Quantum Audio is your connection to the purest sound, whatever your beat happens to be. The Ultra Series Monoblock Class D Amp (4,500 Watts Max) is the ideal choice to power your extra subwoofer. This is your sound, your city, your neighborhood, your street and your ride. Choose Quantum.

• Class D 1Ω stable monoblock
• Audiophile-grade components
• High-efficiency MOSFET design
• Signal-to-noise ratio: >90dB
• Includes bass remote

Class D 1Ω stable monoblockQUANTUM