Hello, I have to change the 4 big electrolytics in the PS of my Threshold Sa/3.9e.
What brand do you suggest for best sound/reliability?
In the forum 'Thresholdlovers' I find written:
go from Mallory (31000 microfarads / 75v) to United Chemicon Ucc (33000 microfarads / 85v) or RIFA (33000 microfarads / 100v) or CORNELL DUBILIER (xxx / xxx); add 4 Elna (470 microfarads / 100v); bypass with 4 Vishays (0.47 microfarads / 630v in parallel); change resistances from 10% to 1%; bias adjustment to 1.6.
What do you think?
Thank you.
Thanks
What brand do you suggest for best sound/reliability?
In the forum 'Thresholdlovers' I find written:
go from Mallory (31000 microfarads / 75v) to United Chemicon Ucc (33000 microfarads / 85v) or RIFA (33000 microfarads / 100v) or CORNELL DUBILIER (xxx / xxx); add 4 Elna (470 microfarads / 100v); bypass with 4 Vishays (0.47 microfarads / 630v in parallel); change resistances from 10% to 1%; bias adjustment to 1.6.
What do you think?
Thank you.
Thanks
I think you should established what are the mechanical constraints, then take the one with the highest voltage, highest Lifetime to the highest temperature, lowest ESR, highest ripple current at low frequency, less costly and most importantly, the ones that are in stock from a reputable seller.
After installing it, tested it and experience the result for some time. Try some inexpensive polypropylene decoupling capacitors in // to them to see if you observe a improvement.
After installing it, tested it and experience the result for some time. Try some inexpensive polypropylene decoupling capacitors in // to them to see if you observe a improvement.
Kemet 380 serie. Or Ucc. Panasonic FC too. F&T caps ?
Look first on the pcb the leads pitch and diameter of the holes (snap-in or not) as the diameter of the original caps if the area is narrow in order to avoid bad surprises. Look at the caps datasheets. Whatever the temp. rating you should be safe for the next 20 years. But of course, as said above, oversizing temp and voltage stands for a longer reliability. A 2000 hours 85 degrees cap should you drive to at least 50 000 hours at 50° of normal use.
Look first on the pcb the leads pitch and diameter of the holes (snap-in or not) as the diameter of the original caps if the area is narrow in order to avoid bad surprises. Look at the caps datasheets. Whatever the temp. rating you should be safe for the next 20 years. But of course, as said above, oversizing temp and voltage stands for a longer reliability. A 2000 hours 85 degrees cap should you drive to at least 50 000 hours at 50° of normal use.
Nichicon has a few lines meant for audio applications. I can't vouch for them sounding any different but they do look nice with their gold coloring.