Volt RV4564 Radial Bass Diameter:459mm

 18" Doped Carbon Fibre Cone Bass

The RV4564 bass unit is optimised for accurate bass reproduction. It has a massive Xmax, a symmetrical field magnet and extended centre pole for linear excursions up to 25mm peak to peak with accuracy and control. The critically doped carbon fibre loaded cone maintains rigidity for transient punch and slam. It features three cooling systems: a vented magnet, the patented Radial chassis and a multi-finned magnet intercooler. This technology keeps voice coil temperatures exceptionally low and substantially reduces power compression to maintain the full dynamic range even after prolonged operation. Additionally the stability of the Thiele-Small parameters resulting from cooler operation preserves system bass performance at high levels. The RV4564 is intended for use in high power professional studio monitors and sub bass systems.

Technical Data:

Frame diameter:    459mm

Sensitivity (2.83v/1m):   93dB

Nominal impedance:   8ohm

Frequency range:   25Hz - 500Hz

Free air resonance:   26Hz

DC resistance (Re):   5.8 ohm

Voice coil inductance (Le):   3.8mH

Effective piston area (Sd):   1029 cm²

Moving Mass (Md):   235g

Force factor (BL):   25.7Tm

Excursion (lin-max):   44mm

Qa:   3.94

Qe:   0.34

Qt:   0.31

Vas:   238L

Voice coil diameter:   100mm

Nominal power handling:   750w

Physical Sizes:

Frame diameter:   459mm

Overall depth (front of frame to rear of magnet):   229mm

Flange thickness:   14mm

Fixing holes:  8 x 9mm diameter on 440mm PCD

Cutout diameter:   417mm

Please note that Volt units are made to order - Delivery 8-10 weeks 
Price per single unit excluding VAT