setting gain im lost.

Part list: Amplifier: Pioneer GM-D7400M (400W RMS at 2 Ohms) Head unit: Sony XPLOD CDX-GT220 ( Preout 2v ) Subwoofer: Apline Type-S SWS-1043D (DVC 4 Ohms, 300W RMS) Box: Bassworx GPH10BK 10" Ported 1.4 cu.ft. 40Hz Hey, im still confuse how to set my gain. If i check in the manual of my amplifier it said if you have a 2v preout then set it to "normal". But when i set it to normal and my HU Sub +0 there still not very enough bass.. Is this normal for 400W Rms? Will the best is to change my HU for 4v Preout?

i am an idiot wrote: Turn it more clockwise until the desired level is reached.

Yea but... how to hear clipping???

sublinux wrote: i am an idiot wrote: Turn it more clockwise until the desired level is reached. Yea but... how to hear clipping???

If you play a test tone you can hear the onset of clipping when the tone changes - usually it goes "sharp."  But please read through the link above.

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normally a higher signal voltage is desirable. If you can use 4v, use it. Always start with the gain turned down and work your way up after you adjust the volume at the head unit. I turn the volume all the way up (with the gain down) and work it up little by little. I use ear plugs and listen for the clipping with known recorded music. This method ensures the volume can be turned up all the way without blowing the speakers apart...what good is 75% useless volume range anyways?

telling something to turn the volume all the way up is retarded...that pretty much guarantees the signal going to the amp is already clipped.Custom Enclosure Design