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<blockquote data-quote="djunified" data-source="post: 7645470" data-attributes="member: 639620">Hello all,I have some spare LOC&#039;s laying around, and an Alpine CDE-100 which is now my test deck. I originally bought the LOC&#039;s to use with my stock Ford stereo system. They worked great, but at about half volume, the bass started to sound really crappy and distorted. It was nothing to do with the gains on both the amp and LOC, so i took the LOC&#039;s and chose a different route.I hooked them up to my test deck today, and noticed something very interesting. With my o-scope attached, I played a 40Hz 0dB tone, and observed the wave. It looked like a normal sine wave until about volume 26. Then it turned into a wave that I&#039;ve never seen before.Here&#039;s the interesting part. This &quot;odd&quot; looking wave only showed up when playing the 40 Hz tone. When I played the 1 kHz tone, it looked like a normal sine wave, and started clipping normally at volume 30. The same applied to the 4 kHz tone.Hopefully some of you audio guru&#039;s out there can identify this mysterious waveform. Pictures are below[ATTACH]26530615[/ATTACH][ATTACH]26530616[/ATTACH]</blockquote>

[QUOTE="djunified, post: 7645470, member: 639620"] Hello all, I have some spare LOC's laying around, and an Alpine CDE-100 which is now my test deck. I originally bought the LOC's to use with my stock Ford stereo system. They worked great, but at about half volume, the bass started to sound really crappy and distorted. It was nothing to do with the gains on both the amp and LOC, so i took the LOC's and chose a different route. I hooked them up to my test deck today, and noticed something very interesting. With my o-scope attached, I played a 40Hz 0dB tone, and observed the wave. It looked like a normal sine wave until about volume 26. Then it turned into a wave that I've never seen before. Here's the interesting part. This "odd" looking wave only showed up when playing the 40 Hz tone. When I played the 1 kHz tone, it looked like a normal sine wave, and started clipping normally at volume 30. The same applied to the 4 kHz tone. Hopefully some of you audio guru's out there can identify this mysterious waveform. Pictures are below [ATTACH=CONFIG]26530615[/ATTACH][ATTACH=CONFIG]26530616[/ATTACH] [/QUOTE]

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