What are they for Rob?
Barry
For my buffer stage. It has two valves rather than four, so two will go in the ‘cupboard of Hi-Fi paraphernalia’ for a couple of years or more.
They should do 10000 hours anyway, or about 10 hours 365 days a year for the next 3 years!
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
MONO
Pre Croft Epoch Power Sondex S100 Deck Garrard 301 Tonearm SME 3009 Cartridge SPU MONO mk II Phonostage Croft Music Maker Speaker Quad ESL 57 Cables Tonearm SME IC - Duelund Realsound Speaker SEAC 850C
Ah - your AD Audio design. Are they an alternative to the 6N9Ss?
Barry
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
MONO
Pre Croft Epoch Power Sondex S100 Deck Garrard 301 Tonearm SME 3009 Cartridge SPU MONO mk II Phonostage Croft Music Maker Speaker Quad ESL 57 Cables Tonearm SME IC - Duelund Realsound Speaker SEAC 850C
What he said. The 5691’s are the holy grail of 6SL7 replacements. I have the Melz 6H9Cs in at the moment, which are very very good indeed, but these are the best of the lot apparently.
The buffer is on around 14 hours a day (on when I wake up, off when I go to bed - the system plays pretty much all day). That’s about 5,000 hours a year so these should do me four years, or more hopefully.
Have you got the 5 hole version of the Melz? If so, interested in selling?
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
MONO
Pre Croft Epoch Power Sondex S100 Deck Garrard 301 Tonearm SME 3009 Cartridge SPU MONO mk II Phonostage Croft Music Maker Speaker Quad ESL 57 Cables Tonearm SME IC - Duelund Realsound Speaker SEAC 850C
No sadly, they’re the solid anode version. Although I can’t imagine how much better the holed versions are - they are absolutely incredible valves!
They are the metal base OTK versions of course.
Crikey o’blimey! These 5691s are GOOD! The differences between these and the excellent 1950’s Melz metal base OTK 6H9Cs are not vast, but there is a difference. I’ve only had the 5691s in for half an hour so they’re only really getting into their stride, but the noticeable areas are bass weight (deep and clear, and also more impact) and the presence in the midrange.
I’m only watching the tele at the moment (Lucifer - if you haven’t seen it, it’s great!) but even with Netflix’s fairly poor audio processing, the 5691s show their prowess. I’ll do some serious critical listening after I have a couple of dozen hours on them, but already I’m impressed.