frugel-horn flat pack; what do you think?

I thought the Fostex Fe126En sounded great in the Frugal Horn Mk3 but the CHBs take the Mk3's to another level. The cut out for the Fe126En is slightly too large for the CHB's so I bought a couple of wooden plaques from Michael's and used them as supra baffles. Those plaques are glued right over the original Fostex cut outs. Excuse the tilted camera.

Currently powering the CHB Frugal's with 2a3 mono blocks. Source is a Node 2i streaming Amazon Music HD into a Khadas Tone Board DAC.

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rogerfederer

Junior Member

Big Wood Studio

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Frugel-Horn Mk3 Kit × 1
Supra Baffle Alpair 7x
 

rogerfederer

Junior Member
getting ahead of myself, but would love any advice re stain. will be plywood, maybe baltic birch but not clear. i like the color @JP used.
 

ejfud

Junior Member
These might be fun to try in the Frugels.

 

MrEd

Senior Nobody
I’m sure he uses a good birch ply, so staining it would be easy. Just be careful to keep glue off the faces that will get the stain. Painters tape at the glue joints can be your friend.
Agreed, and I would add to this I just did some with Gell Stain and is by far the best result on birch ply I have gotten.
 

StevenZ

Pending Gold Star Member
These might be fun to try in the Frugels.

Those sure look a lot like the driver Louis is using over at Omega. Probably the exact same driver actually. Nice find.
 
Those sure look a lot like the driver Louis is using over at Omega. Probably the exact same driver actually. Nice find.
I own two pairs of Omega speakers plus an extra set of drivers. They are all his latest RS5 drivers. These drivers look identical to the Oaktron model. Louis applies his decal to the rear of the magnet (it states 94.5 dB) and some sound deadening material to the rear of the basket. That is not to say that they are the same: The spec sheet lists the driver at 0.73 kg while my own weigh in at 790g. The sheet also indicates the cone is hemp fiber. Louis used hemp in the last iteration of his OEM driver and the latest driver is a proprietary fiber mixture. I know that the OEM versions shared magnet/basket assemblies (Louis offered trade-in for old drivers which he would use as donors for the new cones) with differing cone materials.

Louis started with the Fostex Fe127e, moved to the Fe126e, then to the OEM Hemp driver. That driver was replaced by the current RS5 driver, which looks identical to the linked Oaktron driver. The Fe127e and the hemp driver used identical port alignment and are similar to this driver. The Fe126e driver was essentially a higher Q Fe127e. The current RS5 driver is a drop in replacement for a Fe126e and is of higher efficiency than the hemp driver or either Fostex.

My Omega Super 3s came with Fe126e drivers damped with Mortite around the magnet/basket joint. I replaced them with RS5 drivers from Louis. Right out of the box, cold and with zero break in they outperformed the Fostex in every dimension. Highs were more extended, bass reached deeper, there was added fullness to the sound, and efficiency went up. A member over on Audiocircle reported a similar experience.

The Oaktron driver appears to be a good substitute for the Fe127e and should work well in BR enclosures. A driver with a response similar to a Fe126En would benefit from rear horn loading. I am tempted to try out the Omega RS5 driver in a Frugelhorn MkIII but have order to get rid of speakers before bringing any more inside the house.
 

golana

Junior Member
Didn't see this, use a conditioner. It k÷ps softer wood like birch and pine from over soaking stain. This avoids blotch.
 

rogerfederer

Junior Member
Didn't see this, use a conditioner. It k÷ps softer wood like birch and pine from over soaking stain. This avoids blotch.
something like this? thanks!
 
These Overnight Sensations didn't come with the highest quality plywood but fortunately I tried the Minwax pre-stain wood conditioner on the inside with regular stain over it. The results were not good. I ended up just using a natural stain on the outside and nothing else. I would highly recommend testing the conditioner/stain first on inside pieces that won't show.

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