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Visaton WS 20 E 8 Ohm, 8 Inch, HiFi Woofer

WS 20 E · 8 Ω · part 1056 — Product photo

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WS 20 E · 8 Ω · part 1056 — Product photoProduct photo WS 20 E · 8 Ω · part 1056 — Dimension drawingDimension drawing WS 20 E · 8 Ω · part 1056 — Response and impedanceResponse and impedance WS 20 E · 8 Ω · part 1056 — Directivity patternDirectivity pattern

Product photographs and manufacturer drawings. Images are not to scale.

WS 20 E · 8 Ω · part 1056 — Product photo

Product photo

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Part number: 1056

A 20 cm hi-fi woofer for two-way systems and as a replacement driver in many hi-fi speakers.

Nominal size
20 cm / 8 inch
Impedance
8 Ω
Rated power
80 W
Cut-out
186 mm
Sensitivity
88 dB (1 W/1 m)
Resonance
47 Hz
ex VAT
£35.94 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The WS 20 E has a polypropylene cone and an even response that suits it to two-way use up to 2000 Hz, or to the low-midrange band of a large four-way system. Its basket shape also makes it a straightforward replacement in many hi-fi speakers. This 8 Ω version takes 80 W rated power, resonates at 47 Hz and fits a 186 mm cut-out.

Typical applications

  • Two-way hi-fi speakers
  • Large multi-way speaker systems
  • Replacement hi-fi woofer
Full specifications
WS 20 E · 8 Ω
Rated power80 W
Maximum power120 W
Nominal impedance8 Ω
Frequency response (−10 dB)fu–7000 Hz (fu: lower cut-off depends on the cabinet)
Mean sound pressure level88 dB (1 W/1 m)
Opening angle (-6 dB)67°/4000 Hz
Excursion limit±6 mm
Resonance frequency fs47 Hz
Magnetic induction0.85 T
Magnetic flux400 µWb
Height of front pole-plate5 mm
Voice coil diameter30 mm
Height of winding11 mm
Cut-out186 mm
Net weight1.3 kg
D.C. resistance Rdc6.8 Ω
Mechanical Q factor Qms5.36
Electrical Q factor Qes1.59
Total Q factor Qts1.23
Equivalent volume Vas44 l
Effective piston area Sd240 cm²
Dynamically moved mass Mms21 g
Force factor Bxl5.5 Tm
Inductance of the voice coil L1.0 mH
Terminals5.2 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Protective systemIP65 — front side in a sealed enclosure (sealing and a front grille may be needed)
Dimensions and drawings
WS 20 E · 8 Ω · part 1056 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 186 mm panel opening. The frame is not round: it measures 207 mm across the flats and 236 mm across the corners, with a 5 mm fixing hole at each of the four corners on a 219 mm circle, so mark the holes from the driver itself. The flange is only 0.9 mm thick, and behind the panel the driver needs about 85 mm of clear depth for the 185 mm basket body and the 90 mm magnet, with room beyond that for the terminals and the wiring.

Mount it on a rigid baffle with a continuous gasket or sealing strip between the frame and the panel. The flange is thin, so tighten the four screws evenly and only enough to seal, and keep the cone and the surround clear of the grille and of any internal bracing. The terminals take 5.2 x 0.8 mm blades on the positive side and 2.8 x 0.8 mm on the negative, so check blade width before choosing connectors, observe polarity and use an amplifier suited to the 8 Ω load.

The lower cut-off depends on the enclosure, so test the driver in the intended cabinet at the intended listening level before settling the design.

If it is going in as a replacement, check the cut-out, the fixing pattern, the depth behind the panel and the impedance against the original driver before ordering.

The IP65 rating covers the front of the driver only, and only when it is built into a sealed enclosure; bond and seal the frame to the baffle, and fit a front grille where the cone needs protection.

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