APPLICATION:

 

BASS LOUDSPEAKER 460mm (18")
Bass in PA/MI.

FEATURES: The RV4504 is a unique loudspeaker. It features two cooling systems. In addition to the conventional rear vented magnet it uses the patented, front mounted, Radial chassis which acts as a giant heatsink. This keeps voice coil temperatures exceptionally low resulting in almost 3dB less power compression and tight, clean bass after prolonged operation at maximum power. A rugged voice coil able to accept high power transients coupled with lower operating temperatures means greater reliability and a long working life.

The RV4504 has triple rear suspensions, special rubber surround and a symmetrical field magnet for absolute linearity and transient control on high power peak inputs. Maximum damage limited excursion is 50 mm (2").
Innovative design has produced a breakthrough in performance and reliability.

Volume Litres

Vent dia. cm.

Vent length cm.

System
Q

-3db freq. Hz.

100

4 x 10

31

10

45

150

4 x 10

20

10

40

180

4 x 10

27

10

34

SUGGESTED ENCLOSURES: (Reflex)

Fs

33

Hz

Re

5.5

ohms

Qa

4.26

 

Qe

0.38

 

Qt

0.35

 

Vas

217

litres

Xmax

 +10

mm

Sd

962

cm2

Vd

962

cm3

Le

2.9

mH

THIELE-SMALL PARAMETERS:

On axis response curve representative of a typical production unit

Overall Diameter

459

mm

Mounting Bolt Circle Diameter

440

mm

Number and Size of Bolts

8

M8

Baffle Cutout Diameter

417

mm front mount

Baffle Cutout Diameter

398

mm rear mount

Depth

215

mm below front flange

Depth

229

mm total depth

Weight

17

Kg.

MOUNTING INFORMATION:

SPECIFICATIONS:

 

Nominal Diameter

450

mm

Power Capacity

750

watts

Sensitivity

96

dB/watt/m

Frequency Range

30-600

Hz

Impedance

4/8

ohms

Bl Factor

21

N/A

Voice Coil Diameter

100

mm

Voice Coil Material

4-layer

Copper

Maximum Excursion

50

mm (before damage)

Magnet Assembly Weight

11.5

Kg

Effective Moving Mass

0.142

Kg

Compliance

0.00017

M/N

Volume displaced by unit

13

litres

Connection

  

Metal push terminals

Chassis

RADIAL

Painted Diecast Aluminium

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