SB Acoustics SB12PACR25-4 Mid-range Woofer

SB ACOUSTICS | Mid-band subwoofer

SB Acoustics SB12PACR25-4 Mid-range Woofer

Name: SB Acoustics Acoustics mélysugárzó | HQ AudioParts
Brand: SB Acoustics
SKU: SB12PACR25-4
Price: 12990.00 HUF
Availability: OutOfStock

SKU: SB12PACR25-4

101.6 mm 4 Ω

Achieve precise mid-range reproduction in your audio system with this dedicated mid-band subwoofer from SB Acoustics. Its aluminium cone and copper-clad aluminium voice coil ensure low distortion and controlled response. The total Q factor (Qts) is 0.31, suitable for sealed enclosure designs.

12 990 Ft

(10 228 Ft + VAT)

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Technical data

Nominal diameter	101.6 mm
Impedance	4 Ω
Sensitivity (SPL at 1 m / 2.83 V)	87 dB
Resonance frequency (Fs)	52.5 Hz
Maximum linear deflection (Xmax)	5 mm

Total Q (Qts)	0.31
Electromagnetic Q (Qes)	0.33
Mechanical Q (Qms)	5
DC resistance (Re)	3.1 Ω
Voice coil inductance (L_e)	0.25 mH
BL product (BL)	4.35 T·m
The surface area of the cone (Sd)	50 cm²
Mechanical compliance of the suspension (Cms)	1.5 mm/N
Drive mechanical losses (RMS)	0.4 kg/s
Woofer type	DL200 Audio DAC
Membrane material	Aluminum
Voice coil diameter	25.4 mm
Voice coil wire material	Copper-clad aluminum
Magnetic material	Ferrite
Weight of a magnet	4 g
Basket / frame material	Plastic

The SB12PACR25-4 Mid-range Woofer from SB Acoustics is a dedicated mid-band subwoofer engineered to deliver exceptionally precise and articulate mid-range reproduction. This driver is the ideal choice for audiophiles and system builders seeking to enhance clarity in two-way or multi-way speaker designs, particularly for home audio, studio monitors, or high-fidelity car audio installations where accurate vocal and instrument reproduction is paramount.

Featuring a rigid aluminium cone and a copper-clad aluminium voice coil, this woofer achieves remarkably low distortion and excellent thermal management, ensuring consistent performance even during demanding passages. The ferrite magnet motor system, combined with a low total Q factor (Qts of 0.31) and a mechanical Q (Qms) of 5, provides tight, controlled bass response and seamless integration with other drivers. With a sensitivity of 87 dB (SPL 1m/2.83V) and a maximum linear excursion (Xmax) of 5 mm, it offers both efficiency and dynamic range. The 4-ohm impedance and 3.1-ohm DC resistance facilitate straightforward amplifier matching, while the plastic basket ensures lightweight yet durable construction. For discerning listeners, the SB12PACR25-4 delivers the nuanced, natural mid-range that brings music to life.