What amp do I need

I just got my hands on some new rear speakers: Max power: 190W Nom power: 90W Imp: 4 I have no idea what to chheck for when bying my amp. My cdplayer got 4x45w and I doubt that is enough. I thought about buying this amp: Output: 2 x 60 W vid 2 W, 2 x 35 W vid 4 W Max output 300 W Is this enough for my rear speakers?

First thing is, throw the max wattage ratings out the window and don't even think about them. They're useless. You didn't provide any specifcs on brand of amp, speakers, etc, and what type of sound you are looking for, but your cd player head unit ratings are probably max ratings. Your unit probably puts out 10-15 watts rms continuously. I'm sure 60 watts rms would be plenty sufficient to power your rears, especially since they really are only for fill anyway.2004 BMW 325ci.

Alpine CDA-9885

JL 300/4 and 250/1

JL XR 5.25 comps

Infinity Kappa Perfect 12

Yea, that amp would put out 35 watts at 4 ohms (which I'm assuming is what your speakers are). I'd say you have four options. 1) Since they're only rear fill, you could run them mono, But that'd be 2 ohms bridged on that amp, so throw that option out the window. 2) You could run them in stereo, but each speaker would only get 35 RMS. 3) You could run them off the CD player. If it's an aftermarket player, they'd each get ~20 watts RMS stereo. This way you could save the money from the amp, and the power differences woudn't be audible. 4) You could wire the speakers in parallel for a 2 ohm load. Most CD players will support a 2 ohm load on the rear channel bridged (at least mine does: Pioneer DEH-P7400MP) With this sption, you'll get ~35 watts RMS to each speaker. And you have extra money from not buying the amp. I like option #4 the best. Paul

Francious 70 wrote: "4) You could wire the speakers in parallel for a 2 ohm load. Most CD players will support a 2 ohm load on the rear channel bridged (at least mine does: Pioneer DEH-P7400MP) With this sption, you'll get ~35 watts RMS to each speaker. And you have extra money from not buying the amp." I would disagree and certainly not recommend that idea of running a deck amp at 2 ohms. Internal amps on decks are not stable to 2 ohms unless otherwise stated. You will soon be investing in a new deck.

I can't give much more info on the speakers I got 'em from a friend that didn't need 'em anymore. He also had a amp for me if I want to buy one cheap. The same story with this one, he did not provide me with any specs. All I know is that its a Jensen Road Gear: 2 x 125WATT MOSFET: 250 WATT Basbooster 6dB increase Channels: 2 Max Watt: 300 W Input: 1 x RCA Output: 1 x RCA Sieze: 55 x 250 x 200 mm Will this one work with my rear? :)