The SB-4000 subwoofer’s sophisticated DSP amplifier, innovative driver, and a sealed box design master room gain and command a space with deeper bass and higher output levels than what is typically possible from a subwoofer of its size. An ideal option for reference quality bass in audiophile music or home theater systems, the SB-4000 sets all performance benchmarks for a subwoofer and leaves larger and more expensive subs trembling in its wake.

Unparalleled Low-Frequency Depth, Power and Detail

High-Excursion SVS Driver – Legendary SVS Output and Control

Sledge Amplifier – Massive Output, Sophisticated DSP, Advanced Power Management

High Current Output of Fully Discrete MOSFETs with Efficiency of Class D Amplifier

Sophisticated 50Mhz High-Resolution Analog Devices Audio DSP

Active Power Factor Correction (PFC) & Ground Loop Isolation

SB-4000 Smartphone App – Easiest Way Ever to Manage Subwoofer DSP and Control

Connects via Bluetooth for convenient control even when the subwoofer is out of sight.

Acoustically Inert and Rigidly Braced Sealed Box Cabinet Design