Got it!
And from what I heard I need to find a replacement for my Infinity Renaissance 80. I love them, but Aleph 60 is not enough for them in bass section. So... thinking of OB with Alpha's 15 on the bottom and AN 8"-10" for mid and probably some tweeter.
but this is another story 🙂
And from what I heard I need to find a replacement for my Infinity Renaissance 80. I love them, but Aleph 60 is not enough for them in bass section. So... thinking of OB with Alpha's 15 on the bottom and AN 8"-10" for mid and probably some tweeter.
but this is another story 🙂
I looked into zvp3310 data sheet and found operation temp is up to +150c, is it a case temp or crystal? Even I made a heatsink for them I can not touch them, did someone try them and have the same issue?
Ok, it's been 10 days am listening to my aleph and sadly I think that something is wrong.
It sounds very "flat" and fatiguing. There is dynamics and good freq range, but looks like maybe it is too much distortion. It looks/sounds like it is even hard for the amp to drive 90+db 8ohm pioneer hpm's. it is not clipping, but when music is more difficult and loud mid frequencies get muddier.
I measured most points and the look fine to me. I bias it 0.45mA per device(x6). DC offset is ~45mV. If I play 100hz sine with 12mV amplitude i measure 1.2V int 8ohm speakers. I tried to adjust/measure AC gain but my Voltmeter just can't measure such low values of AC V across output resistors. I have a USB oscope which is terrible, but I'll try to solder something as probes ends and us it tomorrow.
Guys, I am totally lost and would appreciate any help, Please!
It sounds very "flat" and fatiguing. There is dynamics and good freq range, but looks like maybe it is too much distortion. It looks/sounds like it is even hard for the amp to drive 90+db 8ohm pioneer hpm's. it is not clipping, but when music is more difficult and loud mid frequencies get muddier.
I measured most points and the look fine to me. I bias it 0.45mA per device(x6). DC offset is ~45mV. If I play 100hz sine with 12mV amplitude i measure 1.2V int 8ohm speakers. I tried to adjust/measure AC gain but my Voltmeter just can't measure such low values of AC V across output resistors. I have a USB oscope which is terrible, but I'll try to solder something as probes ends and us it tomorrow.
Guys, I am totally lost and would appreciate any help, Please!
make this and try , connecting it at amp output - maybe you're having oscillation on output
if LED's are lit , it's there
if LED's are lit , it's there
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nope if "Analog Bandwidth 250KHz" is what I'm understanding
make that two led thingie
put 1uF solid cap in parallel to C19 (Service Manual nomenclature)
make that two led thingie
put 1uF solid cap in parallel to C19 (Service Manual nomenclature)
Ok, and btw, I have C20=12pf not 10pf. Is it bad?
How critical capacitors and resistor values in that 2LED thing? I do not have exact values?
1nf before I connect a thing or instead connecting it?
How critical capacitors and resistor values in that 2LED thing? I do not have exact values?
1nf before I connect a thing or instead connecting it?
Ops, sorry, yep. I already have 10nf there, ok?
Another thing: I thing I have some hum in idle out of the speakers. I am not sure if it is 60hz(120) from PSU or not. I do not have ground loops though.
Another thing: I thing I have some hum in idle out of the speakers. I am not sure if it is 60hz(120) from PSU or not. I do not have ground loops though.
too many things in same time
I couldn't cope with your mix up between one schmtc nomenclature and different pcbs and confusion in your head
;
whatever - what you can do is to make proper original front end ( not with those ZVP or something like that ) then start from there
every change will be change from original and you'll know is it for better or for worse
I couldn't cope with your mix up between one schmtc nomenclature and different pcbs and confusion in your head
;whatever - what you can do is to make proper original front end ( not with those ZVP or something like that ) then start from there
every change will be change from original and you'll know is it for better or for worse
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