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Thread: Experiments in Isolation

  1. #1
    Join Date: Nov 2011

    Location: Seaton, Devon, UK

    Posts: 13,261
    I'm Adrian.

    Default Experiments in Isolation

    I have been listening to the youtube video by the "British Audiophile" recently, they are quite interesting and he talks quite a bit of common sense, he says that he was in the audio industry, but I am not sure in what capacity. Any way this video is interesting.

    .

    A very good audiophile friend had watched it and isolated his amplifier and phono stage, and Cd player, and speaker with what "British Audiophile" recommends and he told me that the overall improvement was a no brainer, especially for about £60 outlay. I have been looking at some quite expensive isolation products but the cost has been putting me off.

    I had already isolated my amps, so I thought I would have a play with my speaker isolation.

    I have had the speakers stood on spikes directly on the carpet with the spikes going into the floor. The floor is concrete block and beam construction, with foam insulation on top and then a layer of chip board, so effectively a stiff suspended floor. I found that as the Wilson Benesch Vectors have downward firing ports that placing them on the Oak platforms improved the bass, detail and depth.

    Prior to the changes below they were stood on the Oak platforms on their spikes onto aluminium spike protectors.

    1st Test - This is with some simple rubber speaker floor protectors that are designed to take spikes. This was an improvement, there was definitely more bass, but not as defined as I had hoped for, so room for improvement maybe.



    2nd Test - I removed the speaker spikes and placed each speaker on 4 isolation pads, I already had two of them spare, https://www.amazon.com/Diversitech-M...on+pads&sr=8-4 so I cut each in to quarters.

    The result here was quite a big improvement IMO, bass was more defined, control and had better extension and clarity. This was particularly clear when listening to Paul Simons - 'Boy in a Bubble' from Graceland the bass drum being very impressing with clear extension and decay not anywhere near as evident as before. Ravi Shankar - track 1 off Portrait of Genius has some excellent Indian Tabla drumming and the hollowness of these became more evident with better decay.

    I alos noticed with both these tracks and others that general instrument separation and clarity had improved, so not just the low end frequencies have improved but the focus of mid and upper range as well.

    So if you fancy a little experiment and see if you can improve what you experience for not much cost I would recommend you have a play.

    Listening is the act of aural discrimination and dissemination of sound, and accepting you get it wrong sometimes.

    Analog Inputs: Pro-Ject Signature 10 TT & arm, Benz Micro LP-S, Michel Cusis MC, Goldring 2500 and Ortofon Rondo Blue cartridges, Hitachi FT5500 mk2 Tuner

    Digital:- Marantz SA-KI Pearl CD player, RaspberryPi/HifiBerry Digi+ Pro, Buffalo NAS Drive

    Amplification:- AudioValve Sunilda phono stage, Krell KSP-7B pre-amp, Krell KSA-80 power amp

    Output: Wilson Benesch Vector speakers, KLH Ultimate One Headphones

    Cables: Tellurium Q Ultra Black II RCA & Chord Epic 2 RCA, various speaker leads, & links


    I think I am nearing audio nirvana, but don’t tell anyone.

  2. #2
    Join Date: Mar 2014

    Location: West Wales

    Posts: 845
    I'm malcolm.

    Default

    I tried the ferrites on speaker cables quite recently, it certainly made a difference... For the worse, vocals became quote recessed.
    Audiophile Tosher

  3. #3
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by willbewill View Post
    I tried the ferrites on speaker cables quite recently
    Why?
    Chris



    Common sense isn't anymore!

  4. #4
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 37,879
    I'm Martin.

    Default

    I use the washing machine feet he mentions in the video for the TV system speakers as they stand on a cabinet. Very effective and were literally just a couple of quid from Lidl.

    Will be getting some more for under the subwoofer when I get around to deploying it.
    Current Lash Up:

    TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.

  5. #5
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 37,879
    I'm Martin.

    Default

    Tried the ferrites he mentions too. I got a big bag full and put them on every mains cable in the house that didn't have one already. Could not detect any difference. I guess I did not have a problem to fix. But the principle is sound so YMMV. It's cheap to try.
    Current Lash Up:

    TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.

  6. #6
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by Macca View Post
    Tried the ferrites he mentions too. I got a big bag full and put them on every mains cable in the house that didn't have one already. Could not detect any difference. I guess I did not have a problem to fix. But the principle is sound so YMMV. It's cheap to try.
    I have them on power cables too, and they're staying where they are.
    Chris



    Common sense isn't anymore!

  7. #7
    Join Date: Mar 2014

    Location: West Wales

    Posts: 845
    I'm malcolm.

    Default

    Quote Originally Posted by Stratmangler View Post
    Why?
    Coz I watched the video and had some spare.
    Audiophile Tosher

  8. #8
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by willbewill View Post
    Coz I watched the video and had some spare.
    That's nearly 20 minutes you'll not get back
    Chris



    Common sense isn't anymore!

  9. #9
    Join Date: Mar 2014

    Location: West Wales

    Posts: 845
    I'm malcolm.

    Default

    Quote Originally Posted by Stratmangler View Post
    That's nearly 20 minutes you'll not get back
    Was more like an hour... Doh! Doh!
    Audiophile Tosher

  10. #10
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Just think, a sammy-shank would've taken you 5 mins instead, and given you rather more pleasure!

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


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