@Variac, thank you, I was way off lol!
6l6, thank you for the web link.
If I understand it correctly, will I need the following?
MCL - LCD Control Board for MUSES® Electronic Volume Control
SVC Hi-End MUSES®
Electronic Volume Control with Input Selector
Will I need the separate power supply offered?
LPS9, Ultra Low Noise Power Supply for Audio
I’m thinking I do?
6l6, thank you for the web link.
If I understand it correctly, will I need the following?
MCL - LCD Control Board for MUSES® Electronic Volume Control
SVC Hi-End MUSES®
Electronic Volume Control with Input Selector
Will I need the separate power supply offered?
LPS9, Ultra Low Noise Power Supply for Audio
I’m thinking I do?
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The academy parts have the advantage that they‘re already soldered. (Which could be regarded as a disadvantage, though 🙂 )
Many have successfully built meldano‘s jig (he‘s at version 2 with the next generation muses btw) and there, a very wide band of „power-supplying“ from topnotch PSU down to cannibalising from the main PSU proved to be feasible. Exception: the display‘s current must be totally isolated.
Many have successfully built meldano‘s jig (he‘s at version 2 with the next generation muses btw) and there, a very wide band of „power-supplying“ from topnotch PSU down to cannibalising from the main PSU proved to be feasible. Exception: the display‘s current must be totally isolated.
AcademyAudio also offers some well documented App Notes how to integrate the Muses Attenuators with B1 Kork and BA2018 linestage.
App Notes | academyaudio
App Notes | academyaudio
Hi, I have some questions regarding something I want to build.
The plan is to build two ACA in parallen mode with a BA-3 preamp into one encasing. With 3 PSU´s
Two questions.
First can I use this PSU for the BA3
MPM-30-MEAN WELL Switching Power Supply Manufacturer ?
And then the main question. How do I set up the ground?
My plan was to connect the two negativs of the ACA´s meanwell PSU´s together as a ground for the ACA´s . This is ok?
And how do I connect the ground of the BA3?
I would connect it to the ACA´s ground or should I connect it to the main ground? And if so should I then connect the ACA´s ground also to the main ground?
Thanks for the answers.. I live a bit on the newbie site of life 🙂
The plan is to build two ACA in parallen mode with a BA-3 preamp into one encasing. With 3 PSU´s
Two questions.
First can I use this PSU for the BA3
MPM-30-MEAN WELL Switching Power Supply Manufacturer ?
And then the main question. How do I set up the ground?
My plan was to connect the two negativs of the ACA´s meanwell PSU´s together as a ground for the ACA´s . This is ok?
And how do I connect the ground of the BA3?
I would connect it to the ACA´s ground or should I connect it to the main ground? And if so should I then connect the ACA´s ground also to the main ground?
Thanks for the answers.. I live a bit on the newbie site of life 🙂
you need bipolar PSU for BA3 FE
that means - besides GND, you have one positive and one negative rail
start from there; when you solve that puzzle, proceed with ACA arranging
that means - besides GND, you have one positive and one negative rail
start from there; when you solve that puzzle, proceed with ACA arranging
thanks for the answer. If I build a bipolar PSU with 250VA and 24V I could also connect the two ACAs and the BA3 to it and get rid of the meanwell PSU?
yes, you can use linear supply for ACA
be aware that for BA3 FE you need small current supply, so small xformer and rectifier/regulator pcb is solving that
then, for ACA, use big one, either switcher or linear
be aware that for BA3 FE you need small current supply, so small xformer and rectifier/regulator pcb is solving that
then, for ACA, use big one, either switcher or linear
So just wondering I started reading this from the beginning and noticed your comments on using R2 to silence the switched resistor volume control. I have another preamp with switched volume and balance control. It produces loud pops when changing volume. How does R2 alleviate this and could I use it on mine maybe.
It's just an attenuator, will not affect gain. It's a challenge if you don't build surface mount devices (think of a cap 1mm long and if you drop it, just get another one because you won't be able to find it). I looked at some YT videos and found it was doable.
Finally got my BA-3 preamp in a decent case. I used the largest galaxy 2U from the DIYA store, it proved to be a bit of a tight fit, but it worked out well. I had the chance to try it out with my F4 replacing the Doug Self preamp that I had in that service. Good news is that it has that extra bit of gain that I was looking for. Not a big difference sonically though, maybe a bit more ease and naturalness, maybe a bit deeper soundstage. Very good imaging, but the differences are subtle and could due proud parent syndrome for my latest project, or due to the bourbon that I was enjoying. In any event I'll leave it in the system for a while to enjoy.
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