Hi, some help here please!!!!

I recently upgraded to a crown macro tech 9000i amp to power my 2 (4 Ohms) Danley TH-118s

My previous amp experience was with the EV CP4000s which I figured out. But I am having a hard time with my new amp.

I have 2 questions

1) Should I power one sub from each channel or should I bridge the sub to power the subs?

2) If bridge is the answer how do I do it?

Anyway this is the back panel:

**and here are the amps specs:**Power Output

Guaranteed minimum power in watts at 20 Hz-20 kHz with 0.35% THD

4-ohm Dual (per ch.).................................3,500W

8-ohm Dual (per ch.).................................1,500W

4-ohm Bridge.............................................5,600W

8-ohm Bridge.............................................7,000W

2-ohm Dual (per ch.) / 20 mS BURST.......4,700W

2-ohm Dual (per ch.) / 20 Hz - 20 kHz......2,800W

2-ohm Dual (per ch.) / 1 kHz.....................2,800W

**Here are the subs specs:** Operating Frequency Range ........................ 40 Hz -250 Hz - 3 dB

.................................................................... 28 Hz – 300 Hz -10dB

Sensitivity @ 1M ............................................................ 108 dBSPL

.............................................................. 112 dBSPL @ 100 Hz max

........ (Referenced to 2.83V @1M ½ space, measured as 28.3V @ 10M)

Maximum Output ................................. 137 dBSPL/143 dBSPL Peak

............................................. 143 dBSPL/149 dBSPL Peak @ 134 Hz

Input Power Ratings ................. 1800 W continuous, 3600 W program

Nominal Impedance .................................................................. 4 ohms

Minimum Impedance ................................................. 3 ohms @ 67 Hz

Recommended Processing ................ 25 Hz HP @ 24 dB/Butterworth

Drivers ......................................................... LF 1 x 18” Long excursion

Input Connections ................................................................. 2-NL4MP

Enclosure Material ............ 13ply, 18mm Baltic Birch, polyurea coate

Thanks for your replies!!!!!