Hartke KB15 Kickback 1 X 15-Inch 500-Watt Bass Combo Amp 500W 1X15" Bass Guitar Amplifier Combo With Paper/Aluminum Speaker Cone, Neodymium Magnet,

Hartke HD508 4 X 8-Inch 500-Watt Bass Combo Amp 500-Watt, 4X8" Bass Combo Amp With Paper/Aluminum-Cone Drivers, XLR Direct Out, 1/4" Headphone Out,

Hartke HD500 2 X 10-Inch 500-Watt Bass Combo Amp 2X10" 500W Bass Combo With Hydrive Paper/Aluminum Speakers, XLR Direct Out, 1/4" Headphone Out, And

Hartke HD75 1 X 12-Inch 75-Watt Bass Combo Amp 1X12" 75W Bass Combo With Hydrive Paper/Aluminum Speaker And 1" Tweeter