SB ACOUSTICS | Bass mid-bass subwoofer

SB Acoustics SB13PFCR25-4 Woofer

Name: SB Acoustics Acoustics mélysugárzó 5" | HQ AudioParts
Brand: SB Acoustics
SKU: SB13PFCR25-4
Price: 10990.00 HUF
Availability: InStock

SKU: SB13PFCR25-4

127 mm 4 Ω

Achieve tight, controlled bass in a compact design with this 5-inch SB Acoustics woofer, ideal for high-fidelity two-way or subwoofer systems. Its paper cone and 4-ohm impedance deliver a low total Q factor of 0.29 for accurate transient response.

10 990 Ft

(8 654 Ft + VAT)

Saját raktár Out of stock

Külső raktár 2. 10+ pcs júl. 9.

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Technical data

Nominal diameter	127 mm
Impedance	4 Ω
Resonance frequency (Fs)	44 Hz
Sensitivity (SPL at 1 m / 2.83 V)	89 dB
Maximum linear deflection (Xmax)	4.5 mm

Total Q (Qts)	0.29
Electromagnetic Q (Qes)	0.33
Mechanical Q (Qms)	2.6
DC resistance (Re)	3.2 Ω
Voice coil inductance (L_e)	0.56 mH
BL product (BL)	5.3 T·m
The surface area of the cone (Sd)	87 cm²
Mechanical compliance of the suspension (Cms)	1.25 mm/N
Drive mechanical losses (RMS)	1.1 kg/s
Woofer type	VMV D2R Audio DAC
Voice coil diameter	25.4 mm

The SB13PFCR25-4 from SB Acoustics is a 5-inch paper cone woofer engineered to deliver tight, controlled bass within a compact footprint. This driver is an excellent choice for audiophiles and DIY enthusiasts seeking high-fidelity performance in two-way monitor designs, compact subwoofer systems, or as a dedicated mid-bass unit in multi-way loudspeakers. Its carefully balanced parameters make it particularly suited to sealed or small vented enclosures, where its low total Q of 0.29 ensures a clean, articulate low-end response.

Technically, this woofer features a 25.4mm voice coil and a 4-ohm impedance, with a DC resistance of 3.2 ohms. The paper cone, combined with a sensitivity of 89dB (1m/2.83V), offers an excellent blend of efficiency and natural sound character. The low electrical Q (Qes 0.33) and mechanical Q (Qms 2.6) contribute to its precise damping, while the 4.5mm linear excursion (Xmax) allows for meaningful output without distortion. With a resonant frequency of 44Hz and an effective cone area of 87cm², this driver is optimised for deep, controlled bass reproduction. Whether you are upgrading an existing design or building from scratch, the SB13PFCR25-4 delivers authoritative, musical low frequencies in a versatile and compact package.