View Full Version : Speakers with two connections


Preacher Man
04-06-2008, 09:11
I have picked myself up a technics surround speaker system off ebay to replace my current speakers.

now the front speakers are proper stereo speakers (the amp is linked to a cd player and my ipod too), but they have 2 sets of wire connectors. One 6 ohms and one 8 ohms.

I have never come across two before. whats it for?

Carl_Malibu
04-06-2008, 09:40
I believe its to do with bi-amping, http://www.avforums.com/forums/showthread.php?t=254830

IIRC its about the high and low frequencies being taken by different wires, supposedly to provide a more distinct sound

orbrey
04-06-2008, 10:18
http://www.st-andrews.ac.uk/~www_pa/Scots_Guide/audio/biwire/Page1.html

Basically one set sends signals over a certain frequency to the tweeter and the other set sends those below that frequency to the woofer(s). You can short the two sets of terminals (left -> left and right -> right) and they'll work fine with just one set of wires, or you can wire each set on the speakers to a separate length of cable and join those at the terminals on the amp - the theory is that you'll get better sound that way. I recently biwired my speakers like this, there's not a massive difference but it makes me feel better.

Preacher Man
04-06-2008, 11:29
thanks for the links guys. the analogue electronics are stretching my memory back to my engineer days and the equations for internal resistance!

think i will just run a wire to the high frequency and then a wire between the lf and hf terminals. i probably wont be able to tell any difference anyway...

probedb
04-06-2008, 11:59
Bi-amping and bi-wiring are different. The first will have a separate amp for the highs and one for the lows, with bi-wiring I believe they just have separate runs of cable?

Carl_Malibu
04-06-2008, 12:30
If there are 2 separate connections I imagine it's for bi-amping, might be wrong. But yes, silly audiophile thing tbh.

neeeeeeeeeek
04-06-2008, 12:40
Look on the back of your amp, it may say the impeedance. If is says 6ohm then connect it to the 6ohm terminals and vice versa. Nothing to do with bi-wiring or bi-amping.

This might help.

http://answers.yahoo.com/question/index?qid=20070929130822AAIlF0P

Ghozer
04-06-2008, 12:55
Look on the back of your amp, it may say the impeedance. If is says 6ohm then connect it to the 6ohm terminals and vice versa. Nothing to do with bi-wiring or bi-amping.

This might help.

http://answers.yahoo.com/question/index?qid=20070929130822AAIlF0P

yeah, if it was bi-wired or bi-amped it would state "hi" and "low" for the inputs, not 8ohm and 6ohm.

as the forum nanee-ek linked to says, if you have 4 and 8 on speakers and a 6 ohm amp, link to the 4, if your 6 and 8 and have an 8 ohm amp, link to 8 (obviously).

Its to do with the resistance driven by the cross over inside, since no speaker can be 2 levels (the speakers will be 8ohm, and the cross over will be a dual cross over with a direct pass for the 8 ohm or resistors for the 6 ohm)

Carl_Malibu
04-06-2008, 13:37
Apologies for my ignorance and lack of reading the original post sorry :P

Preacher Man
08-06-2008, 16:02
i went to setup the speakers and it is a high and low frequency connection. seing as there in a system with a dedicated sub woofer should i just wire them up as i would any speakers and bridge the two sets of connections with some spare speaker wire?

Ghozer
08-06-2008, 18:02
i went to setup the speakers and it is a high and low frequency connection. seing as there in a system with a dedicated sub woofer should i just wire them up as i would any speakers and bridge the two sets of connections with some spare speaker wire?

Yeah, that'll be fine ;)