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Thread: AMP upgrade question?

  1. #1
    Join Date: Jan 2016

    Location: Hull

    Posts: 312
    I'm paul.

    Question AMP upgrade question?

    AMP upgrade question?

    Anyone have any experience of the Lumley Reference ST70 amp? Does anyone know the retail price when it was new (rumoured to be 5000)?

    At the moment I have the Puresound 2A3 with rolled NOS valves. RRP 2100.

    Would anyone think this could turn out to be a worthwhile upgrade?
    ARCAM FMJ-A19 + Tacima CS947, Tannoy DC6T Speakers, Tannoy TS10 Subwoofer + Tacima CS947, Sennheiser HD 558 headset, Arcam Miniblink DAC + iFI iPOWER, HP Pavilion G6* - 2382sa D0Y14EA#ABU + Creative BT-D1 [+ Azio BTD-V401]; [*using onboard battery for music listening]. + Audio Software [Room EQ Wizard, Equalizer APO, media players]. I also have a Creative Cambridge DTT2200 5.1 System, & Denon AH-D320 Phones.

  2. #2
    Join Date: Jan 2016

    Location: Hull

    Posts: 312
    I'm paul.

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    OK, so the Lumley 'sold'!!

    Let's put it a different way:

    I have a Puresound 2A3 with NOS valves installed.

    If I wanted to go to the so called 'next level' in sonic performance (cleaner sound, better separation etc) does anyone know what would be a good upgrade?

    Some reviews of the 2A3 say that it can hold its own against other amps costing 2 or 3 times the price? If that were the case, there would be no viable upgrade below 6000??

    Maybe something like a Unison Research or Ayon?

    ARCAM FMJ-A19 + Tacima CS947, Tannoy DC6T Speakers, Tannoy TS10 Subwoofer + Tacima CS947, Sennheiser HD 558 headset, Arcam Miniblink DAC + iFI iPOWER, HP Pavilion G6* - 2382sa D0Y14EA#ABU + Creative BT-D1 [+ Azio BTD-V401]; [*using onboard battery for music listening]. + Audio Software [Room EQ Wizard, Equalizer APO, media players]. I also have a Creative Cambridge DTT2200 5.1 System, & Denon AH-D320 Phones.

  3. #3
    Join Date: Dec 2015

    Location: vancouver

    Posts: 642
    I'm danilo.

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    Something from Nelson Pass perhaps ??
    My audio bits: Thorens / diy phono, CD/dvd player(s), diy pre, F6, Tannoy Golds in my boxes / my xovers, and of course all strung together with basic diy Wires
    Lots of Cd's, yet more audio files, a couple of hundred semi worn Lps.

  4. #4
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 17,114
    I'm Martin.

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    Does it have to be valve? Does it have to be new?

    I'd take a Radford STA15 over the Puresound any day of the week and I don't think they are anything like 6K new. A used one could be had for 1500, factor in the cost of a service and new valves, maybe 2 grand tops.
    Martin



    Current Lash Up:

    Technics SL1200 with Sumiko h/s & Nagaoka MP50 * Firebottle valve MM phono stage * Parasound CDPi1000 * 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. #5
    Join Date: Jan 2016

    Location: Hull

    Posts: 312
    I'm paul.

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    Quote Originally Posted by danilo View Post
    Something from Nelson Pass perhaps ??
    Thanks, not heard of nelson, more info?
    ARCAM FMJ-A19 + Tacima CS947, Tannoy DC6T Speakers, Tannoy TS10 Subwoofer + Tacima CS947, Sennheiser HD 558 headset, Arcam Miniblink DAC + iFI iPOWER, HP Pavilion G6* - 2382sa D0Y14EA#ABU + Creative BT-D1 [+ Azio BTD-V401]; [*using onboard battery for music listening]. + Audio Software [Room EQ Wizard, Equalizer APO, media players]. I also have a Creative Cambridge DTT2200 5.1 System, & Denon AH-D320 Phones.

