MB Quart NA540.6
Price: $233
540W 6-Channel Nautic Series Class A/B Car Audio Amplifier
 MB Quart NA710.5
Price: $249
710W 5-Channel Nautic Series Class A/B Car Audio Amplifier
 MB Quart NA360.4
Price: $128
360W 4-Channel Nautic Series Class A/B Car Audio Amplifier
 MB Quart NA180.2
Price: $95
180W 2-Channel Nautic Series Class A/B Car Audio Amplifier
MB Quart NAU 660
Price: $166
540W Max, Nautic Series 6-Channel Marine Amplifier
MB Quart NAU 460
Price: $110
360W Max, Nautic Series 4-Channel Marine Amplifier
Alpine Marine PDX-4.100M
Price: $350
Marine Series 4-Channel Power Density Digital Amplifier
Alpine Marine PDX-5M
Price: $499
5-Channel Class-D Marine Digital PDX Amplifier