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Thread: Putting the fan on

  1. #1
    Join Date: Nov 2011

    Location: Wakefield west yorkshire

    Posts: 1,002
    I'm James.

    Default Putting the fan on

    I don't care if it is introducing noise into my Hifi, I've got to have the fan on today
    cambridge audio azur 651w power amp, novafidelity x40 music server/pre/dac, wharfedale diamond 10.1[suprisingly good]
    , van damme blue series interconnects, van damme studio blue 4mm speaker cable, klotz mc 5000 ,klotz silver hybrid, thanks Brian, fisual hollywood optical cable,, pioneer bdp170, akg k 550

  2. #2
    Join Date: Jan 2009

    Location: Essex

    Posts: 16,340
    I'm openingabottleofwine.

    Default

    I'm using my Quad 510 monoblocks at the moment, in place of my usual 25W Class A monoblocks. The latter each have a dissipation of 400W! It's far too hot for that.
    Have you listened to this month's choice in the Album Club?

    Barry

  3. #3
    Join Date: Nov 2011

    Location: Wakefield west yorkshire

    Posts: 1,002
    I'm James.

    Default

    Quote Originally Posted by Barry View Post
    I'm using my Quad 510 monoblocks at the moment, in place of my usual 25W Class A monoblocks. The latter each have a dissipation of 400W! It's far too hot for that.
    It's too hot for pretty much anything let alone a red hot amp, good you have a fall back amp
    cambridge audio azur 651w power amp, novafidelity x40 music server/pre/dac, wharfedale diamond 10.1[suprisingly good]
    , van damme blue series interconnects, van damme studio blue 4mm speaker cable, klotz mc 5000 ,klotz silver hybrid, thanks Brian, fisual hollywood optical cable,, pioneer bdp170, akg k 550

  4. #4
    Join Date: Mar 2017

    Location: Seaford UK

    Posts: 401
    I'm Dennis.

    Default

    Barry 400W dissipation for an O/P of 25W is very inefficient.

    The maximum theoretical efficiency of class A from memory was about 45%, but that is about 6%.

  5. #5
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,643
    I'm Jez.

    Default

    Quote Originally Posted by Pharos View Post
    Barry 400W dissipation for an O/P of 25W is very inefficient.

    The maximum theoretical efficiency of class A from memory was about 45%, but that is about 6%.
    It all depends on what type of class A and what load it is specified into.

  6. #6
    Join Date: Jan 2009

    Location: Essex

    Posts: 16,340
    I'm openingabottleofwine.

    Default

    Quote Originally Posted by Pharos View Post
    Barry 400W dissipation for an O/P of 25W is very inefficient.

    The maximum theoretical efficiency of class A from memory was about 45%, but that is about 6%.
    They are a pure class A design, where the power output doubles for each halving of the load impedance.

    http://www.marklev.com/2013/04/ml-2-...amplifier.html
    Have you listened to this month's choice in the Album Club?

    Barry

  7. #7
    Join Date: Jul 2014

    Location: Shropshire

    Posts: 1,780
    I'm Anto.

    Default

    You cant beat a bit of fan
    I only ride 'em, I don't know what makes 'em work

  8. #8
    Join Date: Apr 2009

    Location: Melbourne

    Posts: 130
    I'm Alex.

    Default

    The Mark Levinson ML-2 mono blocks were 25 watts Class A and they were huge! So was the Krell KSA 50. All real Class A amps are big, hot and heavy LOL

  9. #9
    Join Date: Apr 2017

    Location: Algarve

    Posts: 13
    I'm alain.

    Default Stayin' Cool

    With a bit of creative thinking No need for a fan


    sAYIN' COOL3 8.jpg

    Notice I'm earthed also
    Marantz HD AMP 1, Marantz HD CD1 both on Oak Cone feet, Dynaudio Emit M10 speakers on Norstone Stylum Stands with Soundcare Superspikes.
    HiFi in Touch Oak distribution block, RA Mains powerkord 100, RA Yello with Wattgate IECs and MCRU Ag plated mains plugs, Atlas Ascent Ultra digital coax, TQ Ultra Blue speaker cable

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