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Annette Mabrey
2025-08-30 15:21:37
This amp is small and powerful. Just what I needed to upgrade my sound system with room to upgrade my speakers. I crudely tested the maximum RMS output of the amp with a multimeter and it seems to be putting out about 90 watts RMS at 4 ohms, slightly lower than the rated 100 watts but I'm happy with it for this price. I will be testing again when I upgrade my speakers and start to run it at 2 ohms. The amp is very clear, crisp and loud. FM radio is still clear. Mids and highs sound great at the fixed 80Hz crossover. Overall very happy with this purchase.UPDATE: 2 months later at mostly full volume listening, the amp is still doing great. I have added tweeters and am now running it at 2 ohms, I did a test and it is putting out 146 watts RMS per channel. This amp is accurately rated as far as I can tell. I 100% reccomend this amp. It is extremely loud although it does distort a bit at peak volume, but that is probably my cheap head unit.
T Rev
2025-07-13 13:26:02
I liked how compact it is and how much power it puts out. Only thing I didn't care for is how the ground terminal is directly underneath the power terminal.
Jay Lind
2025-06-05 12:01:49
Excellent small class D amp @ 125w rms x4 from 1200w peak unit. Gets warm not hot when pushed so give it air to cool. My 2nd, the first is still going strong after 4 yrs. I also have the 900w mono block driving a 12†sub. There size makes them fairly easy to locate and low power consumption compared for its output. Best gain setting is a balancing act, start set gain to minimum, head unit volume to 75-80% which is below the clipping threshold, increase gain on amp until speakers begin to distort, then reduce to clear state then max gain is now set. Will require to be redone if any major EQ changes as the head unit output will change. EQ then gain until unit its dialed in for your components.
Marvin Diaz
2025-05-16 12:31:08
Doesn't work
Willie
2025-04-24 12:33:15
Very small for an amp,I don’t think it’s a 1200 watt amp at all I would say around 400watt max only using them to power door speakers very crisp highs and midrange is decent wasn’t worth the asking price but otherwise good amp
Brandon L.
2025-03-18 12:05:44
Fits nicely in my Tour Pak and in the fairing of a Limites Electra Glide, for the price and dependability I use them regular when installing stereos in motorcycle, have yet to have one fail that is the 1200d, however the 2000d putting out 193 watts at 4 ohm did. I stick to the 1200d they are fantastic, can be used to hook up 8 speakers on one motorcycle
Customer
2025-02-10 12:16:03
Runs very well
KMFenderboy
2025-01-08 14:44:45
I had this installed on my 2018 Harley Davidson Road Glide And I’m very happy with it. My buddy have one on his 2019 road glide as well. Awesome amplifier
Dianne Dubois
2024-12-12 15:48:19
Purchased the RZ4-1200D on August 23rd 2016 and received on August 28th 2016.I have a set of Infinity Reference 6500cx hooked up to the front channels, and also a set of Infinity Reference 6502ix hooked up to the rear channels.I set the gains using my multi-meter, following the SonicElectronix guide.[...]The amp worked perfectly until yesterday, when the front left channel crackled and popped and simply stopped working.I thought my speaker was the problem and might have blown, but when I swapped it into the front right channel it worked fine.The front left channel of the amp is what doesn't work.I am over the 30 day return policy for electronics, so now I have a nice paperweight... a $150 paperweight.I will never purchase another Power Acoustik product.
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