diyAudio

diyAudio (https://www.diyaudio.com/forums/index.php)
-   Full Range (https://www.diyaudio.com/forums/full-range/)
-   -   Frugel-Horn Mk3 (https://www.diyaudio.com/forums/full-range/172605-frugel-horn-mk3.html)

canonken 23rd April 2021 12:56 PM

Thanks.

The kit I have is PLENTY loud, so I think the FH3 is fine there. Just becomes a question if the FH3 gives me more bass, refinement making that upgrade worth the cost.

Dave, I 100% intend to get new drivers, and always wanted to try Markaudio, or anything the group suggests. You seem to suggest a big improvement.

Also, I do have bigger towers, so I can get a bass fix with a swap.

Thanks!

canonken 25th April 2021 02:31 PM

As it relates to Bob's flat pack kits - can someone help me understand the regular vs. Supra-Baffle design? Is this a separate plate the driver mounts on that allows easier removal/swapping of drivers? Any images of what it looks like when built? Any reason I would NOT want this option (other than I think it might look 'ugly')?

Scottmoose 25th April 2021 02:39 PM

There is no additional suprabaffle that I know of for FH3 per se. At least, I haven't designed one. Suprabaffles are usually enlarged sub-baffles added to the front of an enclosure to either lower the step-loss frequency, modify the diffraction signature, or some combination of both. FH3 being a boundary loaded design took those into account in the design stages, so none is really required from an acoustic POV. Some kit producers however, provide a removable sub-baffle to fix to the front baffle to facilitate driver-rolling, which can be useful.

bobberner 25th April 2021 03:48 PM

2 Attachment(s)
Quote:

Originally Posted by canonken (https://www.diyaudio.com/forums/full-range/172605-frugel-horn-mk3-post6631146.html#post6631146)
As it relates to Bob's flat pack kits - can someone help me understand the regular vs. Supra-Baffle design? Is this a separate plate the driver mounts on that allows easier removal/swapping of drivers? Any images of what it looks like when built? Any reason I would NOT want this option (other than I think it might look 'ugly')?

Hi Ken, I will not argue with the experts here. but I can provide photos of my prototypes with the supra baffle that I make. I believe the best reason to get the SB is to allow for swapping out drivers easily and quickly. And as a "custom or boutique" builder I can really make just about anything you want. Here are photos of my FH3 and FHXl with supra baffles.

planet10 25th April 2021 03:52 PM

1 Attachment(s)
The supraBaffle is an option to allow easy change of drivers.

Few have been implemented, and we in th eend settles in somethign simple a son these FH-Lite.

https://www.frugal-horn.com/images/FH-Lite-protosS.jpg

If you donít like the stepped baffle you can make the supraBaffle cover the entire baffle.

The suraBaffle idea finds its populaization with the Cain & Cain horns and was to provide a more consistent wave launch. This idea evolved into shapes more minicing the B&W Nautalus midrange pods for minimum edge diffraction and at one point many shapes were tossed out.

Here an example using flat bits to approximate a tear-drop in one of Scottís more exotic BVRs.

https://www.diyaudio.com/forums/atta...1&d=1619365896

dave

canonken 25th April 2021 04:03 PM

Perfect, thank you both! That is what I thought, but wasn't sure.

I think I would get that option simply because it is easier to swap and get access to the internals if I wanted to mess around.

canonken 25th April 2021 05:03 PM

1 Attachment(s)
This would be the only 'custom' thing I would want to do vs. a standard plastic input terminal. Any concerns? 4x4" plate, 3" diameter hole. Foam gasket to seal it. I think the only wildcard is how low to mount it as not interfere with the internal dampening material.

Dayton Audio SBPP-BK Binding Post Plate Black Anodized

planet10 25th April 2021 10:48 PM

That works fine. I’d ask to make sure they are standard 3 / 4” spacing.

You want the hole to be as small as possible (we had to work really hard to find a small diameter cup we liked, 2” hole), which means they would have to be rear mounted which makes them practically not removable after assembly. Something i do not recommend. At some point you will want to play with or have to change the wiring.

The posts that tuen up as suggested are not any i would use. Looking thru what they have:

Probably the best ones: https://www.parts-express.com/Gold-D...g-Post-091-335

https://www.parts-express.com/SSP%20...0&resizew=1200

These are good too. I know they look cheesy, but they sound good. The posts could be removed and put onto the bling plate, but given that placement on the FH3 is naturally protected (being inside the horn mouth), i’d just use them as is. If you want to get fancy you could do a rebate and flush mount the bezel. These only require 2 holes large enuff to accomodate the wire and terminal (since we use 24g the terminal dominates), and wit \h 2 screws into the supporting panels an be removed from outside when you need to rewire. Parts Express Gold Binding Post Banana Jack 5-Way Speaker Terminal

https://www.parts-express.com/SSP%20...0&resizew=1200

These are interesting if you only use banana plugs. https://www.parts-express.com/Gold-B...-Pair-091-1160

https://www.parts-express.com/SSP%20...0&resizew=1200

dave

canonken 26th April 2021 01:16 AM

Thanks for the feedback. Are you saying you don't like anything Parts Express has...and those are the least-bad options?

I don't know if you can speak for Bob, but if there is a default option on the kit he sells, I am happy to go with that and not over-think it.

I do want something I can remove after install.

Thanks!

mp9 26th April 2021 01:38 AM

^ I believe WRT binding post he is saying the less metal the better.


All times are GMT. The time now is 11:32 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio

Wiki