Hi guys! I'm placing my question here because I just trust my fellow SET amp users to be able to answer this question. I use a Musical Paradise MP-D2 tube DAC. It uses two 6DJ8/7308 type tubes per channel --{I'm using two Russian Voskhod "rocket logo" 6N23P tubes}-- as well as a one Amperex 5AR4 rectifier tube.My question is this, I've had quite a few people tell me that I would not believe the level of sonic improvement I would hear if I switched to using a high-quality Sophia Electric 274B in place of the Amperex 5AR4 tube. What do you guys think? Should I switch to the Sophia Electric 274B tube in place of the Amperex 5AR4?
I really valued all the encouragement and input you guys all gave me when my Mastersound amp needed to be repaired at the end of 2020 and the beginning of 2021, so I'm trusting in your input once again! Thanks again guys...
Thetubeguy1954 (Tom)
Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
Edits: 08/09/21
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Topic - Mastersound Reference 845 SET Amp - thetubeguy1954 03:05:27 08/09/21 (20)
- "I would not believe the level of sonic improvement" and you should not - Chip647 17:36:17 08/28/21 (13)
- RE: "I would not believe the level of sonic improvement" and you should not - thetubeguy1954 22:12:32 09/01/21 (11)
- RE: "I would not believe the level of sonic improvement" and you should not - Tre' 06:24:19 09/02/21 (9)
- RE: "I would not believe the level of sonic improvement" and you should not - thetubeguy1954 12:37:06 09/04/21 (3)
- RE: "I would not believe the level of sonic improvement" and you should not - Tre' 19:39:57 09/06/21 (2)
- RE: "I would not believe the level of sonic improvement" and you should not - thetubeguy1954 15:52:06 09/11/21 (0)
- You inductive logic ignores the deductive logic that science does not always know what to Test FOR-nT - Cleantimestream 17:06:00 09/08/21 (0)
- I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - Ivan303 15:24:48 09/02/21 (4)
- RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - thetubeguy1954 12:41:24 09/04/21 (2)
- Replaced British made metal base GZ34 with a US made NOS 5U4G. /n - Ivan303 14:22:19 09/04/21 (1)
- RE: Replaced British made metal base GZ34 with a US made NOS 5U4G. /n - thetubeguy1954 15:53:48 09/11/21 (0)
- RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - Tre' 15:28:54 09/02/21 (0)
- Well said. nt - RPMac 05:16:08 09/02/21 (0)
- Well, that explains mercury vapor ones sounding superior... I believe it is more complex than that, though~nT - Cleantimestream 09:06:22 08/30/21 (0)
- RE: Mastersound Reference 845 SET Amp - deafbykhorns 17:45:01 08/11/21 (1)
- RE: Mastersound Reference 845 SET Amp - thetubeguy1954 22:25:55 09/01/21 (0)
- RE: Mastersound Reference 845 SET Amp - Rocket_Powered 06:37:01 08/09/21 (0)
- I would ask the people who gave you the info - Bas Horneman 03:42:03 08/09/21 (2)
- RE: I would ask the people who gave you the info - thetubeguy1954 05:18:38 08/09/21 (1)
- Hi Tom. Depends on the first capacitor after the rectifier - Bas Horneman 06:19:23 08/09/21 (0)