Sundown Audio M-Series M18 2000W Subwoofer

• 2000 Watts RMS / 4000 Watts Peak
• Available in Dual 1 and Dual 2 Ohm Configurations
• Mega Roll Surround and Frame
• Etched All Black Backplate
• Quad Stack Magnet Structure

Parameter
D1 Model
D2 Model

Re
2.12 Ω
4.12 Ω

Fs
26.2 Hz
25.7 Hz

Qms
5.4520
5.3790

Qes
0.7820
0.7400

Qts
0.6840
0.6500

Vas
112.182 L
117.530 L

Mms
651.24 g
638.99 g

Cms
0.06 mm/N
0.06 mm/N

BL
17.044 T·m
24.026 T·m

Le
1.80 mH
3.55 mH

Sd
1641.9 cm²
1641.9 cm²

Xmax
35mm
35mm

Xmech
59.5mm
59.5mm

SPL (1W/1m)
85.8 dB
86.1 dB

Specification
D1 Model
D2 Model

RMS Power
2000 W
2000 W

Peak Power
4000 W
4000 W

Displacement
0.25cu.ft.
0.25cu.ft.

Mounting Depth
14.05″
14.05″

Outside Diameter
18.46″
18.46″

Cutout Diameter
16.68″
16.68″

Motor Diameter
7.87″
7.87″

Sealed Enclosure
5-6 CU FT
5-6 CU FT

Ported Enclosure
7.0cu ft
7.0cu ft

Recommended Port Tuning
32
32

Recommended Port Area
112sq in
112sq in

Xmax
35mm
35mm

Xmech
59.5mm
59.5mm

4th Order Sealed
3.0cu ft
3.0cu ft

4th Order Ported
9.0cu ft
9.0cu ft

4th Order Port Area
180sq in
180sq in

4th Order Port Length
8″
8″