Hi!
I own a stereo multi-channel system (MiniDSP active crossover) with DIY amplifiers :
Because of some hum, I want to replace LM4780 by a class D integrated SMPS module.
I need your advice about these two boards:
The first one is a certified Tripath chip (old stock).
The second one, I don't know about! We can see it on Ebay, Ali, Amazon...
If someone has tested and listened one of theses?
Any other idea? (same budget)
I own a stereo multi-channel system (MiniDSP active crossover) with DIY amplifiers :
- Focal 10L subwoofer powered by one Hypex UCD180
- Davis 13KLV5MA bass/medium powered by two Hypex UCD180
- Audax TW025A20Mg powered by one LM4780 gainclone module
Because of some hum, I want to replace LM4780 by a class D integrated SMPS module.
I need your advice about these two boards:
The first one is a certified Tripath chip (old stock).
The second one, I don't know about! We can see it on Ebay, Ali, Amazon...
If someone has tested and listened one of theses?
Any other idea? (same budget)
Hello Ppan,
I own a three way : CA26RFX + PHL 1280 + Vifa XT25TG30-04
Medium and high section are powered by two 50ASX2 modules feeded by a Najda DSP.
Sound is very goo IMHO.
My advices : use the same amps for medium and high section, use an input buffer in front of the 50ASX2 modules, buy genuine modules.
You can find genuine modules on soundimport.eu.
Few interestings links :
Post #170 of thread 500W of ICEpower for USD$100, deal or not?
My trip to class D
Project files: Opamp buffer for ICEpower ASX-modules | theslowdiyer
Past projects: 6-channel ICEpower50ASX amp | theslowdiyer
I own a three way : CA26RFX + PHL 1280 + Vifa XT25TG30-04
Medium and high section are powered by two 50ASX2 modules feeded by a Najda DSP.
Sound is very goo IMHO.
My advices : use the same amps for medium and high section, use an input buffer in front of the 50ASX2 modules, buy genuine modules.
You can find genuine modules on soundimport.eu.
Few interestings links :
Post #170 of thread 500W of ICEpower for USD$100, deal or not?
My trip to class D
Project files: Opamp buffer for ICEpower ASX-modules | theslowdiyer
Past projects: 6-channel ICEpower50ASX amp | theslowdiyer
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Salut Pascal !
Le monde est petit : tu me connais sous le pseudo Larudakote, sur un autre forum où nous avions discuté jadis. Je continue en anglais pour nos amis ;-)
I don't want to add a buffer section, therefore another power supply (I forgot this point about IcePower module).
So, because I'm not convinced by Tripath for HiFi application, I will probably break the piggy bank to buy two Hypex amp: stable, silent, reliable. Cherry on the cake, UcD provides a symmetric connection (potential future project).
IMHO, using the same amps for medium and high section is just convenient (level).
PS : modules feeded by a discontinued MiniDSP NanoAVR HDA
Le monde est petit : tu me connais sous le pseudo Larudakote, sur un autre forum où nous avions discuté jadis. Je continue en anglais pour nos amis ;-)
I don't want to add a buffer section, therefore another power supply (I forgot this point about IcePower module).
So, because I'm not convinced by Tripath for HiFi application, I will probably break the piggy bank to buy two Hypex amp: stable, silent, reliable. Cherry on the cake, UcD provides a symmetric connection (potential future project).
IMHO, using the same amps for medium and high section is just convenient (level).
PS : modules feeded by a discontinued MiniDSP NanoAVR HDA
You could also just get rid of the hum. All amplifiers can hum, but should also be able to be silent.
You are right. But I have built a complex multi-amp system and it's sometimes [very] difficult to resolve ground loop... which I find more simple to break with class D module.
I'm gonna try the 3E Audio TPA3255 module.