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Thread: 6sn7 and 6sl7 nos or modern which is best

  1. #1
    Join Date: Oct 2009

    Location: Birmingham, UK

    Posts: 306
    I'm Phil.

    Default 6sn7 and 6sl7 nos or modern which is best

    Has anyone compared tunsol of old against the modern type , I'm currently running a pair of ming da monoblocks , 6sn7 6sl7 and el34 power vale
    jinvina 805 , I have replaced the new tungsol el34 with rtf and it has slightly more body and less edgy top end than the modern tungsol , its better I
    think , I have never tried swapping the 6sn7 and 6sl7 , I have read that the melz is a great sounding valve , I have had most 12au7 12ax7 and like
    the old rca and tungsol , finding mullard to coloured and lacking top end , I'm not a lover , but tend to like the usa type valves especially old tungsol
    has anyone gone down this road , cheers phil.

  2. #2
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 2,702
    I'm Tom.


    The Tung Sols are pretty good. (6SN7)

    However I got fantastic results with Sophias and TJ Full Music, which I think may be the same tube re-labelled.

    Wonderful synergy with my old Puresound 2A3 and Tannoy Golds.
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 / Ortofon 309 Limited tonearms; Cartridges Stereo - Miyajima Madake, Ortofon SPU Royal N + Shure M3D Jico stylus; Mono - Miyajimas - Zero 0.7, Premium 1.0 retipped by Ana Mighty Sound bamboo cantilever, Spirit '78' 3.0 conical from Ana, also vintage GE VRII, Shure M44 strapped for mono with several Expert Stylus conicals for different eras of 78s; Phono stage and SUT from EAR 912; Esoteric Sound Re-Equalizer for equalisation of early mono and 78, switchable in from tape loop; Digital: Audio Note CDT2/II transport, heavily modded AN Kit DAC + Mutec MC3+USB.

    Study: Speakers - Tannoy DC6; Amp: Duncan 'Tuberhunter' 200w class D; preamp - Pass DCB1; Vinyl: Garrard 401 with AT1503 tonearm and vintage SPU-GE; SUTs - Ortofon 2-15k & Bob's Devices; Phono Stage: Schiit Mani; Digital - Trichord Genesis III CDP + Arcam rBlink; Schiit Multibit DAC.

  3. #3
    Join Date: Oct 2011

    Location: London Town

    Posts: 2,063
    I'm Julian.


    Once I installed a quartet of TAD 6SN7 in my preamp I stopped tube rolling... I got the extended treble I was missing and find them much more even handed and neutral than vintage tubes I tried...
    The Source - Kuzma Stogi - AT33 PTG/II - Fidelity Research FRT-3 - Conrad-Johnson EV-1 - Consonance Cyber 222 mk2 - Philips DC380 - Shanling CD-S 100 MK 11 - Toshiba ST-420 - Tannoy Chatsworths

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