I have two five channel carver av-705x poweramps. all channels has their own level control.
I need their individual voltage output to macht eachother.
can i measure voltage output precisely? and how?
best regards
panduro
I need their individual voltage output to macht eachother.
can i measure voltage output precisely? and how?
best regards
panduro
thanks for answering.
That is a good question(because i dont know the answer...) static or dynamic, is that about load or frequency?
i think that static would be fine, just need to be sure that the different channels output same voltage matched in pairs. You know, left/right lf, left/right hf and so on, it would make it a bit easier to do active xover "design".
best regards
panduro
That is a good question(because i dont know the answer...) static or dynamic, is that about load or frequency?
i think that static would be fine, just need to be sure that the different channels output same voltage matched in pairs. You know, left/right lf, left/right hf and so on, it would make it a bit easier to do active xover "design".
best regards
panduro
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Static: Set and leave (supervisory)
Dynamic: Adjust on the go (compresssor/expander)
Each approach has it's own challenges and solutions. What is the application? E
Dynamic: Adjust on the go (compresssor/expander)
Each approach has it's own challenges and solutions. What is the application? E
Do you have access to a sound-meter? (i don't know the word in english for this, the readings you could get are in decibels of SPL) It measures from each source, you could sit in the center of the 5.1 if that's the application or in the center of the stereo and measure each channel SLP separately, this way you will now if they match and if they differ, by how much decibels, and it takes into consideration not only raw power but efficiency of the speakers, layout, cabinet,etc, It should be done not with tones but with pink-noise. If you happen to like Pink floyd music, the pulse DVD has a nicely done tool to set up a 5.1 with the "sono-meter" using pink noise, but you can get those sources from any analyzer program such as RTA.
regards.
regards.
application, it for bi/tri amped speakers for homecinema, xover is dbx pa+.
im having a real hard time getting the exact same sound level out from the midrange drivers(same drivers, same enclosures, same stuffing) in the right and left speaker when they are fed by 2 different channels in the power amplifier.
They simply dont play the same volume when i have tried to adjust the level controls by using pink/white noise and a spl meter.
The dbx is set to the same gain for both drivers and they get identical signals.
so i think i have too measure the output voltage in the poweramp to be able too set the those level controls in the power amp precisely.
Did that clarify my problem?
im having a real hard time getting the exact same sound level out from the midrange drivers(same drivers, same enclosures, same stuffing) in the right and left speaker when they are fed by 2 different channels in the power amplifier.
They simply dont play the same volume when i have tried to adjust the level controls by using pink/white noise and a spl meter.
The dbx is set to the same gain for both drivers and they get identical signals.
so i think i have too measure the output voltage in the poweramp to be able too set the those level controls in the power amp precisely.
Did that clarify my problem?
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Yes i have tried a spl meter, but it seems that the level of pink/white noise isn't completely flat, it rises and falls.
tried with two different meters, low budget radioshack and a better digital vellemann spl meter. same result.
tried with two different meters, low budget radioshack and a better digital vellemann spl meter. same result.
There are members here more qualified than me in order to measure the output power/peaks. You could go with an oscilloscope and measure the Vout with a tone as input, using same signal source, with real speakers as loads I've always had a hard time with triggering the signal in my old analog oscilloscope, you can try dummy loads instead for a preliminary observation and then go on with the speakers.
Dummy question.. I assume you swapped the speakers and the problem was still there..just asking. I do hope some members can give you a more accurate solution.
regards.
Dummy question.. I assume you swapped the speakers and the problem was still there..just asking. I do hope some members can give you a more accurate solution.
regards.
There's a thread around here talking about setting the voltmeter in AC and it will give a comparative reading between the differences of volume. I mean use a tone, and use the volt meter in the AC scale at the output amplifier. Try searching for this thread. It sounded good to me, but i can't remember the frequency of the tone-signal, which I think is critical.
I hope this helps.
regards.
Out of curiosity, your nickname means "hardbread" in spanish, even families here are called by that nickname. Does it have another significance?
regards.
I hope this helps.
regards.
Out of curiosity, your nickname means "hardbread" in spanish, even families here are called by that nickname. Does it have another significance?
regards.
ok cool, ill find that thread, sounds like what i was looking for.
I know what it means in spanish 🙂 no other meaning, its my middle name from my mothers famely, the guy stayed in denmark after world war one, because of a woman...
best regards
panduro
I know what it means in spanish 🙂 no other meaning, its my middle name from my mothers famely, the guy stayed in denmark after world war one, because of a woman...
best regards
panduro
There's a family in my village called exactly like that. I don't know for real if it's a nickname of the family or a last name. That is not a common last name in spanish, maybe you have relatives down here.
Anyway good luck with the levels.
Kind regards.
Anyway good luck with the levels.
Kind regards.
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