2359glenn | studio
Jan 6, 2018 at 2:18 PM Post #17,718 of 39,986
According to my hot lab here, this is a gold award tube combination. HD800 is singing as sweetly as Utopia now. :)

Mullard ECC31 and 6BX7s.

20180106_163045.jpg
 
Jan 6, 2018 at 3:24 PM Post #17,720 of 39,986
5 days into a month's anniversary with Glenn's OTL amp, I'm super impressed with what I hear. Just finished listening to Maurice Ravel Bolero by the London Symphony Orchestra conducted by Valery Gergiev. GOTL handles fine delicate instrumentals as well as Rock like a maestro conductor. Congrats on those who have put themselves on the queue for this amp. You have no idea what awaits you. :)
 
Jan 6, 2018 at 4:51 PM Post #17,721 of 39,986
Could people tell me if there is a special tube combination with GOTL that can really flatter relatively poor recordings, e.g. some 70's rock CD's. I'm wondering if there is such a combination, that is very forgiving of most recordings, when trying to put "lipstick on a pig", so to speak. I have lots and lots of those CD's, so I would be very interested to know.

Ha I have just the tube combination for you. It's Mordy's favourite driver - Foton 6N8S with 6BX7s. This will rock you. :gs1000smile:

Foton with 6bx7.jpg

Then listen to this classic rock and you will be swinging like the crowd.
 
Jan 6, 2018 at 5:07 PM Post #17,722 of 39,986
I grew up with classic rock and I love the Immigrant Song. This movie trailer is cool and you have to hear it on GOTL driving Atticus. It will move you.

 
Jan 7, 2018 at 2:27 AM Post #17,727 of 39,986
While Sydney hits a record high temp of 47.5c today, I stayed indoor in air-con comfort to sample some drivers on GOTL. Power tubes are 6 x 6BX7.

These are the top contenders for best drivers from my collection:-

Siemens C3G (more microphonic than the others)
Sylvania 6sn7w metal base
Tung Sol 6F8G black round plates
Mullard ECC31
GEC B36
Marconi B36 metal base

All excellent tubes and I can't really pick a favourite right now. TS 6F8G is in the driver's seat now and my smile is as wide as the ocean.
 
Jan 7, 2018 at 3:23 AM Post #17,728 of 39,986
Looked at my Foton tube - it seems reasonable that your tube is from 1966. The 1952-55 ribbed anode tubes are better sounding IMHO, but the 60's tubes are nice as well with very good bass.

Are yours Melz? That's probably one driver I would like to try. One with perforated plates and the number 1578 etched on it. Probably the best of the Russian 6sn7 equivalent.
 

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