After much thought about the new design I've been working on, I finally decided against a WMTMW, and decided on an MTM with a subwoofer.
The M's are the Dayton RS225. The T is the SEAS 27TBFC.
Preliminary crossover points are 1.4 KHz, L-R 4th order from mids to tweeters, and around 150 Hz from subwoofer to mids.
According to my calculations, either the RSS265HF or the RSS315HF will work out with my current design. The 225 will actually run out of its Xmax before either subwoofer will. I'll probably get the 265 HF as soon as it's available (the subs and S/H are $100 less to Mexico than the 315!!!)
But I'm wondering. Would you do a completely passive crossover for the entire system, or would you add a subwoofer amp to the mix?
So far, the pros and cons I can find are:
Pros - subwoofer amp.
1) Easier load on the amp.
2) Easier crossover design.
3) Higher power rating.
4) Less expensive crossover.
5) Higher sensitivity.
Pros - passive crossover.
1) Complete control over crossover points.
2) No guessing about the upper crossover on the sub.
3) Possibly better sound quality due to better driver integration.
If I can get away with using a completely passive design, I'll probably go that way. I can't imagine trying to do a biamped system with the internal crossover of the subwoofer amp (I'm thinking about using the BASH PE amps).
Do you think a wholly passive approach is feasible?
The M's are the Dayton RS225. The T is the SEAS 27TBFC.
Preliminary crossover points are 1.4 KHz, L-R 4th order from mids to tweeters, and around 150 Hz from subwoofer to mids.
According to my calculations, either the RSS265HF or the RSS315HF will work out with my current design. The 225 will actually run out of its Xmax before either subwoofer will. I'll probably get the 265 HF as soon as it's available (the subs and S/H are $100 less to Mexico than the 315!!!)
But I'm wondering. Would you do a completely passive crossover for the entire system, or would you add a subwoofer amp to the mix?
So far, the pros and cons I can find are:
Pros - subwoofer amp.
1) Easier load on the amp.
2) Easier crossover design.
3) Higher power rating.
4) Less expensive crossover.
5) Higher sensitivity.
Pros - passive crossover.
1) Complete control over crossover points.
2) No guessing about the upper crossover on the sub.
3) Possibly better sound quality due to better driver integration.
If I can get away with using a completely passive design, I'll probably go that way. I can't imagine trying to do a biamped system with the internal crossover of the subwoofer amp (I'm thinking about using the BASH PE amps).
Do you think a wholly passive approach is feasible?
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