ESS 12 Zoll Passive Radiator - ALU Basket


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ESS TT 20
12" Cast Frame Passive Radiator


Overview
The ESS 12" passive radiator augments a loudspeaker system's bass response, and is an exact cosmetic match for ESS active woofers.

Highlights
  • Treated and reinforced paper cone with rubber half-roll surround
  • Attractive, sturdy cast aluminum frame keeps components in alignment
  • Linear suspension system for maximum bass and minimum distortion
  • Superior transient response guarantees highly accurate sound reproduction
  • Engineered to match ESS active woofers


Product Details
The ESS 12" passive radiator is engineered to match ESS active woofers cosmetically while helping the speaker system achieve excellent bass response. A treated paper cone with half-roll rubber surround provides a fast, well-damped structure that offers an extended lifetime of service.

Passive radiators are a viable alternative to traditional ducted ports. Their paper diaphragm is a mechanical substitute for a port's air load, and tuning is achieved by adding mass instead of adjusting port diameter and length. Passive radiators are especially useful when a speaker's projected optimum port length exceeds available cabinet depth.

Specifications:
  • Fs: 18 Hz
  • Vas: 4.44 cu. ft.
  • Qms: 2.30
  • Cms: 0.31 mm/N
  • Mms: 250 g
  • Rms: 12.4 kg/s
  • Sd: 535.8 sq. cm.
  • Xmax: 11 mm
  • Dimensions: Overall diameter: 12-3/8", Cutout diameter: 11-1/8", Depth: 3-1/2".
  •  Surrounding: rubber

Short data

Usage as Woofer
 

Chassis-data

Overall dimensions 314 mm
Baffle cutout 282 mm
Depth (Total) 89 mm
Front material Aluminium
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Paper
 

Thiele-Small-Parameter

Resonance fs fs: 18 Hz
Mechanical Q Qms: 2.3
Equivalent Air-Volumen Vas: 124.3 Liter
 
Mech. Compliance Cms: 0.31 mm/N
Moving Mass Mms: 250 g
mech. Resistance Rms: 12.4 kg/s-¹
Max. Excursion +/- Xmax: 11 mm
Membrane Area Sd: 535.8 cm²
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.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.

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