selecting a sub for xxv-03a amp?

i'm looking for some good suggestions (brand/make & model/ or even just specs) on a sub to go with my amp.  i have a xxv-03a and here are the specs from the manual:

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Audio Section

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Max Power Output .....................................................................................................................................................................................................................1600 W

Rated Power Output (+B = 12.0 V)

(4 ohm) (20 Hz – 200 Hz, 0.5 % THD) .................................................................................................................................................................300 W x 1

(2 ohm) (100 Hz, 0.5 % THD) ...................................................................................................................................................................................600 W x 1

Rated Power Output (+B = 14.4 V)

(4 ohm) (20 Hz – 200 Hz, 0.5 % THD) .................................................................................................................................................................400 W x 1

(4 ohm) (DIN45324, +B = 14.4 V) .........................................................................................................................................................................400 W x 1

(2 ohm) (100 Hz, 0.5 % THD) ...................................................................................................................................................................................800 W x 1

(1 ohm) (100 Hz, 1.0 % THD) ................................................................................................................................................................................1000 W x 1

Low Pass Filter Frequency (24 dB/oct.) ............................................................................................................................................50 – 200 Hz (variable)

Infrasonic Filter Frequency (24 dB/oct.) ...................................................................................................................................................... OFF / 15 / 25 Hz

Phase Inverter ...................................................................................................................................................................................0° (Normal) / 180° (Reverse)

Band Reject Filter Frequency .................................................................................................................................................................40 – 200 Hz (variable)

Frequency Response (+ 0 , – 3 dB) ......................................................................................................................................................................5 Hz – 200 Hz

Signal to Noise Ratio ..................................................................................................................................................................................................................100 dB

Sensitivity (rated output) (MAX.) .............................................................................................................................................................................................0.2 V

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Sensitivity (rated output) < face=MyriadPro-Light >(MIN.) ..............................................................................................................................................................................................5.0 V

Input Impedance ........................................................................................................................................................................................................................... 10 kÙ

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Amplifier Control Section (EQ)

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Bass frequency ............................................................................................................................................................................................. 60 / 80 / 100 / 200 Hz

Bass level .......................................................................................................................................................................................................................... -15 — +15 dB

Bass Q factor ................................................................................................................................................................................................ 1.00 / 1.25 / 1.50 / 2.00

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General

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Operating Voltage .......................................................................................................................................................................... 14.4 V (11 – 16 V allowable)

Current Consumption ....................................................................................................................................................................................................................55 A< face=MyriadPro-Light >

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CEA-2006

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RMS Watts per channel at 4 ohms < 1 % THD+N ................................................................................................................................................533 W x 1

RMS Watts per channel at 2 ohms < 1 % THD+N ................................................................................................................................................919 W x 1

i had a kenwood kfc-xw1202dvc, but ended up smoking it.  obviously i need something that can handle a little more, but i would like to stay with kenwood, and stick under the $200 area.  but, somewhat flexable on brand.  any good suggestions?  i've just been getting so stinkin confused with dvc's, running in parallel, series, dropping ohm load, ect.  the mono amp has a right and left channel. (go figure for a mono??)  so, i'm just not sure what's the best selection for sub, and wiring.  thanks for the help!!!

left and right on mono amp?-  the +'s are both connected, and the -'s are both connected together inside the amp.  they do this to make it easier for you to wire two subs to the amp.  If you have a digital multi meter, you can test continuity through (left and right) positive and negative terminals, respectively. 

as for a sub, i would run a 4-ohm dvc sub (if you are only running one), and wire it in parallel to the amp, giving the amp a 2-ohm load.  as for a brand of sub, i dunno- haven't really been too impressed with anything recently, except the high end stuff.   

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(4)g5-1244, (4)gtr12, (2)ppipcx2400, (1)pcx4125, (1)pc4800.2, (3) pair mb quart 6.5"Q, (4)optimas, alumapro (1)5 and(1)15 farad cap, premier deh-p860mp, pioneer xm -dual H.O. alternators