Bi-wire Technics SU-V8?

[a91gti]

I recently picked up a Technics SU-V8 and it appears I can bi-wire from it to my Leaks but I'd like a second or even third opinion.

 

[wizargoz]

Might want to read this thread at DIYAudio:

http://www.diyaudio.com/forums/multi-way/191078-bi-wired-speakers.html

 

[a91gti]

Thanks but that doesnt answer the question dude.

Maybe I should clarify, I want to use both "main" and "remote" speaker outs into one pair of speakers using the single set of banana sockets on those speakers.

Can anyone see problems here?

 

[SoCal Sam]

You cannot create power by bi-wire hookup to a single amp.

 

[whoaru99]

Thanks but that doesnt answer the question dude.

Maybe I should clarify, I want to use both "main" and "remote" speaker outs into one pair of speakers using the single set of banana sockets on those speakers.

Can anyone see problems here?

OK dude, but biwiring is typically coming from one or two pair of terminals on the amp to two pair (typically lows and mid/high) terminals on the speaker.

That said, the only concern I can think of is maybe if the amp puts the main and remote terminals in series. Even then I'm not sure if that creates a problem because it's too early and not enough coffee yet to sort it out in my head.

In my opinion, I'd just use one cable of equivalent wire gauge from the main terminals to the speakers.

 

[SoCal Sam]

The only way to supply your speakers with more power is to add another amp.

 

[whoaru99]

I don't see any mention of adding more power, only of biwiring. Some amps come with two pair of terminals to facilitate biwiring with two separate cables. Using A and B (or main and remote) speaker terminals is essentially the same thing as long as they're in parallel.

What is proposed initally seems like biwiring, but basically it ends up just having two runs in parallel since they're common at the amp end and common at the speaker end. So, even though there are two runs of cable, IMO, it's not really even biwiring.

 

[SoCal Sam]

Yeah, not enough info from the OP. Perhaps he will tell us what improvement he is trying to make.

 

[a91gti]

Yep, not strictly biwiring for sure (I am familiar with the concept having bi-wired in the past).
I was wondering about more power and my feeling it wouldnt work is born out by whoaru99 and his helpful post.
Ta much duders!

 

[a91gti]

Remembering my old Sansui AU919 made me wonder.

 

[SVI2004A]

the V8 is paralell out on A + B

 

[stereofanboy]

If you are speaking of running wire from both A and B on your amp to a single pair of speaker terminals, for some reason that doesn't sound like a good idea. I can't put my finger on the reason why.

If the impedance is lowered to 4 ohms, the amp should make some more power. That kind of depends on how much current it can pass. Some amps just don't have much headroom beyond their 8 ohm rating and some can double down. I have wondered about that for this amps brother, the SU-V9, since I have considered using it with 6, 5, or even 4 ohm speakers.

My AU-919 went into protection after less than an hour of playing through a pair of RS-IIs and it has never been hooked to less than 8 ohm speakers since.

 

[SoCal Sam]

If you are speaking of running wire from both A and B on your amp to a single pair of speaker terminals, for some reason that doesn't sound like a good idea. I can't put my finger on the reason why.

If the impedance is lowered to 4 ohms, the amp should make some more power. That kind of depends on how much current it can pass. Some amps just don't have much headroom beyond their 8 ohm rating and some can double down. I have wondered about that for this amps brother, the SU-V9, since I have considered using it with 6, 5, or even 4 ohm speakers.

My AU-919 went into protection after less than an hour of playing through a pair of RS-IIs and it has never been hooked to less than 8 ohm speakers since.

Impedance at the speaker is not lowered in a bi-wire setup. Each disconnected "half" of the speaker is likely 8 ohm so a single amp doesn't see any change in OVERALL impedance.

 

[whoaru99]

Impedance at the speaker is not lowered in a bi-wire setup. Each disconnected "half" of the speaker is likely 8 ohm so a single amp doesn't see any change in OVERALL impedance.

Right.

Biwire in many respects is basically removing the short jumpers at the speaker and replacing them with long jumpers going back to the amp. The two sections of the speaker are in parallel either way. While there could be small impedance changes just because of the different way of connecting, the overall nominal impedance, in practical terms, really doesn't change.

 

[stereofanboy]

Thanks but that doesnt answer the question dude.

Maybe I should clarify, I want to use both "main" and "remote" speaker outs into one pair of speakers using the single set of banana sockets on those speakers.

Can anyone see problems here?

Aren't speakers designed for bi-wiring wired differently inside than speakers not designed for bi-wiring? If not, what is the point of bi-wiring?

In the OPs case, I read the comment above to mean his speakers aren't designed for bi-wiring.

 

[whoaru99]

Aren't speakers designed for bi-wiring wired differently inside than speakers not designed for bi-wiring? If not, what is the point of bi-wiring?

Yes, generally only inasmuch as the wires for the mid/high and wires for the lows to to separate pair of binding posts and are externally jumpered/paralleled together rather than both connected to just one pair of posts and inherently jumpered/paralleled.

In the OPs case, I read the comment above to mean his speakers aren't designed for bi-wiring.

Right. I think the goal, in the end, was some question of more or improved power delivery by using the main and remote amp connections. The problem there is that main and remote (or A and B) are fed by the same amp channels internally so there is nothing to be gained in that regard.