Biamping question

[Andy Katz]

Hi everyone,

Here's one that probably gets asked alot, but I didn't see it on
google.

Can you biamp four post speakers using the "A" & "B" outlets on an
ordinary amp or receiver, then turning on the switches for both? Or
will the receiver simply put as much power as it has available into
the "A" (or "B")?

Does the power have to have special bi-amping capability, or do there
have to be two?

TIA

Andy Katz
************************************************** *************
Being lied to so billionaires can wage war for profits
while indebting taxpayers for generations to come, now
that's just a tad bit bigger than not admitting you like
the big moist-moist lips of chunky trollops on your pecker.

Paghat, the Rat Girl

[Kalman Rubinson]

On Thu, 14 Oct 2004 20:19:52 GMT, Andy Katz
> wrote:

>Hi everyone,
>
>Here's one that probably gets asked alot, but I didn't see it on
>google.
>
>Can you biamp four post speakers using the "A" & "B" outlets on an
>ordinary amp or receiver, then turning on the switches for both? Or
>will the receiver simply put as much power as it has available into
>the "A" (or "B")?

You can probably make this connection but it ain't biamping or worth
it. The amp only has two channels which are switched or shared by
the "A" and "B" connectors. Just more wire.

Kal

[Andy Katz]

On Thu, 14 Oct 2004 17:36:31 -0400, Kalman Rubinson >
wrote:

>You can probably make this connection but it ain't biamping or worth
>it. The amp only has two channels which are switched or shared by
>the "A" and "B" connectors. Just more wire.

Of course, I see.

Would that work with a surround receiver?

Andy Katz

[Michael McKelvy]

"Andy Katz" > wrote in message
...
> Hi everyone,
>
> Here's one that probably gets asked alot, but I didn't see it on
> google.
>
> Can you biamp four post speakers using the "A" & "B" outlets on an
> ordinary amp or receiver, then turning on the switches for both? Or
> will the receiver simply put as much power as it has available into
> the "A" (or "B")?
>
> Does the power have to have special bi-amping capability, or do there
> have to be two?
>
> TIA
>
> Andy Katz
To bi-amp you need 2 amps and an electronic crossover. While it is
considered a more effective use of power, the problem IMO is that you're
re-engineering a set of speakers that (hopefully) somebody spent a lot of
time on getting it right. There's no reason to expect that a properly
designed passive xover won't work as well or better in splitting the
frequencies and sending them to their proper drivers.

If you have a powered subwoofer, then you have biamplification.

What you described is bi-wiring which has no proven advantage at all.

[Kalman Rubinson]

On Thu, 14 Oct 2004 23:01:14 GMT, Andy Katz
> wrote:

>On Thu, 14 Oct 2004 17:36:31 -0400, Kalman Rubinson >
>wrote:
>
>>You can probably make this connection but it ain't biamping or worth
>>it. The amp only has two channels which are switched or shared by
>>the "A" and "B" connectors. Just more wire.
>
>Of course, I see.
>
>Would that work with a surround receiver?

You can use unused channels in a multichannel receiver or amp for this
but, still, I question whether it is worth it. The woofer will still
consume most of the power of whatever amp is in use and relieving is
of the tweeter will make little power difference.

Kal

[Alex Rodriguez]

In article >,
says...

>Hi everyone,
>Here's one that probably gets asked alot, but I didn't see it on
>google.
>Can you biamp four post speakers using the "A" & "B" outlets on an
>ordinary amp or receiver, then turning on the switches for both? Or
>will the receiver simply put as much power as it has available into
>the "A" (or "B")?
>Does the power have to have special bi-amping capability, or do there
>have to be two?

No. You can bi-wire that way, but not bi-amp. Bi-amp requires a separate
cross over.
-------------
Alex

[Robert Morein]

"Kalman Rubinson" > wrote in message
...
> On Thu, 14 Oct 2004 23:01:14 GMT, Andy Katz
> > wrote:
>
> >On Thu, 14 Oct 2004 17:36:31 -0400, Kalman Rubinson >
> >wrote:
> >
> >>You can probably make this connection but it ain't biamping or worth
> >>it. The amp only has two channels which are switched or shared by
> >>the "A" and "B" connectors. Just more wire.
> >
> >Of course, I see.
> >
> >Would that work with a surround receiver?
>
> You can use unused channels in a multichannel receiver or amp for this
> but, still, I question whether it is worth it. The woofer will still
> consume most of the power of whatever amp is in use and relieving is
> of the tweeter will make little power difference.
>
> Kal

Seconding Kal, don't bother with this.
There is considerable doubt by many as to whether this arrangement, which is
known as "vertical biamping", can make any difference. Perhaps it can, when
the amplifiers are separately selected for their strengths in amplifying the
treble or the bass.
Not in this case. Don't waste your time.