MOUNTING INFORMATION:

Overall Diameter

285

mm

Mounting Bolt Circle Diameter

268

mm

Number and Size of Bolts

4

M5

Baffle Cutout Diameter

253

mm front mount

Baffle Cutout Diameter

245

mm rear mount

Depth

109

mm below front flange

Depth

121

mm total depth

Weight

8.65

Kg.

On axis response curve representative of a typical production unit

THIELE-SMALL PARAMETERS:

Fs

25

Hz

Re

5.9

ohms

Qa

1.4

 

Qe

0.25

 

Qt

0.21

 

Vas

51

litres

Xmax

5.5

mm

Sd

299

cm2

Vd

164

cm3

Le

0.8

mH

SUGGESTED ENCLOSURES: (Reflex)

APPLICATION:

 

BASS LOUDSPEAKER 250mm (10")
Bass in Studio Monitors

FEATURES: The B2500.1 is the ultimate 250 mm high power studio bass driver. It uses a massive magnet with symmetrical magnetic field and extended pole for maximum linearity. Matched dual rear suspensions ensure stability at high power levels. The cone is exceptionally rigid ensuring true piston integrity.                           This unit is intended for state of the art studio systems where dynamic range and analytical clarity are essential.

SPECIFICATIONS:

 

Nominal Diameter

250

mm

Power Capacity

250

watts

Sensitivity

90

dB/watt/m

Frequency Range

25-1000

Hz

Impedance

8/16

ohms

Bl Factor

20.3

N/A

Voice Coil Diameter

75

mm

Voice Coil Material

 

Copper

Maximum Excursion

25

mm (before damage)

Magnet Assembly Weight

8.1

Kg

Effective Moving Mass

0.11

Kg

Compliance

0.00037

M/N

Volume displaced by unit

2

litres

Connection

  

Metal push terminals

Chassis

 

Painted diecast aluminium

Volume Litres

Vent dia. cm.

Vent length cm.

System
Q

-3db freq. Hz.

20

7.5

27

5

45

50

7.5

16

3

40

70

7.5

11

3

35

We reserve the right to amend specification without prior notice.
Made in England by Volt Loudspeakers Ltd.