its a dope little amp that packs a punch, can almost fit anywhere

I bought this amp to teach my son some car audio basics. It was great for that. The indexed filters was an awesome way to teach him how to set them while also showing him the theory with a multi meter and the easy on off buttons. The only reason I didn’t give it 5 stars was the rca pigtails. I understand why on an amp this small and they are good quality, just not my favorite.

If you're serious about your car audio setup, the DOWN4SOUND MM504 is an absolute game-changer. This amplifier exceeded my expectations in every way possible. The build quality is top-notch, with a solid, sleek design that screams durability and performance._x000D_
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What truly sets it apart is its power output—it's a beast! The sound clarity is unmatched, delivering deep, punchy bass and crisp highs without any distortion, even at high volumes. It's perfect for those who want to push their system to the limit._x000D_
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The installation process was straightforward, even for someone not overly experienced with car audio equipment. The customer service from Down4Sound was exceptional—they answered all my questions and ensured I had the right setup for my system._x000D_
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Overall, the MM504 offers premium quality and performance at a great price point. It's been a total upgrade for my car audio, and I couldn’t be happier. Highly recommend!

Bought this amp for my tractor because I love my music and it worked perfectly! Small enought to fit under the seat and push 2 - 6.5 subs and 2- Tweeters._x000D_
Sounds awesome.

This is a power house for the size I am running four 6.5 DS18 loadspeakers and bridge at 4 ohms and I have never had sound this clear and load perfect