Ming DA MC 84C07 tube recommendations - Page 4

Quote:

Originally Posted by mhcarlos 

Thanks for the can suggestions. I read that the HD800 and T1 were picky with amps. I'm actually curious about the LCD2 the most. Those cans are quite a bit more expensive, but I'll probably look into their synergy with my amps though...

 

The M-stage-- I try to remind myself that it started out as a clone of the BCL which is four times more expensive. I didn't know that the design was chosen to debut the HD800, though.

I've heard the 800s on my M-Stage and it had no problems powering it with wonderful results.

I just noticed your avatar...you must have created it yourself, clever.

Anybody try using 12AT7 or 12AU7 in place of the 12AX7 in this amp?

I have not.  A 12AT7 might work, but a 12AU7 might not because has only 19% of the gain of a 12ax7.  Check out this link that explains the 12 series tube gain.

http://thetubestore.com/gainfactor.html

OK thanks, I was asking because I have had good success mixing & matching all those tubes with my power amp & CD player. Was not sure about the circuit for the Ming Da, I read somewhere that some circuits will not take the AT7 as direct relacement. Even though this amp has been around a while, I think it still stands as a real bargain.
 

Quote:

Originally Posted by DavidK35 

Anybody try using 12AT7 or 12AU7 in place of the 12AX7 in this amp?

Quote:

Originally Posted by DavidK35 

OK thanks, I was asking because I have had good success mixing & matching all those tubes with my power amp & CD player. Was not sure about the circuit for the Ming Da, I read somewhere that some circuits will not take the AT7 as direct relacement. Even though this amp has been around a while, I think it still stands as a real bargain.
 

the mingda can handle 12at7 and 12au7. although if you aiming for the lower gain there will be not much difference between them.

Great, thanks for all your help.
 

I just remembered that I have run 12at7s in my Ming Da.  When I got Beyers new T70 HP, it was way too bright with this amp.  Rolling in a pair of 12at7s solved this problem.

Anyone tried the MC84C07 MK II version.

Has a high/low impedence switch instead of CD/PC switch for 8-600ohm headphones.

Improved components according to the blurb, looks more attractive too, but way more pricey.

Quote:

Originally Posted by DavidK35 

Anyone tried the MC84C07 MK II version.

Has a high/low impedence switch instead of CD/PC switch for 8-600ohm headphones.

Improved components according to the blurb, looks more attractive too, but way more pricey.

 

 

I guessed they heard the complain most have on low impendance can.

Since this amp had a very good reputation a while back here at Head-Fi, I wonder who's still using it and what are their newest thoughts about tube rolling? 

I still have it and still think it is a great amp.  I've stuck with Gold Lion EL84 reissue power tubes.  Have rolled a bunch of vintage driver tubes.  Have found that 12AT7s tame the sizzle on Beyer T70s.   Mazda 12AX7s have spent a lot of time in the amp with other cans.