Running 2 pairs of speakers in parallel

Hi all

Want to ask one question. My amp is 40w p/channel with 2 x sets of speaker output (Speaker A&B ). If I am to biwire it, does it mean that I will be having 80w per channel. Sori if the question sounded silly. Will it sound better and is it alrite if my 2 sets of spk cables are different?

Do you actually know what does "bi-wire" means ?

It's ok, if you're not sure ... then better to say so before you try some funny WIRING methods using that might end up damaging your speakers or amp or both.

Don't worry, no one is going to laugh at you... But just to be sure, lets clarify what do u mean by 40W will become 80W or something, etc etc etc.

Sorry for the confusion. What I meant was since there are 2 spk outputs which can set up 2 pair of spks, does it mean that each spks produces 40W? And if I biwire 1 pair of spks using 2 outputs (with spk B button on), does each spk produces 80W each or still 40W. Hope that is clearer

u wont get 80W. see below...adding another speaker cable is just
to bypass the speaker internal wiring of tweeter and woofer.

amp ------- woofer
|
crossover --- tweeter


amp ------- woofer
|
------- crossover --- tweeter

I thought he meant that there where two output from his amp, not referring to the speaker?

Yup runemaster. Thats what I meant. Using 2 output to a pair of spks

the two output for amplifier is internally shorted. means a pair of binding post but onlu meant for one speaker.my illustration a bit misleading as the image misaligned when published. The message I would like to share is actually the two pair of binding post for amplifier is meant for bi-wiring, means one for woofer one for tweeter. The speaker must have two pair of binding post as well to do the bi-wiring..

Thanks wabun for the explanation. If I were to biwire as u've mention, will there b improvements. Any taiko here is having this set up using both output to run 1 pair of spks. Thanks in advance

Yes thanks to sifu wabun ... u can take it from here ...

wabun wrote:the two output for amplifier is internally shorted. means a pair of binding post but onlu meant for one speaker.my illustration a bit misleading as the image misaligned when published. The message I would like to share is actually the two pair of binding post for amplifier is meant for bi-wiring, means one for woofer one for tweeter. The speaker must have two pair of binding post as well to do the bi-wiring..

but be careful, some amps with the A/B selector switch actually put 2 speakers in series when both A & B pairs are selected. If these kind of output is used for "bi-wire" to the same speaker, might accidentally cause an output short..

Maybe u can help by drawing it out here also ....

my 2 sen..

in the old days before biwiring, people used amps with A/B speaker selector switches to drive two pairs of speakers. Just turn both speaker switches on.

however, this is not commonly practised today. Two pairs of speaker binding posts can be used for biwiring. Simply connect one pair of speaker cables to the tweeter terminals on the speaker and connect another pair to the bass/mid terminals.

but remember to remove the jumper from the speaker terminals. power output from the amp shld be unchanged cos the two pairs of speaker cables are connected in parallel.

as for using different brands of speaker cables for tweeter and bass, you can experiment. but most people advise using cables from the same company, but not necessarily the same model. for e.g. if u use audioquest speaker cables, u can use a lower range for the bass/mid and higher range for tweeter. cables from different companies have different sonic signatures and matching can be a problem if u use, for e.g. a cardas for the bass/mid and audioquest for tweeter.