Sundown Audio - X-Series v.4 15”

Sundown Audio - X-Series v.4 15”The Sundown Audio XV4 15 Subwoofer delivers the ultimate low frequency experience for serious bass lovers. Built with the advanced X v. 4 coil design, this subwoofer offers extreme power handling and consistent performance under heavy loads. With up to 3000W RMS and 6000W peak power, it ensures clean, distortion free sound even at the highest volumes. The durable motor structure and optimized cone area (72. 58 in) provide deeper lows and better air

• The Sundown Audio XV4 15″ Subwoofer delivers the ultimate low-frequency experience for serious bass lovers. Built with the advanced X v.4 coil design, this subwoofer offers extreme power handling and consistent performance under heavy loads.
• With up to 3000W RMS and 6000W peak power, it ensures clean, distortion-free sound even at the highest volumes. The durable motor structure and optimized cone area (72.58 in²) provide deeper lows and better air displacement for maximum sound pressure.
• Engineered for flexibility, the XV4 15″ works best in ported enclosures (4.25 cu ft, tuned to 32 Hz) but can also be customized for complex box designs like 4th order setups. Every element — from the high-grade magnet to the precision voice coil — is crafted to deliver unmatched performance and reliability.
• Perfect for audiophiles and competitors seeking solid bass impact, this subwoofer combines engineering excellence and raw power in one package.

• 15″ high-performance subwoofer with X v.4 coils

• 3000W RMS / 6000W peak power handling

• 35mm Xmax for strong linear excursion

• Optimized motor design (9.25″ diameter)

• Recommended ported box: 4.25 cu ft @ 32 Hz

• Robust cone design for high SPL output

• Ideal for competitive and high-end car audio systems

  Parameter	XV4 15D1	XV4 15D2
  RMS Power	3000W	3000W
  Peak Power	6000W	6000W
  Displacement	0.26 cu.ft.	0.26 cu.ft.
  Mounting Depth	12.95″	12.95″
  Outside Diameter	15.51″	15.51″
  Cutout Diameter	13.93″	13.93″
  Motor Diameter	9.25″	9.25″
  Sealed Enclosure	Not Recommended	Not Recommended
  Ported Enclosure	4.25 cu ft	4.25 cu ft
  Recommended Port Tuning	32 Hz	32 Hz
  Recommended Port Area	68 sq in	68 sq in
  4th Order Sealed Side	2.0 cu ft	2.0 cu ft
  4th Order Ported Side	6.0 cu ft	6.0 cu ft
  4th Order Port Area	120 sq in	120 sq in
  4th Order Port Length	8″	8″
  Xmax	35mm	35mm
  SD (Cone Area)	72.58 in²	72.58 in²
  RE (Ohms)	3.2	3.74
  FS (Hz)	29.91	29.51
  Qes	0.55	0.49
  Qms	4.87	4.08
  Qts	0.49	0.44
  BL (NA)	22.32	27.44
  Mms (g)	457.51	538.24
  CMS	61.87	54.02
  Sensitivity	85.29 dB	85.1 dB

  T/S Specs
  RMS Power (D2)	3000
  RMS Power (D1)	3000
  Peak Power (D1)	6000
  Peak Power (D2)	6000
  RE D1 (Ohms)	3.2
  RE D2 (Ohms)	3.74
  FS D1 (Hz)	29.91
  FS D2 (Hz)	29.51
  VAS D1 (L)	31.43
  VAS D2 (L)	40.41
  Qes D1	0.55
  Qes D2	0.49
  Qms D1	4.87
  Qms D2	4.08
  Qts D1	0.49
  Qts D2	0.44
  Le D1 (mH)	2.57
  BL D1 (NA)	22.32
  BL D2 (NA)	27.44
  Mms D1 (Grams)	457.51
  Mms D2 (Grams)	538.24
  Cms D1 (uM/N)	61.87
  Cms D2 (uM/N)	54.02
  Sens D1 (dB @ 1w/1m)	85.29
  Sens D2 (dB @ 1w/1m)	85.1
  Xmax D1	35mm
  Xmax D2	35mm
  Subwoofer Measurements
  Displacement (Inches)	0.26cu.ft.
  Depth (Inches)	12.95"
  Cutout (Inches)	13.93"
  Motor Diameter (Inches)	9.25"
  Ported Enclosure Specs
  Ported Enclosure Size	4.25 cu ft
  Recommended Port Area	68 sq in
  Recommended Port Tuning	32
  4th Order Enclosure Specs
  4th Order Sealed Side	2.0cu ft
  4th Order Ported Side	6.0cu ft
  4th Order Port Area	120sq in
  4th Order Port Length	8"