if you set it for symmetrical clipping, you did right
though, measurement about/at/of SIT source is not good, I'm expecting approx. half of rail value, not mV
if you got mV, you probably took (output) cap output side reading, ref. to GND
though, measurement about/at/of SIT source is not good, I'm expecting approx. half of rail value, not mV
if you got mV, you probably took (output) cap output side reading, ref. to GND
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I didn't want to get near the SIT poking with probes. It isn't like we have a bunch laying around if I shorted something. On a DIY, I'm pretty fearless, on one from Pops not so much. 😛
It's all good though as the output waveform and amplitude shows, so I will trust it's what it should be on the source pin and move on happy in the knowledge that the magic smoke stays inside of the SITs.
It's all good though as the output waveform and amplitude shows, so I will trust it's what it should be on the source pin and move on happy in the knowledge that the magic smoke stays inside of the SITs.
as I said - you did what Pa advised, with check/set for symmetrical clipping
Pa asked for SIT source voltage level as sort of important detail, which shows that everything is in ballpark
Pa asked for SIT source voltage level as sort of important detail, which shows that everything is in ballpark
Source Pin 14.23L 14.68R Rails are both very close to 34.6 Gates are 21.4 and 21.8 respectively.
Assuming GDS pin 3 being the source.
Assuming GDS pin 3 being the source.
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Me too. I can get it to clip in the bass on my 87dB 4R "bass section”, but i rarely push it that hard. A B4 (or equivalent and an XA-25 would help there.
dave
In the hippy market no doubt.... would love to hear his thoughts on the numbers... barring that, do you have any thoughts Z?
JT
JT
Maybe, just maybe.... someone öpened the amp, saw trimpot(s) and thought: "Ooooh, let's turn this thing and see what it does"
Yes, odd voltage numbers...
But adjusting for symmetric clip is all that's required here.
What did we get for power with That?
😀
Congrats on the happy ending!
I am a chicken too when it comes to unobtanium so I can relate. Me really happy that my SIT-3 does so well between the speakers and does not have to spend any time between dummy loads
thoughts:
-with some other speakers you wouldn't even think of firing up measuring equipment, power deficiency not being an issue
-without measuring equipment you would simply try other speakers, not waiting for nearest Greedy Boy to hop with scope
-with that type of amp, last few Watts are irrelevant in 99% of time, everything happening way down
-you bought a Gem, Primadona of your sound system; now you need to find worthy companions
-of course, there is always matter of taste and preferences - that's why there is not just one (type of) Primadona amp; but prerequisite for your purchase was that you** like this exact type
**me too 🙂
(Assembly of SIT amp require great peace of mind.....)
Thanks for the hand holding Pop.
I'll run some tests on distortion numbers in the next few days, but it's more about learning the test equipment and procedure at this point. Since John did a lot of testing, it will be nice to do similar tests and compare data.
I have a pair of Pure Audio Horn1 that might be worth a listen with the SIT.
I was looking at maybe a Cube audio build, but those drivers are way expensive in my book. I heard you did some testing with Cube drivers. What did you think of them?
Let the games begin!
JT
I have always listened with my ears and not my eyes, but now I know more of what my ears and brain like, those numbers, hopefully, will help to select builds that will be more pleasing to me.
Thanks
JT
naah
I'm just pretending in public
far from wise .......
(speakers - say that I'm trusting 158% in whatever Mr. Fullrange J. Ver Halen have to say; though - depending of size of your room - it could be cunning to make a choice between 8", 10'', 12", 15" sensitive drivers, be it FR or DC ....... or whatever; I am FR guy, 110%, but I really spoiled my self with big cones and I'm always thinking that way, when main - big - most potent speakers are in question)
I'm just pretending in public
far from wise .......
(speakers - say that I'm trusting 158% in whatever Mr. Fullrange J. Ver Halen have to say; though - depending of size of your room - it could be cunning to make a choice between 8", 10'', 12", 15" sensitive drivers, be it FR or DC ....... or whatever; I am FR guy, 110%, but I really spoiled my self with big cones and I'm always thinking that way, when main - big - most potent speakers are in question)
Attachments
Yes, unfortunately. Prices tripled when they went to international didtribution instead of selling direct. From this side of th eponf, looks like Sonido is a solid alternative (i haven’t heard either, have done a couple boxes for them).
dave