I have a MINT matching set of LA Strike series 500.1 mono sub amp and a 4ch amp. Both are like new condition and works perfect, asking $200 shipped OBO in the lower 48's. Paypal or USPS M/O, I have tons of Refs on here and DIYMA.
LA S4 500.1
Strike Series 1-Channel Class AB Car Amplifier
RMS Power Rating:
4 ohms: 300 watts x 1 chan.
2 ohms: 500 watts x 1 chan.
LED power and protection indicators
Chrome Plated Cover
Single channel operation
Speaker-level inputs
Preamp RCA outputs
Extruded aluminum convection cooling
Pass-through RCA output
Adjustble 12dB/octave Crossover
Variable high-pass filter (50-250 Hz, 12 dB/octave)
Variable low-pass filter (50-250 Hz, 12 dB/octave)
Frequency response: 15-250 Hz
Dimensions: 12.25" L x 10.5" W x 2.0" H
4-gauge power and ground
LA S4 400.4
400 watts, 4-Channel Amplifier
RMS Power Output:
4 ohms: 50 watts x 4 channels
2 ohms: 100 watts x 4 channels
Bridged, 4 ohms: 200 watts x 2 channels
Power Fuse
Power Connector Terminals
High level Speaker inputs
RCA Input jacks
Level control
Crossover Filter Switch
Adjustable Crossover Frequency control
Remote level control
Speaker connections
Pass thru outputs
Subsonic control
Fuse rating: 30A x 2
Dimensions: 12.25" L x 10.5" W x 2" H

LA S4 500.1
Strike Series 1-Channel Class AB Car Amplifier
RMS Power Rating:
4 ohms: 300 watts x 1 chan.
2 ohms: 500 watts x 1 chan.
LED power and protection indicators
Chrome Plated Cover
Single channel operation
Speaker-level inputs
Preamp RCA outputs
Extruded aluminum convection cooling
Pass-through RCA output
Adjustble 12dB/octave Crossover
Variable high-pass filter (50-250 Hz, 12 dB/octave)
Variable low-pass filter (50-250 Hz, 12 dB/octave)
Frequency response: 15-250 Hz
Dimensions: 12.25" L x 10.5" W x 2.0" H
4-gauge power and ground
LA S4 400.4
400 watts, 4-Channel Amplifier
RMS Power Output:
4 ohms: 50 watts x 4 channels
2 ohms: 100 watts x 4 channels
Bridged, 4 ohms: 200 watts x 2 channels
Power Fuse
Power Connector Terminals
High level Speaker inputs
RCA Input jacks
Level control
Crossover Filter Switch
Adjustable Crossover Frequency control
Remote level control
Speaker connections
Pass thru outputs
Subsonic control
Fuse rating: 30A x 2
Dimensions: 12.25" L x 10.5" W x 2" H