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Thread: Frugel horn. Would somebody care to explain the design?

  1. #1
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 36,815
    I'm Geoff.

    Default Frugel horn. Would somebody care to explain the design?

    The Frugel Horn is a speaker that keeps cropping up here, but it's also one that has a few questions around it's design and implementation.

    Pictures of these I've seen here show it situated and used as a free standing speaker, yet I understand it is a corner design. In other words, I assume it should be positioned tight into a corner for wall reinforcement from the corner angles, which would form the horn flare/termination. This suggests to me that nobody is using them correctly.

    Also, the cabinet starts off as what appears to be a quarter wave type horn, only to feed the rear exit through a small vent more suited to a reflex design, which I suspect is what it is in reality (Castle used a similar design). It certainly is not a true quarter wave horn.

    Is anybody able to shed some light?

    Last edited by walpurgis; 14-03-2018 at 09:02.

  2. #2
    Join Date: Nov 2015

    Location: Wolverhampton

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    I'm Oliver.

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    I've been offered a loan of a pair of these. I hadn't picked up that they should be used in a corner either, probably due to ignorance lol.

    Does the siting have a massive effect on these in your theoretical opinion, Geoff?
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK5 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken & Tesla Valves)
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  3. #3
    Join Date: Apr 2012

    Location: Southall, West London

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    I'm Geoff.

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    Quote Originally Posted by Bigman80 View Post
    Does the siting have a massive effect on these in your theoretical opinion, Geoff?
    If, as stated on the website, they are corner horns, then the correct siting is crucial. A corner horn will not work properly otherwise. Bass depth and impact will suffer.

  4. #4
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 6,244
    I'm Oliver.

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    Bit pointless borrowing them then

    Cheers Geoff. PS, I'm harassing Bob about Tannoys lol
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK5 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken & Tesla Valves)
    Digital: NONE
    Amplification: Nelson Pass DCB1 & Monarchy Audio SM-70 Class A Amplifier
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables & NEW SPOTFIRE Tonearm cable
    Speakers: Pioneer CS-77A

  5. #5
    Join Date: May 2012

    Location: Toulouse

    Posts: 4,425
    I'm GettingFunky.

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    MIne work fine not far from the back wall. I donít feel that they lack bass.
    Electric Beach have also developed something to sit behind the speaker to aid with positioning.
    Contemplating life, the universe and use of HiFi forums.

    Life is too short to worry about the opinion of others.

  6. #6
    Join Date: Oct 2016

    Location: Bolton, England

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    I'm Andrew.

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    Quote Originally Posted by walpurgis View Post
    Is anybody able to shed some light?
    Somehow, I doubt it. But maybe I'm just an old cynic
    BTW, is that drawing the latest version? There seems to have been various different incarnations.

  7. #7
    Join Date: Apr 2012

    Location: Southall, West London

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    I'm Geoff.

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    Quote Originally Posted by RothwellAudio View Post
    BTW, is that drawing the latest version? There seems to have been various different incarnations.
    Who knows? And, yes I know.

  8. #8
    Join Date: Apr 2012

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    I'm Geoff.

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    Quote Originally Posted by CageyH View Post
    MIne work fine not far from the back wall. I don’t feel that they lack bass.
    Electric Beach have also developed something to sit behind the speaker to aid with positioning.
    If you're happy thats all that matters.

  9. #9
    Join Date: Nov 2008

    Location: Valley of the Hazels

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    I'm AMusicFanNotAnAudiophile.

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    My FH3s work fine up against a solid (brick) wall.
    The flare to the rear of the cabinet is an extension of the horn.
    Chris



    Common sense isn't anymore!

  10. #10
    Join Date: Apr 2012

    Location: Southall, West London

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    I'm Geoff.

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    The point seems to be getting missed. Users may like the results they are getting, but has anybody tried them tightly into corners? That would seem to be the intended way to use them.

    And, there are no replies yet about the cabinet design. Is it even a true horn?

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