High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ High Efficiency Speaker Asylum ]

---

[ Alert Moderator ]

---

RE: is it ok to examine some BLH horn by converting to FLH?

Posted by freddyi (A) on July 17, 2007 at 11:27:49

In Reply to: RE: is it ok to examine some BLH horn by converting to FLH? posted by Paul Eizik on July 17, 2007 at 09:20:01:

hey Paul - here's a real BLH built by "awhite" over at the fullrange forum using Fostex 225K. IIRC throat area is around 8 sq.in.

I asked the builder to put a sealed chamber over the front - he took a graph and I mucked with it a bit adding his plans to show the horn's folds

here's what he came up with FOR RESPONSE

some BLH-horn-designers insist upon smooth curved surfaces while others might take an approach ~like Olson's 1937 patent.

questions - whats important in making good and good sounding BLH? how far up must the rear wave show "gain" and how does baffle-step and what can be expected of the rear wave's contribution and summation(s)
in real world horns?

imo that graph is cool - seems like method I suggested would pretty well separate the rear-wave performance and beamwidth with a few traces - whadya think?

Freddy

Edits: 07/17/07

This post is made possible by the generous support of people like you and our sponsors:

Kimber Kable

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---