interrconect length when biamping?

rajacat · « **on:** 4 Aug 2007, 11:28 pm »

I'm about ready to biamp my system. I'm I better off having long interconnects and short speaker cables or vice versa?

Raj

macrojack · « **Reply #1 on:** 4 Aug 2007, 11:34 pm »

I would choose the long interconnect approach, especially if they are balanced.

rajacat · « **Reply #2 on:** 4 Aug 2007, 11:37 pm »

Quote from: macrojack on 4 Aug 2007, 11:34 pm

I would choose the long interconnect approach, especially if they are balanced.

They are unbalanced.

doug s. · « **Reply #3 on:** 4 Aug 2007, 11:59 pm »

Quote from: rajacat on 4 Aug 2007, 11:37 pm

Quote from: macrojack on 4 Aug 2007, 11:34 pm
I would choose the long interconnect approach, especially if they are balanced.

They are unbalanced.

i'd still go with the longer interconnects, unless you have abnormal rf noise issues, even if you're using unbalanced i/c's. (unless you're making a run of, say, >50'. then, balanced i/c's would make a difference. which is why balanced is popular w/pro audio gear - they are often making extremely long runs in noisy enwironments.) an amp's interactions w/speakers is almost always greater than a preamp's interaction with amps, therefore, shorter speaker wire is usually more preferable... the only time having a short i/c might be preferable is when the preamp's output impedance is greater than 1/10th the amp's input impedance - this is a bad impedance match, & longer i/c will only exacerbate this problem, usually evidenced by reduced output at the frequency extremes.

doug s.

rajacat · « **Reply #4 on:** 5 Aug 2007, 12:17 am »

Thanks for the replies. I will go with the long ICs . I'll probably buy Blue Jean Cable's LC-1 which they say has very low capacitance, is very flexible and reasonably priced. Anybody have experience with this particular IC?

Raj

Toka · « **Reply #5 on:** 5 Aug 2007, 12:25 am »

I have the Blue Jeans LC-1, and they are fantastic. Extremely well built, one of the best connectors I've ever used, and no solder. They won't 'fix' anything, but won't do anything wrong either. I will differ with others and say that if given the choice, I will always go with short IC's and longer speaker cables, but there are different variables to consider in every application.

rajacat · « **Reply #6 on:** 5 Aug 2007, 12:30 am »

Toka,

I have the Blue Jean Cable digital 75ohm IC which seems to be fine although I haven't had the opportunity to compare it with others.

Raj

WEEZ · « **Reply #7 on:** 5 Aug 2007, 12:53 am »

How long is long?

WEEZ

rajacat · « **Reply #8 on:** 5 Aug 2007, 12:55 am »

Not too long. 6 feet will be long enough for my system.

WEEZ · « **Reply #9 on:** 5 Aug 2007, 01:02 am »

Not an issue either way then, probably.

Normally, if you are driving two amps from the same pre-amp...your pre-amp will see half the load impedence (assuming both have the same input impedence) as when driving just one amp. So short IC's and low capacitance is desireable. It's actually desireable anyway.

But 6 feet shouldn't be an issue for IC's...especially when using the LC-1's or similar.

WEEZ

rajacat · « **Reply #10 on:** 5 Aug 2007, 01:09 am »

I will be using modded Trends 10.1's for amps and a Mapletree line 3A pre-amp.