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Visaton AL 200 8 Ohm, 8 Inch, High-End Woofer

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AL 200 · 8 Ω · part 1281 — Product photo

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AL 200 · 8 Ω · part 1281 — Product photo Product photo AL 200 · 8 Ω · part 1281 — Rear view and connections Rear view and connections AL 200 · 8 Ω · part 1281 — Dimension drawing Dimension drawing AL 200 · 8 Ω · part 1281 — Response and impedance Response and impedance AL 200 · 8 Ω · part 1281 — Directivity pattern Directivity pattern AL 200 · 8 Ω · part 1281 — Cumulative spectral decay Cumulative spectral decay

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

AL 200 · 8 Ω · part 1281 — Product photo

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Part number: 1281

A 20 cm aluminium-cone high-end woofer for two- and three-way hi-fi systems, and for the low-midrange of four-way designs.

Nominal size
20 cm / 8 inch
Impedance
8 Ω
Rated power
120 W
Cut-out
190 mm
Sensitivity
88 dB (1 W/1 m)
Resonance
32 Hz
£169.95 Business price, ex VAT £203.94 inc VAT at 20%
Maximum quantity available reached.

Description

The AL 200 uses a stiff aluminium cone in a cast aluminium basket with an elastic rubber surround, and a vented pole plate, vented damper and Kapton voice-coil former keep losses low. The light cone gives a fast transient response. This 8 Ω version takes 120 W rated power, resonates at 32 Hz and allows ±10 mm of excursion.

Typical applications

  • Two-way hi-fi speakers
  • Three-way hi-fi speakers (bass/midrange)
  • Low-midrange in three- and four-way systems
  • High-end hi-fi systems
Full specifications
AL 200 · 8 Ω
Rated power120 W
Maximum power180 W
Nominal impedance8 Ω
Frequency response (−10 dB)fu–9000 Hz (fu: lower cut-off depends on the cabinet)
Mean sound pressure level88 dB (1 W/1 m)
Opening angle (-6 dB)122°/4000 Hz
Excursion limit±10 mm
Resonance frequency fs32 Hz
Magnetic induction1.3 T
Magnetic flux930 µWb
Height of front pole-plate6 mm
Voice coil diameter38 mm
Height of winding20 mm
Cut-out190 mm
Net weight2.5 kg
D.C. resistance Rdc6.6 Ω
Mechanical Q factor Qms3.73
Electrical Q factor Qes0.39
Total Q factor Qts0.35
Equivalent volume Vas77 l
Effective piston area Sd216 cm²
Dynamically moved mass Mms21 g
Force factor Bxl8.8 Tm
Inductance of the voice coil L1.2 mH
Terminals4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Dimensions and drawings
AL 200 · 8 Ω · part 1281 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow a 190 mm panel opening for a 222 mm frame, with the fixing holes on a 210 mm circle and 5 mm holes countersunk to 9 mm. Behind the panel leave about 89 mm of clear depth for the basket and the 120 mm magnet, with room beyond that for the terminals and the wiring.

At 2.5 kg this is a heavy driver, so fit it to a rigid, well braced baffle with a continuous gasket or sealing strip between the frame and the panel, and tighten the fixings evenly and only enough to seal so the cast frame is not distorted. With ±10 mm of travel available, check that the cone and the rubber surround stay clear of the grille and of any internal bracing at full excursion. The terminals take 4.8 x 0.8 mm blades on the positive side and 2.8 x 0.8 mm on the negative, so blade size identifies polarity; observe it and use an amplifier or crossover suited to the 8 Ω load.

Visaton's published enclosure suggestions for this driver: 30 l bass reflex with a BR 25.50 port (fb 40 Hz); 50 l bass reflex with a BR 25.50 port (fb 31 Hz); 70 l bass reflex with a BR 25.50 port (fb 27 Hz).

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