bi-wiring

[cmenomore]

I have a onkyo tx-nr708 which has 110w per channel and my fronts are RF82 should I bi-wire my fronts?

thanks

[dtel]

No

imo

[SuBXeRo]

bi-wiring does nothing. The only thing that it does do is 1. add more wire and 2. move your parallel point from the binding straps (which are removed) to the pos and neg on the amp.

I'll explain a little if you arent too familar with electrics. That is just simple electric physics, the straps between terminals creates a parallel circuit, which means that the current is split between the 2 points while voltage is "constant" (speakers are dynamic so its "constant"). If you run two wires from your one amp channel to the speakers (without binding straps), the binding straps would theoretically be at the amp, you are immediately dividing up the current instead of waiting for it to get to the speaker and diving on the binding straps. Make a note, since the circuit is prarallel in either case, the load on the amp is still the nominal 8 ohms. I just called klipsch and talked to them about bi-amping.

You can bi-amp klipsch speakers by removing the binding straps and using 2 separate channels from your amp to drive the speaker. You do not have to remove the internal crossovers. The tech support guy said that both the high range and low range drivers have a nom imp of 8ohms. Impedence is dynamic as well and changes constantly so i dunno how it really works where you can have a nominal 8ohm speaker, split up the drivers and still have an 8ohm load. He said they designed them to work like that. He said really in any case, if you have an ext amp, it wont matter, if your receiver has a bi-amp function that can help. This whole convo was around rf-5's but there are many many bi-ampable klipsch speakers. This is off what you were saying but i thought i'd include it You have rf-82's, if your receiver offers a bi-amp option, it will most likely help you out !

[pzannucci]

If you bi-wire with the same wire, you will likely hear no difference. If you bi-wire with two different types of wire, you can slightly alter the sound and balance of the speaker though you will likely spend a lot of money on swapping wires searching for the holy grail which might not exist. Speaker wire and interconnect changes are for the last tiny percentage of sound quality (change) in the system for typically the most money spent.

[nezff]

Ill make you some biwire cables.

[cornfedksboy]

You would likely see some benefit from bi-amping the RF-82s. I believe the 708 allows you to do this by using the rear surround terminals or perhaps the front wides. Then you have to configure your system as "bi-amped." It tells you all of this in the manual.

[Guest " "]

Assume that the bi-wiring involved highly stranded wire for the HF and high gauge low stranded wired for the LF. The evidence does not support the theory.

The theory is that since high frequencies are more prone to skin effect and are likely only using the surface of wires as a conductive path, that small strand wires would provide more conductive mass for them.

For low frequencies, the theory is lower frequencies are not effected by skin effect and as a result use the total mass of the conductor not just the surface.

The problem is no one agrees what frequencies are high and low....most folks believe high frequency as it relates to skin effect has an implication above 50Khz......way above the audio band.

The other area of disagreement is how long of a run would this really be an issue???? 10ft or 1000ft???

So why/when should you bi-wire? Well if you have a 100ft roll of 16 guage wire and want to use it, if you bi-wire, your effective wire gauge now is closer to 14 gauge. But if you are currently using 12 gauge, for short runs, there is no real benefit in increasing you effective wire gauge size. When we talk about wire gauge benefits it's more about current because of distance than it is about warmer sounding vs creamy sounding.

aq_cable_theory.pdf

[nezff]

Most of my customers know there is no benefit from biwiring, but they like the look of it on the speaker end. I think most people do it for aesthetics.