SB Acoustics SB20PFCS30-7 Bass-midwoofer

SB ACOUSTICS | Mid-bass driver

SB Acoustics SB20PFCS30-7 Bass-midwoofer

Name: SB Acoustics Acoustics mélysugárzó | HQ AudioParts
Brand: SB Acoustics
SKU: SB20PFCS30-7
Price: 15990.00 HUF
Availability: LimitedAvailability

SKU: SB20PFCS30-7

203.2 mm 7 Ω

Achieve deep, controlled bass in your next speaker build with this 8-inch bass-midwoofer from SB Acoustics. Its foam surround and 30.5mm voice coil ensure reliable performance, with a total Q factor of 0.66 for versatile enclosure design.

15 990 Ft

(12 591 Ft + VAT)

Own warehouse Out of stock

Külső raktár 2. 7 pcs Aug 6.

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Technical data

Nominal diameter	203.2 mm
Impedance	7 Ω
Resonance frequency (Fs)	39 Hz
Sensitivity (SPL at 1 m / 2.83 V)	88 dB
Maximum linear deflection (Xmax)	5.5 mm

Total Q (Qts)	0.66
Electromagnetic Q (Qes)	0.77
Mechanical Q (Qms)	4.5
DC resistance (Re)	5 Ω
Voice coil inductance (L_e)	0.95 mH
BL product (BL)	5.6 T·m
The surface area of the cone (Sd)	222 cm²
Equivalent volume (Iron)	59.5 l
Mechanical compliance of the suspension (Cms)	0.85 mm/N
Drive mechanical losses (RMS)	1.07 kg/s
Woofer type	VMV D1se MQA Hi-End Audio DAC with Bluetooth 5.0 AptX
Surround material	Foam
Voice coil diameter	30.5 mm

The SB Acoustics SB20PFCS30-7 Bass-midwoofer is a meticulously engineered 8-inch driver designed to deliver deep, controlled bass and articulate midrange performance for discerning audio enthusiasts. As part of SB Acoustics’ respected range, this unit offers an exceptional balance of power and precision, making it a versatile choice for high-fidelity loudspeaker designs.

This driver excels in a variety of applications, from two-way bookshelf speakers to dedicated subwoofer systems and multi-way home theatre builds. Its well-damped response and linear excursion make it particularly suited for sealed and ported enclosures, where it can reproduce everything from punchy kick drums to subtle bass lines with authority and clarity. Whether you are upgrading an existing design or starting a new project, this woofer provides a solid foundation for immersive sound.

Technically, the SB20PFCS30-7 features a 30.5mm voice coil and a compliant foam surround, ensuring reliable long-term performance and low distortion. With a total Q factor (Qts) of 0.66, a resonant frequency (Fs) of 39 Hz, and an Xmax of 5.5mm, it offers a well-controlled low-end response. The 7-ohm impedance and 88 dB sensitivity (1m/2.83V) facilitate straightforward integration with typical amplifier loads, while the 0.95 mH voice coil inductance contributes to smooth high-frequency roll-off.

In summary, this bass-midwoofer combines robust construction with carefully tuned parameters, delivering authentic, room-filling sound for your next speaker project.