SB ACOUSTICS | Bass mid-bass subwoofer

SB Acoustics SB23CACS45-4 Woofer

Name: SB Acoustics Acoustics mélysugárzó | HQ AudioParts
Brand: SB Acoustics
SKU: SB23CACS45-4
Price: 56990.00 HUF
Availability: LimitedAvailability

SKU: SB23CACS45-4

234 mm 4 Ω

Achieve deep, controlled bass in your audio system with this high-excursion woofer from SB Acoustics. Its low 0.33 total Q factor ensures tight, accurate response in sealed enclosures. The driver offers a maximum linear excursion (Xmax) of 6.5 mm.

56 990 Ft

(44 874 Ft + VAT)

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Technical data

Nominal diameter	234 mm
Impedance	4 Ω
Resonance frequency (Fs)	23 Hz
Sensitivity (SPL at 1 m / 2.83 V)	90 dB
Maximum linear deflection (Xmax)	6.5 mm

Total Q (Qts)	0.33
Electromagnetic Q (Qes)	0.35
Mechanical Q (Qms)	6
DC resistance (Re)	3.3 Ω
Voice coil inductance (L_e)	0.27 mH
BL product (BL)	6.7 T·m
The surface area of the cone (Sd)	216 cm²
Equivalent volume (Iron)	95 l
Mechanical compliance of the suspension (Cms)	1.43 mm/N
Drive mechanical losses (RMS)	0.8 kg/s
The moving mass of the membrane (Mmd)	30.7 g
Voice coil diameter	46 mm
Dimensions (mm)	234 mm
Diameter of the baffle cutout	205 mm
# Mounting holes	8
Diameter of the access opening	4.3 mm
Depth	92.4 mm

The SB23CACS45-4 Woofer from SB Acoustics is a high-performance bass mid-bass subwoofer designed to deliver deep, controlled low frequencies with exceptional clarity. Engineered for audiophiles and DIY enthusiasts, this driver excels in sealed enclosure designs, where its low total Q factor of 0.33 ensures tight, accurate, and well-damped bass response. It is ideal for use in high-fidelity home audio systems, studio monitors, or custom subwoofer builds where precision and linearity are paramount.

Technically, the woofer features a high-excursion design with a maximum linear Xmax of 6.5 mm, allowing it to produce substantial output without distortion. The 4-ohm impedance and 90 dB sensitivity (1m/2.83V) make it compatible with a wide range of amplifiers. Key specifications include a DC resistance of 3.3 ohms, a voice coil inductance of 0.27 mH, and low electromagnetic and mechanical Q values (Qes 0.35, Qms 6.0) that contribute to its controlled transient response. The driver has a nominal diameter of 234 mm, a mounting cutout of 205 mm, and a depth of 92.4 mm, with eight mounting holes for secure installation. With a robust build and carefully engineered parameters, the SB23CACS45-4 delivers authoritative, articulate bass that enhances any audio system.