Why passive bi amplifying exists???

[TLS Guy]

Yes. The math is easy for them. The increase is not just "more": it's a substantial "2X," or "double". Who wouldn't want "double" the power of their existing amp? Them:"100w+100w=200w, right?" LOL

The math is also easy for the dealers pushing the myth but in this case their math is actually quite correct: Bi-amping/wiring = Bi-profitability.

Because that only increases the output by 3db, which is barely significant. To do what you want means an amp of 10 times the power.

That is why I have 3,200 watts available on my main system, which is what is required to really improve over 320 watts of power.

Buddy, you nead to study the difference between linear and log scaling. Do your math.

 

[highfigh]

Yes. The math is easy for them. The increase is not just "more": it's a substantial "2X," or "double". Who wouldn't want "double" the power of their existing amp? Them:"100w+100w=200w, right?" LOL

The math is also easy for the dealers pushing the myth but in this case their math is actually quite correct: Bi-amping/wiring = Bi-profitability.

But bi-wiring is the byproduct of manufacturers not wanting to lose market share- few dealers had the clout to make that happen by themselves, it was reviewers who BSed the need for it and as soon as dealers on the wider market started asking for it because THEIR brands didn't have this, manufacturers added it to their speakers. At the manufacturing end, it doesn't cost much but if someone did this to their own speakers, it voided the warranty. Very few were going to use a separate amp for HP and LP, but the other culprit in this was Munster Cable, who IIRC, was the first cable seller to push "High and low frequencies travel at different speeds" crap, which we had to deal with. The fact that the cables might have been 25' long didn't seem to matter to people who asked for this, although some understood it after we explained that at that distance, it doesn't matter.

This was also at a time when magazine reviews were adding words like 'Current' and 'Amps (Amperes)' to the vocabulary, so some would come in and ask (often, in a way for them to challenge our knowledge) "How many amps does this put out?". That caused a bit of confusion when I would actually calculate that, showing that the number wasn't very large.

 

[m. zillch]

Because that only increases the output by 3db, which is barely significant. To do what you want means an amp of 10 times the power.

That is why I have 3,200 watts available on my main system, which is what is required to really improve over 320 watts of power.

Buddy, you nead to study the difference between linear and log scaling. Do your math.

You need to re-read my post. Everything in it was actually accurate and you seem to have overlooked the party stating "double the power" was:
- "THEM", not me
- I laughed at their statement with an "LOL"
- and immediately characterized their assessment as being incorrect compared to the dealers' math which is correct, in my very next sentence.

And by the way, when measuring two different amps' power in watts I have no problem with people describing a 200w/ch amp as being "double" that of a 100w/ch. amp. In terms of watts that claim is true, not that passive bi-amping gets you to "200w/ch.".

 

[m. zillch]

But bi-wiring is the byproduct of manufacturers not wanting to lose market share

Providing worthless features is one thing but lying to consumers (interestingly often using nearly the exact same wording) is another.
In that linked to post I said those were "some more" because I had already listed these earlier, by the way:

Polk: "Bi-Wiring can provide noticeable improvements in the overall transparency . . . "
Definitive Technology: "The result is an improvement in the midrange that many enthusiasts believe is significant "
Crutchfield: "A bi-wire cable. . . can improve treble and bass performance. "
Fluance: "How do I use the bi-wiring connections to increase the performance of my system?"
Denon: "Bi-wiring’s advantages are generally considered to be more subtle than bi-amping and center around better control of back EMF (electromotive force) from the speaker drivers and increased definition."
AudioMaxx/Monitor Audio: "Bi-wiring can provide noticeable improvements in the overall transparency"
SVS: "Bi-wiring can provide noticeable improvements in the overall transparency"
B&W, Bower and Wilkins: "Bi-wiring can provide noticeable improvements in the overall transparency"
ELAC: "Bi-wiring can provide noticeable improvements in the overall transparency "