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Thread: Passive preamp buzzing?

  1. #111
    Bigman80 Guest

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    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

  2. #112
    Join Date: Apr 2012

    Location: N E Kent

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    I'm Geoff.

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    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.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  3. #113
    Bigman80 Guest

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    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

  4. #114
    Join Date: Aug 2009

    Location: Staffordshire, England

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    I'm Martin.

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    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.
    Current Lash Up:

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

  5. #115
    Bigman80 Guest

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    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

  6. #116
    Join Date: Apr 2012

    Location: N E Kent

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    I'm Geoff.

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    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
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  7. #117
    Join Date: Feb 2013

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    I'm Grant.

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    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.
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  8. #118
    Join Date: Apr 2012

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    I'm Geoff.

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    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.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  9. #119
    Join Date: Aug 2009

    Location: Staffordshire, England

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    I'm Martin.

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    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.
    Current Lash Up:

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

  10. #120
    Join Date: May 2008

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    I'm David.

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    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...
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