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<blockquote data-quote="txred0810" data-source="post: 911732" data-attributes="member: 561267"><p>I have been trying to set my amp correctly for some time now. I have a JBL 300.1 and it is rated for 150 watts at 4 ohms and 300 at 2 ohms. Right now I am running two JL W0 8 ohm single VC speakers wired in series to produce a 4 ohm load. Using the tutorial this means i should set my amp channel to measure 24.5 ACvolts (sqrt of 150*4). I put in a test tone cd at -6db at 50hz for about a 2:1 ratio. turned the volume up to 26 out of 32 subwoofer level at 0 bass at 0 etc etc. I then proceeded to check the voltage and it was around 22 volts with the gain all the way up to 250mV. I can&#039;t ever get the voltage to reach anywhere near 24.5 volts. Am i doing something wrong?? I followed all the directions... im pretty sure my preouts are 4.5v so that would generally mean to barely turn the gain up since the the highest volts are 4 on my amp. Anyways im lost!! I can set it well by ear but i want it to be perfect...</p></blockquote><p></p>

[QUOTE="txred0810, post: 911732, member: 561267"] I have been trying to set my amp correctly for some time now. I have a JBL 300.1 and it is rated for 150 watts at 4 ohms and 300 at 2 ohms. Right now I am running two JL W0 8 ohm single VC speakers wired in series to produce a 4 ohm load. Using the tutorial this means i should set my amp channel to measure 24.5 ACvolts (sqrt of 150*4). I put in a test tone cd at -6db at 50hz for about a 2:1 ratio. turned the volume up to 26 out of 32 subwoofer level at 0 bass at 0 etc etc. I then proceeded to check the voltage and it was around 22 volts with the gain all the way up to 250mV. I can't ever get the voltage to reach anywhere near 24.5 volts. Am i doing something wrong?? I followed all the directions... im pretty sure my preouts are 4.5v so that would generally mean to barely turn the gain up since the the highest volts are 4 on my amp. Anyways im lost!! I can set it well by ear but i want it to be perfect... [/QUOTE]

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