12 and either a 10 or 15

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jlord16

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Joined: September 08, 2005

Location: Australia

Posted: September 26, 2005 at 12:32 AM / IP Logged

I am currently running a 12" Pioneer TS-W305C subwoffer and i wanted to add another sub to my system. Is there any reason i cant add a 10" Pioneer TSW255C sub or a 15" Sony XS-L151P5 Pentagonal sub, or wuld it be better to stick with another 12" Pioneer. From what i understand, a 10" will giver a higher frequency response and the 15" will allow for lower frequencies then what the 12" can produce. Is there any reason i cant mix sub sizes???

Clarion DB36MP

Infinity Kappa Perfect 10"

Respone 800w Mono

ALPINE MRP-F250

*Custom fabrications*

dwarren

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Posted: September 26, 2005 at 12:39 AM / IP Logged

I would recommned at against running two different sub sizes. You need to locate another identical sub and you may need a different amp accoding to the new ohm load.

jlord16

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Posted: September 26, 2005 at 1:38 AM / IP Logged

I got a 2 ohm stable, 4 x 300watt max amp, with 2 channels bridged into the 4 ohm independant sub. Couldnt i just bridge my other 2 channels to run another 4 ohm 12" sub??? Also wen amplifiers say they put out more at like a 2 ohm load as opposed to 4 ohm (as they wuld with less resistance), do u need to buy a 2 ohm independant sub, or is it to do with the amps wiring as to the resistance??? As most amps have better output with a 1 or 2 ohm load

Clarion DB36MP

Infinity Kappa Perfect 10"

Respone 800w Mono

ALPINE MRP-F250

*Custom fabrications*

stevdart

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Posted: September 26, 2005 at 8:09 AM / IP Logged

jlord16 wrote:

As most amps have better output with a 1 or 2 ohm load

Not true. Although there is MORE output at a lower ohm load, it is not "better". The better output would be with a 4 ohm load or higher.

Yes, you can bridge another 4 ohm sub onto channels 3 and 4.

It has to do with the voice coil wiring, not amp wiring. Once you wire voice coils together to create a load and attach it to the amp, the amp will provide power according to that load. A single 4 ohm voice coil woofer puts a 4 ohm load onto the amp. Anything different than one SVC requires that you wire coils together.

A 4-channel (or 2-channel) amplifier is normally stable at 2 ohms per channel. That means you can bridge a 4 ohm load across two channels and you will be at the amp's limits. Better output, although less, would be with a 8 ohm load bridged...the amplifier would then produce at it's best rated specs (read the specs in the 4 ohm output). With subs, though, powering at 2 ohms is common and acceptable.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

jlord16

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Joined: September 08, 2005

Location: Australia

Posted: September 27, 2005 at 5:57 AM / IP Logged

Ok its at 4 ohm atm, and it gets good clean bass, i was just wondering what other options i had, thanks for the reply, my sub is only SVC

Clarion DB36MP

Infinity Kappa Perfect 10"

Respone 800w Mono

ALPINE MRP-F250

*Custom fabrications*

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12 and either a 10 or 15

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