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In Reply to: RE: You'll need a crossover, e.g., Marchand posted by Jay Buridan on May 18, 2012 at 17:16:27
...that is, continuing to use the crossovers in the speakers.
If he wanted to actively biamp, he'd also have to determine how to bypass the crossovers in the speakers.
Of course, we're all smart enough to know that one doesn't combine an active x-over driving the amps AND the passive crossovers in the same speaker.
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Tin-eared audiofool, former fotografer, and terrible competitive-pistol shootist.
"Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted." Albert Einstein.
Follow Ups:
What would happen if you sent low frequencies to the low passive posts and the already separated mids/hi to the top passive binding posts?
Steve
...and lowering the lo-pass point (compared with the probably-carefully-chosen FPs the designer effected), thereby creating a substantial dip in output around the FP(s). Also, the the filters' slopes would be additive, so if the passive x-over had two 2nd-order slopes and one used 2nd-order slopes in the active filter, one would end up with 4th-order slopes--in addition to the 'hole in the middle'.
Of course, one could in the active filter use 1st-order slopes so as NOT to add much filtering and set the filterpoints 2 or 3 octaves away from the passive FPs so as to reduce the negative effects of double filtering, but then why bother? One would have gone to the cost and effort of buying the filter, cables, and maybe the extra amp(s), suffering the negative sonic effects of the active filter--and they ALL have negative effects--only to end up with still-bad double filtering.
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Tin-eared audiofool, former fotografer, and terrible competitive-pistol shootist.
"Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted." Albert Einstein.
Since the amps won't be identical he will need a way to adjust gain.
...is perhaps the last device I'd add to do that.
The first device would be a level control added to the higher-gain amp.
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Tin-eared audiofool, former fotografer, and terrible competitive-pistol shootist.
"Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted." Albert Einstein.
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