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Post by ampednready on Jul 11, 2021 17:04:40 GMT -5
I am getting an XPA5 amplifier delivered tomorrow which will be replacing an A-5175 amplifier in my home theater system. I have previously calibrated my system when I originally installed the A-5175. Should I re-calibrate it after installing the XPA5? I wasn't sure if amplifier power differences would require me to go through the re-calibration process again.
Thanks.
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Post by davidl81 on Jul 11, 2021 21:15:35 GMT -5
I am getting an XPA5 amplifier delivered tomorrow which will be replacing an A-5175 amplifier in my home theater system. I have previously calibrated my system when I originally installed the A-5175. Should I re-calibrate it after installing the XPA5? I wasn't sure if amplifier power differences would require me to go through the re-calibration process again. Thanks. I would re do the calibration. Mostly just because there may be a slight difference in base line dB gain from the two amps. |
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KeithL
Administrator 
Posts: 9,928
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Post by KeithL on Jul 12, 2021 10:20:52 GMT -5
Both amplifiers have a very flat frequency response and likewise a very clean phase response. Therefore there should be no need to re-run room correction.
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Post by leonski on Jul 13, 2021 17:18:55 GMT -5
I am getting an XPA5 amplifier delivered tomorrow which will be replacing an A-5175 amplifier in my home theater system. I have previously calibrated my system when I originally installed the A-5175. Should I re-calibrate it after installing the XPA5? I wasn't sure if amplifier power differences would require me to go through the re-calibration process again. Thanks. I would re do the calibration. Mostly just because there may be a slight difference in base line dB gain from the two amps. There probably WILL be 'slight differences'.... which makes the real question, in several parts. 1. How REPEATABLE are your measures with your setup? 2. Will such slight differences actually matter? 3. What is the +- error of ANY given measurment? 4. Will any differences PERCEIVED be to the good or bad? |
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Post by repeetavx on Jul 16, 2021 13:17:08 GMT -5
Trust your ears. Like Keith said, on paper there shouldn't be any difference. Did your last amp break, or did you "upgrade" to hear no difference? Only you can decide if your system needs "tweeking".
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