CT-400.1D Compact Class D Car Audio Monoblock Amplifier, 400 Watts RMS

Great amp at any price. I've had this amp for several months now. I have been using it to power 1 Alpine bassline 10-inch subwoofer. I listen to my music loud and have the gain turned up so it thumps hard. My commute to work is about an hour long every day, and it hasn't given me any issues at all; it doesn't even get hot.

I matched this with a shallow Ct sounds hydro 10in and installed in my Kenworth dump truck. Build quality is excellent and it packs a punch for its size. I had to buy the smallest 10in box I could find because I’m limited on space but it powers the sub very well. I have it on the floor which gets pretty hot to the touch from the transmission right underneath and the amp hardly gets warm after continuous hours of listening. Sound quality is great for me I used a o scope to set gains and couldn’t be happier with my purchase. Time will tell and I will report back this winter since I seen some issues with it not working in the cold.

This little Amp is no slouch, can't belive its 400 watts! Been doing car audio for quite some time...and this amp for the price is amazing. The build quality is definitely on point, its definitely got some weight to it. very small and compact can go just about anywhere. It's definitely a little power hungry...I almost regret not installing 1/0 gauge power cable and just using reducer at the amp but it's only 400 watts. Got this running 2 CT tropo 6.5s at 1 ohm and the overall setup DOES NOT Disappoint! My only Gripe (or Gripes) would be the bass knob is trash. Very cheap lightweight plastic, I feel like if you just look at it wrong it will break. I didn't even mount the knob because I'm afraid a Tab would bust off while screwing it down. It also has a power LED on the knob which is a blinding blue...I can't even look at it straight on with out it leaving a weird blue fuzz in my eyes for an hour. Other than that, awesome amp, awesome price...I look forward to getting another and strapping them to 4 6.5s 👍

First received a used unit that was missing pieces. Processed an exchange and it was delivered 24 hours later. Works great and sounds great.

Does pretty good with the 8in ct hydro I have it powering. I have no idea what others are talking about on how it doesn’t work under a certain temperature. It was around 20 outside when I wired it up, instantly worked, it was under 20 this morning when I started my car and it worked just fine. I’m used to loud subs so it and the sub don’t really fit what I’m wanting in the long run, I think I should’ve ordered the 2ohm hydro instead of the 4 so I could’ve wired it for 1ohm instead of only being able to drop to 2ohm to get more of what I’m wanting, but for replacing the factory sub and amp with this amp and the 8in hydro, it’s definitely worth the money Id think so I’m not upset. I’d buy again.