I want to build a class D amplifier to be integrated into a vintage case. I want to keep things simple, but not overly so. My knowledge of these things is limited, so forgive me in advance if I am being silly in any way.
Power supply
Should I (and can I) just use the existing vintage power supply?
If I decide to replace it, I would go for a switching power supply (ready-made PCB). I want to buy off the shelf high quality stuff - any resources you can point me to?
Digital crossover
There will be one digital signal input. I want a 4 channel output (mid and high freq, stereo). As with everything in this project, I want to buy off-the-shelf pcb boards, hopefully as high a quality as I can afford.
Do I need a DAC before the crossover? Or are there crossover designs that are purely digital?
I would like to buy a PCB board where I can tweak (mechanically?) the crossover frequency (inside the vintage box) and slope. Does this exist? I would then close the box and keep it closed until I change the speakers, for example. Or move to a different room. And then set the new crossover frequencies and slope if needed.
Where can I buy, and find resources on, these boards?
Power amplification
I am looking at two 2x100W stereo, or four 100W mono class D amplification.
Would I control the volume (through the existing knob on the vintage case) on the input to these two (or four) amps. Anything I should be aware of here?
Again, any resources or recommendations on where I can buy off the shelf PCB boards would be very helpful.
Speakers
Not strictly part of this project - but I would use my existing passive speakers, but with the crossover physically removed.
That is it, I guess. If there are any useful threads on the forum - I would appreciate any pointers. There is just so much material that I am getting lost.
Power supply
Should I (and can I) just use the existing vintage power supply?
If I decide to replace it, I would go for a switching power supply (ready-made PCB). I want to buy off the shelf high quality stuff - any resources you can point me to?
Digital crossover
There will be one digital signal input. I want a 4 channel output (mid and high freq, stereo). As with everything in this project, I want to buy off-the-shelf pcb boards, hopefully as high a quality as I can afford.
Do I need a DAC before the crossover? Or are there crossover designs that are purely digital?
I would like to buy a PCB board where I can tweak (mechanically?) the crossover frequency (inside the vintage box) and slope. Does this exist? I would then close the box and keep it closed until I change the speakers, for example. Or move to a different room. And then set the new crossover frequencies and slope if needed.
Where can I buy, and find resources on, these boards?
Power amplification
I am looking at two 2x100W stereo, or four 100W mono class D amplification.
Would I control the volume (through the existing knob on the vintage case) on the input to these two (or four) amps. Anything I should be aware of here?
Again, any resources or recommendations on where I can buy off the shelf PCB boards would be very helpful.
Speakers
Not strictly part of this project - but I would use my existing passive speakers, but with the crossover physically removed.
That is it, I guess. If there are any useful threads on the forum - I would appreciate any pointers. There is just so much material that I am getting lost.
