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justcop

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  1. I have another question for those that can maybe help. Got my high and mid stage set on a 4x100 channel. Got the undistorted reading from the amp gain about 1/3 turn) at full volume from the head unit(also previously checked for no distortion) . I wanted to turn down the amp sensitivity slightly to match the ac volts / watts for my components. However, the voltage is way over what it should be for the channels. Everything is turned to zero on the HU to get flat signal. For example : used zero db 1k signal test and the voltage is way more then the amp says it produces. Trying to get to about 14.1 volts and the no distortion level is like 24 +-1 volts. Why is this? If a no distortion level on a 100 watt channel is registering 130 to 150 watts. Amp is jl xd400 bottom line: do I go by dd1 or voltometer to adjust for a lower ohm load? Does the dd1 account for when you hook up lower impedance?
  2. I have another question for those that can maybe help. Got my high and mid stage set on a 4x100 channel. Got the undistorted reading from the amp gain about 1/3 turn) at full volume from the head unit(also previously checked for no distortion) . I wanted to turn down the amp sensitivity slightly to match the ac volts / watts for my components. However, the voltage is way over what it should be for the channels. Everything is turned to zero on the HU to get flat signal. For example : used zero db 1k signal test and the voltage is way more then the amp says it produces. Trying to get to about 14.1 volts and the no distortion level is like 24 +-1 volts. Why is this? If a no distortion level on a 100 watt channel is registering 130 to 150 watts. Amp is jl xd400
  3. Bought a new head unit. Max volume number is 40. The dd1 is showing distortion at 28 through speaker outputs. It doesn't show any distortion through the rca outputs at 40/max (signal is registering). Is this possible (due to the quality of signal, error, other)? Tried switching up jacks as well. Thank you in advance J
  4. I have 4 Srx 12s and it looks like you have them. All the srx line leaves the x off the cone and in the manual that comes with them.
  5. I think the Fosgate series punch 2 dual fours. They are very nice and tough looking ans good for sq imo
  6. Also Edgar, it helps in tuning also because the subs sense/split the volume, but your port will not. It will sense 12 cubes. So in other words, your port can be shorter as well, which is an added benefit of common chambers.
  7. Do I need one in my new 12 Frontier? My manual says not to hook up any aftermarket wires to my ground or it will cause the voltage module to malfunction and the computer won't allow proper charging. Any help because I've never upgraded a newer ride?
  8. Steve, I am getting ready to use the same amp in a crew cab build (12 frontier) and already have a jl xd400 for highs and mids. I am replacing my 500 cp with the 2500. What kind of electrically upgrades did you do with the Lexus? I've done none but wire upgrade with my current setup at 1 ohm and it struggles after 15 secs of sub 50 Hz...
  9. Went to JL dealer nearby today and their rta mike wasn't working right and they were going to charge me anyway to meter it half a$$ so I will wait. The installer gave me a good estimate of what DB area I was in
  10. http://img844.imageshack.us/i/imag0128tp.jpg/ http://img96.imageshack.us/i/imag0134x.jpg/ Using phone...had to paste
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