Class D or A/B for top end?

[Syncal1 10+ year member]

Im looking for advice on a new top end set up. I looking for 3-4 channels . I also have around 500-650 per amp. I have read the pros and cons on both amps however paper just doesnt always represent real world findings. Would anyone have experiance with a class D top end amp configuration say Alpine pdx 4x150? I hope to hear some feed back. Oh yeah I will be running 2 sets of Focal 165krx3 active and 2 sets of165krx2 one in kicks and one as rear fill also running active. Thanks or your time.

Anthony

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[AlterEgo99 5,000+ posts]

I have 2 Alpine Class D's (see my sig) as I have limited space and decided to stack them in my center console. I also installed a push/pull fan setup to keep 'em cool. They run warmer than some JL Audio Class D amps I have had in the past but I like them. Again, I selected them for space reasons. I do miss my JL Audio Slash amps but if you are going to go with Alpine amps and especially given the harsh environment of a car, I'd go with amps that run as cool as possible. The only thing I don't like about the Alpine mono is the fact that there is no remote to fine tune the bass...I wish they had that.

 

[rc10mike 10+ year member]

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[mcsoul 10+ year member]

You have plenty of cash, don't worry about class, just get amps that float your boat. Your talking about running 4 sets of comps active? So you'll need four 4 channel amps and you have $500-650 each? Or you are going to run 2 ohm/channel and use two 4 channel amps?

lolurich

If I was looking at doing what your doing, I'd be looking at the new Soundstream REF 4 channels off fleabay, they

may be a little to cheap for you though lol.

 

[freshbondoscent 10+ year member]

to do as you say you would need a min of 6 channels unless you dont like to have fade.

 

[dB-r 10+ year member]

I would not do Class D on highs/mids unless forced to by space constricts.

Class AB all the way. Screw those PDX amps... I worked on one, once... LOL, that was the last time... they work great but I question the ability of Class D full range to actually "sound good". Regardless of what an RTA might say, just don't sound right to me.

 

[Syncal1 10+ year member]

Space is some what of a question. I'v done away with the focal avenue. I will be running Hybrid Audio Legatia L8L4L1 pro 3 way's to start with. After their in maybe L4 and L1 pro's in kick's that all depends on how well the 3 way system sounds to me. I'm not an spl person but I do like my music loud with thunderous bass haha. Thanks for all of your input.

Anthony

 

[lyttleviet 10+ year member]

IMHO I would revisit the KRX 3 way set. It is impressive.

 

[DBBOOM 10+ year member]

http://www.zedaudiocorp.com/techtalk.html Talk to Steve he has a line of amps that would be perfect for what you are describing. Small, powerful and in your price range.

Here is his E-mail also: zedaudio@aol.com