The Diyaudio store has a soft-start pcb, Mr Pass shows only the CL60's in his schematic's can anyone give their options on using either ? Which is better and why ? Or are both needed when constructing a F4 or F5 type amp ? Thank-you !
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Like Audiosan I prefer a soft start.I've been using one of these for some years.Not the cheapest but works well.
soft start electronics for audiophile hifi audio amplifiers : avondale audio
soft start electronics for audiophile hifi audio amplifiers : avondale audio
I think that soft start is better then NTC, because CL-60 wont be in his strength, unless he cools off, short time on/of/on
best thing is bstrd of these two
soft start circuit with NTCs instead of fixed resistors
do not forget that soft start must be optimized for each particular case , to avoid abrupt currents when switching relay ON
that solution covers case of blackouts , which is only case where simple -NTC in line- solution is critical
soft start circuit with NTCs instead of fixed resistors
do not forget that soft start must be optimized for each particular case , to avoid abrupt currents when switching relay ON
that solution covers case of blackouts , which is only case where simple -NTC in line- solution is critical
CL60 is the most simple and time tested. I usually connect a CL60 to it's own DPDT swtich, turn amp on, wait 3 seconds, then turn off the CL60. Just don't forget to 'enable' CL60 prior to next power up.
well. that is exactly what a simple softstart will do. and you don't need te remember to do all that manualy. so i will say that a simple softstart with CL-60's insted of fixed resistors are the easy way.
I've used the Pass CL60 design and have no problems. Why make things more complicated?
Regards,
Dan
Regards,
Dan
just in case if you're having both monstrous C bank ( and adequate xformer ) and often blackouts in mains
result is burned fuse
result is burned fuse
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