Bi-wiring compared to jumpers.

[bodiezaffa]

I know the conversation to bi-wire or not to bi-wire has been discussed here many times. Ive read through pages of comments and opinions - all good posts.

My newly acquired SF Amati Futuras have 4 binding posts for bi wiring/bi amping or single run with jumpers.

As these are my 1st speakers ever with 4 binding posts, Im curious to know if anyone has chosen to use jumpers and a single run of cables instead of bi-wiring.

Also, if you have chosen the jumper route, how important is it to use the same cables brand for them?

Looking forward to reading the replies.

[audio bill]

A few generalities I can provide, but of course every situation is unique so YMMV applies. When using jumpers the same type of cable can be beneficial but is not required. I have found that using a single pair of higher quality cables and jumpers will often outperform a pair of lower quality cables. A final suggestion is regarding the connections if you choose to try a single pair of cables with jumpers. Instead of wiring both the positive and negative ends of the speaker cable to either both high or low inputs, try to connect them diagonally with the negative to the high and positive to the low inputs. Electrically this connection seems the same in that both positive connections are made to the positive speaker cable and likewise for the negative, but it provides a more symmetrical signal path for each leg. It can sometimes be a subtle difference but can improve the resulting performance. I know of some cable companies that recommend such a diagonal connection scheme using jumpers, even saying it can sometimes outperform two pair of cables. Just use caution making connections so that you don't inadvertently connect any positive and negative connections!

[bodiezaffa]

Hi Bill.
Right now with my single run, I've got the positive on the upper tap and the negative on the lower with the SF OEM connectors attached.
Your suggestion is to reverse that setup. I will try that tomorrow. Id like to try it right now but I think my family wouldn't be too happy with me firing up and auditioning the changes while everyone else is sleeping.

With regards to the jumpers (and excuse my ignorance) you use 2 with each speaker.
Am i crisscrossing them the same way ie: top left tap to bottom right tap and top right to bottom left?

[BlueFox]

Originally Posted by bodiezaffa

As these are my 1st speakers ever with 4 binding posts, Im curious to know if anyone has chosen to use jumpers and a single run of cables instead of bi-wiring.

My guess is most use a single run and jumpers versus bi-wiring. No data here, just a feeling. I replaced the jumper on my Aerial Acoustics 7T with a Shunyata jumper, and was open mouthed with the improvement.


--------------------------------------------

Lumin S1
Sony XA5400ES SACD
Pass XP-20 pre, X600.5 amps
Magico S5 speakers

Shunyata Triton v2/Typhon for source, Cyclops v2 (2) for amps
Shunyata Z Anaconda XLR analog ICs, Z Anaconda speaker cables
Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables
Revelation Audio Passage Cryo-Silver Reference DB-25 umbilical power cable

Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
Three 20 amp circuits.

[bodiezaffa]

Originally Posted by BlueFox

My guess is most use a single run and jumpers versus bi-wiring. No data here, just a feeling. I replaced the jumper on my Aerial Acoustics 7T with a Shunyata jumper, and was open mouthed with the improvement.


--------------------------------------------

Lumin S1
Sony XA5400ES SACD
Pass XP-20 pre, X600.5 amps
Magico S5 speakers

Shunyata Triton v2/Typhon for source, Cyclops v2 (2) for amps
Shunyata Z Anaconda XLR analog ICs, Z Anaconda speaker cables
Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables
Revelation Audio Passage Cryo-Silver Reference DB-25 umbilical power cable

Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
Three 20 amp circuits.

Thanks BlueFox. From what Ive been reading, it seems to be the preferred choice.

How you liking your Aerial Acoustics 7T's. I bet you're loving them. I clearly remember all the publications writing glowing, glowing and glowing reports of your speakers when they 1st showed up at the audio shows.

[audio bill]

Originally Posted by bodiezaffa

Hi Bill.
Right now with my single run, I've got the positive on the upper tap and the negative on the lower with the SF OEM connectors attached.
Your suggestion is to reverse that setup. I will try that tomorrow. Id like to try it right now but I think my family wouldn't be too happy with me firing up and auditioning the changes while everyone else is sleeping.

With regards to the jumpers (and excuse my ignorance) you use 2 with each speaker.
Am i crisscrossing them the same way ie: top left tap to bottom right tap and top right to bottom left?

With the diagonal connection scheme, as far as which (+ or -) goes to the upper connection is debatable, I've seen recommendations both ways. If I recall Nordost suggests positive to the bottom while Audioquest is the opposite with negative to the bottom. Now for your next question - DON'T crisscross the jumpers!!! The jumpers are still connected between the two positive and the two negative posts, ONLY connecting same polarity. It's just the speaker wire connections to the speaker which are diagonally connected. If your jumpers are 'directional' you should to connect them so that the current flows from where the speaker wire is connected to the other SAME polarity post. I hope this helped to clarify things, if not please ask. I don't want to have anyone blowing up their amps from possible shorted outputs!

[Kal Rubinson]

Originally Posted by bodiezaffa

Right now with my single run, I've got the positive on the upper tap and the negative on the lower with the SF OEM connectors attached.
Your suggestion is to reverse that setup. ..............................................

C'mon guys. It is an AC signal. How can this possibly make any difference at all?

[BuffaloBill]

Originally Posted by Kal Rubinson

C'mon guys. It is an AC signal. How can this possibly make any difference at all?

According to this article there are no benefits to bi-wiring.

http://www.achievum.eu/bi-wiring.html

[audio bill]

Well OK then, it's been decided!

[djwhog]

wow

The Topic that Keeps on Giving Clark!

That it is Edward!

paste this link
sound.whsites.net/bi-amp.htm#bi_wiring

It the above No it is not is true then how the heck do crossovers and the wiring with in then work...