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Responses from jsbw

Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
Update:    after a bit of tube rolling, I’ve settled on two sets of tubes, and left it at that. When I feel the itch to switch, I simply change one for the other. haven’t missed the McCormack at all. But now I’m developing an obsession with lo... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
My new Dennis Had Inspire arrived today.   Holy SH!T this was the absolute right choice!  
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
I sold the DNA-1, bought some Klipsch LaScalas, and suddenly realized that the McCormack’s thick low end combined with the anemic low end (compared to the Cornwalls’) of the LaScalas would have likely been a lovely combination.   Oh well.    De... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
@pinwa his latest single-ended pentode with a pair of KT88s, a 6sn7 and a 5u4g. I hope the combo is magic, because I’ve spent the last year (and many hundreds of dollars) rolling tubes into my Jolida.  
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
Well it’s been a minute. I’ve since upgraded speakers to a pair of ‘85 La Scalas (Dean Westcott modified AAs are on the way). Cornwalls are now being powered by a Harman Kardon 430 fed by an old MacBook Pro and Topping D10s in my office. I like t... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
If you are going to keep the Cornwalls, then the DH low wattage tube amp is the route. Highly efficient speakers like yours @ 102 db sensitivity like low power. Its not about which amp is best. They both have their place. The DH tubes belong in y... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
 I’ve heard upgrades II, V on the Jolida and I’m a former DH SEP Hot Rod amp owner, fwiw. Upgrades I through V on the Jolida is worth the price of admission. Add PSVANE KT88 output tubes and good matched NOS small signal tubes, and it sounds nice... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
I own the KT88 Fierebottle amp by Dennis Had. I have had a blast with it but I am a bit of an odd fish to say the least. My system sounds amazing with it but for me being able to try different tubes is a big draw. I love the tubes themselves and ... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
Already had several chats with Patrick, Patrick.😁 He’s been really helpful. Thing is, I just don’t know what the amp will sound like. I just dropped $1200 on it, and it sounds good, but not "the performer is in the room with me" good (because 25 ... 
Upgraded McCormack DNA-1 or Dennis Had Inspire SEP?
It’s good, no doubt. And there’s that whole "not tearing my hair out trying to find the perfect tube combo." But...I need...more.  
Anyone try using a 5751 in place of a 12AT7?
The amp’s a Jolida Fusion 3502p running in ultralinear, with KT88s. All power tubes are still within bias spec with 5751s as power drivers. Seriously, the 5751 seems to add a bit of detail. Especially in the higher frequencies. (Tbh, the differenc... 
Anyone try using a 5751 in place of a 12AT7?
The 12bh7 was just an experiment, without impressive results (but not unimpressive...just, meh).No, the main question here is, has anyone used a 5751 in place of a 12at7, especially in a power driver stage?  
Replace a 12at7 with a 12av7?
" I don’t know if you tried them, but NOS Mullard 6201 are a great 12at7 variety and they sound incredible in my preamp "I've been using some NOS GE 6201s and I really like them as well. Picked up som NIB Mullard CV4024s...how different could the... 
Replace tubes in Black Ice 3502p
Curious if you went ahead with the 150s. I have a 3502p myself--bought it a year ago.  Swapped out the stock Tungsol 6550s with GL KT88s--great improvement. Considering a quad of KT77s. But man, I have developed QUITE the collection of 12ax7 and 1...