Quantum Audio
Quantum Audio delivers a diverse range of car audio products, from amplifiers and speakers to subwoofers and complete sound systems, all engineered for exceptional performance and precision. Whether you're upgrading your current audio system or building an entirely new one, Quantum Audio provides the perfect solutions to transform your in-car sound experience. Shop now with Designer Motorsports for great prices, free shipping and fast customer service support! Be sure to join our affiliate program for exclusive low prices!
-
Sold Out
Quantum Audio QRX1504 | 1200W 4 Channel Full Range Amplifier
Quantum Audio
Price: $249.98Quantum Audio QRX1504 | 1200W 4 Channel Full Range Amplifier The Quantum Audio QRX1504 is a high-efficiency 4-channel Class D car amplifier designed for high-power output in a compact "mini" or "micro" footprint. It is built to deliver full-range...Price: $249.98 -
On Sale
Quantum Audio QWX 15 Package | Dual 15" 4000W D4 Subwoofers & QPower HD Sealed Box
Quantum Audio
On Sale: $579.96Was: $674.95Quantum Audio QWX 15 Package | Dual 15" 4000W D4 Subwoofers & QPower HD Sealed Box The Quantum Audio QWX4000/15D4 is the 15-inch powerhouse of the Quantum X Series, built for extreme air displacement and deep low-frequency performance. It features a...On Sale: $579.96Was: $674.95 -
On Sale
Quantum Audio QWX 15 Package | 15" 4000W D4 Subwoofer & QBomb Kerf Ported Box
Quantum Audio
On Sale: $399.99Was: $489.97Quantum Audio QWX 15 Package | 15" 4000W D4 Subwoofer & QBomb Kerf Ported Box The Quantum Audio QWX4000/15D4 is the 15-inch powerhouse of the Quantum X Series, built for extreme air displacement and deep low-frequency performance. It features a...On Sale: $399.99Was: $489.97 -
On Sale
Quantum Audio QWX 15 Package | 15" 4000W D4 Subwoofer & QPower HD Ported Box
Quantum Audio
On Sale: $289.98Was: $374.97Quantum Audio QWX 15 Package | 15" 4000W D4 Subwoofer & QPower HD Ported Box The Quantum Audio QWX4000/15D4 is the 15-inch powerhouse of the Quantum X Series, built for extreme air displacement and deep low-frequency performance. It features a...On Sale: $289.98Was: $374.97 -
Quantum Audio QWX 15 Inch 4000W Max DVC 4 Ohm Subwoofers | QWX4000/15D4 (Pair)
Quantum Audio
Price: $579.96Quantum Audio QWX 15 Inch 4000W Max DVC 4 Ohm Subwoofers | QWX4000/15D4 (Pair) The Quantum Audio QWX4000/15D4 is the 15-inch powerhouse of the Quantum X Series, built for extreme air displacement and deep low-frequency performance. It features a massive...Price: $579.96 -
Quantum Audio QWX 15 Inch 4000W Max DVC 4 Ohm Subwoofer | QWX4000/15D4
Quantum Audio
Price: $289.98(1) Quantum Audio QWX 15 Inch 4000W Max DVC 4 Ohm Subwoofer | QWX4000/15D4 The Quantum Audio QWX4000/15D4 is the 15-inch powerhouse of the Quantum X Series, built for extreme air displacement and deep low-frequency performance. It features a massive...Price: $289.98 -
On Sale
Quantum Audio QWX 12 Package | Dual 12" 4000W D4 Subwoofers & QPower HD Ported Box
Quantum Audio
On Sale: $499.96Was: $604.95Quantum Audio QWX 12 Package | Dual 12" 4000W D4 Subwoofers & QPower HD Ported Box The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass...On Sale: $499.96Was: $604.95 -
On Sale
Quantum Audio QWX 12 Package | Dual 12" 4000W D4 Subwoofers & QPower Sealed Box
Quantum Audio
On Sale: $499.96Was: $574.95Quantum Audio QWX 12 Package | Dual 12" 4000W D4 Subwoofers & QPower Sealed Box The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass reproduction,...On Sale: $499.96Was: $574.95 -
On Sale
Quantum Audio QWX 12 Package | 12" 4000W D4 Subwoofer & QBomb Kerf Ported Box
Quantum Audio
On Sale: $264.99Was: $359.97Quantum Audio QWX 12 Package | 12" 4000W D4 Subwoofer & QBomb Kerf Ported Box The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass reproduction,...On Sale: $264.99Was: $359.97 -
On Sale
Quantum Audio QWX 12 Package | 12" 4000W D4 Subwoofer & QPower HD Ported Box
Quantum Audio
On Sale: $249.98Was: $314.97Quantum Audio QWX 12 Package | 12" 4000W D4 Subwoofer & QPower HD Ported Box The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass reproduction,...On Sale: $249.98Was: $314.97 -
Quantum Audio QWX 12 Inch 4000W Max DVC 4 Ohm Subwoofers | QWX4000/12D4 (Pair)
Quantum Audio
Price: $499.96Quantum Audio QWX 12 Inch 4000W Max DVC 4 Ohm Subwoofers | QWX4000/12D4 (Pair) The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass reproduction,...Price: $499.96 -
Quantum Audio QWX 12 Inch 4000W Max DVC 4 Ohm Subwoofer | QWX4000/12D4
Quantum Audio
Price: $249.98(1) Quantum Audio QWX 12 Inch 4000W Max DVC 4 Ohm Subwoofer | QWX4000/12D4 The Quantum Audio QWX4000/12D4 is a high-performance 12-inch car subwoofer from the Quantum X Series. It is designed for high power handling and deep bass reproduction, featuring...Price: $249.98