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Frugel-Horn Mk3
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Introduction

Frugal-Horn.com is a home of high-performance, low-cost (ie frugal) diy horn designs.

The resurgence of interest in full range speakers has led to a renewed exploration of the rear-loaded horn. This coupled with a whole new generation of more advanced computer-based modeling tools have given designers more power to generate better designs.

F
rugal-Horn.com is now 5 years old, started as a place to gather together a collection of some of the better diy horn enclosures. This update brings the Frugel-Horn Mk3 & new Spawns to the site.

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Frugel-Horn Mk3 passed through beta stage with flying colours and has been quickly adopted by the diy hifi community. FH3 been shown to work with a wide variety of drivers including Mark Audio Alpair 7, CHP70 & EL70, CHR70, Fostex FE108eS, FE126e, 126En, FE127e, FF125wk Tangband W5-1611, W4-1879. Trials with other drivers continue. Independent cottage industry Flat-pak manufacture and bespoke finished FH3 has started up in Canada (North America), UK, Australia, & The Netherlands. More are being encouraged.

A
recent review of a commercial FH3 build/system.

With Fostex doing a complete revision of their popular full-ranges, most of the Spawn of Frugel-Horn became obsolete. We now have a new set of Olson/Nagaoka Double Mouth Manifold Horns for the Fostex FExx6En series of drivers. The new Fostex FFxx5wk series can be used in the old mBVR (Changs) but we are looking at optimising for these.
     

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Derek Sanderson's Sachiko's with Fostex FE206eS-R

Rear/Back horns (RLH/BLH), with the rear of the driver loaded by a bass horn, help a full range driver produce more bass with less work, extending the range closer to the holy grail of 10 octave performance and providing startling dynamics. Horns are typically more complex to build, and are not without other problems, but a well-executed BLH can be a real aid to enjoying the music -- and in the end that is what it is all about.

This site inspired by the unflagging support to the DIY community of people such as Greg Monfort, Terry Cain, Ron Clarke, Martin King, and the great number of DIY forums that have created a fertile place for the DIY community to gain the support & help of others around the world, and provide for the healthy cross-fertilization of ideas that is bringing about the
renaissance and acceptance of people building their own HiFi.

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A favourite -- Chang NBVR

     

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Here you will find:

  • the Frugel-Horn Mk3, a small corner horn, useable with an unusually wide variety of drivers
  • the Spawn family, tall double mouth horns and BVRs (Big Vent Reflex)
  • Ron Clarke's horns, 3 elegant horns benefiting from some of the most advanced design tools available today
  • Bob Hayes' Dalek, a challenging to build but beautifully elegant horn for the Fostex FE166e
  • the Metronome, an ML- QQWP family supporting a wide range of drivers that is very elegant & amongst the simplest of horn-like enclosures to build

All of these will be supported by well developed plans (some still a work in progress) and links to community discussions on these specific designs

These horns are free to build for non-commercial use and licencing requirements for commercial ventures are not onerous

We hope that the builders add their own creativity and personality to their speakers.

most recent updates

(major revision go live, with Frugel-Horn Mk3)

05_may_12

(news on H Mk3 updated)

12_feb_10

(EL70 & EL70x2 Metronomes added)


visitors since the site went live 7-february-7

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