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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: Re: "Do you get that deep growling bass action with your subs?" ... posted by Dawnrazor on March 26, 2007 at 16:12:20:
yes, I can't see any reason why I wouldn't (use subs with my IIIas) - apart from WAF!! :-))And as to whether adding a sub is an OK compromise ... I think it's better than a compromise!
Sorry, I should rephrase that: adding a *pair* of subs is better than a compromise ... adding *a* sub is certainly a compromise! :-))
A pair of subs means they can sit next to/behind each Maggie so that in effect you now have two extended-range speakers. So imaging is not a problem! They also energise the room more optimally than 1 sub.
You can choose to run the Maggies full-range or you can roll them off with, say, a 12dB electrical slope at 50-80Hz (depending on the Maggies you have). Remember the bass panel has its own acoustic rolloff at low frequencies so you've really got an 18 or 24dB rolloff acting on the lower end.
With my active setup, I believe it's better to roll them off as:
1. It stops poor old Maggie having to extend herself into distortion-producing regions of the magnetic field, at the lower frequencies.
2. It "saves" the bass amp's power from being sucked away by the lowest frequencies - ie. it in effect gives a power boost to the rest of the bass panel.
3. Although I would be feeding the Maggies with a 12dB HP signal, this only affects my bass panels (as the mid and ribbon are driven by their own bandpass and HP XOs). So the much vaunted concept of "making the highs sound nasty" as a result of introducing a HP filter on the main speakers is a furphy, in an active setup.
Regards,
Andy
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Follow Ups
- "If the Rythymik was in with your Maggies?" ... - andyr 20:19:37 03/26/07 (3)
- What the hell is a furphy? - Dawnrazor 23:14:04 03/28/07 (2)
- Re: What the hell is a furphy? - andyr 04:46:32 03/29/07 (1)
- I cut down a tree once with a herring - Dawnrazor 08:24:52 03/29/07 (0)
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