6G40Nd

     G 4 0   S e r i e s

MOUNTING INFORMATION

TECHNICAL SPECIFICATIONS

DIMENSION DRAWINGS

MATERIALS

Nominal diameter

Rated impedance

Minimum impedance

Power capacity *

Program power

Sensitivity

Frequency range

Recom. enclosure vol.

Voice coil diameter

Magnetic assembly weight

BL factor

Moving mass

Voice coil length

Air gap height

X damage (peak to peak)

165 mm. 6.5 in.

8 ohms.

7 ohms.

170 w AES

340 w

95 dB  2.83v @ 1m @ 2

p

70 - 9000 Hz

10 / 30 l  0.35 / 1.06 ft.

3

51.7 mm. 2 in.

1.5 kg. 3.3 lb.

11 N / A

0.012 kg.

9 mm.

7 mm.

20 mm.

Overall diameter

Bolt circle diameter

Baffle cutout diameter:

- Front mount

- Rear mount

Depth

Volume displaced by driver

Net weight

Shipping weight

187.5 mm.     7.38 in.

172 mm.     6.77 in.

146 mm.     5.74 in.

146 mm.     5.74 in.

75.5 mm.     2.97 in.

0.5 l   0.019 ft.

3

1.7 kg.    3.74 lb.

2.3 kg.    5.06 lb.

Resonant frequency, fs

D.C. Voice coil resistance, Re

Mechanical Quality Factor, Qms

Electrical Quality Factor, Qes

Total Quality Factor, Qts

Equivalent Air Volume to Cms, Vas

Mechanical Compliance, Cms

Mechanical Resistance, Rms

Efficiency, 

hhhhh

o (%)

Effective Surface Area, Sd (m

2

)

Maximum Displacement, Xmax

Displacement Volume, Vd

Voice Coil Inductance, Le @ 1 kHz

88 Hz

6.2 ohms.

9.1

0.34

0.33

7.2 l

260 

mmmmm

m / N

0.76 kg / s

1.4

0.0140 m

2

1 mm.

14 cm

3

0.6 mH

•

Voice coil:

 aluminium wire with high temperature

bonding strength. Polyimide fiber glass former able

to withstand high temperatures.

•

Cone:

 light and stiff paper cone.

•

Surround: 

treated cloth to assure good retaining of

elasticity in despite of continuing use.

•

Spider:

 treated cotton fibres.

•

Metal parts:

 anti-corrosion coating to resist

aggressive environmental conditions.

•

Basket:

 specially designed die cast aluminium

       basket to reduce the distance between transducers.

•

Magnet:

 high energy neodymium magnet.

6G40Nd

 .

Polígono Industrial Moncada II 

·

 C/. Pont Sec, 1c 

·

 46113 MONCADA - Valencia (Spain)

·

 Tel. ( 34 ) 96 130 13 75 

·

 Fax ( 34 ) 96 130 15 07 

·

 http://www.beyma.com 

·

 E-mail: beyma@beyma.com 

·

Notes:

*The power capacity is determined according to AES2-1984 (r2003) standard.

Program power is defined as the transducer’s ability to handle normal music program material.

**T-S parameters are measured after an exercise period using a preconditioning power test.

The measurements are carried out with a velocity-current laser transducer and will reflect the long

term parameters (once the loudspeaker has been working for a short period of time).

THIELE-SMALL PARAMETERS **