4500.1 you better upgrade electrical for this guy here if you want to maintain the .5 warranty! Competition grade tank that ready for abuse. .5 stable, 1 ohm when strapped.
 
Includes .5 one year warranty 
4500 at 1 ohm 14.4
2350 at 2 ohm 14.4v
1200 at 4 ohm 14.4v
Tiffany Inputs
1/0 Inputs
Input Sensitivity 6v-.2v
Frequency Response 10hz-250
phase 0-180
THD @ 4ohm > .01
400 amp of fusing (200 per positive run)
Amp dimensions are 
Length: 25 - 1/8”
Width: 9 - 1/16”
Height: 2.75”