Bought 2 pairs. Then in each channel I put 1 tube from each pair (so 2 tubes in each channel, but so they are mixed between the purchased pairs). When I put a whole matched pair into each channel, I noticed a level mismatch between left and right. When I mixed the pairs together, that went away. Probably not as ideal as a matched quad, but it has been working well since.You bought 2 pairs (4 tubes) but you used only 2 tubes, for each channel?
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Xduoo Amplifiers
- Thread starter JoeDoe
- Start date
Thanks for the explanation, are these tubes tall as the stocks?Bought 2 pairs. Then in each channel I put 1 tube from each pair (so 2 tubes in each channel, but so they are mixed between the purchased pairs). When I put a whole matched pair into each channel, I noticed a level mismatch between left and right. When I mixed the pairs together, that went away. Probably not as ideal as a matched quad, but it has been working well since.
Yep yep, they look exactly the same dimension-wiseThanks for the explanation, are these tubes tall as the stocks?
CADCAM
Headphoneus Supremus
I have the Xduoo MT-602 and just saw the Xduoo MU-602 DAC, can anyone point me in the right direction to get any info on this? Can't find anything...
Winter Sky
New Head-Fier
I have ta-20 What tubes are suitable for acoustic,vocals songs?
S Crowther
500+ Head-Fier
Amperex bugle boyI have ta-20 What tubes are suitable for acoustic,vocals songs?
I have just bought Psvane 12au7-S tubes, the vocals come forward with these tubes, so I think they would be suitable for that kind of music.I have ta-20 What tubes are suitable for acoustic,vocals songs?
Hey guys, just wanted to ask about socket savers, since they are quite recessed, how do you remove them? I am hesitating to buy ones.
Winter Sky
New Head-Fier
Thank You but The price is too high for me.Amperex bugle boy
Thank for detail, Have you listened to jj ecc802s?I have just bought Psvane 12au7-S tubes, the vocals come forward with these tubes, so I think they would be suitable for that kind of musicThan
No, I haven't. I have read that they should be warm and bassy, but not on par with tubes that cost twice as much. I am thinking about 12at7 tubes and maybe I will try JJ's here.Thank You but The price is too high for me.
Thank for detail, Have you listened to jj ecc802s?
@Winter Sky
The TA 20 can use 12bh7/12bh7a tubes I find they sound incredible and don’t cost a fortune. Just be aware they run a little hotter so occasionally it will tigger fault protection (just turn it off and turn it back on usually fix’s the problem)
Being a larger tube the tube protecter won’t fit but felt the benefits outweighs the disadvantages. If want to stick with 12au7 the RCA cleartop is a good choice.
How much is you’re budget?
https://audiofool.reviews/tube-rolling-the-xduoo-ta-01b-ta-10-and-ta-20-12au7-amps/
The TA 20 can use 12bh7/12bh7a tubes I find they sound incredible and don’t cost a fortune. Just be aware they run a little hotter so occasionally it will tigger fault protection (just turn it off and turn it back on usually fix’s the problem)
Being a larger tube the tube protecter won’t fit but felt the benefits outweighs the disadvantages. If want to stick with 12au7 the RCA cleartop is a good choice.
How much is you’re budget?
https://audiofool.reviews/tube-rolling-the-xduoo-ta-01b-ta-10-and-ta-20-12au7-amps/
Last edited:
CADCAM
Headphoneus Supremus
I accidently left my MT-602 on after a quick listening session and came back into the room to shut some shades for the night and noticed it on as well as my SMSL SU-8 DAC.
Couldn't help a quick listen and was surprised to hear better more defined bass and overall it honestly seemed to sound better than ever!
It certainly seems like leaving it on for 7 to 8 hours did some good toward an overall improvement in SQ. I don't think I'm comfortable leaving the tubes on all that time in standby mode but I will increase my warmup time on this amp to maybe an hour before I start listening.
I'm still listening...
Couldn't help a quick listen and was surprised to hear better more defined bass and overall it honestly seemed to sound better than ever!
It certainly seems like leaving it on for 7 to 8 hours did some good toward an overall improvement in SQ. I don't think I'm comfortable leaving the tubes on all that time in standby mode but I will increase my warmup time on this amp to maybe an hour before I start listening.
I'm still listening...
Last edited:
I have had TA-20 amp for several weeks now and I am using it with Meze 99 Noir and Audeze LCD-2C headphones. I absolutely love it with 99 Noir, however it feels underwhelming with LCD-2C. Is anyone using this amp with Audeze heapdhones? I am using the TA-20 with Psvane Art 12AU7-S tubes.
Don't ask me for technical details, but tube amps and planar headphones are normally not a good match.
jonathan c
Headphoneus Supremus
What is ‘underwhelming’ about what you hear via LCD-2C? The TA-20 is a hybrid h/p/a: the 12AU7 tubes are in the preamp stage and transistors are in the output stage. The maximum output @ 32 ohms for TA-20 is 2000 mw; the recommended level for LCD-2C is 250 mw. OK, there! So …. possibly a change of tubes? ….I have had TA-20 amp for several weeks now and I am using it with Meze 99 Noir and Audeze LCD-2C headphones. I absolutely love it with 99 Noir, however it feels underwhelming with LCD-2C. Is anyone using this amp with Audeze heapdhones? I am using the TA-20 with Psvane Art 12AU7-S tubes.
Last edited:
Users who are viewing this thread
Total: 3 (members: 0, guests: 3)