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Thread: A very weird upgrade? The PMR (Passive Multi-vocal Resonator)

  1. #1
    Join Date: Sep 2009

    Location: Derbyshire

    Posts: 7,309
    I'm Josie.

    Default A very weird upgrade? The PMR (Passive Multi-vocal Resonator)

    Hi all.

    On my travels I came across this rather bonkers thing. It's called a PMR (Passive Multi-vocal Resonator) - Sounds crazy and rather like something out of Dr. Who or another 1950's SCI-FI film.



    You place it directly in front of you between the speakers. Full article below.

    http://www.stereotimes.com/acc010412.shtml

    Anyway.. has anyone experienced one of these?
    Preamplifier: Croft Epoch Elite - Dual external PSU & Upgrades
    Amplifier: Tube Distinctions Copper Amp No. 5 using KT150's
    Digital: Raspberry Pi & ALLO Piano DAC & KALI - IQAudio DAC with SBooster Linear BOBW PSU & Trio DP700 CDP
    Turntable: Thorens TD124 MkII - Schopper refurbished
    Tonearm: SME 3009 S2 None Improved - Audio Origami modified
    Cartridge: Ortofon SPU GT
    Speakers: 15" Tannoy Monitor Golds in Lockwood Majors with Tannoyista Spec 3 crossovers
    Cables/Mains: Mark Grant Black Series mains cables & 6-Way power bar
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    Mains Other: Tube Distinctions/Mark Grant 'The Power Works' Digital noise mains power filter TD2414-MG - Nick Gorham DC Blocker unit constructed by Mark Grant

  2. #2
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 35,508
    I'm Grant.

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    early warning system for incoming enemy aircraft?
    Regards,
    Grant ....

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    DENON DV2900 - TWIN PRO MONOBLOCK AMPLIFIERS - XIANG SHENG DAC\PRE\HEADPHONE AMP - AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER23, SPOTIFY PREMIUM - SMSL M6 MINIDAC - FULL RANGE TWIN TELEFUNKEN's - Q ACOUSTIC BT3 actives - CANTON SUB - MAINS REGENERATED AND FILTERED.

  3. #3
    Join Date: Jan 2013

    Location: Bristol

    Posts: 3,217
    I'm Justin.

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    The Foo Fighters perhaps?
    Black and blue and broken bones - you left me here - I'm all alone. My little piggy needed something new.

  4. #4
    Join Date: Mar 2010

    Location: Sheffield

    Posts: 2,475
    I'm Simon.

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    Its just a buddhist monk prayer bowel on a wobbly stand. It'll make as much difference as a nice Paiste cymbal would.,
    Kuzma Stabi/S 12", (LP12-bastard) DC motor and optical tacho psu, Benz LP, Paradise (phonostage). MB-Pro, Brooklyn dac and psu, Bruno Putzeys balanced pre, mod86p dual mono amps, Yamaha NS1000m

  5. #5
    Join Date: Jan 2013

    Location: Bristol

    Posts: 3,217
    I'm Justin.

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    I must admit I was in a room at Munich that had one in it. It wasn't the best room oddly.
    Black and blue and broken bones - you left me here - I'm all alone. My little piggy needed something new.

  6. #6
    Join Date: Nov 2011

    Location: Newcastle UK

    Posts: 3,621
    I'm Rich.

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    If you had a pair of them you could sit in between with a couple of hammers and have loadsa fun.
    NEBO 8 - Sat 6th May 2017, St George Hotel, Durham Tees Valley Airport. 10am til late.

    See here for details: http://theartofsound.net/forum/showt...Airport/page20

  7. #7
    Join Date: May 2016

    Location: Notts

    Posts: 555
    I'm Geoff.

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    I have had some success with this device: the Gazunder Resonator. Of course this is the standard undamped unit. The designers leave it to the user as to how much damping to apply!

    gazunder resonator.jpg

  8. #8
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 27,818
    I'm Geoff.

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    I've got an old dustbin lid in the garden that I could try. I'm sure it would be every bit as effective (at what quite, I don't know?)
    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. #9
    Join Date: May 2016

    Location: Much Wenlock

    Posts: 283
    I'm Gary.

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    Quote Originally Posted by Sherwood View Post
    I have had some success with this device: the Gazunder Resonator. Of course this is the standard undamped unit. The designers leave it to the user as to how much damping to apply!

    gazunder resonator.jpg
    I recognise this, I believe it was the bog standard one, l can't tell from the photo, later ones were Harvest Gold.

  10. #10
    Join Date: Nov 2008

    Location: Belfast/Northern Ireland/UK

    Posts: 16,272
    I'm Neil.

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    Closest I have come to that - not heard the item being asked about - are the Synergistic Research Acoustic Art System http://www.synergisticresearch.com/acoustic-art-system/

    Heard them put into a room, then taken out. I was very sceptical, they made a difference. I can't explain it and no it wasn't placebo. The difference, improvement was large and obvious.

    Those taking the piss, go listen to the item in the OP then come back and share a valid opinion based on actually hearing it. If you haven't heard then I would suggest keeping snide, derisory comments to yourself.
    Regards Neil

    System 1: AMG Giro turntable, AMG 9W2 tonearm, Air Tight PC3 cartridge, Passlabs Xono phonostage, AMG Reference armcable. Accuphase DP57 CD player, Marantz SA7 SACD player, Sony HAP Z1es Digital File Player + Audioquest Jitter Bug, Veracity Mystra DAC + Dell Laptop + iFi i power + JKenny JKSPIDIF, Wireworld Starlight USB + Audioquest Jitter Bug, for computer audio, Audio Valve RKV2 headphone amp, headphones Grado GS 1000, Balanced Audio Technology VK300se integrated amplifier, Anthony Gallo Reference 3.1 speakers. Cabling: Signal - Audience AU24, Analysis Plus, Atlas Mavros, Speaker - QED Genesis Silver Spiral. Mains Cabling: Audience AU24, Analysis Plus, TCI. Mark Grant distribution blocks, Equipment tables Target Audio B series.

    System 2: Loricraft Garrard 401 turntable + SME 5 tonearm + VDH MC10 cartridge + Graham IC70 tonearm cable, Modified Technics 1200 turntable + Triplannar 7 tonearm + VDH Frog Gold cartridge + Paul Hynes SR7 PSU, SME Model 20 turntable + Graham Phantom tonearm + Ortofon MC5200 cartridge + Graham IC70 tonearm cable, Balanced Audio Technology VK10se phonostage, Moon Andromeda CD player, Esoteric P5 SACD transport and P 5 DAC, Toshiba 9500 DVD Audio player, AMR DP777 DAC + HP laptop + iFi i power + Wireworld Starlight USB - for computer audio, Kenwood 8300 tuner, Revox B760 tuner, Magnum Dynalab signal sleuth, Leak Troughline tuner + EAR Stereo decoder, Revox B77 mk 2 & Revox A77 mk3 reel to reel recorders, Balanced Audio Technology VK52se pre-amplifier, Music Reference RM200 mk1 power-amplifier, Anthony Gallo Reference 3.5 speakers. Cabling: Signal/Speaker - Atlas Mavros. Mains Cabling: Audience AU24, TCI. Mains distribution blocks Mark Grant and Russ Andrews, Equipment tables Clear Light Audio.

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