Silly question

Leforge · 01-31-2003, 03:59 PM

Just out of morbid curiousity, what exactly would happen if the jumpers were left on the speakers when bi-wiring? The warning says it could cause damage but I have always kind of wondered what would happen.

Leforge

danger boy · 01-31-2003, 04:02 PM

try it and let us know.

JUST KIDDING!

HBombToo · 01-31-2003, 04:14 PM

You would probably NUKE your AMP. I would not advise it.

RuSsMaN · 01-31-2003, 04:16 PM

Bi-wiring, I don't see why you would have any adverse affects (other than tonal), it should be fine.

Bi-amping, watch the F out : 'She's gonna blow captain!'

Leforge · 01-31-2003, 04:30 PM

No I don't think I'll try it!! Thanks for the answers. I was just curious.

Leforge

Dr. Spec · 01-31-2003, 08:50 PM

Quote:

Originally posted by RuSsMaN
Bi-amping, watch the F out : 'She's gonna blow captain!'

Time to launch a captain's log.

Tour2ma · 02-01-2003, 12:27 PM

I tried both ways when I bi-wired my SRS’s. First, I tried w/o jumpers then w/ them. I ended up leaving them on. Did this because:
- I wanted to be sure at start I had each pair of wires in-phase;
- I did not hear a difference after I added the jumpers; and
- I’m lazy…

howie777 · 02-01-2003, 03:45 PM

Well I believe the warning is because when you bi wire or bi amp with those jumpers in you are basically connecting the output of the amplifier to the output of the amplifier, or in bi amping your connecting the outputs of the amplifiers to each other. Feeding a signal into the amplifier at its ouput is potentially very bad. This could destroy your amp.

Do not keep those jumpers in if you bi-amp or bi-wire. This may not do anything today, but if your stressing your components you may drastically shorten the life span of the amplifier.

Just remember, when a manual says not to do something it is for a good reason.

Tour2ma · 02-02-2003, 07:34 PM

Quote:

Originally posted by howie777
Well I believe the warning is because when you bi wire or bi amp with those jumpers in you are basically connecting the output of the amplifier to the output of the amplifier, or in bi amping your connecting the outputs of the amplifiers to each other. Feeding a signal into the amplifier at its ouput is potentially very bad. This could destroy your amp.

Do not keep those jumpers in if you bi-amp or bi-wire. This may not do anything today, but if your stressing your components you may drastically shorten the life span of the amplifier.

Howie777,

You're bi-wire concerns just aren't well founded.

In bi-wiring a channel both runs originate from the same amp out terminals. You can terminate this pair of wires at a single pair of speaker terminals if you like. The impact is no diferent than if you rewired with a lower gauge wire. Just more wire cross-section carrying the same signal from the same source points to the same end point lowering the wire's impedance. Terminating at separate, jumpered post pairs is the same. The jumpers simply make the paired posts appear to be "one" electrically speaking. Just be sure both runs are "pos to pos" and "neg to neg".

Properly run, bi-wiring with the jumpers on produces no problems, today, tomorrow, forever. I'd say my M1.5t/ SRS set up's 8-years and going strong is proof enough of this.

Bi-amping is a different matter. You bi-amp to provide separate signals to separate drivers in 4-post speakers. Before even considering the prospects of amp damage, jumpers just plain defeat bi-amping's purpose. They must be removed in this case.

01-31-2003, 03:59 PM	#1
Leforge Polkie Member Sales Rating: (0) Join Date: Jan 2003 Posts: 3	Silly question Just out of morbid curiousity, what exactly would happen if the jumpers were left on the speakers when bi-wiring? The warning says it could cause damage but I have always kind of wondered what would happen. Leforge

01-31-2003, 04:02 PM	#2
danger boy Polk Guru Member Sales Rating: (10) Join Date: Jul 2001 Location: Spokane, Washington Posts: 14,082	try it and let us know. JUST KIDDING! __________________ I need a new sig... "Ask not what can your stereo system can do for you, ask what you can do for your stereo" - little ol me

01-31-2003, 04:14 PM	#3
HBombToo Polk Master Member Sales Rating: (1) Join Date: May 2002 Location: Funny Farm"no doubt there" Posts: 5,321	You would probably NUKE your AMP. I would not advise it. __________________ *WAREMTAE*

01-31-2003, 04:16 PM	#4
RuSsMaN Hardcore Member Sales Rating: (27) Join Date: Jul 2001 Location: North Texas Posts: 16,017	Bi-wiring, I don't see why you would have any adverse affects (other than tonal), it should be fine. Bi-amping, watch the F out : 'She's gonna blow captain!' __________________ If you're gonna be dumb, you gotta be tough - when you get knocked down, you gotta get back up - Roger Alan Wade

02-01-2003, 12:27 PM	#7
Tour2ma Old School Member Sales Rating: (1) Join Date: Dec 2002 Location: SE Texas Posts: 9,025	I tried both ways when I bi-wired my SRS’s. First, I tried w/o jumpers then w/ them. I ended up leaving them on. Did this because: - I wanted to be sure at start I had each pair of wires in-phase; - I did not hear a difference after I added the jumpers; and - I’m lazy… __________________ More later, Tour... SOPA-PIAS Taste Good "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD "Death doesn't come with a Uhaul" - Dennis Gardner "Life's been good to me so far" - J. Walsh Stripped down system flooded by Ike (thanks alot motherf----r) ... SDA CRS+ (floaters) - Carver C4 Pre (anchor) - Carver M4.0 (survivor by ~1")

01-31-2003, 04:30 PM	#5
Leforge Polkie Member Sales Rating: (0) Join Date: Jan 2003 Posts: 3	No I don't think I'll try it!! Thanks for the answers. I was just curious. Leforge

02-01-2003, 03:45 PM	#8
howie777 Polkateer Member Sales Rating: (1) Join Date: Jan 2003 Posts: 321	Well I believe the warning is because when you bi wire or bi amp with those jumpers in you are basically connecting the output of the amplifier to the output of the amplifier, or in bi amping your connecting the outputs of the amplifiers to each other. Feeding a signal into the amplifier at its ouput is potentially very bad. This could destroy your amp. Do not keep those jumpers in if you bi-amp or bi-wire. This may not do anything today, but if your stressing your components you may drastically shorten the life span of the amplifier. Just remember, when a manual says not to do something it is for a good reason.

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