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Old 29th January 2010, 06:10 PM   #11
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Six LabHorns will do a great job ... the job they were designed to do. There is nothing louder & lower & smaller & lighter. Most people don't need six LabHorns, and building one LabHorn is a waste ...

... and Bill Fitz has nothing that compares.
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Old 30th January 2010, 02:31 AM   #12
djk is offline djk
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"and building one LabHorn is a waste ... "

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Old 30th January 2010, 03:48 AM   #13
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The lab horn is a careful balance of compromises. Wayne Parham designed a competitor which is bigger and has less of a need for multiples. If you want deeper and louder then be ready for MUCH BIGGER! You might consider tapped horns, and a lot of them. You start with a design that will meet the extension requirement, then use multiples til you reach the target.
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Old 31st January 2010, 04:15 PM   #14
iand is offline iand  United Kingdom
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Quote:
Originally Posted by oublie View Post
Requirements are everything heres the lab12 up against the Bill Fitzmaurice Tuba Home theatre both corner loaded. The lab gets higher spl from a single cab but the tuba goes a lot lower.

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And just how much maximum output will the Tuba have around 30Hz, when it's operating as a sealed box?

An extended LF response is pointless without the output capability to use it.
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Old 3rd February 2010, 02:16 AM   #15
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Hi there: Just checked the Bill Fitzmaurice web site: He has posted a newer version Tuba Home Theater, Tuba 36-inch. The posted spl curve removes the dip in the "smaller" 24-inch wide version. The 36 is shown with a flatter response below 40-30 hz and goes much deeper.
...regards, Michael
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Old 3rd February 2010, 03:17 AM   #16
jbell is offline jbell  United States
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iand:

Another thought.
wonder if the 2 subs were tested in the same corner?

Indoor measurements mean nothing. I've been burned by that trick before.....
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Old 3rd February 2010, 05:00 AM   #17
djk is offline djk
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Actual measurement of BFM cabinet:

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vs claims:

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Old 3rd February 2010, 06:22 PM   #18
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Here's a GIF of the first LabHorn drawing released by Tom Danley. If anyone's interested I have 60K of selected posts of early LabHorn material.
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File Type: gif TomsHorn.gif (32.4 KB, 436 views)
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Old 3rd February 2010, 06:52 PM   #19
MaVo is offline MaVo  Germany
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Is the measurement in room, or does the ripple come from a too small mouth? Anyway... it looks like the official measurement is rather optimistic about its performance.

Btw, djk... i think you said on a different forum something about which fs is ideal for a tapped horn tuning and came up with a pretty exact number for it. Could i ask for a short explanation of it? (Dont want to steal the thread though).
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Old 3rd February 2010, 10:51 PM   #20
freddi is offline freddi  United States
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DJK - how's the distortion scale read on that LMS display and at what voltage was it taken?
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