Does anyone know the proper valve complement for the Croft Epoch? It looks like I've been sold an amp with incorrect valves, but that's ok, I'm happy to learn and experiment.
Does anyone know the proper valve complement for the Croft Epoch? It looks like I've been sold an amp with incorrect valves, but that's ok, I'm happy to learn and experiment.
SS
CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10
VALVE
PRE Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker
Location: Belfast, NI
Posts: 147
I'm David.
Andrew,
I believe there may be a number of combinations of valves used in Epochs, depending on the version. Glenn upgraded the PSU of mine and it now uses 1 x ECC83, 1 x 85A2 and 2 x 6SL7 (line level only version).
Before Glenn's upgrade mine was a standard Epoch V. I will check later what valves the original PSU used, for your reference.
Kind regards,
TD
Source 1: Lenco GL75, Kuzma Reference; Source 2: Geoff Bull-modified TDA1541A S2 Marantz CD94/CD85; Source 3: Leak Troughline 3; Source 4: Nakamichi DR1. Preamplifier: Croft Epoch; Phono stage: Rotel Michi, AI SUT; Power amps: Leak TL12 plus/ Leak ST60 both Classique Sounds rebuildss; Integrated solid state amplification: Primare I30; Speakers: Sonab OA4/ B&W DM3/ ESL57.
David,
Thanks. Looks like mine has x5 6H9C, x1 6GV8 & and I think? x1 85AZ
I need to do a little research into the variants of valves, time consuming but interesting.
SS
CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10
VALVE
PRE Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker
It should use 1 x ECC83, 1 x 85A2, 2 x 6SL7 (Line) 1x 6SL7 (middle) 2x 6SL7 (Phono)
In terms of upgrades it depends on how far you want to push it. But the external PSU makes the biggest difference IMO.
You can roll valves in there and also gain a superb upgrade. Sylvania's in phono, Melz in Line. The middle valve also plays a big part in the sound. I use Brimar in that position.
The 85A2 IMO should be Mullard. And the ECC83 should be something like a NOS Mullard, Tungsram, Tesla or an Amperex BB.
Of course it's all down to taste and you need to live with it and take your time to get the very best out of it.
Hope that helps
Jo
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
Shit! Mine looks nothing like that. I'm really gonna have to fresh look at whats sitting in their.
SS
CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10
VALVE
PRE Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
Hi James.
Sure, the depth and the clarity of the sound was so much more easy to listen to. Everything became effortless, timing was spot on and the bass became tighter and more focused.
To be honest, although I did expect some differences, I didn't expect that much of a difference. In time everything just gets better too.
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
6H9C/6H9S are Russian equivalents of 6SL7 and also available from China. 6GV8 is a triode-pentode similar to ECL85 and probably in the regulator.
Well I've done a little more digging. The x5 6H9C v111 77 valves turn out to be Russian alternatives to 6SL7's but reportedly with a little more gain. So in essence those valves are correct. I'd still like something better as I'm unsure of the valve brand. I missread the 85A2 as 85AZ, so no wonder I can find no info on that valve , and with regards the ECC83, well I happen to have a few spare Mullards . I'm off to the boozer now but I can see some research over Sunday's hang over and maybe an order going into Watford Valves.
SS
CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10
VALVE
PRE Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker