SB Acoustics 4 SB12MNRX25-4 Midrange buy at hifisound.de

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SB Acoustics 4 SB12MNRX25-4 Midrange

Key features

Proprietary cone material with natural fibres made in-house
Shortened voice coil optimized for pure midrange reproduction
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

Short data

Usage as	Midrange
Power Handling	50 Watt
Impedance	4 Ohm

Frequency from	150 Hz
Max. Frequency	10 kHz
Sound pressure	88.5 dB

Chassis-data

Overall dimensions	123 mm
Baffle cutout	98.2 mm
Depth (Total)	79.1 mm

Voice coil Ø	25.4 mm
Voice coil height	9.5 mm
Air gap height	5 mm
Magnet Ø	70 mm
Magnet-weight	40 g

Thiele-Small-Parameter

Resonance fs	fs: 58 Hz
Mechanical Q	Qms: 3.6
Electrical Q	Qes: 0.42
Total Q	Qts: 0.37
Equivalent Air-Volumen	Vas: 5.5 Liter
DC-Resistance	Re: 3.2 Ohm
Coil Inductance	Le: 0.14 mH

Mech. Compliance	Cms: 1.55 mm/N
Moving Mass	Mms: 4.9 g
mech. Resistance	Rms: 0.5 kg/s-¹
Max. Excursion +/-	Xmax: 4.5 mm
BL Product	Bl: 3.7 N/A
Membrane Area	Sd: 50 cm²
Sound pressure	dB: 88.5 SPL

Frequency & Impedance

Technical Dimensions

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