RE: If we assume

Posted by pictureguy (A) on May 15, 2015 at 12:16:23

In Reply to: RE: If we assume posted by Presto on May 15, 2015 at 10:44:32:

The REFERENCE and starting point is a single channel of amplification and passive speaker level crossover per channel. A very large %age of stereo guys start and STOP right there.

Phase 2 is passive biamp using the speakers internal crossover
Phase 3 is either active or passive Line Level crossove which is where potential benefits REALLY pile up.

I think the 'efficiency' gain of a LL crossover comes from the out of band signals your amps are no longer asked to amplify. This, according to the ESP article, can amount to a maximum of about 3db. Roughly 2x the amp power, compared to the 'passive' biamped system. Given my panels low /mid 80s sensitivity, I'll take every watt I can get.
The drawings in the ESP article which show a HF and LF O-Scope 'trace' clearly indicate that the amp will Voltage Clip at about the same point as a single amp of the same power. I'll go with ESP on this.

I don't think we disagree about going to a Line Level crossover. That is my ultimate goal and the reason I went to a pair of stereo amps for my panels. And since my runs are short, I'm not overly worried about the PLLXO's inability to drive long runs of cable and its internal losses. Since each amp will have its own crossover, it will be locaed right AT the amp. From the crossover TO the amp may require 12" jumpers, certainly nothing longer. I can Duplicate, pretty closely, the crossover which came with the panels. Most of the Active crossovers I've see are high order and not generally to my liking. I'm not equipped to do a major crossover reengineering project for my panels. Most reports I've read say that 24db/octave filters don't necessarily sound 'right', anyway. I'd consider an active LL crossover using opamps, IF I could find a 6db / 12db octave schematic to evaluate.

Too much is never enough

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Follow Ups Full Thread

Topic - Interesting way to wire speakers??? - stevethe4th 16:39:59 05/12/15 (35)

RE: Interesting way to wire speakersÂ??? - stehno 00:14:23 05/14/15 (0)

Here... Every picture tells a... - Presto 13:28:16 05/13/15 (11)

If we assume - G Squared 17:10:07 05/13/15 (10)

RE: If we assume - Presto 21:06:09 05/13/15 (9)

RE: If we assume - pictureguy 23:27:17 05/13/15 (8)

RE: If we assume - Presto 09:21:34 05/14/15 (7)

RE: If we assume - pictureguy 09:49:37 05/14/15 (6)

RE: If we assume - Presto 13:44:50 05/14/15 (5)

RE: If we assume - pictureguy 15:23:21 05/14/15 (4)

RE: If we assume - Presto 10:44:32 05/15/15 (3)

RE: If we assume - pictureguy 12:16:23 05/15/15 (2)

RE: If we assume - Presto 00:02:41 05/16/15 (1)

RE: If we assume - pictureguy 01:00:29 05/16/15 (0)

RE: Interesting way to wire speakersÂ??? - Presto 11:10:34 05/13/15 (0)

Thats single wire, the original idea for Biwiring... - ABliss 10:19:28 05/13/15 (0)

Single! - kavakidd 00:03:13 05/13/15 (0)

RE: Interesting way to wire speakersÂ??? - Caucasian Blackplate 20:19:53 05/12/15 (4)

do you realize.. - cloudwalker 22:39:10 05/13/15 (1)

RE: do you realize.. - Caucasian Blackplate 11:03:26 05/21/15 (0)

RE: Interesting way to wire speakersÃÂ??? - stevethe4th 22:01:29 05/12/15 (1)

Actually - E-Stat 09:24:40 05/13/15 (0)

RE: Interesting way to wire speakers??? - 430cruz 19:28:37 05/12/15 (3)

RE: Interesting way to wire speakersÂ??? - stevethe4th 22:14:55 05/12/15 (2)

RE: Interesting way to wire speakers??? - 430cruz 05:42:02 05/13/15 (0)

RE: Interesting way to wire speakersÃÂ??? - mjcmt 04:41:14 05/13/15 (0)

RE: Interesting way to wire speakersÂ??? - mjcmt 19:17:45 05/12/15 (3)

RE: Interesting way to wire speakersÃÂ??? - stevethe4th 22:10:49 05/12/15 (2)

RE: Interesting way to wire speakersÃÂ??? - SgreenP@MSN.com 04:41:31 05/13/15 (0)

RE: Interesting way to wire speakersÃÂÃÂ??? - mjcmt 04:37:40 05/13/15 (0)

That pic is the same as using a jumper. - Prisoners 18:41:30 05/12/15 (3)

RE: That pic is the same as using a jumper. - stevethe4th 22:08:16 05/12/15 (2)

RE: That pic is the same as using a jumper. - Bill Way 18:01:27 05/13/15 (0)

Bi-wiring by my (and most definitions): - Prisoners 08:35:10 05/13/15 (0)

RE: Interesting way to wire speakersÂ??? - rockanroller 16:58:55 05/12/15 (1)

RE: Interesting way to wire speakersÃÂ??? - stevethe4th 22:08:41 05/12/15 (0)

Follow Ups

RE: If we assume - pictureguy 12:16:23 05/15/15 (2)

RE: If we assume - Presto 00:02:41 05/16/15 (1)

RE: If we assume - pictureguy 01:00:29 05/16/15 (0)

RE: If we assume

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