Subwoofer Amplifiier help

[hardflex]

My son's car has blown out 2 Amps driving the subwoofer in 1 1/2 years! The amps are driving signal from a 4 channel system with no amps on the normal channels, so I don't think the bass amps are being over driven. It's single speaker bass woofer with a 10" or 12" speaker that was supplied with the first amp as a set, the brand was Lighning Audio. The second amp was recommended and installed by Car Toys here locally, it only lasted about 3 months.

I want to get him another for a gift but I want something that will last, without spending big bucks. No 1000 watt megamonsters, just something that will fill out the sound relliably. Any recommendations?

[dhoward]

Sounds like impedance mismatch.
Make sure the impedance of the speaker is within specs of the amp.

[CamB]

Amps blowing is an odd one - it usually isn't a problem. Is it getting too hot? Usually they just shut down for a while if they do.