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Any reason not to go with a Tempest for up to 80Hz? (1 Viewer)

Jack Gilvey

Senior HTF Member
Joined
Mar 13, 1999
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4,948
Is everyone running their Tempest sub up to 80Hz, with the other speaks set to "small", a pretty standard config.? Or is it much better crossed lower?
My Onkyo provides an 18db/oct. low-pass.
Thanks,
Jack
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Patrick Sun

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Joined
Jun 30, 1999
Messages
39,660
Due to my budget receiver, mine is crossed over even higher than 80Hz. Based on what I heard from mine, I think the Tempest will work fine up to 80Hz if you go with this driver.
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Greg Monfort

Supporting Actor
Joined
May 30, 2000
Messages
884
The rule-of-thumb I use is to find the primary breakup mode (major peak near the driver's upper BW limit), and drop back 24dB, to put it near our built-in 'noise floor' for intelligibility, or ~32Hz/1st, 63Hz/2nd, 125Hz/3rd, and 250Hz/4th for the Tempest.
In perusing the Tempest White Paper I notice they feel -20dB from the primary breakup mode is acceptable. Oh well, different strokes for different strokes! :)
My only concern with 80Hz/3rd, is that if the sub is stuck in a corner, there may be some shift between the sub and furthermost main, making the sub position audibly obvious.
GM
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