Hi,
Has anyone tried and build ComSuMo ? how is the output sound signature is like ?
Regards,
Has anyone tried and build ComSuMo ? how is the output sound signature is like ?
Regards,
Or any help with working gerbers or asc file for TubSuMo that can be usefull for me to modify for ComSuMo and test it.
Thanks in Advance,
Thanks in Advance,
ComSuMo
Trying my luck again !!!!
Hi,
Has anyone tried and build ComSuMo ? how is the output sound signature is like ?
Regards,
Trying my luck again !!!!
Hello,
Can you please explain what ComSuMo option is? I really don't remember the design with such a name.
At the time of extensive testing in 2015 I have tried 3 input devices at the input:
1) Tube triodes
2) jFETs
3) BJTs
All 3 options worked very well, although my personal preference soundwise is tghe tube.
Cheers,
Valery
Can you please explain what ComSuMo option is? I really don't remember the design with such a name.
At the time of extensive testing in 2015 I have tried 3 input devices at the input:
1) Tube triodes
2) jFETs
3) BJTs
All 3 options worked very well, although my personal preference soundwise is tghe tube.
Cheers,
Valery
Right, I had to look at the first post 🙂
OK, I have sent you a PM - I will look into the layout, it requires a slight modification for ComSuMo.
Cheers,
Valery
OK, I have sent you a PM - I will look into the layout, it requires a slight modification for ComSuMo.
Cheers,
Valery
ComSuMo 2021 Edition
OK, here we go - updated layout with corresponding schematic and berbers.
These gerbers are not good for home etching - soldering pads are too small for hand-drilling.
No problem for manufactured boards though.
Cheers,
Valery
OK, here we go - updated layout with corresponding schematic and berbers.
These gerbers are not good for home etching - soldering pads are too small for hand-drilling.
No problem for manufactured boards though.
Cheers,
Valery
Attachments
Highly appreciated !!!
Do we need to use matched pairs of BJT, FET and the input section ? as well do we need to look for any character match between BJT & FET ?
May I know the voltage recommendations of this IPs ? and can I use Slewmaster OPs with this IPs ?
Thank you,
Suman
Do we need to use matched pairs of BJT, FET and the input section ? as well do we need to look for any character match between BJT & FET ?
May I know the voltage recommendations of this IPs ? and can I use Slewmaster OPs with this IPs ?
Thank you,
Suman
Last edited:
Hi Suman,
Answering your questions:
- Yes, matched pairs in all the BJT LTPs will be an advantage;
- No, matching between BJT & FET is not required; also, the pair of FETs at the input does not require matching (followers);
- Optimum rails right now are +/-50...55V DC;
- You can use it with Slewmaster OPS no problem.
Please let me know if you will have more questions 😉
Cheers,
Valery
Answering your questions:
- Yes, matched pairs in all the BJT LTPs will be an advantage;
- No, matching between BJT & FET is not required; also, the pair of FETs at the input does not require matching (followers);
- Optimum rails right now are +/-50...55V DC;
- You can use it with Slewmaster OPS no problem.
Please let me know if you will have more questions 😉
Cheers,
Valery
Thank you for all your patience, Valery.
I will move forward with testing ComSuMo, will keep you posted with my progress.
I will move forward with testing ComSuMo, will keep you posted with my progress.
Christmas is coming so how about this, here’s your chance to pay below 50% the regular price and have an amp already build by a pro, look below;
FS : VZaudio NS OPS Amplifier with two different IPS
Thanks
Eric
FS : VZaudio NS OPS Amplifier with two different IPS
Thanks
Eric
Hi
Can someone please explain why nobody in the Swap/Meet or in this thread seems interested in buying this amp at a ridiculous low price and also considering it was fully assembled with genuine parts and built by our expert builder Pinnochio.
Is this an old model and there’s a newer and better one available? I’m clueless so any pointers would be appreciated.
Thanks
Eric
Can someone please explain why nobody in the Swap/Meet or in this thread seems interested in buying this amp at a ridiculous low price and also considering it was fully assembled with genuine parts and built by our expert builder Pinnochio.
Is this an old model and there’s a newer and better one available? I’m clueless so any pointers would be appreciated.
Thanks
Eric
Eric,
Tell me about it. It is very difficult to understand the motives and wishes of audiophiles.
I recognised Do's master skills; beautiful stuff, really stunning.
There is a suspicion about local product; this is the reason I like to sell the Aspen products overseas. Australians tend to want at Chinese prices, and scoff at local products for some reason I don't understand.
He will sell it, but let me know he should NOT drop his price........
Harumph..........
Hugh
Tell me about it. It is very difficult to understand the motives and wishes of audiophiles.
I recognised Do's master skills; beautiful stuff, really stunning.
There is a suspicion about local product; this is the reason I like to sell the Aspen products overseas. Australians tend to want at Chinese prices, and scoff at local products for some reason I don't understand.
He will sell it, but let me know he should NOT drop his price........
Harumph..........
Hugh
- Home
- Amplifiers
- Solid State
- Ultra-high performance, yet rather simple - hybrid and more!