Dear hometheatershack community,
I'm a home recording musician from Germany and got the following equipment for mixing:
Notebook: Asus X52DE
Power Amplifier: Sony TA-F470
Speakers: JBL Control 5
I usually use the un-eq-ed output from my notebook, plug it into the AUX IN from the power amp and this signal goes straight to the JBL Control 5 speakers. First, I had some EQ and the LOUDNESS switch turned on (at the power amp). But then I realized, those things have to be turned off because I'm mixing music, so it has to be the "real sound" (linear). But when I did this, the sound became very weak in the bass frequencies. So I bought a Behringer ECM8000 and downloaded the REW from this site to start measuring and then correct the frequency responses by adding EQ filters via APO EQ. But you gotta have 2 calibrations for measuring, one for the mic (already got the file) and one for the soundcard/anything between LINE IN and LINE OUT.
So I've got a Behringer Eurorack UB802 mixer and built up a calibration loop like this:
Notebook Line Out -> Sony Power Amp aux in -> right speaker output -> Behringer mixer right line in input -> back to the notebook input
When I now try to calibrate this signal chain, I can't get the amplitudes of IN and OUT equal. IN is very weak, no matter what I do (if i turn it very loud there is a bit more input but the behringer mixer is already clipping). Also tried to record this input to hear what it sounds like, but also got a very weak white noise. I think this could be because of the microphone input from my notebook. I read that I have to use a USB interface for it, if I just have a microphone input and no line input (but I can't say if it is a "pure" microphone input). Maybe the notebook's microphone IN and line OUT can't function simultaniously?
Could that be the problem?
Anyway, is it necessary at all to calibrate my power amp as well or do I just need to calibrate the soundcard itself? I just can't tell if the power amp does something bad to the frequency responses.
Thanks for your help in advance.
I'm a home recording musician from Germany and got the following equipment for mixing:
Notebook: Asus X52DE
Power Amplifier: Sony TA-F470
Speakers: JBL Control 5
I usually use the un-eq-ed output from my notebook, plug it into the AUX IN from the power amp and this signal goes straight to the JBL Control 5 speakers. First, I had some EQ and the LOUDNESS switch turned on (at the power amp). But then I realized, those things have to be turned off because I'm mixing music, so it has to be the "real sound" (linear). But when I did this, the sound became very weak in the bass frequencies. So I bought a Behringer ECM8000 and downloaded the REW from this site to start measuring and then correct the frequency responses by adding EQ filters via APO EQ. But you gotta have 2 calibrations for measuring, one for the mic (already got the file) and one for the soundcard/anything between LINE IN and LINE OUT.
So I've got a Behringer Eurorack UB802 mixer and built up a calibration loop like this:
Notebook Line Out -> Sony Power Amp aux in -> right speaker output -> Behringer mixer right line in input -> back to the notebook input
When I now try to calibrate this signal chain, I can't get the amplitudes of IN and OUT equal. IN is very weak, no matter what I do (if i turn it very loud there is a bit more input but the behringer mixer is already clipping). Also tried to record this input to hear what it sounds like, but also got a very weak white noise. I think this could be because of the microphone input from my notebook. I read that I have to use a USB interface for it, if I just have a microphone input and no line input (but I can't say if it is a "pure" microphone input). Maybe the notebook's microphone IN and line OUT can't function simultaniously?
Could that be the problem?
Anyway, is it necessary at all to calibrate my power amp as well or do I just need to calibrate the soundcard itself? I just can't tell if the power amp does something bad to the frequency responses.
Thanks for your help in advance.