Anyone heard the Ming Da MC34AB

I just got myself a mc34-ab, my first tube-amp. Tesla NOS EL34's and I use it as a power amp. Sounds wonderful, driving my Zu Druids. Source is a Resolution Audio Opus 21 CD player that includes a good pre. I use the Opus as a DAC, and I feed it from a PC's hard drive through a M2Tech - HiFace (better sounding than using the CD-player!). And also there is a simple monster + MCintosh filtering setup for the AC power. That's my system.

Now it has blown tubes for me two times:
First time - the two mid-sized (driver?) tubes, now replaced to my satisfaction
Second time - the two right-most (seen from the front) EL34's. Cold and non-glowing but still there in the sockets the amp sings even better...

So here are my questions:
Can I remove the corresponding EL34's for the left-channel, to see if sound improves there too, or is that a hazardous experiment

Previous owner had no issue with tubes blowing during two years of ownership, why does tubes blow in my ownership?

FXbill, please if you have the schematic, I'm interested to have a copy, and I'll go for the mods you propose.

BR Zumas

Hi
DO NOT remove tubes from a powered tube amplifier, the heater voltage will shoot up and probably burn the heaters of the remaining tubes.
I suggest that you have the amp checked by a technician.

Owned one for almost 3 years....
NO electrical problems so far and no valve failure
replace the input tubes for NOS, that includes the 6SN7's I use the JJ KT77's as outputs although I may go Genelex 77's next time round or EH EL34's as a standby.
I replaced all the inputs then the blue Ginvina's (EL34) That was like a whole new amp, far clearer and precise mid range, better base and base was tighter, only downside is the top end is still a little harsh on on AAD for my ears on AAD recordings.... I did read reviews on various valves and the comment was that the JJ's tend to be a little 'toppy'... other serious contender for EL34 is the Winged C (svetlana)
Other comment... I often run this amp all day at weekends 8-13 hour stints. The power 'humpty' never gets hot and I can 'rest'my hand on the EL34/77's without getting burnt.
If the valves run this 'cool' may be why my valves are still 'good' after almost 3 years, tested on an AVO VCM 163
THE rolls royce of Tube Testers

One note of caution. Make sure you know where these units came from. Go direct to Meixing factory and find out who is supplying them here. Stay away from ebay and if you buy one here get varification where it came from. The MC2A3 pre amp is arguably the best price to performance piece of gear around. Now they have a new MC300 pre amp that looks even more promising.

hello,fx bill i hope you can send the schematic
of the ming-da mc34-ab
regard,s bertus