• Unparalleled LF performance
• Useable Output to 25hz
• Extreme Powerhandling
Suitable for any application where extreme low frequency extension
and output is required.
Unleash the ultimate in low-frequency performance with The BattleAxe, HSD Sound Systems’ flagship 21-inch front-loaded horn. Engineered for extreme low-end power and precision, this subwoofer delivers unparalleled intensity with a useable output down to 25Hz. Its optimized passband of 28Hz–100Hz ensures deep bass reproduction that resonates both audibly and physically.
The BattleAxe is designed for large-scale setups, achieving peak sensitivity in clusters of eight while delivering stunning performance even as a standalone unit. Constructed with precision CNC-machined 18mm Baltic birch and reinforced with a 30mm baffle, this cabinet is built for rugged reliability and superior sound fidelity. Optional 16-gauge powder-coated steel grilles and custom Polane coatings ensure durability and style.
System Alignment: 21 Inch loaded Front Loaded Horn
System Response (-10db): 22hz
Frequency Response (-3db): 28hz-150hz
Power Rating (Continuous Program Peak): 1700w/3400w/7000w
Sensitivity (Iw/I meter): 107db
Nominal Impedance: 4ohm or 8ohm Available
Reccomended Processing: 4 Ohm 25hz, 24 db/octave Buttersworth Hi-pass, 60-100hz Low-pass
Enclosure Construction: Precision CNC construction, 18mm Baltic birch 30mm baffle
Exterior Coatings: Polane (Custom Colors Available)
Grille Specifications: Optional 16 Gauge Black Powder-coated Steel
Dimensions (DxHxW): 52.5x50x25.5 inches
Net Weight: 340lbs
Mobility: Available with OPTIONAL 2″ Locking swivel casters or custom dollies