DC AUDIO | LEVEL 4 18 M4 (1500-WATTS-RMS) | D4

Subwoofer Description
The Level 4 m4 is a step forward in SQ and heat dissapation vs the last genaration model (m3). It now comes with a 2.5mm Aluminum Shorting ring (demodulation ring) to help reduce inductance in the motor. This can help with power compression.
It also acts as a internal heatsink by pulling heat from the windings into the aluminum ring and the direct to coil venting cycles air across the coil wingings and aluminum shorting ring at the same time cooling them simultaneously.
Newly tooled Motor boots withthe DC Logo and LV4 logo embossed on them
With fantastic power handling and smashing lows its hard to beat.
The Level 4 sub is a large triple stacked motor with a chrome top plate and T yoke yielding 23.5mm of X-Max.
Furthermore, you get the upgraded triple progressive spiders, cone, surround, 3″ coil, cast basket, push terminals and upgraded lead wire sewn to the spider. This sub is rated at 1500w RMS and 3000w peak.

Key Features
Extremely rigid non-pressed paper cone assembly
Multilayered polymer foam stitched surround
Polypropylene dust cover with DC logo
Triple 8 OD semi cup progressive roll spider
Extra heavy duty interweaved tinsel lead wire sewn to spider
Cast aluminum black frame / no invert mount
FEA analyzed and optimized motor assembly Fully CNC machined
Rubber mounting gasket
Chrome spring loaded push terminals
3 Hi-temp Aluminum voice coil wound on black anodized voice coil former 8 Layer Flat Wound
Rubber magnet cover with DC and Lv4 Logos
5mm Aluminum Shorting ring

M4 Level 4 Subwoofer10″12″

Mounting Depth
6.25″
6.75″

Mounting Hole Diameter
9.35″
11″

Outside Driver Diameter
11″
12.5″

VC Diameter
3.0″
3.0″

Displacement
.16 ft
.18 ft

Power Handling rms/peak
1500/3000
1500/3000

Ohm Options
d1/d2/d4
d1/d2/d4

Sd
324 cm
418 cm

Vas
00.00 L
17.42 L

Cms
0.000 Mm/n
0.058 Mm/n

Mms
000.0 g
232.74 g

Fs
00.0 Hz
43 Hz

Bl
28.49 N/A
28.49 N/A

Re
8.6 Ohm
8.6 Ohm

Le
0.00 mH
5.62 mH

Qms
0.00
7.92

Qes
0.00
0.66

Qts
0.000
0.615

Xmax
23.5mm
23.5mm

Ref SPL @1 watt
84 db
84.94 db

Suggest Sealed Box
.75 ft
1.0 ft

Suggested Ported Box
1.0 ft
1.5 ft

M4 Level 4 Subwoofer15″18″

Mounting Depth
8″
9.5″

Mounting Hole Diameter
14.0″
16.75″

Outside Driver Diameter
15.7″
18.5″

VC Diameter
3.0″
3.0″

Displacement
.21 ft
.26 ft

Power Handling rms/peak
1500/3000
1500/3000

Ohm Options
d1/d2/d4
d1/d2/d4

Sd
823 cm
1217 cm

Vas
00.00 L
000.00 L

Cms
0.000 Mm/n
0.000 Mm/n

Mms
000.0 g
000.0 g

Fs
00.0 Hz
00.0 Hz

Bl
00.0 N/A
00.0 N/A

Re
8.6 Ohm
8.6 Ohm

Le
0.00 mH
0.00 mH

Qms
00.0
00.0

Qes
0.000
0.000

Qts
0.00
0.001

Xmax
23.5mm
23.5mm

Ref SPL @1 watt
00.0 db
00.0 db

Suggest Sealed Box
2.0 ft
3.5 ft

Suggested Ported Box
3.0 ft
5.5 ft