweaking but never got the "warmth" and "spacious" sound as it was before. Internet searches found that this can be due to it being a Class D amp.
As mentioned, amp has plenty of power and was never warm to the touch. Replaced it with a Crown XLI-800 (Class AB) amp and the sound was much better to my ears.
Good deal for the amp and will keep it to use for a subwoofer or surrounds instead.
7 months ago
1 month ago
3 months ago
I have been using the trigger to turn it off and on with the receiver, and that works flawlessly.
4 months ago