Amplifier Query

[andy4200]

I'm looking for an amp for the cerb and am leaning towards an Infinity one as I think it will compliment the other Infinty speakers.

It will be used for powering the fronts which are 90W RMS and a sub which will likely be 350W RMS.

I have found some very well priced 4 channel and 6 channel amps but I'm not sure what it's all about.

Would it be better to get a 4 channel and bridge 2 channels for the sub and single channel for the fronts or... go for a 6 channel amp and bridge the fronts also.

Or do I have a clue what I'm talking about??? Not really so any advice would be appreciated

I'm not really after booming sounds, I'm just trying to set up a system that sounds half decent for a reasonable price so I can listen to a cd occasionally.

Thanks

Andy

P.S. How can I change the title to correct my spelling???

>>> Edited by andy4200 on Saturday 24th April 14:50

[mawds]

(remembering big-stereo'd Beetle days..).
No rears? - even so, a six-channel amp will tend to have a dedicated sw channel, meaning there will be an amp stage with better delivery in the bass frequencies, and usually the amp will have an on-board bridge - just wire +ve to one sw channel and -ve to the other.
Bridging two channels into the fronts is probably a bad idea, though, unless you use high-pass and low-pass filters and bi-amp the speakers (infinities may well be good enough to do this with the speakers' own internal filters). ie wire a channel to each driver unit directly, then use the filter to ensure the driver's only getting the frequencies it'll respond to. Works really well on home systems, and nowhere near as complicated as it sounds. Never tried it myself in a car, but should be similar.
regarding amps, don't forget Rockford-Fosgate.

[kojak69]

I've got a quality Genesis Profile 4 amp the in boot. Its got 4 channels, 2 bridged for the sub, and the other 2 for the fronts. Head unit drives the rears.

[dai capp]

I have a five channel alpine amp in the boot, one channel for the sub and four for the squeakers.

The serious hi fi boys (so I'm told) go for a mono amp to power the sub and a four channel (or more) amp to power their speakers...

I have a right old mix in my Cerb, an alpine amp (used to be an xtant until it went pop) CDT rear speakers and front tweeters, Boston mids and a Cerwin Vega sub. So I guess what I'm trying to say is don't worry about the make, if you like the sound buy it.

Cheers

DC

[powerlord]

4 channel is fine.

do you mean your speakers are 80watt rms ? if so, you don't want to stick 80watt rms power through them. Half of that will be fine.

I run a 2 channel 75 watt per channel amp through 6x9 infiniti kappa and it sounds great, but way more power there than is necessary.

I have another 2 channel amp, bridged for an alpine sub.

a 4 channel amp will be excellent for this, just make sure that one side can be bridged, and that if comes with low pass filters for the sub (unless you are planning to do that seperatly).

[SXS]

For the anoraks out there, what frequency range is damaging to glassfibre composition????

Which results in over stressing primer leading to more brittle paint and laquer... something like that anyway...

If you're going big sound, might be an idea to avoid this frequency range.... heard this from an old geeza in my area who owns some wierd looking kit car, like a replica DeTomasoa or something...

[mawds]

mmm, Cerwin Vega sub...
I remember those...

[andy4200]

Thanks for some ideas guys.

Not going for booming sound, just trying to get a bit of quality sound for the odd occasion that it's raining and need the windows up. The booming noise comes from the twin pipes underneath me.

The reason I was thing 6 channel was for either bridging for the sub plus bridging the fronts, or maybe at a later point running the front active with a channel for each mid and tweeter.

Andy