Advice on sub wiring

[1baller 10+ year member]

my brother got 2 12'' L7's in a sealed box and is going to power them with a powerbass 3000d.

Subwoofer Specifications

Maximum recommended amplifier power: 750W RMS, 1,500W peak

Square subwoofer design

Impedance: 4 ohms

Frequency response: 20-100Hz

Sensitivity: 88.6dB

Powerbass XA3000d

Specifications Model XA 3000D

Number of Channels 1

Output Power (14.4V) @ 1 ohm 3000 watts

Output Power (14.4V) @ 2 ohm 2000 watts

Output Power (14.4V) @ 3 ohm 1000 watts

Frequency Response 10 Hz - 400 Hz

Total Harmonic Distortion 0.05%

Signal to Noise Ratio @ 100Hz >90 dB

Input Sensivity 200mV - 6V

Dimensions (W x H x L) 10.51" x 2.56" x 20.87"

what ohm should he have them wired at? the subs are going into a 06 avalon

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[mavster 10+ year member]

Hmmm the L7s are D4 right...

Parallel the coils on each sub, and then parallel the subs...get it down to 1ohm...set the gains accordingly on the amp...

thxs RF //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif