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Thread: Going Back in Time

  1. #11
    Join Date: May 2012

    Location: Dagenham Essex

    Posts: 7,185
    I'm I'mteachingmarcotheartofpishanto.

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    just need to wait for her to die then I will have the room and the sideboard
    OOF!
    Music , fills the gaps between silence !

    TAT Sale post Leader " Marcos Mentor "

    Also a pishanto specialist confirmed by Head Daftee

    Real name " Allen " or "Zoomer Nut”, “Numpty Napper”.

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  2. #12
    Join Date: Oct 2011

    Location: Glasgow

    Posts: 759
    I'm Paul.

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    Don't worry Al. There's no rush

  3. #13
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,479
    I'm Geoff.

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    Quote Originally Posted by hermit View Post
    TBH, the IMFs were a big surprise. I didn't expect much when I brought them home but they have really exceeded my expectations. Surprisingly they work well in a small room.
    Transmission line speakers and horns often do work well in small rooms (strangely my big reflex Tannoy Cheviots do too).
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  4. #14
    Join Date: Aug 2010

    Location: Devon, Torquay.

    Posts: 5,480
    I'm Shane.

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    Quote Originally Posted by walpurgis View Post
    Transmission line speakers and horns often do work well in small rooms (strangely my big reflex Tannoy Cheviots do too).
    +1

    S.
    Shane Lonergan........UB1 Birth.

  5. #15
    Join Date: Jan 2008

    Location: Forest of Dean, Glos & Cambrian mountains, Wales

    Posts: 8,882
    I'm Jerry.

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    Wow - excellent!

    I heard a pair of IMF TLS50 in a friends 2nd system a few years ago - we'd been listening to his 'posh' main system with expensive Opera speakers for quite a while when for a laugh he fired up the 2nd system that resides in another room. I much preferred the system with the TLS50, and I think that was mainly down to the speakers.

    I don't know the Response 2S, but I am a big fan of the original Proac Response 2 - a pair replaced Quad 63, and totally showed them the door in every way, imo. I'd imagine that the presentation is very different between the IMF and Proac speakers - both good, just different!

    Maybe it's an age thing - but my system seems to be slowly heading backwards in time as well. I can now afford to buy things I could only ogle at enviously back in the day so I'm indulging myself a bit.
    They made good kit back then that looked the biz.
    Jerry

    Spotify Premium streaming, Wadia 151 PowerDAC, Speakers: MBL 116F.

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  6. #16
    Join Date: Jan 2009

    Location: Norwich

    Posts: 2,238
    I'm Hugo.

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    Do the IMF speakers sound better with the grilles on? The reason for asking is that the HF drive units are very close to the recessed baffle edge and there will be horrible diffraction effects, unless the grille incorporates some felt or similar to deal with that. If there's no felt in the grille, then a cheap tweak is to cut some thickish felt material into rings and place these around the tweeter and super-tweeter domes.

    I saw a visual representation of this sort of diffraction last week at the Institute of Acoustics 'Reproduced Sound' conference - some clever people at the National Physical Laboratory (NPL) have found a way of using laser interferometry to produce a moving video of sound waves. It's very interesting (but perhaps not surprising) to see what happens when a propagating sound wave produced by a tweeter hits a hard edge!

  7. #17
    Join Date: Jan 2014

    Location: Bristol

    Posts: 832
    I'm Nathan.

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    My mum has one that would be perfect - just need to wait for her to die then I will have the room and the sideboard

    I do like that! The amp looks great, I'm thinking of setting up a vintage system myself.
    Edingdales, Chord Odyssey 2 Speaker Cable, Mark Grant G1000HD, World Designs Kel84, Denon AVC-A1D, Pioneer SA-8100, Pioneer TX-9100, IsoTek Multi-way 6 main filter, Nottingham Analogue Interspace, Jelco SA-750E 10", Denon DL-103C1 Paratrace profile diamond ExpertStylus, Firebottle Plus Phono Stage, 27" iMac 2010 For Digital Music, HTPC (XBMC) Optoma HD65 Projector, Self Built Electric Projector Lift, 92" Electric Screen, Phillips Pronto TSU9400 To Control It All

  8. #18
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,479
    I'm Geoff.

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    Quote Originally Posted by Ammonite Acoustics View Post
    It's very interesting (but perhaps not surprising) to see what happens when a propagating sound wave produced by a tweeter hits a hard edge!
    Imagine the tweeter emitting high pressure water and you'd get an idea (not exact).
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  9. #19
    Join Date: Oct 2011

    Location: Glasgow

    Posts: 759
    I'm Paul.

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    Quote Originally Posted by jandl100 View Post
    I don't know the Response 2S, but I am a big fan of the original Proac Response 2 - a pair replaced Quad 63, and totally showed them the door in every way, imo. I'd imagine that the presentation is very different between the IMF and Proac speakers - both good, just different!
    The Response 2S are also excellent speakers. I enjoyed them greatly during the two years I had them. You are quite right in saying both are good, just different. If I could have afforded to keep both I would have but on balance I felt that the IMFs had better synergy with my vintage gear and just seemed to give me more of the sound that I was looking for. Big transmission lines do real bass in a way that a small ported box cannot. Given the fact that the driver layout of the IMFs looks like a dog's dinner, they image surprisingly well and produce a big convincing soundstage that has real depth and height. However, the Proacs probably have the edge in terms of 'holographic' imaging and detail retrieval.

    Quote Originally Posted by jandl100 View Post
    Maybe it's an age thing - but my system seems to be slowly heading backwards in time as well. I can now afford to buy things I could only ogle at enviously back in the day so I'm indulging myself a bit.
    This. I love the Marantz gear that you have too. Simply gorgeous. Proper hi-fi! My first job back in 1978 was as a Saturday boy in a hifi shop and my first system was Sansui SR222 mk1, JVC JAS-11G, AR18 mk1. I loved that system and had it for donkey's years. When I saw the Kenwood amp for sale in Glasgow it gave me the idea of building a 'high-end' version of my original system. My dream was to buy AR3a speakers to go with the Kenwood and Sony. I did buy a pair from ebay but all the original drivers had been replaced so they went back. I'm very happy with the IMFs so I'm no longer searching for AR3as.


    Quote Originally Posted by Ammonite Acoustics View Post
    Do the IMF speakers sound better with the grilles on? The reason for asking is that the HF drive units are very close to the recessed baffle edge and there will be horrible diffraction effects, unless the grille incorporates some felt or similar to deal with that. If there's no felt in the grille, then a cheap tweak is to cut some thickish felt material into rings and place these around the tweeter and super-tweeter domes.!
    Great idea! I listen with the grills on as I have mental cats. I will definitely get some felt and experiment a bit.

    Edit - I recently restored a pair of AR94s that had a square of felt about 7-10mm thick around the tweeter (see pic). What thickness would you recommend? Also should the ring be quite tight to the each tweeter dome or should I try to frame both tweeter and supertweeter within a triangularish felt box a bit like the AR94s?

    Last edited by hermit; 26-10-2014 at 12:21.

  10. #20
    Join Date: Oct 2014

    Location: LIVINGSTON,CENTRAL SCOTLAND

    Posts: 129
    I'm charles.

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    Quote Originally Posted by The Barbarian View Post
    You just need to scrap the Hifi rack & put your clobber on a sideboard in true vintage style

    I thought a wall unit would be better:

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