I am planning to build the F6 this winter after building 2 ACA's last winter. Can anyone comment on the pros and cons of using Class D Audio's large power supply with a Antek transformer (AS-4218)
Large 60,000uF Power Supply
versus building the DIY universal power supply. Do I lose anything performance wise? Does cost look to be roughly comparable? This is my first venture into power supplies and I confess I am trying to keep it simple.
Large 60,000uF Power Supply
versus building the DIY universal power supply. Do I lose anything performance wise? Does cost look to be roughly comparable? This is my first venture into power supplies and I confess I am trying to keep it simple.
I wouldn't use it. For Firstwatt builds, we typically use 120000uF or more
for a stereo amp. And the 80V caps are fine, but somewhat wasted with
the +/-25V rails of an F6.
I suggest you build something with more capacitance and lower rail caps.
for a stereo amp. And the 80V caps are fine, but somewhat wasted with
the +/-25V rails of an F6.
I suggest you build something with more capacitance and lower rail caps.
Thanks for that Dennis. Whats your experience with the cost of parts for a self-built power supply? I'm new to this and have not yet tried to price a bill of materials for the Universal power supply.
Part of my hesitation is that I am pretty green and do not really feel comfortable choosing parts. I don't know which values are critical and which are open to variation and by how much.
Part of my hesitation is that I am pretty green and do not really feel comfortable choosing parts. I don't know which values are critical and which are open to variation and by how much.
You should be able to build a decent one at similar or less cost than that supply.
The main cost will be the capacitors and there are lots of choices. You'll want 8 to populate the full board. They need to have diameter <=35mm. I suggest voltage >=35V, capacitance of 15000uF and above.
Just to give you some ideas, here are some sample Cornell Dubillier ones that will fit the bill:
https://www.mouser.com/Cornell-Dubi...mgaSGT&Keyword=capacitor&FS=True&Ns=Pricing|0
Amusing thing: Watch for quantity discounts. Sometimes it's cheaper to buy 10 than 8. 🙂
The main cost will be the capacitors and there are lots of choices. You'll want 8 to populate the full board. They need to have diameter <=35mm. I suggest voltage >=35V, capacitance of 15000uF and above.
Just to give you some ideas, here are some sample Cornell Dubillier ones that will fit the bill:
https://www.mouser.com/Cornell-Dubi...mgaSGT&Keyword=capacitor&FS=True&Ns=Pricing|0
Amusing thing: Watch for quantity discounts. Sometimes it's cheaper to buy 10 than 8. 🙂