how to match gains with 2v hu and 7v eq w

Here is my setup I need to figure out how to gain match Pioneer 4800HD HU 2V Pre-Outs Clarion ESQ746 7V Pre-Outs All Amps 5V max Input 2 Audiopipe ASPM-1500s 5V Inputs 1 JBL 4 Channel 50x4 100X2 RMS 5V Inputs 1 MB Quart Ref640.4 4-Channel 80x4 160x2 RMS 5V Inputs The problem is my Pioneer HU is 2V Out going into my New Clarion EQ which is 7V Preout How can I gain match these back to my amps that are 5V max Input? I don't have an Oscope so I can’t use that. I have a Multimeter that I set everything up with fine before I got the Clarion. But this 7V Clarion has me confused because I know my gains will need to change on my 3 amps if I'm right because of the larger 7Volt Clarion EQS 746 Pre-Outs going into the amps that are 5 V Max Input. Correct?

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This EQ really has me confused, I know it is probably not as confusing as it seems I just want to know if I can hook my HU up to the EQ Main Input and then use test tones to set my amps with multimeter, following this chart How to properly set your amplifier gains using the DMM method - PLEASE STICKY - Club3G Forum : Mitsubishi Eclipse 3G Forums From this video How to Tune your car amp the right way - YouTube [YOUTUBE] How to Tune your car amp the right way - YouTube[/YOUTUBE]