W-series

W400A-HR

Features

Hi-rigid and reduced inherent resonance HR diaphragm is employed. By using the radial pa- permaking technique and whizzy hybrid ma- terials, HR diaphragm realizes low distortion, high durability, large internal-loss and fast propagation speed like a metal diaphragm. This unique-shaped diaphragm offers smooth fre- quency response and superior low frequency reproduction that the conventional cone dia- phragm has never achieved.

Newly developed zincky die-cast frame based on the strength analysis by the fine- element method.

Stronger magnetic circuit using 3,100g alnico magnet is equipped for higher input durability and larger amplitude driving.

Oval mounting hole can be adjusted between ø370 - ø375mm. W400A-HR has the com- patibility with not only FOSTEX old 15” drivers but some famous woofers’ replacements.

UDR tangential surround & spider are equipped to realize the less anti-resonance and superior amplitude characteristic.

Specifications

&

Thiele/Small Parameters

Size

:

395

mm /

15 in

Voice Coil Diameter

 

 

 

 

:

100

mm /

3.9 in

 

 

 

 

Cast / Stamped

:

Cast

 

 

 

 

 

 

Impedance

:

8

 

Reproduction Frequency Response :fs - 2.5 kHz

Sound Pressure Level

 

:

94

dB/W(m)

 

Rated Input

:

67

W

 

 

Music Power

:

200W

 

 

 

 

 

 

 

Magnet Material

:

Alnico

 

 

Magnet Weight

:

3,100

g /

6.83

lb

 

 

 

 

 

 

Net Weight

 

21,400

g /

47.18

lb

 

 

 

 

 

 

 

 

 

 

 

 

a :

161.3 mm

 

 

Sd :

0.082 m2

 

 

Zn :

8

 

 

Fs :

25

Hz

 

 

Re :

6

 

 

Le :

2.64 mH

 

 

Qms :

8.2

 

 

 

Qes :

0.32

 

 

 

Qts :

0.31

 

 

 

Mms :

130 g

 

 

 

 

 

 

BL :

19.5

Telsa/m

 

Vas :

310

L

 

 

Xmax :

5.5 mm

 

 

Eff/η0 :

1.4

%

 

 

Cms :

0.33 mm/N

 

EBP :

78.1

 

 

 

Frequency Response / Impedance

dB

110

100

90

80

70

 

 

60

 

 

50

 

 

64

 

 

40

 

32

 

 

 

 

16

30

 

8

20

 

 

10 20 Hz 50 100 200 500 1K 2K

5K 10K

20K

Dimensions & Mounting Information

 

ø395

 

 

8-9.5 X 7

 

18

 

 

 

 

115

 

 

242

 

 

109

ø194

 

 

ø350

 

 

Overall Diameter

:

395

mm /

15

in

Baffle Hole Diameter

 

 

 

 

 

:

350

mm /

13

in

Depth

:

242

mm /

9.5

in

 

 

 

 

 

 

Page 1
Image 1
Fostex W Series dimensions W400A-HR, Features, Specifications Thiele/Small Parameters, Frequency Response / Impedance