Closed Thread
Page 12 of 29 FirstFirst ... 2101112131422 ... LastLast
Results 111 to 120 of 284

Thread: Passive preamp buzzing?

  1. #111
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 3,120
    I'm Oliver.

    Default

    Quote Originally Posted by Macca View Post
    We had a passive pre bake off at NEBO a few years ago and the modded Goldpoint in this thread was one of the contenders. I thought the power amp in use masked differences a bit but the Goldpoint still stood out as notably different in its presentation. It did sound 'open' but it also lacked a bit of 'oomph' - Ali's Slagel pre sounded similar but didn't lack the 'oomph'. So correcting the problem by modding the Jolida may not be optimal solution.
    Can swap the caps back once the slagle arrives. No drama.

    Sent from my EVA-L09 using Tapatalk
    Technics SP10 MK2 > Phonomac AT-1010 tonearm > ZYX R50 Bloom cartridge > Jolida JD9 MKII > Firebottle Monoblocks > Creek OBH-11SE Headphone Amp > IXOS Speaker Cables > Pioneer CS-77A Speakers

  2. #112
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,457
    I'm Geoff.

    Default

    Quote Originally Posted by Bigman80 View Post
    Can swap the caps back once the slagle arrives.
    Having a bash at an AVC job Oliver? You'll like that.
    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!

  3. #113
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 3,120
    I'm Oliver.

    Default

    I am Geoff, modded the Jolida to Try and get the best from the Goldpoint, lost the soundstage a bit so presumably that'll be the newness of the caps although there could be a trade-off from using bigger capacitors. Trialing Ali Tait's Slagle AVC which should be with me tomorrow. I'll drop the old caps back in and see how they do. Interesting stuff mate. I'm hoping for big things from it.

    Sent from my EVA-L09 using Tapatalk
    Technics SP10 MK2 > Phonomac AT-1010 tonearm > ZYX R50 Bloom cartridge > Jolida JD9 MKII > Firebottle Monoblocks > Creek OBH-11SE Headphone Amp > IXOS Speaker Cables > Pioneer CS-77A Speakers

  4. #114
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 17,796
    I'm Martin.

    Default

    Quote Originally Posted by Arkless Electronics View Post
    I recall there being bugger all difference between them, as expected, (not none at all but barely noticeable and I was wondering if I was kidding myself that I could hear any difference really) apart from the Slagle TVC which was noticeably slightly bright and brought out leading edges of plucked guitar etc... which sounded nice (more impressive) but probably not as accurate as the others.
    Pretty much exactly my own impressions. I liked what the Slagle did too, but if that was right then the rest were wrong.
    Martin



    Current Lash Up:

    Sony X505ES CD Player * NVA P90SA passive pre / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *



    "I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me." - Hunter S Thompson

  5. #115
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 3,120
    I'm Oliver.

    Default

    Quote Originally Posted by Macca View Post
    Pretty much exactly my own impressions. I liked what the Slagle did too, but if that was right then the rest were wrong.
    Haha, it seems to be another "matter of taste" situation. I'm enjoying the GP. It was very open and revealing. If the Slagle does that with some extra umph, I'll be very impressed.

    Sent from my EVA-L09 using Tapatalk
    Technics SP10 MK2 > Phonomac AT-1010 tonearm > ZYX R50 Bloom cartridge > Jolida JD9 MKII > Firebottle Monoblocks > Creek OBH-11SE Headphone Amp > IXOS Speaker Cables > Pioneer CS-77A Speakers

  6. #116
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,457
    I'm Geoff.

    Default

    It'll be a whole different ball game mate. Basic passives can have their uses, but after using an AVC or TVC, I don't think you'll be wanting to go back.

    I had one extremely good TVC, a MingDa MC-9, which sounds stunning with the two Monarchy Audio power-amps and my buddy has just given me another, a Promitheus, for which I'm very grateful, as it suits the Quad 306 rather well (vastly underrated power-amp the 306, a little gem! ).

    Something may have to go though. That's six pre-amps here now! Trouble is, I like 'em all
    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!

  7. #117
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 36,453
    I'm Grant.

    Default

    Quote Originally Posted by Macca View Post
    Pretty much exactly my own impressions. I liked what the Slagle did too, but if that was right then the rest were wrong.
    only right if you liked it i guess, unless you prefer what you like less....if that makes sense with all my gear I didnt care what it was, just what it did together.
    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 - AVANTREE OASIS CLASS 1 BLUETOOTH - AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER23, SPOTIFY PREMIUM - ECHO DOT - SMSL M6 MINIDAC - FULL RANGE TWIN TELEFUNKEN's - Q ACOUSTIC BT3 actives - CANTON SUB - MAINS REGENERATED AND FILTERED.

  8. #118
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,457
    I'm Geoff.

    Default

    Quote Originally Posted by struth View Post
    with all my gear I didnt care what it was, just what it did together.
    Exactly Grant. The end result is what matters and some unlikely combos can work really well.
    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. #119
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 17,796
    I'm Martin.

    Default

    Quote Originally Posted by struth View Post
    only right if you liked it i guess, unless you prefer what you like less....if that makes sense with all my gear I didnt care what it was, just what it did together.
    I did seriously consider buying the Slagle when it came up for sale on here a while back. After all it could be that the Slagle is right and the others are wrong Anyway, I liked what it did regardless.
    Martin



    Current Lash Up:

    Sony X505ES CD Player * NVA P90SA passive pre / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *



    "I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me." - Hunter S Thompson

  10. #120
    Join Date: May 2008

    Location: A Strangely Isolated Place in Suffolk with far away trains passing by...

    Posts: 14,359
    I'm David.

    Default

    A good passive attenuator shouldn't alter the sound signals passing through it at all and if it does, only the very tiniest amount. The Goldpoint you're playing with had significant alterations made to it I understand so anything could be going on. I don't know the spec of the power amps you use and the phono stage is a strange one with its valve output buffer - a Croft RIAA may have been a far better option possibly if you wouldn't consider the known 500 one you liked... Not sure that 'shunt' resistors are in the signal path in an attenuator, they just take gain away and alter the loads as seen by the source at the input and power amp at the output and used with 'wacky' sources and non-standard power amps, anything can happen and often does in my experience - I'm not trolling or having a go here!

    Maybe you should strip everything back to basics with known stock items, for cheapness a Rega Fono (A-D) as it's CHEAP, hum free and gives a good small-scale performance with popular MM cartridges (the Schiit Mani hums if it isn't happy I'm told by a frustrated ex-owner who replaced it with the Fono A-D), one of the cheapo passives out there (one I know rather well and there are a couple of others if you look around for a ton or so). Maybe even a used known good neutral power amp to keep in a cupboard as a reference (a Quad 306 makes an excellent standby amp, they hold their value incredibly well, are easy to service and a couple of years little use won't devalue it later on- it's perfect with a passive controller too and Quad recommended one at the time for owners of old worn-out 33's).

    Sorry to go on. If you don't have a universally known good reference point, merely 'trusting your ears' can lead you so far down the garden path and up your backside in the process, you'll completely lose touch with what things should be. I've been there myself, looking back and am only trying to help...
    Tear down these walls; Cut the ties that held me
    Crying out at the top of my voice; Tell me now if you can hear me

Closed Thread
Page 12 of 29 FirstFirst ... 2101112131422 ... LastLast



 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •