Product Overview
About: Sundown Audio X-6.5 v.2 X-Series 6.5" 400W RMS Subwoofer - SVC 4 Ohm
Designed with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.2 is engineered for ultra-deep bass and high power handling. Engineered to set a new standard in the low-frequency/small-ported-box subwoofer category, the X Series can also work in up to a 50% larger enclosure if you desire even more low-end extension.
The X v.2 series differentiates itself with its incredibly linear suspension, ensuring the lowest level of bass extension in a small enclosure while maintaining extremely low levels of distortion. Notably, the v.2 series features a much larger motor structure (220mm vs. 190mm on the V.1 series), improved motor ventilation, and an all-new Mega-Roll v.2 surround, providing a more linear and rugged update to the world-famous Mega-Roll v.1 surround design.
Specifications:
- RMS 400 watts
- 4 ohm voice coil
- Made for extremely deep bass
- Triple-stacked magnet
- 2.25” voice coil
- Hyper-extended pole
- Vented top plate
Thiele/Small Parameters:
- Dc Resistance (Re): 2.9 Ohms
- Free Air Resonance (Fs): 55.778 Hz
- Equivalent Volume (Vas): 1.657 L
- Electrical Factor (Qes): 0.619
- Mechanical Factor (Qms): 9.255
- Total Factor (Qts): 0.581
- Bl Factor (BL): 11.702
- Mechanical Mass (Mms): 83.452 g
- Mechanical Compliance (Cms): 97.561 uM/N
- Sensitivity (dB @ 1w/1m): 78.5 dB
- Xmax: 16 mm
Enclosure Specifications:
- Sealed Enclosure: 0.15 cu. ft.
- Ported Enclosure: 0.25 cu ft – 0.4 cu. ft. NET
- Recommended Tuning: 35 -45 hz
- Recommended Port Area: 3.5-6 sq in
- Displacement: 0.03 cu ft
