MONACOR | Broadband subwoofer

Monacor SPX-20M 2'' Full Range Driver

Name: Monacor SPX-20M mélysugárzó 2' | HQ AudioParts
Brand: Monacor
SKU: SPX-20M
Price: 19990.00 HUF
Availability: LimitedAvailability

SKU: SPX-20M

50.8 mm 8 Ω

Achieve clear, full-range sound in compact designs with this 2-inch driver, ideal for broadband subwoofer applications. Its neodymium magnet and aluminium cone ensure efficient performance, with a total Q factor of 0.42 for controlled bass response.

19 990 Ft

(15 740 Ft + VAT)

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Technical data

Nominal diameter	50.8 mm
Impedance	8 Ω
Sensitivity (SPL at 1 m / 2.83 V)	87 dB
Shielded	Yes
Power tolerance (max)	30 W

Resonance frequency (Fs)	157 Hz
Maximum linear deflection (Xmax)	0.5 mm
Total Q (Qts)	0.42
Electromagnetic Q (Qes)	0.46
Mechanical Q (Qms)	4.52
DC resistance (Re)	6.9 Ω
Voice coil inductance (L_e)	0.13 mH
BL product (BL)	4.5 T·m
The surface area of the cone (Sd)	13 cm²
Equivalent volume (Iron)	0.2 l
Moving mass with air load (Mms)	1.3 g
Mechanical compliance of the suspension (Cms)	0.76 mm/N
Woofer type	DS2 Audio DAC
Membrane material	Aluminum
Surround material	Rubber
Voice coil diameter	25 mm
Voice coil wire material	Copper
Magnetic material	Neodymium
Basket / frame material	Rolled steel
Dimensions (mm)	57 mm
Diameter of the baffle cutout	51.5 mm
Depth	37.5 mm

The Monacor SPX-20M 2-inch Full Range Driver is a compact yet powerful broadband subwoofer designed to deliver clear, full-range audio in space-constrained applications. This versatile driver excels in scenarios where a small footprint is essential, such as in portable speaker systems, multimedia enclosures, or custom audio installations where balanced sound reproduction across the frequency spectrum is required without the need for multiple dedicated drivers.

Technically, the SPX-20M features a neodymium magnet and an aluminium cone membrane, ensuring efficient performance and low distortion. With a sensitivity of 87 dB SPL at 1 metre per 2.83 volts, it provides ample output for its size. The driver’s total Q factor (Qts) of 0.42, combined with a mechanical Q (Qms) of 4.52 and an electromagnetic Q (Qes) of 0.46, indicates well-damped behaviour suitable for sealed or small vented enclosures. The voice coil has a DC resistance of 6.9 ohms and an inductance of 0.13 mH, while the maximum linear excursion (Xmax) is 0.5 mm. The cut-out diameter is 51.5 mm, and the overall depth is 37.5 mm, making integration straightforward.

This driver is an excellent choice for achieving high-quality sound in compact designs, offering reliable performance and durability for demanding audio projects.