This seem like a good system setup to get more power out of the subs? I am not sure about the whole mono amp - dual channel sub thing works. Will it work together fine?
Power Acoustik Bamf5500/1d Bamf Series Class D Amplifier - $273.99
http://www.beachaudio.com/Power-Acoustik/Bamf5500-1d-p-155248.html
* 1 x 1700W RMS (15Hz to 150Hz) @ 4Ohm 0.5% THD
* 1 x 2500W RMS (15Hz to 150Hz) @ 2Ohm 0.5% THD
* 1 x 3200W RMS (15Hz to 150Hz) @ 1Ohm 0.5% THD
# HIGH SPEED DIGITAL CIRCUITRY
# FULLY REGULATED PWM POWER SUPPLY
# 4-WAY PROTECTION CIRCUIT
# 1ohm STABLE
# BRIDGING SYNCHRONIZATION
# VARIABLE LOW PASS40 HZ-200 HZ
# VARIABLE SUBSONIC FILTER20 HZ-50 HZ
# VARIABLE SUBWOOFER EQ @ 45 HZ
# 0-180 PHASE SWITCH
# FREQ RESP: 15 HZ-150 HZ
# S/N RATIO: 100 DB
# THD: 0.5%
# NPUTS SENSITIVITY: 200MV-8V
# DUAL MONO SPEAKER OUTPUT CONNECTORS
# PLATINUM PLATED HEAVY DUTY POWER & SPEAKER TERMINALS
# REMOTE DASH MOUNT LOW LEVEL GAIN CONTROL WITH CABLE
# SYSTEM DISTRESS INDICATOR
# 1700W
TWO - Power Acoustik P3-12W - 2600W Max, 12" Dual 2 ohms P3 Series Subwoofer - $77.99 - $155.98
http://www.beachaudio.com/Power-Acoustik/P3-12w-p-254653.html
# 12" Dual 2 ohms P3 Series Subwoofer
# Power Handling:
* Peak: 2600 watts
* RMS: 1300 watts
# Polypropylene injection molded cone woofer
# Butyl rubber surround
# Poly cotton spider
# Texture coat finish on stamped steel basket
# KSV Kapton voice coil
# Nickel plated 8 Gauge compression wire terminal
# Suspension integrated tinsel leads
# 150 oz. Magnet structure
# Sensitivity: 83 dB
Kinetik HC800 - 800 Watt 12 Volt Power Cell Battery - $105.62
http://www.amazon.com/Kinetik-HC800-Watt-Power-Battery/dp/B000LUDEOI/ref=sr_1_2?ie=UTF8&s=automotive&qid=1241481094&sr=1-2