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APPLICATION:

• Ideal for sealed or vented two-way and multi-way high quality audio designs. Example: studio monitors or hi-fi products.

8FHM

SPECS PDF

DRAWING PDF

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FERRITE MID-WOOFER

Ordering code: 8FHM-091

CONT. POWER

SENS.

Fs

Freq. Range

VC Dia.

 IN-OUT WOUND

VC Wire

Cone /

Surround

Magnet

Type

200 WATTS

91 dB

45 Hz

30-

5,000 Hz

1.4"

OUTSIDE

CCAW

Carbon F. Honeycomb

RUBBER

FERRITE

     The 8FHM is a high efficiency, (91 dB 1watt / 1 meter) 8-inch mid-woofer with incredibly linear frequency response characteristics and ultra low harmonic distortion artifacts. The 8FHM uses a lightweight 1k carbon fiber material, assembled from both sides of Nomex honey-comb core. This unique cone provides the ideal weight to strength ratio. The rubber surround has been FEM modeled and optimized. The honeycomb cone with high end 1k carbon fiber material provides remarkable strength, while pushing the cone break-up modes to high frequencies, significantly extending the working range of the speaker.

 

The cone

The 8FHM cone is made using 1k carbon fiber hone-comb, placed from both sides of Nomex core, while the dustcap is made off hard-anodization reinforced aluminum. The dustcap shape and the hard anodizing are further improving the high frequency behavior.

 

 

 

 

GENERAL SPECIFICATIONS:

Nominal Diameter

200 mm (8 in.)

Rated Impedance

4 ohm

Power Handling

 

AES Power

100 watts

PROGRAM Power

200 watts

PEAK Power

350 watts

Power Compression

 

@ -10dB

0.5 dB

@ 0dB

1.0 dB

@ Max. Power

1.8  dB

Max. Recommended X-OVER Freq.

4,000 Hz

Recommended Enclosure Volume

10 - 50 Liters

Cone Design / Cone Material

Exp. Gmtry, 1k CF Honeycomb

Voice Coil Diameter / Winding

1.4"

Voice coil Winding Height

18.0 mm

Front Plate Thickness

8 mm

T/S Parameters:

 

Fs

45 Hz

Re

3.6 Ohm

Sd

213.8 cm2 (33.14 in.2)

Qms

15.2

Qes

0.4

Qts

0.39

Vas

37 Liters

Mms

24.6 g

Bl product (Force Factor)

8 Tm

Peak To Peak Displacement

18 mm

Le (mH @ 1kHz)

0.43

Mechanical Parameters:

 

Overall Diameter

223.5 mm (8.8 in.)

No. Of Mounting Holes

6

Bolt Circle Diameter

197 mm (7.76 in.)

Front Mount Baffle cutout

180 mm (7.1 in.) Nominal

Rear Mount Baffle cutout

180 mm (7.1 in.) Nominal

Total Depth

100.5 mm (3.96 in.)

Flange and gasket thickness

2 mm ( 0.02 in.)

Packaging info:

 

Net Weight

2.8 kg (6.17 lbs.)

Shipping Weight

3.2 kg (7.1 lbs.)

Packaging Dimensions

220x220x120mm (8.7x8.7x4.7 in.)

 

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