This amp is ideal for intalations whereby space is an issue or can not be compromised. With this amp I replaced an old alpine Amp that was also in the class of small powerful amps. I made a switch and noticed and inmense difference. It was so intense, that I had to dynamat the car panels. I was powering a JL w3 12" on a sealed enclosure and the sound was incredible. The bass was clean and deep- for its size unparalleled. This lasted about 8 months. Unfortunately, the speaker was blown. However, the speaker lasted about 8 years under the old amp that had speaker protection. I then purchased another speaker. I tried an Alphasonic 400 series as a temporary fix. This speaker was also blown out in only 3 days. Apparently, there isn't any speaker protection built in to this device. Also of concern, is that the gain controls are not easily accessible. It is bellow a face plate on the top of the amp that is screwed in. I just dicovered this after consulting with a JL salesperson. Now, I'm in process of trying the RE Audio SEX 12 sub that is favorably reviewed by Sonic consumers. Wish me luck. I guess with proper gain control and the right combination of speakers it is a good little amp. I recommend it, with the exterior device sold separately to control it's volume.
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