SB Acoustics SB12MNRX2-25-4 Bass-midwoofer

SB ACOUSTICS | Bass mid-bass subwoofer

SB Acoustics SB12MNRX2-25-4 Bass-midwoofer

Name: SB Acoustics Acoustics mélysugárzó 4" | HQ AudioParts
Brand: SB Acoustics
SKU: SB12MNRX2-25-4
Price: 22990.00 HUF
Availability: LimitedAvailability

SKU: SB12MNRX2-25-4

101.6 mm 4 Ω

Achieve clear and detailed midrange reproduction in your audio projects with this 4-inch driver from SB Acoustics. Its copper-clad aluminium wire voice coil and low 0.27 total Q factor ensure controlled, accurate performance. The maximum linear excursion (Xmax) is 4.4 mm.

22 990 Ft

(18 102 Ft + VAT)

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Technical data

Nominal diameter	101.6 mm
Impedance	4 Ω
Resonance frequency (Fs)	58 Hz
Shielded	Cross stitch
Sensitivity (SPL at 1 m / 2.83 V)	91 dB

Maximum linear deflection (Xmax)	4.4 mm
Total Q (Qts)	0.27
Electromagnetic Q (Qes)	0.29
Mechanical Q (Qms)	3.6
DC resistance (Re)	3.2 Ω
Voice coil inductance (L_e)	0.15 mH
BL product (BL)	4.1 T·m
The surface area of the cone (Sd)	50 cm²
Mechanical compliance of the suspension (Cms)	1.77 mm/N
Drive mechanical losses (RMS)	0.4 kg/s
Woofer type	DL200 Audio DAC
Surround material	Rubber
Voice coil diameter	25.4 mm
Dual voice coil	Cross stitch
Voice coil wire material	Copper-clad aluminum wire (CCAW)
Weight of a magnet	4 g
Basket / frame material	Aluminum
Subwoofer Series	SB Acoustics NRX Norex Series
Dimensions (mm)	123 mm
# Mounting holes	4
Diameter of the access opening	4.3 mm
Depth	70.1 mm

The SB12MNRX2-25-4 4" Midrange Woofer from SB Acoustics is a precision-engineered driver designed to deliver exceptional clarity and detail in the critical midrange frequencies. As part of the respected NRX2 series, this 4-inch woofer combines advanced materials with meticulous construction to offer audiophile-grade performance for discerning listeners and system builders alike.

This versatile driver excels in a variety of applications, including high-fidelity two-way and three-way loudspeaker designs, as well as compact subwoofer systems where accurate mid-bass reproduction is essential. Its controlled response makes it particularly suitable for near-field monitoring, home theatre setups, and custom automotive audio installations where space is at a premium but sound quality cannot be compromised.

Technically, the SB12MNRX2-25-4 features a copper-clad aluminium wire (CCAW) voice coil, which reduces moving mass while improving thermal handling and transient response. With a total Q factor (Qts) of just 0.27, this driver offers excellent damping and tight, controlled bass performance. The 91 dB sensitivity ensures efficient power usage, while the 4.4 mm linear excursion (Xmax) allows for dynamic output without distortion. A low voice coil inductance of 0.15 mH further enhances high-frequency extension and clarity.

In summary, the SB12MNRX2-25-4 is a superb choice for anyone seeking a high-quality midrange woofer that combines technical sophistication with practical versatility, delivering accurate and engaging sound across a wide range of audio projects.