  6. #6
    Join Date: Jan 2016

    Location: Hull

    Posts: 312
    I'm paul.

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    Quote Originally Posted by Macca View Post
    Does it have to be valve? Does it have to be new?

    I'd take a Radford STA15 over the Puresound any day of the week and I don't think they are anything like 6K new. A used one could be had for 1500, factor in the cost of a service and new valves, maybe 2 grand tops.
    Thanks not heard of the radford, more info perhaps? when you say: "I don't think THEY are anything like 6k new" ...what is "they"? (I did answer another thread asking if the croft series 3 'R' OTL was 6k new though)? cheers!

    Radford STA15 original/re-issue or either?

    http://www.affordablevalvecompany.com/faq9rep.htm
    Last edited by the_doc735; 26-04-2017 at 21:57.
    ARCAM FMJ-A19 + Tacima CS947, Tannoy DC6T Speakers, Tannoy TS10 Subwoofer + Tacima CS947, Sennheiser HD 558 headset, Arcam Miniblink DAC + iFI iPOWER, HP Pavilion G6* - 2382sa D0Y14EA#ABU + Creative BT-D1 [+ Azio BTD-V401]; [*using onboard battery for music listening]. + Audio Software [Room EQ Wizard, Equalizer APO, media players]. I also have a Creative Cambridge DTT2200 5.1 System, & Denon AH-D320 Phones.

  7. #7
    Join Date: Jan 2016

    Location: Hull

    Posts: 312
    I'm paul.

    Default

    OK, so here's the scenario:

    I have the Puresound 2A3 with vintage NOS valves all round (mullard/RCA/kEN rAD) RRP around 3000 with these valves fitted! I would say 1500 second hand price? Anyone want to buy it?

    Have I reached HiFi nirvana or is there room for an upgrade?

    Suggestions are: Radford & Nelson Pass.

    Don't know how I could get to hear these! ~ Local demo shops are useless because they have a vested interest in selling you their own stock (i.e. new)! If you turn up with a listed of a dozen or so secondhand amps they cannot fulfill my request + they don't have my DAC AND SPEAKERS! And there demo rooms are nothing like my particular living environment!

    It would be unrealistic to buy every amp I want to demo! The amps I want to demo would be 'used' (not new) and valve based. Shipping costs often rule out american imports (i.e. shipping costs more than the amp it self).

    Any suggestions? Should I just stick with the Puresound on the basis that there is no effective upgrade/improvement beyond this point? AND does more expensive mean better quality in sound reproduction ?

    There are amps out there costing 4, 6, 8, 10k +, but do they offer greater sonic pleasure beyond the puresound 2A3?
    ARCAM FMJ-A19 + Tacima CS947, Tannoy DC6T Speakers, Tannoy TS10 Subwoofer + Tacima CS947, Sennheiser HD 558 headset, Arcam Miniblink DAC + iFI iPOWER, HP Pavilion G6* - 2382sa D0Y14EA#ABU + Creative BT-D1 [+ Azio BTD-V401]; [*using onboard battery for music listening]. + Audio Software [Room EQ Wizard, Equalizer APO, media players]. I also have a Creative Cambridge DTT2200 5.1 System, & Denon AH-D320 Phones.

  8. #8
    Join Date: Sep 2013

    Location: North Island New Zealand

    Posts: 826
    I'm Chris.

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    Quote Originally Posted by the_doc735 View Post
    OK, so here's the scenario:

    I have the Puresound 2A3 with vintage NOS valves all round (mullard/RCA/kEN rAD) RRP around 3000 with these valves fitted! I would say 1500 second hand price? Anyone want to buy it?

    Have I reached HiFi nirvana or is there room for an upgrade?

    Suggestions are: Radford & Nelson Pass.

    Don't know how I could get to hear these! ~ Local demo shops are useless because they have a vested interest in selling you their own stock (i.e. new)! If you turn up with a listed of a dozen or so secondhand amps they cannot fulfill my request + they don't have my DAC AND SPEAKERS! And there demo rooms are nothing like my particular living environment!

