Enough film caps on that one. I think I saw the schematic and saw some 10 µF electrolytic caps (and even way larger) in the signal path ?
It looks nice but I am glad I don't need a preamp, certainly not one with so many moving parts (potentiometers). I had many of them in the past. Less is more 🙂
Of course I know of the measurements of Mr. Self on opamps (in fact I read those quite often) but I never heard the preamp. On his website I noticed "capacitor distortion" mentioned so I am sure he has not chosen the parts at random. I would do the "straight wire" test with the preamp. If it fails it is gone 😉
It looks nice but I am glad I don't need a preamp, certainly not one with so many moving parts (potentiometers). I had many of them in the past. Less is more 🙂
Of course I know of the measurements of Mr. Self on opamps (in fact I read those quite often) but I never heard the preamp. On his website I noticed "capacitor distortion" mentioned so I am sure he has not chosen the parts at random. I would do the "straight wire" test with the preamp. If it fails it is gone 😉
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Yeah, lots, upto 470uF. I don't need it either 😉. I want to boost the HF primarily in a very personal way to counteract some hearing loss to give me enhanced aural pleasure..................while I'm still capable
You are not the famous tweeterkiller are you ?
BTW this is slight thread pollution. Of the better kind but still...
BTW this is slight thread pollution. Of the better kind but still...
One Way? I love your turn of phrase 😉. Yeah why not? More accurate than fullrange, which is an oxymoron. Although they are close- the Jordan Eikona- though not at the moment because I have them OB, but in a FAST set up. Don't you love all these trendy Anglo tech abbreviations?
No I definitely don't love all those anglo tech abbreviations as the language itself is already limited enough if one wants to express oneself precisely. Secondly it is hard for a non native speaker to know these abbreviations and google already is my best friend. Sorry.
I translated our word in "one way" as "full range" does not fit. I never encountered a one way loudspeaker (called "full range") that really covered the full range.
I translated our word in "one way" as "full range" does not fit. I never encountered a one way loudspeaker (called "full range") that really covered the full range.
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Yes, I think there is too much abbreviation in general, particularly the three letter abbreviation (or TLA) seems too common entirely. English language is more open to alternative interpretations than many which only adds to confusion for non native speakers. I believe French is the "language of diplomacy" because it is far more precise? Sometimes with the tech abbreviations used here there is almost an element of snobbery which I don't like. I try to speak in an unambiguous manner to non English speakers, which turns out to be good practice all round.😀. Regards these little speakers we demand so much from, "wideband" is best I think
Ok i'm trying really hard to keep this thread on the right topic but i must admit i'm struggling lol.
Does anyone have an opinion about wirewound, non-inductive vs inductive ect?
Does anyone have an opinion about wirewound, non-inductive vs inductive ect?
There is a 1 or 2uF Limit with MKS/MKP. Beyond that, you have to use Elkos. Mr. Self found out that 100uF caps produce more THD than 220uF caps. Keep that in mind.
They are good for signal path but for power supply hmm...i don't think so!!!
Just a friendly advice.
Huh ? I think I misunderstand. There exist 10 µF MKS caps. Are you saying that electrolytic caps are better ? Seems unlikely. Maybe better price/quality ratio ....
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I read about half of this thread and studied the 606/909/QSP schematic a bit.
Seems like 909 and QSP may have some very cheap caps that would be good to replace.
Generally the big PSU caps last the longest of the electrolytics in an amp, but in these amps they are basically in series with the output, right?
2 PSU caps in series and trafo has only one winding per channel.
So they are charged in series and discharged "alone".
Kind of like virtual ground.
I am glad to hear that some have gotten the clones to work.
This amp has a slightly weird topology and changes or bad components or outsourcing of manufacturing certainly can have radical effects 🙂
Seems like 909 and QSP may have some very cheap caps that would be good to replace.
Generally the big PSU caps last the longest of the electrolytics in an amp, but in these amps they are basically in series with the output, right?
2 PSU caps in series and trafo has only one winding per channel.
So they are charged in series and discharged "alone".
Kind of like virtual ground.
I am glad to hear that some have gotten the clones to work.
This amp has a slightly weird topology and changes or bad components or outsourcing of manufacturing certainly can have radical effects 🙂