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E400.4 – Full range 4, 3 or 2 channel amplifier with CLEAN D technology, 2 ohm stable, built in crossovers

D'Amore Engineering E-Series Amplifiers, powerful enough to drive the most demanding speakers with great sound quality at an amazing price. 

  • 4 AWG Power and Ground connectors
  • Extruded aluminum heatsinks
  • Full MOSFET design

CLEAN D = High efficiency Full Range Class D with filtering of all inputs and outputs for clean performance throughout the passband and all the way to clipping.  CLEAN D design also protects the vehicle’s sensitive electronic systems from EMI, the typical cause of check engine lights and other random bad behavior. 

  • 60 Watts X 4 continuous into 4 ohms 
  • 100 Watts X 4 continuous into 2 ohms
  • 200 Watts X 2 continuous into 4 ohms bridged


Other specs in user manual below

User Manual 


Customer Reviews

Based on 9 reviews
Evan Field
Clean d amplifiers

Sounds incredible and produces more power than rated. Pair this with the 750.1 or the 1000.1 and you will be very happy with how good they sound

LaMont Holland
Bad ass amp E400.4

I usually don't do reviews much, but I had to do one for this amp! This is a lil power house and very clean too! When I installed it I left the settings on deck the same. Boy I had to make some changes. The amp is so powerful and clean I could turn it up more than the old one with more power! If you are looking for a new amp and you want the very best for your money? This amp will amaze you! There is no doubt you should buy this amp!

Kyle Blackwelder

Purchased the 350.2, 400.4. Using the 400.4 on 2 satori mids (one per door) and 2-hertz coax in the dash. (All active with dsp) All the power and more. Time, doesnt matter. From a 3 hour drive, running the system full rip, the board doesnt get hot at all, not matter how long. The connections (pos/neg, speaker terminals) are super nice. Small footprint for the power. They look great if you are into that, and also, using my Umik, i see full band width (something many class D, dont/wont give you) and the price, is amazing for what you get. Time will tell on longevity, but atm, i have zero fear(s).
Happy listening all.
(Also, I am also using knu 4-guage, like the reviewer below, and it fit perfectly. Dont know whats going on there. But it fit perfectly for me)

Nathan Brown

I'm using it with 2 crescendo mezzo sq2 components in my front doors. I doubt anyone could tell this is a D class amplifier. Maaaybe there was a side by side comparison. I used to be a rockford fosgate guy but for the price, power and sound quality this can't be beat.

Thu Vy
Nice Amp

Seems like a great amp but couldnt install it because my knuconceptz 4 gauge wire doesnt fit and I dont want to rewire my trunk to install it. Cant comment on performance but its a tiny but heavy amplifier. Sucks about the wiring part. Bummer

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