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Model: HDB2-10D2 Sold as: Each
SoundQubed 10" HDB2 Series Sub, D2, 400w/800w
The SoundQubed HDB2-10-D2 is a precision-engineered 10” subwoofer designed for high-output bass with tight response and long-term durability. With dual 2-ohm voice coils and a 400W RMS / 800W peak power rating, this sub delivers hard-hitting lows in both sealed and ported enclosures. Its 87dB sensitivity and 25Hz–300Hz frequency response make it ideal for deep, musical bass across a variety of genres. Built with a conical paper cone, PPI dust cap, and a spider-crossed lead connection, it’s housed in a rugged steel basket with a black finish. Perfect for car audio builds that demand clean, accurate low end with reliable performance.
General Specifications:
Nominal Diameter: 10" / 254mm
Nominal Impedance: 2+2 Ohms
RMS Power Handling: 400W
MAX Power Handling: 800W
Sensitivity (1w/1m): 87dB
Frequency Response: 25-300 Hz
Recommended Low-Pass Crossover: 120 Hz
Features:
Improved Heat Dissipation
Cone Shape: Conical
Speaker Terminals: Push 8Ga
Motor
Voice Coil Diameter: 2" / 50.8mm
VC Former Material: Black Aluminum
Winding Material: SV
Cone Material: Paper
Dust Cap Material: PPI
Surround Material: Foam
Leads Connection Type: Spider Crossed
Magnet Material: Ferrite
Magnet Weight: 68 oz
Basket Material: Steel
Basket Color/Finish: Black
Thiele & Small Parameters:
Equivalent Volume (Vas): 15.5L / 0.54ft³
Excursion (one way) (Xmax): 7.75mm
Free Air Resonance (Fs): 42 Hz
Mechanical Factor (Qms): 2.533
Electrical Factor (Qes): 0.553
Total Factor (Qts): 0.454
Mechanical Mass (Mms): 144.66g
Mechanical Compliance (Cms): 0.10 mm/N
BL Factor (BL): 16.567
Voice Coil Inductance (Le): 7.1 mH
Cone Area (Sd): 330.06 cm²
DC Resistance (Re): 2 + 2 Ohms
Efficiency Bandwidth Product (EBP): 75.9
Measurements:
Overall Diameter: 10.6" / 270mm
Overall Depth: 6.4" / 162.4mm
Front Mount Baffle Cutout: 9.2" / 234mm
Mounting Depth: 5.4" / 137mm
Motor Diameter: 6.14" / 156mm
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