Can D-Class Mono Block Run Two Woofers?
 

First I want to thank you for taking the time to read this and help me out, next I want to tell you that I haven't yet purchased the amplifier for my woofers, I'm in the process of finding a good one to use, now let me jump right into the specifications for my subs.

I have 2 Pioneer TS-W258D4 subwoofers
Duel 4 ohms - 350 Watts RMS Each (Going to run them at a 2 ohm load)

My question is, if I purchase a 700 watt RMS @ 2 ohm D-Class mono block amplifier, is it ok to hook it up to both woofers in series? Or would I need a 350 watt RMS @ 2 ohm mono block amplifier hooked up in parallel?

I'm pretty good with understanding everything but still don't consider myself a pro so just curious.

If I get a 700 watt mono block and run it in series, would it distribute 350 watts to each woofer or 700 watts to each?

Or if I hooked that same 700 watt mono block up in parallel would it distribute 350 watts to each woofer or 700 watts to each?

EDIT: Additionally if I have a 350 watt rms mono block at 2 ohm amp could that distribute 350 watts to each woofer or does it cut it in half when running two woofers off one mono block?

Any advice or help would be awesome, Thanks.

what you want to do is get an amp that is rated at 1 OHM. that will be best.

the amp in you example is a wrong amp for your application since it's 2 ohm rated. also, you are thinking wrong by saying "series". you would actually wire everything in parallel, not series.

power gets devided in half.

Yeah I haven't bought an amp yet, I'm just tossing some numbers around to get a better idea of what I'm going for before I make the purchase.

I do however think you are incorrect when you say that they are 1 ohm or 4 ohm woofers, if you look here at the Pioneer manual specs - pioneerelectronics.com/StaticFiles/Manuals/Car/TS-W258D2_InstallationManual0312.pdf

It shows that my subwoofers can be hooked up to support either 2 ohms or 8 ohms, unless you got those numbers based upon how you wired the woofers. I know DVC is just a way to provide you with more flexible wiring options.

But these subs cannot handle a 1 ohm load, I'd rather stick to specifications rather then try and be careful at a 1 ohm load, I'll just be safe and not test my luck, mainly because the last time I tried playing around I blew up the cheap ass amp I was using haha.

^^no...yuli is right...remember you have two dual 4 ohm subs that are going to be wired to 2 ohms each...so when you parallel those you will get a 1 ohm final load. As he stated, get a 1 ohm rated amp to best drive the subs, you can get a 4 ohm rated amp that delivers 700 watts rms (if you wire the subs in series) but it will be a lot more expensive.

Yeah just looking at some wiring diagrams and noticed that I was wrong by saying that in the previous post.

So this now begs the question I'll wire them up in parallel with an amplifier that can handle a 1 ohm load but should I get a 350 watt rms @ 1 ohm or a 700 watt @ 1 ohm. I'm guessing by saying I need a 350 Watt rms @ 1 ohm because since they are wired in Parallel each woofer will receive 350 watts rms (Which is what I need).

Is that correct?

no You will want an amp that has an RMS rating double the RMS rating of 1 of the subs.

So you are looking for an amp rated at 700 RMS at 1 ohm

Ok thanks, so basically the right amplifier for me is the Rockford Fosgate P700-1BD or something similar.

I don't want to be a pain in the ass but lets say I run it in series/parallel which would give me 4 ohms instead of 1 ohm, would I then still need the 700 watt or would I need the 350 or more then 700? I would assume more power because of the higher impedance.

Just want to keep my shopping options open as wide as possible, it all comes down to the amp I buy but I'd like to price out several at 1 ohm and some at 4 ohms.

with the subs wired to a 4 ohm load, you would then be looking for an amp that does 700 RMS @ 4 ohms.....

Ok thats what I thought but just wanted to make sure.

Thanks for all the help guys, now I got to keep searching to find an amp but at least I'm a little more on the right course.

You never said if you were on a budget or not, but Hifonics new line of brutus amps are getting good reviews and are cheap for the power they output. I suggest reading up on them.