OK Gang... here goes my first attempt at managing this process.
Comparative Music Information
To be somewhat systematic and disciplined, I compiled the below playlist for comparative purposes, played back in the following signal path
iMac/Audirvana 2.6.8> Nordost Blue Heaven 2M USB cable > iFi iPurifier > Schiit Gungnir Multibit > Schiit Mjolnir 2 > HiFiMan HE-1000’s (V1) > my ears made of stone
Once I am done with the tubes, I will then swap over to the LSST's and see how they are
PLAY LIST (no sniping on the songs
)
Mark Knopfler - Sailing to Philadelphia
Pet Shop Boys / Dusty Springfield – What Have I Done to Deserve This?
Dire Straits – On Every Street
Marc Cohn – Silver Thunderbird
Jackson Brown – Stay
Warren Zevon – Lawyers, Guns and Money
U2 – With or Without You
George Winston – Longing /Love
Steely Dan – Reelin’ In the Years
Randy Newman – Dixie Flyer
Chumbawamba – Tubthumping
Bozz Scaggs – Lido Shuffle
Everything But the Girl – Downtown Train (Acoustic)
Kenny Rogers – The Gambler
Tina Turner – Don’t Leave me this Way
Ida Sand – Bang Bang
America – Ventura Highway
America – Don’t Cross the River
Kim Karnes – Betty Davis Eyes
Kodo Drummers HEARTBEAT – Kyosui (O-Daiko)
Bob Dylan – All Along the Watchtower
Sarah Menescal – The Game of Love
Steven Osborne - Pictures at an Exhibition: Great Gate of Kiev
Katia & Marielle Labèque – Rhapsody in Blue
Nina Simone – Sinnerman (Live NYC 1965)
Yo-Yo Ma – Air and Simple Gifts
Roman Perucki: Bach – Air on G string (Ste #3 in D major BMV 1068)
Lianne La Havas – Don’t Wake Me Up
The Guess Who – American Woman
George Winston – Riders on the Storm
Jacques Rouvier – Pictures at an Exhibition: Great Gate of Kiev
Don McLean – American Pie
Roy Orbison – Pretty Woman
Christian McBride – Car Wash
Amber Rubarth – Sneak (NB: simply astonishing separation and huge sound stage)
Amber Rubarth – Full Moon in Paris
Jazz at the Pawnshop – “Limehouse Blues” and “I’m Confessin’”
Deep Purple – Smoke on the Water (Live in Japan)
Enzo Pietropaoli – Bridge Over Troubled Water
Comparison 1
Schiit stock 6BZ7’s and “Black Sable” JJ/Tesla E88CC’s
The stock Schiit 6BZ7’s are certainly respectable tubes. For me, they are a jumping off point for experimentation. Overall, the soundstage is adequate and the bass OK, yet I feel the tubes are a bit too bright. “S” sounds in a song (as in Kim Carnes “eyessssssss” phrasing) become far too sibilant and piercing to my ear. The sense of the human voice and the flow of air when making such a sound is lost in harshness. Bob Dylan’s “All Along the Watchtower” harmonica was painfully sharp.
The Black Sable’s offered a wider left-right sound stage sense and a better high frequency treatment, though could just begin slipping into that harsh sibilance mentioned above (for example in Sarah Menescal’s The Game of Love) Bass was tight yet some of the very deep growly notes on a piano sounded a tiny bit muddied together (Rouvier’s Pictures at an Exhibition. Overall, the Black Sable has an “average voice” that is a tiny bit too biased toward the higher frequencies. I like warm rounded human voice as well as resonant bass with lots of overtones. The Black Sables don’t quite deliver here as I would like.
The Black Sables provided a clear and detailed sound stage without veiling; the Schiit 6BZ7’s were – comparatively – veiled with a sense of a lot of stuff packed on top of each other.
Comparison 2
“Black Sable” JJ/Tesla E88CC’s and Genalex Gold Lion E88CC’s
The Black Sable’s seem a “hotter” tube the Gold Lion’s. I had expected the opposite experience vs the descriptions and commentary elsewhere. Compared to the Gold Lion’s, the Black Sables are bright, much as the Schiit OEM 6BZ7’s were bright compared to the Black Sables. The bass in the Gold Lion’s seemed to provide a better soundstage dimensionality and resolution (sense of “where” the string or key is). For example, in Rouvier’s “Great Gate of Kiev” and Winston’s “Riders on the Storm,” the lowest piano notes felt as if you could reach out and touch each of those gloriously vibrating cord-like strings.
Perhaps the Gold Lion’s were also warmer and less “hot” on the high frequencies, yet detail in the bright notes was maintained. Still, as an overall listening experience, the Gold Lion’s still are not as warm and mellow as I would like. Perhaps the sound of the Gold Lion’s is closer to “neutral” compared to the Black Sable’s. The tube is very friendly to both male and female voice. Tracy Thorn’s voice in Downtown Train is beautifully presented and the tremolo in her extended notes simply beautiful and Dylan and McLean are portrayed in a natural way.
Both the Black Sable’s and the Gold Lion’s seemed a tad restrained. Perhaps that is my sense of missing warmth that causes me to think that.
Forthcoming: Next for listening and then commentary… the Philips Miniwatt SQ E88CC’s (quick initial hint... huge soundstage and great sense of space and detail vs the Black Sable.. more to come)
Happy listening.
If there are any DECWare Zen TabooIII owners in the San Francisco Bay Area, I would like to connect with you so I might listen to the amp.