Which high power 4 channel?

[DejaWiz 5,000+ posts]

^ higher damping factor doesn't denote a better amp when both amps have a fairly high df to begin with. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

http://www.classic-audio.com/marantz/mdampingfactor.html

 

[Simek4life 10+ year member]

the kicker zx 850.4 that i have gets my components loud as ****

 

[DejaWiz 5,000+ posts]

Good suggestion. I really like the ZX850.4 amp.

Wish I could find one for like $10, since that's about all the disposable income I have right now. LOL

 

[dylnger 10+ year member]

This is true. I miss spoke on the damping factor of the pdx, it is about 80. A quote from car audio mag"Listening to several tracks with some bass beat, like Yello’s “Oh Yeah,” continued the clarity theme, but revealed less-than-perfect control in the bottom end. It is my opinion that this is due to the lower damping factor of this amp, like any Class D amp. Remember that damping factor is a calculation of output impedance to load impedance and higher is better, at least up to 300 or so".

 

[squeak9798 5,000+ posts]

The arc 4150 would sound much better and louder. The damping factor on the arc is over 1500 and I beleive around 200 for the pdx.

Damping factor is a completely meaningless spec when comparing most solid state amps.

Birth sheets on a 4150 typically show 180 to 190 watts per channel at 2ohms and that is real power not hype.

The PDX 4.150 have been benched to output just shy of 500w x 2 @ 4ohms bridged....which would work to be just shy of 250wpc @ 2ohms "real, non-hype power"

A quote from car audio mag"Listening to several tracks with some bass beat, like Yello’s “Oh Yeah,” continued the clarity theme, but revealed less-than-perfect control in the bottom end. It is my opinion that this is due to the lower damping factor of this amp, like any Class D amp. Remember that damping factor is a calculation of output impedance to load impedance and higher is better, at least up to 300 or so".

And the funny part is they didn't provide any evidence to support their claims.

Which makes it completely irrelevant and frankly, unbelievable.

 

[Flipx99 5,000+ posts]

I like the digital designs S4a.

Small footprint, 200x2 and 100x2...great for an active setup.

Plenty of power where you need it and much less where you don't.