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Old 9th December 2012, 06:41 PM   #11
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Originally Posted by Omholt View Post
From what I know also the Danley TH has the phase shift above 100 Hz. I don't think this is the case with Bill's FLH (Tuba HT). Are you sure this is correct?

The Gjallarhorn does have som peaks and resonances. Seems to be the case with all TH designs. Does this happen with FLH as well? I haven't seen any anechoic waterfalls of FLH.
Bill's hand drawn plots of in room response curves make it difficult to know what the cabinet's actual response is.
In general, a good FLH can approach a decade (20-200, 40-400 Hz) of useful smooth operation, while a TH is more limited to 2-3 octaves.

As you can see from the phase and frequency response of the DSL TH and their FLH with roughly the same low frequency cutoff, the TH actually has less phase shift than the FLH in the 20-200 Hz range.

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Old 10th December 2012, 02:26 PM   #12
Omholt is online now Omholt  Norway
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What dimensions are we talking about for a response from 20/25-200 Hz? Two units would be fine.

Wonder if that could be an option to traditional frontloaded box(es).
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Old 13th December 2012, 12:30 PM   #13
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Originally Posted by Omholt View Post
What dimensions are we talking about for a response from 20/25-200 Hz? Two units would be fine.

Wonder if that could be an option to traditional frontloaded box(es).
Dimensions depend on the output level you desire.
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