Frugel-Horn Mk3 - Page 49

ra7 · 28th March 2011, 09:59 PM

Thanks Scott!

Yes, the part about it being more forgiving of different drivers is important.

With my voigt (no 'h'

) pipe, the detachble baffles aren't larger than the front baffle. That cabinet has taken plenty of abuse (just ask Josh) and I'm looking to make this aspect a little more elegant for the FH3.

Scottmoose · 10:54 PM

No problem. I'm not the person to talk to about elegant building though, you don't want to know how bad I am at it.

Scott

mightym · 30th March 2011, 08:29 PM

Quote:

Originally Posted by Bob Brines

I will admit that I am way out of my element, but I would think that anything stuck in a corner will get some degree of horn loading. One of the things I want to try is a corner loaded woofer in a box that simply constitutes the back chamber. In other words a front loaded horn.

Bob

With tongue firmly in cheek, Bob. Wasn't that what your neighbor P.W.Klipsch did lo those many years ago? Sort of.......

John

jemraid · 31st March 2011, 08:23 AM

Hi all,

After reading posts 473 onwards, and hearing a couple of pairs of FH3's. My personal opinion is though the box may not be strictly a horn it certainly has that 'easiness' about it, in abundance.

When coupled with the Mark Audio CHP-70 the sound is lifted from something ordinary [sorry Fostex!] into another realm of audio experience.

Thats just my personal opinion though :-) Those with a sneaky suspicion that I might be right can audition mine, see the list.

Regards - Jim

Merkutio · 31st March 2011, 09:48 AM

Hi guys,
i'm going to build a pair of FH3 with Fostex 126en.
are there substantial differences using woods by 15 or 18mm?

thanks
Giuseppe

Poultrygeist · 31st March 2011, 12:59 PM

Void free plywood is not easy to find at the big box stores here in the States. I went with the cheaper 3/4 inch (19mm) MDF and am pleased with the outcome. Using MDF does result in some heavy arsed cabinets.

kec · 31st March 2011, 01:06 PM

Just curious, what are you guys paying for baltic birch plywood? 15mm and 18mm

I get my 18mm for $32 USD (5'x5')

Merkutio · 01:10 PM

i'll use birch plywood

15mm ( cutted according to the project) 96€
18mm ( cutted according to the project) 126€

Squeak · 31st March 2011, 02:53 PM

Quote:

Originally Posted by Merkutio

Hi guys,
i'm going to build a pair of FH3 with Fostex 126en.
are there substantial differences using woods by 15 or 18mm?

thanks
Giuseppe

If you are going to flushmount a driver 15 ply is probably to thin. But with a FE 126 you are probably not.
If you are talking MDF on the other hand 15 mm is to thin for anything but very small enclosures.

buzzflashlight · 31st March 2011, 03:09 PM

Quote:

Originally Posted by Merkutio

i'll use birch plywood

15mm ( cutted according to the project) 96€
18mm ( cutted according to the project) 126€

Baltic birch ply is best and available in the EU ... I would use the 18mm (cabinets will be heavy). You can also tapper the 'inside' of the driver hole with a router for better fit and sound. Birch ply looks good when stained & polished.

28th March 2011, 10:35 PM	#482
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	No problem. I'm not the person to talk to about elegant building though, you don't want to know how bad I am at it. Scott Last edited by Scottmoose; 28th March 2011 at 10:54 PM.

31st March 2011, 08:23 AM	#484
jemraid diyAudio Member Join Date: Aug 2004 Location: NE Derbyshire	Hi all, After reading posts 473 onwards, and hearing a couple of pairs of FH3's. My personal opinion is though the box may not be strictly a horn it certainly has that 'easiness' about it, in abundance. When coupled with the Mark Audio CHP-70 the sound is lifted from something ordinary [sorry Fostex!] into another realm of audio experience. Thats just my personal opinion though :-) Those with a sneaky suspicion that I might be right can audition mine, see the list. Regards - Jim __________________ Frugal Horn Mk3s Simple illustrated build, Class D XH-M590 TPA3116D2, Evaluation 3116 vs 3886: https://fh3classd.blogspot.com/

31st March 2011, 01:06 PM	#487
kec diyAudio Member Join Date: Mar 2001 Location: SoCal	Just curious, what are you guys paying for baltic birch plywood? 15mm and 18mm I get my 18mm for $32 USD (5'x5') __________________ Former Altec Employee ('78-'82)

31st March 2011, 01:06 PM	#488
Merkutio diyAudio Member Join Date: Jan 2011	i'll use birch plywood 15mm ( cutted according to the project) 96€ 18mm ( cutted according to the project) 126€ Last edited by Merkutio; 31st March 2011 at 01:10 PM.

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28th March 2011, 09:59 PM	#481
ra7 diyAudio Member Join Date: Feb 2009 Location: Davis, CA	Thanks Scott! Yes, the part about it being more forgiving of different drivers is important. With my voigt (no 'h' ) pipe, the detachble baffles aren't larger than the front baffle. That cabinet has taken plenty of abuse (just ask Josh) and I'm looking to make this aspect a little more elegant for the FH3.

31st March 2011, 09:48 AM	#485
Merkutio diyAudio Member Join Date: Jan 2011	Hi guys, i'm going to build a pair of FH3 with Fostex 126en. are there substantial differences using woods by 15 or 18mm? thanks Giuseppe

31st March 2011, 12:59 PM	#486
Poultrygeist diyAudio Member Join Date: Nov 2009 Location: Columbia, South Carolina	Void free plywood is not easy to find at the big box stores here in the States. I went with the cheaper 3/4 inch (19mm) MDF and am pleased with the outcome. Using MDF does result in some heavy arsed cabinets.

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