|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
73.81.128.71
In Reply to: RE: Need some guidance on my new M400-s mono amps posted by AmadeusMozart on June 17, 2021 at 00:39:49
Thank you for your response. I will definitely look into the eBook you suggested. Sounds like a good launching point for me to get acquainted.Bias test and set on these amps is pretty simple for me and have done the stock 34s as well as the upgraded 34s in now. Manual states .40 and that is where I dialed both sets into.
I assume changing out the 6922 or12au7 would mandate a bias check on output tubes?
Edits: 06/24/21Follow Ups:
The bias on the output tubes should be independent of the small tubes.Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 06/17/21
Thanks, I was not sure if the 12au7 driver tubes would change the drive of the output tubes. I honestly have a bit to learn when it comes to tube amplification and will listen to you all and read up as well.
Only if the 12au7s are direct coupled to the output tubes.
Do you have a schematic?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Tre, I do not have a schematic and the owners manual is fair at best with minimal description on typology. This is pretty much why I came here to post for help. I came up short on really good technical info that could lead me in the direction of what type of build these are based on and how to pursue the ringing out of performance possibilities. I got them on a great deal new old stock and have owned other Opera / Consonance gear before and recently acquired an M100+ integrated to play with. These monos are very nice sounding out of the gate for what I paid and with my current gear.
Post detailed pictures of the underside with the bottom off.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
@Tre'
Hope these show enough to give some indications.
The 12au7 is for sure the driver stage. It is cap coupled to the grids of the output tubes. The bias setting on the output tubes will not change when you change the 12au7 or the 6922.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Thank you for asking me to do this and for your response back! I truly appreciate the time and effort in helping me out..
Will give that a go this weekend and post up the innards. Thank you!
I would do it now but I am in DEEP currently listening to my system... 9:47 pm EST and need this session to erase the stress of the day. Thank god music is my drug of choice and works like a champ for me.
Edits: 06/18/21
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: