1 channel of MiniA working - measurments - Page 6

Stabist · 2nd November 2005, 10:49 PM

Yep - 10-15W ain't that little at all

jleaman · 2nd November 2005, 11:13 PM

Heck no.. Running 4 mini a's at full 1amp bias 1 stereo block per speaker connected bi-amp. Worknig great.. Of course they are still connected to the test speakers incase soemthign does happen

jleaman · 3rd November 2005, 06:40 AM

Here are 4 mini a's running perfectly So nice. I'm keeping them all on all day it keeps my room warm, since we have no heaters here these work better.

Stabist · 7th November 2005, 06:43 PM

Quote:

Originally posted by jleaman
Heck no.. Running 4 mini a's at full 1amp bias 1 stereo block per speaker connected bi-amp. Worknig great.. Of course they are still connected to the test speakers incase soemthign does happen

Mine operates at 1,5A bias and around 13,5-15V rails under load ... (this 1,5V volts of difference are the result of our house 230V is indeed very strictly within +/-10% - but unfortunately that also means during the day it "jumps" from around 210V to 250V

(( )

Well, I'll allready "switched" from test speakers to more serious ones - but still - I know perfectly what you mean ...
I still have some strange startups from time to time - when the amp gets full -V at speakers outputs

(( for few seconds

In normal circumstances that is not the case - but I'm still not sure is it possible to get such possibly speaker damaging spike at some rare occasions (like AC 230V cut off for a moment - that's something that's quite "often" in our town)

jleaman · 8th November 2005, 03:19 AM

Are yuo using thermisters on the ac line ? I am.. i saw a diference totally in startup.

Stabist · 8th November 2005, 07:51 AM

Yeah, I do use a termistor - but in particullary case when there is AC short term (0.xy sec) "shut down" - which is quite often in our neighbourhood

--> termistor doesn't help much - it's still warm enough to have almost 0 resistance - so it isn't doing it's function

((

As said - I really don't get it what is the problem - same PCB - just used as a A5 - no problems at all ... This one - in majority works OK - but again and adain during test phase - from time time at powering on - it "sucks" the speaker membrane in and it stays there for few seconds (I guess it would - since I switch it off instantly) ...

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2nd November 2005, 10:49 PM	#51
Stabist diyAudio Member Join Date: Sep 2002 Location: Slovenia	Yep - 10-15W ain't that little at all

2nd November 2005, 11:13 PM	#52
jleaman Banned Join Date: Apr 2002	Heck no.. Running 4 mini a's at full 1amp bias 1 stereo block per speaker connected bi-amp. Worknig great.. Of course they are still connected to the test speakers incase soemthign does happen

8th November 2005, 03:19 AM	#55
jleaman Banned Join Date: Apr 2002	Are yuo using thermisters on the ac line ? I am.. i saw a diference totally in startup.

8th November 2005, 07:51 AM	#56
Stabist diyAudio Member Join Date: Sep 2002 Location: Slovenia	Yeah, I do use a termistor - but in particullary case when there is AC short term (0.xy sec) "shut down" - which is quite often in our neighbourhood --> termistor doesn't help much - it's still warm enough to have almost 0 resistance - so it isn't doing it's function (( As said - I really don't get it what is the problem - same PCB - just used as a A5 - no problems at all ... This one - in majority works OK - but again and adain during test phase - from time time at powering on - it "sucks" the speaker membrane in and it stays there for few seconds (I guess it would - since I switch it off instantly) ...