Im using the Alpine PDX-M12 to power a Morel Ultimo 12" 2ohm single voice coil sub in a sealed 50ltr (1.7cf) box. I have the gains turned up full to acquire some head room on the sub control. To acquire some sub control I have time aligned forward and pulled the front and rear 6.5" splits back by 6db. The Alpine PDX-F6 is producing 187rms per channel. I have managed to pull a fantastic sound but am sure there should be more sub head room as the M12 is producing 1297rms @ 2ohms plent right? Wrong.
My question are
Is the Alpines IDA-305S head decks output voltage (piss poor 2v output) to low For the M12 @ 2ohms ?
Can this can cause a problem with the gains and output level?
If so how do I increase the output voltage short of buying a new deck?
This just came to me and thought I'd ask for opinions and tech advice?
When I had the old Alpine Mono V12 600rms @ 4ohms running a 4ohm 425rms Polk mm series 12" sub I didn't have any gain or sub control issues, it just wasn't detailed or loud enough.
Edited by Gizzards12, 08 April 2012 - 09:42 PM.