Alnico Magnet-series

Features 400mm (16in) cone type woofer 118mm/3.1kg larger alnico manget Fine-ceramics multi-coated cone fo to 2.5kHz frequency response

W400AII

Specifications & Thiele/Small Parameters
400 mm / 16 Size : Voice Coil Diameter 100 mm / 2.5 : Cast Cast / Stamped : 8 Impedance : Reproduction Frequency Response 2.5 kHz :fs Sound Pressure Level 97 dB/W(m) : 75 W Rated Input : 200 W Music Power : Alnico Magnet Material : Magnet Weight (main) : 3,100 g / 6.834 (cancel) : n/a g / n/a 15,200 g / 33.51 Net Weight in in
Frequency Response / Impedance

lb lb lb

a: D: Sd : Zn : Fs : Re : Le : Qms : Qes : Qts : Mms : BL : Vas : Xmax : Eff/0 : Cms : EBP :
0.25 6.8 0.13 14.94 0.32 0.32 134.50 21.19 312.30 7.0 1.46 0.028 78

mm mm m2 Hz mH

Dimensions & Mounting Information

395 R187.184

8-7 hole

g Telsa/m L mm % mm/N

Overall Diameter : Baffle Hole Diameter : Depth :

mm / 14 in mm / 7.5 in

RECOMMENDED ENCLOSURES
Recommended Bass Reflex Type Enclosure

598 450

Terminal

unit : mm, 24mm thick

Internal volume : 150 liter, fb=27Hz

Sound absorbent

W400AII + D1400 + H300 + T500A 3-way system
2.2mH (LS2.2) 6.8F 1.0mH (LS1.0) 0.21mH 15F (CT15) R100T 2 3.3F (CS3.3) R100T 1 T500A
2.2mH (LS2.2) 6.8F (CT6.8) 15F (CT15) R100T 2 3.3F (CS3.3) R100T 1 T900A

D1400 + H300

1mH (LS1.0)

0.18mH (L0.18)

D1400 + H400
This is an expample for 3-way system consists in W400AII, Dhorn driver with H300 radial horn and T500A super tweeter. Its crossover frequencies are 800Hz and 6kHz. Enclosure (above fig.) is bass reflex type with 150 liters internal volume.
This is an another 3-way example switching the horn to H400 and super tweeter to T900A. Networks basic design is the same but crossover frequency between super tweeter and midrange is changed to 7kHz.

1142 553

Internal volume : 300 liter, fb=28Hz Two-ply baffle, Make windows (300 x 175) on partation board.