DS18 EXL-P1200X4 – 4 Channels Class A/B Car Amplifier – 600 Watts RMS 4-Ohms Bridged – Made in Korea
Rockford Fosgate T600-4 Power 600 Watt 4-Channel Amplifier - Walmart.com
Soundigita SD600.4 EVO 5 - 4 ohms Car Aaudio Amplifier 4 Channels 600
Wet Sounds Htx4: Class D 600 Watt 4-channel Amplifier : Target
Power 600 Watt 4-Channel Amplifier | Rockford Fosgate ®
Sinbosen K4-600 1u class d digital power amplifier 4 channels karaoke amplifier 600 watt | 4 Ohms Stable Amplifier | Sinbosen| Audio sound system manufacturer
American Bass 4 Channel Amplifier 600 watt class A/B Car Audio Amp DB6754FR | eBay