mother's corpse Posted March 22, 2016 Author Share Posted March 22, 2016 All of those frequency graphs look fine... The 5 channels' response played through Speaker 1 looks just like the 5 channels' response through Speaker 2. Meaning each amp channel is generating the same frequency response through each speaker. The woofer differences are within about 0.4 dB or less. And I don't see the 3dB difference at 70Hz you originally measured,or 3dB difference anywhere else. The bigger differences way down low are replicated in each speaker. That's probably the room. The only real difference being at the upper end above 13KHz... and you said that was just in the surround channels and it looks like it's just 1 dB. That could be a difference in the amp due to the power supply. But I bet you can't hear it. I don't think there's anything wrong with your AVR's amp section or channel levels. Or anything that would be outside of normal variances. That's interesting it seems to be all good. But who knows I'm all game for any test you guys want me to conduct. Sent from my LG-D855 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 22, 2016 Author Share Posted March 22, 2016 (edited) High resolution images so you can click and zoom in if needed. Horns edited colors, Woofers edited colors, Edited March 22, 2016 by MrGrey Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 24, 2016 Author Share Posted March 24, 2016 (edited) Klipsch said they will replace the whole speaker so i hope it works out. I wish i lived closer and not 20 hours away. Some phase measurements. Edited March 24, 2016 by MrGrey Quote Link to comment Share on other sites More sharing options...
mustang guy Posted March 24, 2016 Share Posted March 24, 2016 (edited) duplicate post Edited March 24, 2016 by mustang guy Quote Link to comment Share on other sites More sharing options...
mustang guy Posted March 24, 2016 Share Posted March 24, 2016 (edited) Klipsch said they will replace the whole speaker so i hope it works out. I wish i lived closer and not 20 hours away. Some phase measurements. The phase graph tells me the tweeter is wired backwards on the right speaker. Edited March 24, 2016 by mustang guy Quote Link to comment Share on other sites More sharing options...
mustang guy Posted March 24, 2016 Share Posted March 24, 2016 (edited) High resolution images so you can click and zoom in if needed. Horns edited colors, Woofers edited colors, What I am seeing now is that it's not the speaker, it's the amp. If it were the speaker, the like colors would all be together but 3db or so apart. Edited March 24, 2016 by mustang guy Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 24, 2016 Author Share Posted March 24, 2016 High resolution images so you can click and zoom in if needed. Horns edited colors, Woofers edited colors, What I am seeing now is that it's not the speaker, it's the amp. If it were the speaker, the like colors would all be together but 3db or so apart. So it could be the amp giving me all these issues? Pretty strange. The measurement i just did at my main listening place now shows a db difference like it did at first. throughout the whole frequency measurement even when i switched the weak speaker to the center channel it still couldn't match the left in db or phase. What i wanna know is why it didn't show it at the close up sweeps while cycling throughout all channel's. Sent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mustang guy Posted March 24, 2016 Share Posted March 24, 2016 Did you ever place a speaker and the mic and measure with one channel, then remove the speaker and put the other one in the exact same footprint and measure? You would be using the same amp channel and speaker wire for both measurements, and the results will tell you for 100% sure. You must not bump or move the microphone, and the measurements must be with the volume at the exact level. Simply swap the speaker and be very precise about putting the other speaker in the same footprint. The mic should be about 4' away, and about 2/3 the way up the speaker height. That way it will get the tweeter and the woofers pretty well. About the phase chart. I have no clue..... I just looked and see you were measuring bass frequencies only. You might want to run those at the same time with the speaker swap above. I will tell you one thing. Once you get this resolved you will know a heck of a lot more than you did when you started. So will I. 2 Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 25, 2016 Author Share Posted March 25, 2016 Sent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 25, 2016 Author Share Posted March 25, 2016 Klipsch said they will replace the whole speaker so i hope it works out. I wish i lived closer and not 20 hours away. Some phase measurements. The phase graph tells me the tweeter is wired backwards on the right speaker.Funny thing when i look at the graphs the problem speaker looks like a flipped version of the stronger speaker. Sent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 25, 2016 Author Share Posted March 25, 2016 (edited) You can see that the horn of the weaker speaker can't keep up. Measured separately and together. Something is going on inside this speaker. Idk if it wired differently or going bad but it's not 100% up to Klipsch standards. Sent from my LGMS345 using Tapatalk Edited March 25, 2016 by MrGrey Quote Link to comment Share on other sites More sharing options...
Jay L Posted March 25, 2016 Share Posted March 25, 2016 Use an 8k tone and measure both horns at 1 inch from the throat. Use very little output from your soundcard or you will overdrive the microphone. This will show up in REW as a very flat response. The first easy check to do to rule out the AVR is use a 100hz tone and measure each terminal of the speaker. If you see more than .5V difference you found your problem. It is unlikely to find a solid 3dB difference in two speakers as this would not pass our manufacturing process. Sent from my VS986 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 26, 2016 Author Share Posted March 26, 2016 Use an 8k tone and measure both horns at 1 inch from the throat. Use very little output from your soundcard or you will overdrive the microphone. This will show up in REW as a very flat response. The first easy check to do to rule out the AVR is use a 100hz tone and measure each terminal of the speaker. If you see more than .5V difference you found your problem. It is unlikely to find a solid 3dB difference in two speakers as this would not pass our manufacturing process. Sent from my VS986 using Tapatalk Running a 100hz tone while the multimeter is set to 200v AC it seems like i need a good amount of volume to get a reading. When doing that switch between speakers and compare the results?. I have bridge between the HF and LF intact.Sent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jay L Posted March 26, 2016 Share Posted March 26, 2016 what was the reading, and how loud did it seem in the room? Quote Link to comment Share on other sites More sharing options...
Jay L Posted March 26, 2016 Share Posted March 26, 2016 Oh, and if the meter can only read 40-100Hz then use a tone in the meat of the range like 70Hz. Using 100Hz the meter may be rolling off causing a really low voltage reading. Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 26, 2016 Author Share Posted March 26, 2016 (edited) what was the reading, and how loud did it seem in the room?One speaker is 1.3-1.4 the other is 1.3 with no fluctuating 100hzSent from my LGMS345 using Tapatalk Edited March 26, 2016 by MrGrey Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 26, 2016 Author Share Posted March 26, 2016 Oh, and if the meter can only read 40-100Hz then use a tone in the meat of the range like 70Hz. Using 100Hz the meter may be rolling off causing a really low voltage reading.Ok ill also do 70hz right nowSent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 26, 2016 Author Share Posted March 26, 2016 (edited) Oh, and if the meter can only read 40-100Hz then use a tone in the meat of the range like 70Hz. Using 100Hz the meter may be rolling off causing a really low voltage reading. at 70hz Yeah now it's more stable, one is 1.4 and the other is 1.3. The one showing 1.3 is the weak speaker.Sent from my LGMS345 using Tapatalk Edited March 26, 2016 by MrGrey Quote Link to comment Share on other sites More sharing options...
Jay L Posted March 26, 2016 Share Posted March 26, 2016 A pure sine tone on two speakers with 100mV difference is a non issue. Now repeat that test with pink noise. it will be bouncing around a bit so you may need to visually average it out if the meter can't do a peak hold reading. Quote Link to comment Share on other sites More sharing options...
mother's corpse Posted March 26, 2016 Author Share Posted March 26, 2016 A pure sine tone on two speakers with 100mV difference is a non issue. Now repeat that test with pink noise. it will be bouncing around a bit so you may need to visually average it out if the meter can't do a peak hold reading.I see both jump up to 1.2Sent from my LGMS345 using Tapatalk Quote Link to comment Share on other sites More sharing options...
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