Standard the Marantz has 2x 18000uf 80V and 2x 27000uf caps 50v (50mm x 100mm).
1x bridge diode 4A 200V and 1x 10A 200V. There is a soft start, see schematics in attachment.
I am limited in my options due to dimensions (max. about 50mm wide and not taller than 100mm).
I have found the following options and would like to know what you think.
- 2x LNR2A223MSE 100volts 22000uF + LNR1H683MSE 2x 50volts 68000uF (51mm x 100mm)
- 2x LNR1K223MSE 80volts 22000uF + LNR1J333MSE 63volts 33000uF (51mm x 80mm)
Would it be possible to choose the first option without changing bridges and resistor on soft start?
Is more better in this case or will it put a strain on the transformer? (can't figure out the specs of it)
1x bridge diode 4A 200V and 1x 10A 200V. There is a soft start, see schematics in attachment.
I am limited in my options due to dimensions (max. about 50mm wide and not taller than 100mm).
I have found the following options and would like to know what you think.
- 2x LNR2A223MSE 100volts 22000uF + LNR1H683MSE 2x 50volts 68000uF (51mm x 100mm)
- 2x LNR1K223MSE 80volts 22000uF + LNR1J333MSE 63volts 33000uF (51mm x 80mm)
Would it be possible to choose the first option without changing bridges and resistor on soft start?
Is more better in this case or will it put a strain on the transformer? (can't figure out the specs of it)
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The service manual shows the 2x 18000uf + 2x 27000uf configuration, but I read somewhere that they also used 4x 22500uf in the past.
I don't know that amp. Sounds like separate V rails for front end and output stage? With a real soft start like that you should try to fill any empty space with caps (or plan for the option to add later). If it takes 50V caps, take advantage of the bigger capacitance and smaller size. Twice the caps, half the PS ripple.