BRAND NEW Alpine - 12" Dual-Voice-Coil 4-Ohm Subwoofer question

[rientile]

i just recently bout a Alpine - 12" Dual-Voice-Coil 4-Ohm Subwoofer with Alpine MRP-M650

Mono subwoofer amplifier

how should i set my gain and LPF so idont blow the sub. by the way i have a Kenwood KDC-MP 238 head unit

the specs for each are listed below:

sub...

# Handles up to 1500W peak power (500W RMS)

# KEVLAR-reinforced pulp cone, oversized parabolic dustcap; HAMR surround and concealed mount gasket (KEVLAR is a registered trademark of DuPont)

# High-strength brass voice-coil bobbin; 50mm voice-coil diameter

# Dual progressive oversized Nomex spiders with integrated tinsel leads for added stability

# Dual stacked magnets

# Custom cast aluminum frame with integrated heat transfer plate; radial vented VC heat sink and airflow management system

# 11" top-mount diameter; 7-3/4" top-mount depth

# Magnetically optimized motor structure

# Frequency response: 25Hz - 500kHz

# Sensitivity: 85dB

# Impedance: 4 ohms

amp...

# mono subwoofer car amplifier

# 400 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)

# variable low-pass filter (50-200 Hz, 24 dB/octave)

# tuned Bass EQ (0-12 dB bass boost at 50 Hz)

# subsonic filter (24 dB at 15 Hz)

# MOSFET power supply

# CEA-2006 compliant

# STAR Topology (minimizes internal noise and prevents ground interference)

# speaker- and preamp-level inputs

Click to read more...

 

[SplAffair 10+ year member]

ok

 

[Kastlez_ 10+ year member]

umm.. ya

atleast post pics/vids

 

[Twisted_0912 10+ year member]

cool

 

[masterbassin 10+ year member]

good for you!

 

[99grandprixGT 5,000+ posts]

very nice

 

[jbizzle 5,000+ posts]

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[rientile]

my question was

how should i set my gain and LPF so idont blow the sub. by the way i have a Kenwood KDC-MP 238 head unit