AudioControlEPICFIVE Epic Series 1100 Watt RMS 5-Channel Car Audio Amplifier, Class D, Epic Boost, Subsonic Filter, High-Pass/Low-Pass Filters, ACR-E Remote Bass Knob, Epicenter Link

This amp is seriously a great amp. And it does the numbers as advertised. So be careful setting your gains it would be extremely easy to blow a speaker if there not set correctly. It sounded good when I put it in last week but every day I listen to it it sounds better. And that could be the speakers breaking in. It's a longer amp so plan your placement before purchase. I'm happy I spent the money on a good product and did the job correctly because now I'm rewarded with a great sounding system

Packs a lot of punch when you follow the instructions! Two ohm speakers at doors or dash and maintain one ohm with subs. Produces nice power!

This was the perfect amplifier for what my speakers and it didn’t cost me an arm and a leg recommend getting this if you’re looking for something designed to run your whole system

It was very well packed. It also shipped very fast.

This AudioControl EPICFIVE amplifier is a powerhouse! With 1100 watts, it definitely lives up to its name (EPIC) and delivers impressive sound quality and volume. The Class D design ensures efficiency and reliability, while the high-pass and low-pass filters allow for precise sound customization. The subsonic filter is perfect for deep bass, and the ACR-E remote bass knob offers convenient control. Whether you're upgrading your car audio system or building from scratch, this amp is a solid choice for top-notch performance.

Great, clean power in a compact size, and a really good price. I’m using all 5 channels and couldn’t be happier with my choice. Audio Control continues to lead the way.

I'm an electrical engineer and I love car audio, and home audio. Most of my gear is JL Audio and RBH Sound.Most reviewers online do not or cannot make objective measurements of audio gear. I was able to verify most of the power ratings.SETUPPower supply: 160A 14.4v (plenty of power)5 Power resistors and a 4ch Oscilloscope measuring the output voltage, +,- voltage rails and a current probe measuring output current.I had the Oscope measure the RMS output voltage and current. Output RMS Volts *Amps = Power (Watts).I have 4x 500 Watt power resistors and 1x 2 Ohm 500 Watt resistor.4 CH amp: 2ch x 4 Ohm Bridged (same as 4ch x 2 Ohm, the hardest load for the 4ch section)Sub amp: 4, 2, and 1 Ohm Resistive loads.I tested the 4ch and sub channel both separate and together.Results (Sub channel only)1x 300.5 W @ 4 Ohm (Spot on!) see picture1x 538 W @ 2 Ohm (rated at 500W, so spot on!) see picture1x 774 W @ 1 Ohm (rated at 700W, so more power than expected, but wait until the 4ch amp section is fully loaded) see pictureResults (4Ch amp only, no sub driven)I did not measure the 4ch section at 4x 4ohms, only 2x 4 Ohm bridged.When measuring the 4ch section, I saw some distortion when the waveform got within about 5v of the rail, at the peaks the class D high frequency modulation started to break up a lot and was really ugly. It did not look clean, so I backed it down just enough to reduce that. In the picture you can see the peaks just start to break up.I was able to measure 2x 224W @ 4 Ohm bridged (this is the same as 4x 2 Ohm).It is rated for 2x400 W @ 4 Ohm Bridged. 1/2 power is about -3dB.Now, in my pictures you see the average of the voltage rails to measure about 29v.VRMS = Vpk / sqrt(2), or VRMS = Vpk * 0.707.Also Power = V^2 / R.Here's some math: Prms = (Vpeak * 0.707)^2 / 2; Power = (29v*0.707)^2/2r = ~ 105W or so. We use 2 ohms here because in a bridged 4 ohm setup each channel sees 2 ohms to GND, ie 2 Ohm for 1 amp + 2 ohms for the other amp (4 ohm bridged).So that would suggest that if all 4 channels are driving this, then 210W total from each channel, ie about 400W per bridged pair of channels. So this would support their claim of 2x400W @ 4 Ohm Bridged.However, I would not count that because of the distortion. I did not verify the FFT of the waveform to see if there was distortion on the spectrum when driven that hard. I tried, but didn't get meaningful results.ALL CHANNELS MAXED OUT:This was an interesting test. I maxed out the sub channels and the 4ch satellites to just below clipping and visible distortion. This type of load does NOT reflect typical music at all. Music is very transitory and has short peaks, while most of it stays several dB lower. Music is dynamic. So, while pushing the amp to it's absolute max on all channels, we were really stressing all components at once. Everything go really hot, and eventually thermally triggered the amp into protect.Is this a problem? NO, not at all. Even if you were pounding the sub and satellites, it still does not get close to 3/4 of that kind of power draw and stress. The total system power was 850W. It was pulling over 100A from the 14.4v power supply.PROS:The 4ch amp section HPF has something I've never seen on it before; the potentiometers to adjust the crossover clicks below 50Hz like a switch and defeats the crossover, all in a single knob. That was very nice to see, and a great way to save space while still providing a full range 4ch setup.It comes with a Bass knob. I don't care for the blue light on it though.The sub preamp section has gain, LPF frequency, HPF subsonic filter, and EpicBoost bass boost, but I'm unsure at what frequency (usually at 45Hz).There is a knob to put the amp in 2, 4, and 5 channel input modes which is also nice.CONS:I could not get the "Maximized" or clip light to turn on at all, even when 4ch or sub channels were clipping hard. Not sure why.Also the amp is very long compared to the others in the series, even longer than the Epic2000 monoblock, but that is because it has 5 channels in it. All Epic amps are the same width, just different lengths. They could've made it much more compact if they made it wider. It is still only about 13.5" long, which is pretty small for a powerhouse like this.Also, all 5ch output terminals are bunched together in 2 rows of 5 pins on top of each other. So, it means you have to completely remove the wires of the top row in order to get your allen wrench in to adjust the bottom row - that could be quite annoying.Conclusion:Does it matter that the 4ch amp didn't do 2x400W @ 4 Ohm bridge, but did 1/2 cleanly, but might could do it theoretically if it wasn't as clean? No. It doesn't matter at all.Satellite speakers use very little power even at high volumes. The peaky transient nature of music means that some clipping and distortion is so small in time, momentary, that you won't notice. Again, I don't know if pushing it to the peak would've sounded bad, it just looked bad on the scope.I wish I had an Audio Precision so I could measure THD and noise with precision. Some day...Anyways, this amp rocks, and so does AudioControl.PS, there's an easter egg I've found in this amp and the Epic750 (and I suspect in the Epic1500 and Epic2000 that I have and need to test), on the white silk screen there is a picture of some cartoonish guy and the words "Spire" or "Spike". Not sure who that is or why, but nicely done.BTW, all of these class D amps, including other recently released class D brands I've reviewed all use the same Class D controller, the IRS2092S (pre LC filter feedback taken controller)

Excellent amp. Quality made and great sound quality. Very functional and does t over heat. Fantastic quality for the money.