ESS Woofer 12 Zoll ALU Basket, 4 OHM

manufacturer information
-21 %

RRP 279,00 €

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on stock Only 5 units remaining!
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12" Cast Frame Woofer Speaker

Buy a speaker with the engineering quality and transient response to match the ESS AMT-1 Air Motion Transformerthe ESS 12" cast frame woofer.

  • Treated and reinforced paper cone with rubber half-roll surround
  • Attractive, sturdy cast aluminum frame keeps components in alignment
  • Pure copper 1-1/2" voice coil wound on black aluminum former provides high power handling
  • Linear suspension system and bumped back plate for maximum bass
  • Highly conductive/fatigue resistant woven tinsel leads
  • Superior transient response guarantees highly accurate sound reproduction
  • Drop-in replacement for the ESS AMT Monitor speaker system

Product Details
How do you find a 12" woofer that matches the speed, accuracy, and audiophile performance of the ESS Air Motion Transformer? Look at the ESS 12" cast frame speaker! The ESS 12" incorporates fine engineering and uncompromising materials, resulting in an accurate, reliable, and eminently listenable bass woofer.

A treated and reinforced paper cone, combined with a high-strength 40 oz. ceramic magnet and 2" copper voice coil, provides ultra-fast transient response that really makes music come alive. The woofer's cast aluminum frame is strong and rigidnecessary if you want to enjoy music for years to come.

As a bonus, the ESS 12" woofer looks as good as it sounds!

  • Power handling: 200 watts RMS/400 watts max
  • VCdia: 2"
  • Le: 0.73 mH
  • Impedance: 4 ohms
  • Re: 3.9 ohms
  • Frequency range: 29-1,500 Hz
  • Magnet weight: 35 oz.
  • Fs: 24 Hz
  • Sensitivity: 91.5 dB 1W/1m
  • Vas: 6.69 cu. ft.
  • Qms: 4.90
  • Qes: 0.52
  • Qts: 0.47
  • Xmax: 6 mm
  • Dimensions: Overall diameter: 12-3/8", Cutout diameter: 11-1/8", Depth: 5-5/8".
  •  Surrounding: rubber

Short data

Usage as Woofer
Power Handling 200 Watt
Impedance 4 Ohm
Frequency from 29 Hz
Max. Frequency 1500 kHz
Sound pressure 91.5 dB


Overall dimensions 314 mm
Baffle cutout 282 mm
Depth (Total) 143 mm
Front material Aluminium
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Paper
Voice coil Ø 50 mm
Magnet-weight 992 g


Resonance fs fs: 24 Hz
Mechanical Q Qms: 4.9
Electrical Q Qes: 0.52
Total Q Qts: 0.47
Equivalent Air-Volumen Vas: 187 Liter
DC-Resistance Re: 3.9 Ohm
Coil Inductance Le: 0.73 mH
Max. Excursion +/- Xmax: 6 mm
Sound pressure dB: 91.5 SPL
You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

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