Superior Systems & Installations1,Inc.

Description

Description

Subwoofer Description

The Level 4 m4 is a step forward in SQ and heat dissipation vs the last generation 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 heat sink by pulling heat from the windings into the aluminum ring and the direct to coil venting cycles air across the coil winnings and aluminum shorting ring at the same time cooling them simultaneously.

Newly tooled Motor boots with the 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 inter weaved 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

2.5mm Aluminum Shorting ring

T/S Parameters

Level 4 Subwoofer 15″ 18″
Mounting Depth 8″ 9″
Mounting Hole Diameter 14.0″ 16.75″
Outside Driver Diameter 15.7″ 18.5″
VC Diameter 3.0″ 3.0″
Displacement .21 ft³ .26 ft³
Power Handling rms/peak 1500/3000 1500/3000
Ohm Options d1/d2/d4 d1/d2/d4
Sd 791 cm² 1178 cm²
Vas 43.01 L 89.03 L
Cms 48.30 Um/n 45.13 Um/n
Mms 363.42 g 484.52 g
Fs 37.98 Hz 34.03 Hz
Bl 19.72 N/A 19.80 N/A
Re 4.11 Ohm 3.95 Ohm
Le 2.52 mH 2.68 mH
Qms 10.88 9.00
Qes 0.917 1.044
Qts 0.846 0.936
Xmax 23.5mm 23.5mm
Ref SPL @1 watt 85.84 db 87.01 db
Suggest Sealed Box 2.0 ft³ 3.5 ft³
Suggested Ported Box 3.0 ft³ 5.5 ft³