random shutdown of my REF-75se - Page 2
Welcome to the AudioShark Forums.
Page 2 of 2 FirstFirst 1 2
Results 11 to 16 of 16
  1. #11
    Senior Member
    Join Date
    May 2017
    Location
    birmingham uk
    Posts
    198
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    last time I had a valve amp [not arc] cut out after long playing , it proved to be it needed a bigger heatsink . had one fitted and all was fine . that was with a 6 year old amp but the 75se is a newish model so not sure what this is . keep us posted
    modwright 36.5dm . msb s200 . Marantz sa8005, bel canto 3.5 vbs , bel canto fm1 tuner . proac 125 speakers

  2. Thanks GreyMouse thanked for this post
  3. #12
    Member
    Join Date
    Jan 2016
    Location
    Denton, Texas
    Posts
    31
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    Quote Originally Posted by hifinutt View Post
    last time I had a valve amp [not arc] cut out after long playing , it proved to be it needed a bigger heatsink . had one fitted and all was fine . that was with a 6 year old amp but the 75se is a newish model so not sure what this is . keep us posted
    I did a number of things to address the problem. I cleared more space around the amp for additional air flow, turned off the meter lamps (why not right?), and removed the trigger cable. For several weeks, the amp worked perfectly when powered up manually. I bought a new, shorter cable and finally installed it last week. So far it's worked perfectly, with no unexpected shutdowns. I don't know if it was the cable or not, but that seemed like a good guess.

    It's possible the old cable was faulty somehow, or that it wasn't perfectly seated in the jack(s) previously.

    I think the problem is resolved. Fingers crossed!
    ProAc Response D30R
    ARC REF-75se
    ARC SP-20
    Rega DAC-R
    VPI Prime/Ortofon Cadenza Blue
    MacMini/Audirvana
    Shunyata Venom cables/power/intercncts
    Quadraspire SV2T bamboo shelf


  4. #13
    Senior Member
    Join Date
    Jan 2014
    Location
    Los Angeles
    Posts
    1,217
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    Quote Originally Posted by GreyMouse View Post
    I did a number of things to address the problem. I cleared more space around the amp for additional air flow, turned off the meter lamps (why not right?), and removed the trigger cable. For several weeks, the amp worked perfectly when powered up manually. I bought a new, shorter cable and finally installed it last week. So far it's worked perfectly, with no unexpected shutdowns. I don't know if it was the cable or not, but that seemed like a good guess.

    It's possible the old cable was faulty somehow, or that it wasn't perfectly seated in the jack(s) previously.

    I think the problem is resolved. Fingers crossed!
    One easy test to confirm is putting a food thermometer on top after a half hour - should be 120 degrees or less.
    Brinkmann Bardo w/ 47 Labs MC Bee cart, MSB Analog DAC --> Music First Baby Reference v2 --> Audio Research Ref 75SE --> DeVore Fidelity Gibbon X

  5. #14
    Senior Member
    Join Date
    May 2017
    Location
    birmingham uk
    Posts
    198
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    Quote Originally Posted by GreyMouse View Post
    I did a number of things to address the problem. I cleared more space around the amp for additional air flow, turned off the meter lamps (why not right?), and removed the trigger cable. For several weeks, the amp worked perfectly when powered up manually. I bought a new, shorter cable and finally installed it last week. So far it's worked perfectly, with no unexpected shutdowns. I don't know if it was the cable or not, but that seemed like a good guess.

    It's possible the old cable was faulty somehow, or that it wasn't perfectly seated in the jack(s) previously.

    I think the problem is resolved. Fingers crossed!
    brilliant , just might try a 75se sometime
    modwright 36.5dm . msb s200 . Marantz sa8005, bel canto 3.5 vbs , bel canto fm1 tuner . proac 125 speakers

  6. #15
    Super Moderator
    Join Date
    Apr 2013
    Location
    NY
    Posts
    13,443
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    It's probably one of ARC's best amps. I'd like to play with one as well.

    Quote Originally Posted by hifinutt View Post
    brilliant , just might try a 75se sometime
    Joe

    McIntosh MCLK12, McIntosh MC303, Job INTegrated, Triode Corporation TRX-M845 Monoblocks, Accuphase A-36, Cary 300B SE, JBL 4367, Falcon LS3/5a, Sonus Faber Stradivari, Revel Ultima Studio 2, JBL 4312D, Klipsch Palladium P17-b, Klipsch RP-160M, Klipsch RB-75, KEF LS50, ModWright Ultimate Sony XA-5400ES, ASL Wave monos, Kimber RCA and XLR cable, VPI Classic 3, VPI SDS, Lyra Kleos, Burmester 948, Metric Halo LIO-8, Lumin U1. PS Audio DirectStream DAC with Bridge II, Linear Tube Audio MZ2 - MicroZOTL2.0 Preamplifier.

  7. #16
    Member
    Join Date
    Jan 2016
    Location
    Denton, Texas
    Posts
    31
    Post Thanks / Like

    Re: random shutdown of my REF-75se

    Quote Originally Posted by joeinid View Post
    It's probably one of ARC's best amps. I'd like to play with one as well.
    There's no question the sound is unimpeachable. My only fear with the trigger cable quirk was I might be without this amazing amp for several weeks.


    Sent from my iPad using Tapatalk
    ProAc Response D30R
    ARC REF-75se
    ARC SP-20
    Rega DAC-R
    VPI Prime/Ortofon Cadenza Blue
    MacMini/Audirvana
    Shunyata Venom cables/power/intercncts
    Quadraspire SV2T bamboo shelf


 

 
Page 2 of 2 FirstFirst 1 2