Name: SB12NRX25-8 Bass-midwoofer
Brand: SB Acoustics
SKU: 70248959
Availability: InStock

SB12NRX25-8 Bass-midwoofer

€61.95

Proprietary cone material with natural fibres made in-house

High damping Butyl rubber surround for non-resonant sound character

Vented pole piece for reduced compression

Vented cast aluminium chassis for optimum strength and low compression

CCAW voice coil for reduced moving mass

Long life silver lead wires

Non-conducting fibre glass coil former for minimum damping

Highlights

Proprietary cone material with natural fibres made in-house
High damping Butyl rubber surround for non-resonant sound character
Vented pole piece for reduced compression
Vented cast aluminium chassis for optimum strength and low compression
CCAW voice coil for reduced moving mass
Long life silver lead wires
Non-conducting fibre glass coil former for minimum damping

Product details

SB Acoustics SB12NRX25-8 4” Midrange Woofer

The SB Acoustics SB12NRX25-8 4″ Midwoofer is an excellent SB Acoustics Ferrite magnet midrange/midwoofer, featuring a high efficiency low damping rubber surround. Fitted with a proprietary composition paper cone, 1″ voice coil. Very open cast frame for minimal reflections. Fs 55Hz, good level extended response up to 5KHz.

Specifications

Article number

SB12NRX25-8

EAN

0696277269006

Woofer Series

SB Acoustics NRX Norex series

Woofer Type

Midwoofer

Nominal Diameter

4″

Power Handling (RMS)

30 Watts

Impedance (Z)

8 ohms

Sensitivity (SPL at 1m / 2.83V)

85.5 dB

Voice Coil Diameter

1″

DC Resistance (Re)

6.4 ohms

Voice Coil Inductance (Le)

0.34 mH

Resonant Frequency (Fs)

57 Hz

Mechanical Q (Qms)

4.1

Electromagnetic Q (Qes)

0.41

Total Q (Qts)

0.37

Diaphragm Mass Inc. Airload (Mms)

5.2 g

Mechanical Compliance of Suspension (Cms)

1.49 mm/N

Surface Area of Cone (Sd)

50 cm2

BL Product (BL)

5.4 Tm

Compliance Equivalent Volume (Vas)

0.18 ft.³

Maximum Linear Excursion (Xmax)

5 mm