    It would be unrealistic to buy every amp I want to demo! The amps I want to demo would be 'used' (not new) and valve based. Shipping costs often rule out american imports (i.e. shipping costs more than the amp it self).

    Any suggestions? Should I just stick with the Puresound on the basis that there is no effective upgrade/improvement beyond this point? AND does more expensive mean better quality in sound reproduction ?

    There are amps out there costing 4, 6, 8, 10k +, but do they offer greater sonic pleasure beyond the puresound 2A3?
    Hi Paul
    Remembering a power amp in most cases just faithfully obeys to amplify. If it is doing anything else
    then it is not a true amplifier. A amplifier is chosen to usually match well to a loudspeaker, to be reliable
    and to sound good as a result of having very low distortion.

    Quad put some solid work into making power amps. I would try to get to hear a 909, or a 306 before
    committing vast sums of money on any other types. I use 2 x 306 amps using one channel of each
    amplifier per channel. I achieve some of the best audio I have ever heard.

    I would above all though concentrate on attenuation, as it is where audio gets lost if ignored, and where if correctly chosen where audio is magnificent if done correctly. In other words you could be amplifying perfectly, but not enjoying at all what you are amplifying.

    Cheers / Chris

  9. #9
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 17,114
    I'm Martin.

    Default

    Quote Originally Posted by the_doc735 View Post
    Thanks not heard of the radford, more info perhaps? when you say: "I don't think THEY are anything like 6k new" ...what is "they"? (I did answer another thread asking if the croft series 3 'R' OTL was 6k new though)? cheers!

    Radford STA15 original/re-issue or either?

    http://www.affordablevalvecompany.com/faq9rep.htm
    Review of the re-issue Radford here http://hifipig.com/radford-sta15-ser...sue-amplifier/

    You will need a high quality pre-amp to get the best out of it, which is what Chris was alluding to. If I was buying a valve power amp it is what I would get. review is from 2012 so I guess the price will be higher now.
    Last edited by Macca; 27-04-2017 at 07:39.
    Martin



    Current Lash Up:

    Technics SL1200 with Sumiko h/s & Nagaoka MP50 * Firebottle valve MM phono stage * Parasound CDPi1000 * 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. #10
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 34,501
    I'm Grant.

    Default

    You might be best attending some bake offs and shows like nebo etc to hear whats out there and chat with the like minded.
    Last edited by struth; 27-04-2017 at 07:46.
    Regards,
    Grant ....
    Sometimes incompetence is useful. It helps you keep an open mind.
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    IMUTO TAURUS X4 BATTERY SUPPLY. - RPI2B & AUDIOPHONICS DAC running MOODE 3.7- TONBRUX BATTERY SUPPLY & CHROMECAST2 AUDIO DONGLE no1 - JBE SERIES 3 SLATEDECK & EMOTIVA XPS-1 PHONO - DENON DV2900 - TWIN PRO MONOBLOCK AMPLIFIERS. - XIANG SHENG DAC\PRE\HEADPHONE AMP. -AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER22, SPOTIFY PREMIUM- KINPS CABLES, SMSL M6 MINIDAC, CHROMECAST2 AUDIO DONGLE no2 POWERED BY ANKER BATTERY PSU - FULL RANGE TWIN & SINGLE TELEFUNKEN's - Q ACOUSTIC BT3 actives - CANTON SUB - TANDBERG TCD310 CASS - CARTS.. ACD xlm mk1 integra, AT95SA Shibata, SHURE N55 SAS, SHURE M55E original, JVC MD1029. - RCA CABLES BY BRIAN SPKR CABLES BY MOI HAIR BY MARCO FEET BY ELECTRICBEACH - MAINS REGENERATED BY POWERINSPIRED AND FILTERED BY BELKIN PUREAV.

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