36" THT Low Profile, Warning lots of coffin pictures

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Scott Brochu
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Re: 36" THT Low Profile, Warning lots of pictures

#16 Post by Scott Brochu »

Should be called the coffin. :loler:
Nice work.
Drumming is a way of life.
ME LIKE TO HIT THINGS!
http://billfitzmaurice.info/forum/viewt ... 26&t=11232

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#17 Post by El dillo »

:lol: it surely look like a coffin...

Routed some bevels
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And some painting
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It´s really matte black... when it dries.

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#18 Post by El dillo »

Hopefully today after two coats of paint i will do some testing and measuring :hyper: :D

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DJPhatman
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#19 Post by DJPhatman »

El dillo wrote:Hopefully today after two coats of paint i will do some testing and measuring :hyper: :D
Hopefully, you did horn path leak testing before painting.... :bash: :slap: :chainsaw: :loler:

Nice build, BTW.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#20 Post by El dillo »

Hopefully, you did horn path leak testing before painting.... :bash: :slap: :chainsaw: :loler:

Nice build, BTW.
Yes, as good as i could with a shorter piece of tube.

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DJPhatman
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#21 Post by DJPhatman »

El dillo wrote:Yes, as good as i could with a shorter piece of tube.
Should be all you need. 10V@20Hz will really show even the slightest of air leaks.

Please do the forum a small favor and fill out your location in the User Control Panel, located in the top right hand corner of every page.

Are you going for that glossy, piano black finish? I can only dream of being able to do a finish like that.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#22 Post by El dillo »

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Some garage measurements...
REW and calibrated UMIK-1

No expert so i apreciate tips on how to do this right...

THTLP on saw horses 1,5m from walls - mic exact infront of mouth, Volts... don't remember (very low).
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THTLP on saw horses 1,5m from walls - mic 1meter infront of mouth, Volts... don't remember (very low).
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I also did some dB meter readings (not calibrated)
THTLP on saw horses 1,5m from walls - mic 1meter infront of mouth

@ 5 volts
50hz @ 95 dB
40hz @103,9 dB
30hz @ 99 dB
25hz @ 95,1 dB
20hz @ 93,4 dB

@ 17,3 volts (max output from amp)
40hz @ 113,9 dB
32hz @ 112,1 dB
Sweep 10-100hz peaked @ 117,4 db

will try to do some measurements in livingroom corner loaded later.

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Bill Fitzmaurice
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#23 Post by Bill Fitzmaurice »

Measure with the subs on the floor, against the wall, and the mic an inch above the floor. You'll still have peaks and valleys, caused by room reflections.

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#24 Post by El dillo »

Ok, will try that instead.

Rich4349
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#25 Post by Rich4349 »

Bill Fitzmaurice wrote:Measure with the subs on the floor, against the wall, and the mic an inch above the floor. You'll still have peaks and valleys, caused by room reflections.
Against the wall, as in mouth facing the wall, standard use position? Then place the mic between the mouth and the wall?
2 DR250s, 2 27" Lab15 T-60s, 2 30" Neo Titan 39s, 1 Autotuba...and looking for more!

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#26 Post by El dillo »

With mouth 18" from wall facing wall or mouth facing along the wall?

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#27 Post by El dillo »

OK... :? Its huge and space is tight :(

Let's see how it ends... :cowboy:

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Bill Fitzmaurice
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#28 Post by Bill Fitzmaurice »

Rich4349 wrote: Then place the mic between the mouth and the wall?
Only if that's your usual listening position. :shock:
If you're taking indoor measurements what matters is response at the listening position with the speakers placed where they give the best result.

El dillo
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#29 Post by El dillo »

Thanks got confused Indoor/outdoor :noob:


10-150hz sweep, mic @ listening position and horn cornerloaded
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Stratispho
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Re: 36" THT Low Profile, Warning lots of coffin pictures

#30 Post by Stratispho »

El dillo wrote:Its huge and space is tight
:loler:
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