answer to zman01
Thanks zman01!
We can't stand still.....
Crazy amplifier builders
Have a good day!
Dirk
Thanks zman01!
We can't stand still.....
Crazy amplifier builders

Have a good day!
Dirk
We can't stand still.....
Crazy amplifier builders![]()
True that and keep building!

.
Then more listening tests.
But I think I should describe that in the M2X-thread? This is 'pictures of your diy Pass amplifier' - thread?
Do that in both threads. 🙂
answer to MEPER
Hello Meper,
do you mean wtih 'braided screens' my braided cables?
If you mean that, than they are real. This means the screens are grounded to the
case as a shielding. I used this in every of my amplifier builts.
This is cable from the german company LAPP KABEL.
The cable is named LAPP KABEL ÖLFLEX CLASSIC CY110.
You can get in black or clear coated, in a lot of dimensions (mm² / AWG)
and with many amounts of stranded wire. I love this cable. 😀
Greetings
Dirk
Hello Meper,
do you mean wtih 'braided screens' my braided cables?
If you mean that, than they are real. This means the screens are grounded to the
case as a shielding. I used this in every of my amplifier builts.
This is cable from the german company LAPP KABEL.
The cable is named LAPP KABEL ÖLFLEX CLASSIC CY110.
You can get in black or clear coated, in a lot of dimensions (mm² / AWG)
and with many amounts of stranded wire. I love this cable. 😀
Greetings
Dirk
answer to meper
But I only use it from the AC input (often Schurter - filter) to the transformers
normally.
Not for the audio-signal!
But I only use it from the AC input (often Schurter - filter) to the transformers
normally.
Not for the audio-signal!
Cooking an M2X
Hello members,
I had a problem to adjust the output offset on my M2X build.
I completely screwed down RV1 on the mainboards and although had an offset
at the speaker outputs of circa - 44mV to - 50mV on both channels.
So, I followed 6L6s advice: the 'blasphemous heresy' way. 😱
I changed R6 to 37.4 kohm and changed the trimpot RV1 to 20kohm.
And voila! All is absolut nicely adjustable. I could adjust the offset on both
channels to below 1mV. I think that is really good.
You see the measurements on the pics, which have been taken all few seconds.
So it is fluctuating a little bit. It is regulated.
I change now to the M2X thread. Don't want to post all twice.
Cheers
Dirk
Hello members,
I had a problem to adjust the output offset on my M2X build.
I completely screwed down RV1 on the mainboards and although had an offset
at the speaker outputs of circa - 44mV to - 50mV on both channels.
So, I followed 6L6s advice: the 'blasphemous heresy' way. 😱
I changed R6 to 37.4 kohm and changed the trimpot RV1 to 20kohm.
And voila! All is absolut nicely adjustable. I could adjust the offset on both
channels to below 1mV. I think that is really good.
You see the measurements on the pics, which have been taken all few seconds.
So it is fluctuating a little bit. It is regulated.
I change now to the M2X thread. Don't want to post all twice.
Cheers
Dirk
Attachments
So, I followed 6L6s advice: the 'blasphemous heresy' way. 😱
Actually it was Mark's heretical teachings, but if you look at the BA-3 guide, you'll see I was preaching the exact same litany years ago. It merely gives more range to the adjustment of offset, changing nothing else, a useful modification.
But I only use it from the AC input (often Schurter - filter)
Not for the audio-signal!
Yes, I meant this braided cable!
Will have a look at them.......
Hello sound-gourmets,
the hooby-cook made a nightshift yesterday. Made the backpanel of the M2X.
Acryl translucent dark grey.
Drilling, jigsaw, file, sandpapers, polishing,.....
I feel like this
Cheers
Dirk
If I did this I'd have to arrange my messy wires, too much work!
I posted pictures in the build thread but this is near final aside from the finish
My Sissy SIT closed up but not yet finished - needs anodized or painted, not sure yet

Back panel

It is sounding amazing. I love the M2X and this just kicks it all up a notch.
very grateful to Papa for sharing so freely and the greediest boy ... ZM ... for making everything wackoo
..dB
My Sissy SIT closed up but not yet finished - needs anodized or painted, not sure yet

Back panel

It is sounding amazing. I love the M2X and this just kicks it all up a notch.
very grateful to Papa for sharing so freely and the greediest boy ... ZM ... for making everything wackoo

..dB
mmmmmm cooked multimeters
Fugly!
![]()
Sunny Side..., I mean Metered Side Up!!! 🙂
It could be an interesting Salvador Dali picture with melted DMM's.
Do you have cutting tools for cutting your own aluminium plates for the chassis?
Are the large holes in the top plate cut using a hole saw?
Which kind? …..carbide, diamant or bimetal/HSS?
Do you have cutting tools for cutting your own aluminium plates for the chassis?
Are the large holes in the top plate cut using a hole saw?
Which kind? …..carbide, diamant or bimetal/HSS?
It could be an interesting Salvador Dali picture with melted DMM's.
I am sure it came close. the entire chassis settles at 50 deg C 😀
Sadly just primitive tools - I used a diamond blade on a small circular cutter to trim edges and remove fins etc. The holes in the top plate were like that when I bought it - it came from a metal art supplier and this stamping pattern is apparently popular with metal folk artists. I liked it and thought it would improve air flow
..dB
Cooking DMMs
Hello MEPER,
since your hint with DALI I have pictures in my silly, incurable brain!
Everything is in a flow and melting - DALI-clocks, DMMs,......
And I found the reason for my non-working TUCSON - boards. It were not
the boards, not my switcher, not the long cables,...
I report in the M2X-builders-thread.
Greets Dirk
Hello MEPER,
since your hint with DALI I have pictures in my silly, incurable brain!

Everything is in a flow and melting - DALI-clocks, DMMs,......
And I found the reason for my non-working TUCSON - boards. It were not
the boards, not my switcher, not the long cables,...
I report in the M2X-builders-thread.
Greets Dirk
Interesting and good you found the error 🙂
Then also the logic "won" this time...….will look at the M2X thread.
Then also the logic "won" this time...….will look at the M2X thread.
@Meper
most types of aluminium can easily be cut with tools you'd use for wood
e.g. jigsaw, circlesaw, drill, ...
watch out for shrapnels!
A.
most types of aluminium can easily be cut with tools you'd use for wood
e.g. jigsaw, circlesaw, drill, ...
watch out for shrapnels!
A.
answer to Attila I
And you will find the aluminum - shrapnels everywhere in your house! Or in your amp!
My experience. 😀
Greets Dirk
And you will find the aluminum - shrapnels everywhere in your house! Or in your amp!
My experience. 😀
Greets Dirk
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