most will agree biwiring will get you better bass, dynamics, and clarity. I would go biwiring myself. Using multiple spades on top of each other would not be a good idea cause most spades have brass in them which are durable but not the best conductor. Of there are those think all this is nonsense.
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I don't agree that bi-wire is better. This is a myth. Actually it depends on the amp, speaker, and listener. I've heard instances in which jumpers outperformed bi-wiring.
Also multiple spades are unnecessary in the majority of jumper configurations.
Most speaker terminals accept bananas terminations as well so a pair of jumpers with bananas at both ends (or one for that matter) make double spades moot.
I agree with Audiofeil. I own and have owned many different pairs of speakers however never the PSB Stratus Mini's. In my systems sometimes bi-wiring sounded better and sometimes cable jumpers sounded better. Im sure there is a reason for that and once it was explained to me in a technical fashion. Unfortunately Im electronally challenged and did not understand the verbal explanation. I have no doubt that several members of the Audiogon community are capable of giving the explanation. I prefer the bananas on jumpers that have a knob on the back for expanding the width for a nice secure tight fit.
If your system sounds a little light weight, bi-wiring usually will help to get a fuller bodied sound.
I also have found jumpers to surfice, but try connecting the main speakers wires to both sets and listen to which may sound better ( I connect to top and jump to bass).
Bare wire will sound best if that feasible.
In principle biwiring should provide some degree of improvement in accuracy, but subjectively that may not be preferable. See the following threads, especially my posts near the end, in which I provide a technical explanation:
I had been using bi-wire because when I first started with audioquest cabling, it sounded better. I went that way for years, with many different companies, but just recently found that putting in really good cables for a single run easily was outperforming the previous cabling bi-wired. In my mind I think that if the manufacturers made the speaker with two terminals you should bi-wire, but presently, that is just not the best sound for me. (JM Labs Electra 926 speakers)
Unless you find someone with your specific set up or you can borrow the cables you are going to buy with jumpers and bi wire and try them. I would guess more of the time bi wire will sound better, not all the time but most of the time. This is the problem with cables there is no all the time answer.
Whether or not bi-wiring is a benefit or not remains an open debate and I know some speaker manufacturers don't do it because they feel it's a detriment (ala Dynaudio). I've run both bi-wire systems and standard runs, and I'm not sure that I can reliably say that it's always a benefit.
However, the one thing that is important with bi-wiring is that you actually use TWO sets of cables per speaker. If you use a cable that's set up for "internal" bi-wiring, all you're doing is splitting a single run in two somewhere along the way to accomodate a speaker's bi-wire connection. To gain any benefit, you really need two separate runs.
Geez, another bi-wiring myth thread?
Can any of you you who insist that bi-wiring is advantageous please explain to me the physics behind how it is supposed to work?
Can any of you guys please explain to me why the effects of bi-wiring cannot be measured by an audio analyzer or any other test equipment that I am aware of?
Can any of you folks please educate me as to why there is not a single published double-blind test (to my knowledge) that confirms the sonic benefits of bi-wiring?