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Thread: Bumpy's system

  1. #51
    Join Date: Dec 2018

    Location: Maidstone

    Posts: 40
    I'm julian.

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    Hi Chris,
    How would you compare the Transcription Audio amp to your 45's ?

    kind regards,
    Joolz

  2. #52
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 818
    I'm Chris.

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    Quote Originally Posted by joolz View Post
    Hi Chris,
    How would you compare the Transcription Audio amp to your 45's ?

    kind regards,
    Joolz
    Sorry Joolz I missed this .

    I think its mostly about the power. 45's deliver a very sweet 1.8 watts, but the 211s push out about 20 watts and always give the impression they are 100% in charge. They are slightly less sweet than the 45s, but make up for it in reserves of drive.

    I generally compare a mini and a Roll Royce at 70 mph. Both are very comfortable at that speed but the Rolls Royce performs in a much more relaxed way.
    SW1X Universal Music Server UMS I Signature with Power Supply Unit PSU I Signature
    SW1X USB I Signature
    SW1X DAC III Special
    SW1X Open Baffle Speakers containing both vintage and modern alnico drivers and paper cones. All silver wired and crossover-less where possible - 4" vintage Siemens Klangfilm tweeters, 8" SEAS exotic W8 midrange drivers and vintage 15" Altec VOTT 416 bass drivers
    DRD 45 single ended, 45 triode, monoblocks,
    Silver mains cables, interconnects and speaker cables by SW1X

  3. #53
    Join Date: Dec 2018

    Location: Maidstone

    Posts: 40
    I'm julian.

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    Thanks Chris,
    I think that's a very good analogy, and bears out what i believe i have heard.
    PS Audio Directstream DAC, modified Dennon DVD player.
    1980's Aloia 6L6 prototype, Definative Audio modded Rogue 88 Magmum 6550. CI Audio passive pre.
    Wilmslow Audio modified Chario Academy Millenium II's, Zingalis, Podium 0.5's, Frankenstein DIY's
    Ripnas etc

  4. #54
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 818
    I'm Chris.

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    I am in the process of rebuilding and hopefully improving my open baffle speakers. All changes are reversible if it goes awry.

    1. Out go the Saba 8" Greencones to be replaced with SEAS Alnico W8 drivers. These are so good that I have done away with upper and lower crossovers so they run full range. There is an additional bonus for SQ by removal of the passive crossovers.
    2. Out go the Grundig 4" Alnico high frequency drivers to be replaced by Klangfilm Alnico 4" drivers. Comparison of their weights Grundig 330g and Klangfilm 555g, roughly reflects the improvement in SQ.
    3. The mid and high frequencies are left exclusively to the 211 triodes and the 15" Altec Alnico drivers are fed independently by an ICE amp (1000ASP) through a MiniDSP to set the low pass filter and equalisation. They seem to be best crossed over at about 100Hz so not far off being subs

    Tuning is ongoing
    P1090047.jpgDSC_1174.jpg
    SW1X Universal Music Server UMS I Signature with Power Supply Unit PSU I Signature
    SW1X USB I Signature
    SW1X DAC III Special
    SW1X Open Baffle Speakers containing both vintage and modern alnico drivers and paper cones. All silver wired and crossover-less where possible - 4" vintage Siemens Klangfilm tweeters, 8" SEAS exotic W8 midrange drivers and vintage 15" Altec VOTT 416 bass drivers
    DRD 45 single ended, 45 triode, monoblocks,
    Silver mains cables, interconnects and speaker cables by SW1X

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