Just a little confused im about to buy a phoenix gold zx475ti amp and not sure what kind of wattage I can get out of the amp using it as a 3 channel instead of as a 4 channel. Can some one tell me how much wattage I woud get from this amp if I ran 2 channels at 4 ohms to power 2 6x9's and the other 2 channels power 1 sub at 2 ohms

Here the spec on the amp:

-4 Ch. 500 watt Titanium Amp. W/Free LPL Remote TI500.4 (PreviouslyZX475ti)
-Dynamic Power (IHF-202): 4 ohm Mono 250 x 2 mono 2 ohm Per Ch. 150 x 4 4 ohm Per Ch.
-75 x 4 4 Channel Power Amplifier
-Increased Power Dead Silent Turn on/off
-TAIM Circuitry Variable Speed
-Fan for Reliable Cooling Better Stability
-Ultra Low Loads (2 Ohms bridged)
-Superbrite Tri-LED Power On 24dB Crossover (HP/LP/BP)with Aux Output
-Variable Crossover Range: 40 to 800Hz
-Dimensions: 16.0L x 9.8W x 2.25H
-Freq Response +/-1dB,20Hz to 20 kHZ
-Signal to Noise Ratio (A-weighted) 100dB
-Max Continuous Bridged Power @ 1% THD 250 watts x 2 into 4 ohms @ 14.4 Vdc
-Max Continuous Power per Channel @ 1% THD 150 watts x 4 into 2 ohms @ 14.4 Vdc
-Nominal Continuous Power per Channel @ 1 % THD 75 Watts x 4 into 4 ohms @14.4Vdc
-Power Rating 18 Watts x 4 into 4 ohms @ 12.5 Vdc

 

What ohm is subwoofer?

 

I haven't decided yet but I was thinking of a 4ohms jl audio 10w3v2 but depending on how much power I can get out of the amp I might get a sub more powerful

 

well you gotta remember the W3 is a dual voice coil sub and that changes everything. If you buy a dual 4 ohm sub then you can either have a sub with combined impedence of either 2 ohm or 8 ohm. If you do a W3 with dual 2 ohm then the sub can be either a 1 ohm or 4 ohm sub. I think for this particular amp you'll want to do a dual 2 ohm sub. What you'll need to do is wire up the voice coils in series then run it to the amp. What happens then is the sub presents a 4 ohm load at the amp, but because the amp is bridged mono it will see the load as being 2 ohm. So sub should be getting 250 watts at 14.4v.

 

so the 6x9's will get 75wx2@4ohms and the the sub will get 250wX1@2ohms if i go with the W3 with dual 2 ohm? is that correct

 

yes at 14.4 volts.

 

CLS2G35, what other 2 ohm subwoofer would you recommend to use with my amp that hits hard and dont require a large enclosure besides the jl audio w3.

 

cls, how many watts would a dual 4ohm sub get?

 

I'll have to get back to you on that ok?