Doing a mod on a pair on M-501 Onkyo's. I like the amps solo, but need more power. Time to make them monoblocks. I want to shoe them into the same chassis. I'm wanting about 250 to 300wpc. Here are the questions:
1)-use the factory transformers or Krell it out? I'm thinking use the factory ones, saves coin(for other parts) and the output voltage is within spec for the outputs(which will also be used).
2)-Caps-I'm thinking 35,000 to 40,000uF in the primary banks(two amps here) and stacking 1500 to 2000uF at EACH output device. Any thoughts on this
3)-Dual brigdes(4 total)-will help with inrush currents and seperation. ANY thoughts on this appreciated.
I'm using all four pairs of outputs paralleled per side. I've got another pair per side I could add, should I? Only benifit I can see is the ability to drop more current from the power supply for dynamics.
As far as protection, I'm thinking about fusing the outputs rails, and using a 3 second delay for main rail engagement to allow the large banks to stabilize before the outputs switch to an active state.
This is my first DIY at this level(not really a DIY, more of a frankenstien). Please don't fire me to hard, I have high hopes for this project(I've been working on this for about 3 years-gathering parts, studying schematics, ect).
1)-use the factory transformers or Krell it out? I'm thinking use the factory ones, saves coin(for other parts) and the output voltage is within spec for the outputs(which will also be used).
2)-Caps-I'm thinking 35,000 to 40,000uF in the primary banks(two amps here) and stacking 1500 to 2000uF at EACH output device. Any thoughts on this
3)-Dual brigdes(4 total)-will help with inrush currents and seperation. ANY thoughts on this appreciated.
I'm using all four pairs of outputs paralleled per side. I've got another pair per side I could add, should I? Only benifit I can see is the ability to drop more current from the power supply for dynamics.
As far as protection, I'm thinking about fusing the outputs rails, and using a 3 second delay for main rail engagement to allow the large banks to stabilize before the outputs switch to an active state.
This is my first DIY at this level(not really a DIY, more of a frankenstien). Please don't fire me to hard, I have high hopes for this project(I've been working on this for about 3 years-gathering parts, studying schematics, ect).