Re: bi-wiriing and bi-amplification
|
Joined: Dec 2007
Posts: 7,786
axiomite
|
axiomite
Joined: Dec 2007
Posts: 7,786 |
Hey Adrian. According to a long thread on the A500 either on avsforum or audioholics there can be quality issues with the A500.
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
|
|
|
Re: bi-wiriing and bi-amplification
|
Joined: Dec 2008
Posts: 6,928
axiomite
|
axiomite
Joined: Dec 2008
Posts: 6,928 |
Half of communication is listening. You can't listen with your mouth.
|
|
|
Re: bi-wiriing and bi-amplification
|
Joined: Dec 2008
Posts: 1,361
connoisseur
|
connoisseur
Joined: Dec 2008
Posts: 1,361 |
Mike, I didn't really follow the "negating" supposition, but an external crossover(usually electronic)has to be placed prior to the amplifiers so that each amplifier only gets an input of the desired frequency range. Once that is done and the crossover is taken care of, the internal crossover in the speaker has to be removed or at least bypassed by rewiring so that the signals from each set of speaker terminals go straight through to the appropriate driver. Very few home users actually have gone to the trouble of bi-amping, which as Alan has pointed out is of more significant benefit in professional applications involving mega-wattage. I still find it odd that this technology has been around at affordable prices for a long time in the mobile audio side, but remains rather esoteric in the home environment. My Alpine head unit in my SUV has active 3-way parametric crossovers in the digital domain. It is great to be able to change the crossover point from 80 at -12db to 63 at -18 if that works better in your setup, or as you replace speakers. I confess, i leave the passive crossover network in place on my expensive separates just make sure i don't screw it up by accident. Surprised this simple bit of code/chipset has not been dropped into a decent Denon AVR for real use of the 19 amps they are dropping into their AVRs these days. And the speaker companies would love it - just think how many DIY'ers would blow the tweeter across the room seeing if it could handle a 1000 hz signal! It would open a whole new market for replacement parts.
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
|
|
|
Re: bi-wiriing and bi-amplification
|
Joined: May 2002
Posts: 10,654
shareholder in the making
|
shareholder in the making
Joined: May 2002
Posts: 10,654 |
Charles, just a point re amplifier terminology relevant to your "19 amps" comment. A receiver has just one amplifier with multiple output channels. So, despite the terminology in some manuals, a receiver can't "bi-amp", even if some of its 7 or 9 channels(the 19 channels will be in next year's "upgrade") aren't being used otherwise.
-----------------------------------
Enjoy the music, not the equipment.
|
|
|
Re: bi-wiriing and bi-amplification
|
Joined: Dec 2008
Posts: 1,361
connoisseur
|
connoisseur
Joined: Dec 2008
Posts: 1,361 |
No, I fully realize that. I just mean that its a tricky addition to allow people to do custom cross over setups as discussed above. Agreed, it gives no extra power, etc. But you could build a custom speaker and not mess with a complex passive crossover if they had the digital crossover network I'm referring to routed via ch 1&2 - high, ch 3&4 mid, ch 5&6 mid-bass, ch 7&8 bass, etc. And if done in for pre-amp outs, you could set up a true bi-tri-curious configuration.
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire
|
|
|
Forums16
Topics24,969
Posts442,622
Members15,633
|
Most Online2,699 Aug 8th, 2024
|
|
0 members (),
1,146
guests, and
2
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|