Page 1 of 33

Frugal Horn Mk3 builds

Posted: Mon Jan 24, 2011 4:23 pm
by Toppsy
As I mentioned on my Mark Audio CHP70 thread from the latest penned design by DaveD (Planet10) and our much revered Scott (Woden Designs) here is my rendition of the new Frugal Horn Mk3.

I shall be making 2-pr these speakers. One set for the Mark Audio paper cone CHP70 and one set for the Fostex FE126En.

I have made a start on the CHP70 ones and attach some photos of the build to date. One speaker completed in the raw, untreated, Ash veneer ready and awaiting some final stain and oil finish.

I have photographed it alongside my Chillinghams to give perspective.

So one down and three cabinets to go that are in various stages of completion.

It is my intention to bring these along to the next Owston meet.

Posted: Mon Jan 24, 2011 4:24 pm
by Toppsy
Just a couple more photos.

Posted: Mon Jan 24, 2011 5:20 pm
by Scottmoose
deleted

Posted: Mon Jan 24, 2011 5:23 pm
by Nick
Very nice Colin, they look a lot nicer than mine did :-) (doesn't take much). Look forward to hearing them some time.

Posted: Mon Jan 24, 2011 5:50 pm
by planet10
:)

Posted: Mon Jan 24, 2011 5:56 pm
by Toppsy
Dave,

I'll post up some pictures on your Frugal Horn Mk3 beta builds thread on Diyaudio forum when I have both pairs finished.
I'll also post a report on he sound and the differences between the 2 drivers.

For future reference and updating your literature on these speakers, I'll also keep you updated on internal damping used on both pairs.

After Scott's comments that he likes the natural Ash venner I have decided to just finish the CHP70 pair with a clear acrylic varnish. Teak oil and Liberon Finishing oil makes the Ash too yellowish for my tastes and I expect most others.

Posted: Mon Jan 24, 2011 6:00 pm
by andrew Ivimey
I'm looking forward to this, Colin. Yours is a different frugel to the one I have seen. I've attached a picture of what is actually quite radical. And you can add a supra baffle around the speaker driver too.

Which is better, do you think?

Posted: Mon Jan 24, 2011 6:01 pm
by The Stratmangler
Very nice Colin - I look forward to hearing these.

Posted: Mon Jan 24, 2011 6:27 pm
by Toppsy
Andrew,

the Frugal Horns you have posted are the originals (Mk1 or perhaps Mk2) that come in three different builds in degrees of improvements as you go. They can have a suprbaffle or not. I may add a baffle to these pending how they sound and image when I have the other one build and all wired up.

The ones I am building are the Mk3. They are a simpler build and designed to be more flexible with respect to different 3" and 4" drivers they will work with, so they are far more tunable than the originals. That was Scott's aim when he designed them.

There are a couple of threads on the diyaudio forum pages if you are interested:

http://www.diyaudio.com/forums/full-ran ... uilds.html

http://www.diyaudio.com/forums/full-ran ... n-mk3.html

Here are the latest (in development) plans for this new Mk3 design.

http://homepage.mac.com/tlinespeakers/F ... 251010.pdf
Which is better, do you think?
Good question. I think this design may be better. But not having listened to the original I can't really comment which sounds better. This new design has more options with respect to driver selection and looks a little more elegant to my eyes. And most important is easier to build.

Posted: Mon Jan 24, 2011 6:35 pm
by Nick
andrew Ivimey wrote:I'm looking forward to this, Colin. Yours is a different frugel to the one I have seen. I've attached a picture of what is actually quite radical. And you can add a supra baffle around the speaker driver too.

Which is better, do you think?
Yep, that was the one I built.

Posted: Mon Jan 24, 2011 6:43 pm
by Toppsy
It would be most interesting if anyone has a pair the originals, as posted by AndrewI, that they could bring along to the next Owston meet for comparisons :?:

Posted: Mon Jan 24, 2011 6:53 pm
by colin.hepburn
Yep it was the mark 2s with fostex 126E that I would have like to have compared with the mark 3
I am leaning toward the mark 2 being the better due to the different longer folded horn :)

Posted: Mon Jan 24, 2011 7:16 pm
by planet10
The Mark 2 Frugel-horn was still-born. When FE126e was discontinued everything was re-evaluated and Mk3 came of that. I am quite pleased with the result.

dave

Posted: Mon Jan 24, 2011 7:40 pm
by colin.hepburn
It’s the FE126e that I Have which I got with the Mark 2 Frugal horn in mind as far as I am aware the longer the horn the better to a limit The new mark 3 does’t really qualify as a true horn to me this is why I am trying the get a handle on the views of others too which version is best with this driver the FE 126E music mostly blue and jazz some rock :) [/b]

Posted: Mon Jan 24, 2011 8:07 pm
by Andrew
Top job as usual, Colin, how do they sound?