ESX SXE12D2

The ESX SXE12D2 from the SIGNUM series impresses with its high-quality construction, powerful bass, and versatile applications. The 30 cm (12-inch) subwoofer was developed specifically for use in bass-reflex enclosures and offers a combination of high power handling, precise bass reproduction, and robust components.

The sturdy die-cast aluminum basket ensures a torsionally rigid design and reduces unwanted vibrations. The paper cone with a rubber surround is driven by a powerful dual magnet and a 50 mm dual voice coil. Thanks to the two 2-ohm voice coils, the subwoofer can be flexibly operated with a total impedance of either 1 or 4 ohms.

A distinctive feature is the pre-installed metal protective grille with its striking honeycomb design. It reliably protects the cone from mechanical damage and gives the subwoofer a high-quality look.

Technical Specifications

• Manufacturer: ESX

• Series: SIGNUM SXE

• Model: SXE12D2

• Type: Passive Subwoofer

• Size: 30 cm (12 inches)

• RMS Power Handling: 500 watts

• Maximum power handling: 1,000 watts

• Impedance: 2 + 2 ohms

• Connection options: 1 ohm in parallel / 4 ohms in series

• Voice coil diameter: 50 mm

• Voice coil winding height: 30 mm

• Voice coil former: Aluminum

• Magnetic Drive: Dual Magnet

• Magnet weight: 2 × 53 oz. (approx. 3 kg total)

• Magnet dimensions: Ø 156 × 40 mm

• Basket material: Die-cast aluminum

• Diaphragm material: Handmade paper diaphragm

• Bead: Rubber bead

• Dust-proof cap: Injection-molded polypropylene (PP)

• Centering Spider: Single Nomex Spider

• Core: Ventilated

• Linear stroke (Xmax): ±11 mm

• Maximum mechanical deflection: ±22 mm
  
  

Thiele-Small parameters (TSP)

• Resonance frequency (Fs): 28 Hz

• Total Quality (Qts): 0.31

• Electrical quality (Qes): 0.35

• Mechanical quality (Qms): 2.78

• Equivalent air volume (Vas): 71.5 liters

• Effective membrane area (Sd): 519 cm²

• Moving mass (Mms): 170 g

• DC resistance (Re): 2 + 2 ohms (manufacturer's specification)

• Voice coil inductance (Le): 2.6 mH

• Power factor (B/L): 18.6

• Sensitivity (SPL): 89 dB (1 W/1 m)

• Manufacturer's specified sound pressure level: 92 dB (2.83 V/1 m)
  
  

Installation Dimensions

• Outer diameter: 315 mm

• Installation diameter: 282 mm

• Installation depth: 150 mm

• Shipping weight: 8.2 kg
  
  
  

Case Recommendation According to ESX

Bass-reflex enclosure:

• Net volume: 45 liters

• Bass reflex port: Ø 100 mm

• Port area: 80 cm²

• Port length: 29 cm

• Tuning frequency (Fb): 37 Hz

• Lower cutoff frequency (F3): 35 Hz
  
  

Bandpass enclosure:

• Total Volume: 26 liters

• Ventilated volume: 32 liters

• Bass reflex ports: 2 × Ø 100 mm

• Total port area: 160 cm²

• Port length: 30 cm

• Tuning frequency (Fb): 57 Hz

• Lower cutoff frequency (F3): 39 Hz