Advanced Discussion

First off I have two alpine pdx 600.1amps each amp is producing over 700 watts I want to buy 2 fi ssd 12s run 1 off each amp anyway here's the questions when ordering I'm asked about flatwind coil yes or no copper coil yes or no and bo power. Could someone explain this to me and what I should do to answer these questions thanks

Okay, now everything has a resonant frequency. At this point, the most energy will be on the object correct? If this is the case, wouldn't it be wise to find the resonant freqency of a particular meter in your intended application and mounting location, measure it, and then design for your peak to be at that point? Wouldn't that produce the highest reading? I'm sure this has been thought of, but I'd like some input. Sean, Neil. . .

Does anybody have any good suggestions on Car Audio Books. More advanced stuff.

I need some help with the best way to hook up my subs. Right now I have one of my Punch P2D210 sub hooked to the B side and the + to the + and - to - like the manual said to do. Would I be better hooking the Sub1+ to the A+ and Sub1- to the B- ? With two subs Punch (P2D210 x 2) am I better off hooking Sub1 + to A+ and Sub1 - to A- / Sub2 + to B+ and Sub2 - to B- OR Amp A+ to Sub1 + / Sub1 - to Sub2 + / Sub2 - to Amp B- ? OR if none of these are are the best way then just let me know the best way. Thanks for the help. Picture of current single sub ( + and - are on B posts)