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Visaton TI 100 8 Ohm, 4 Inch, High-End Midrange Driver

TI 100 · 8 Ω · part 1271 — Product photo

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TI 100 · 8 Ω · part 1271 — Product photoProduct photo TI 100 · 8 Ω · part 1271 — Rear view and connectionsRear view and connections TI 100 · 8 Ω · part 1271 — Dimension drawingDimension drawing TI 100 · 8 Ω · part 1271 — Response and impedanceResponse and impedance TI 100 · 8 Ω · part 1271 — Directivity patternDirectivity pattern TI 100 · 8 Ω · part 1271 — Cumulative spectral decayCumulative spectral decay

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

TI 100 · 8 Ω · part 1271 — Product photo

Product photo

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Part number: 1271

A 10 cm titanium-cone low-midrange driver for small high-end hi-fi speakers and multi-way midrange use.

Nominal size
10 cm / 4 inch
Impedance
8 Ω
Rated power
40 W
Cut-out
101 mm
Sensitivity
86 dB (1 W/1 m)
Resonance
62 Hz
ex VAT
£203.94 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 TI 100 has a cone of pure titanium, matched to its surround and adhesives to suppress cone resonance, and a large-aperture basket, rear-ventilated damper and open, phase-plugged voice coil that keep mechanical losses very low. Its double magnet arrangement is magnetically compensated. This 8 Ω version takes 40 W rated power, resonates at 62 Hz and allows ±4 mm of excursion.

Typical applications

  • Compact hi-fi speakers
  • Midrange in multi-way systems
  • High-end hi-fi systems
Full specifications
TI 100 · 8 Ω
Rated power40 W
Maximum power60 W
Nominal impedance8 Ω
Frequency response (−10 dB)fu–20000 Hz (fu: lower cut-off depends on the cabinet)
Mean sound pressure level86 dB (1 W/1 m)
Opening angle (-6 dB)120°/4000 Hz
Excursion limit±4 mm
Resonance frequency fs62 Hz
Magnetic induction1.2 T
Magnetic flux300 µWb
Height of front pole-plate4 mm
Voice coil diameter21 mm
Height of winding8.5 mm
Cut-out101 mm
Net weight1.16 kg
D.C. resistance Rdc6.4 Ω
Mechanical Q factor Qms5.95
Electrical Q factor Qes0.44
Total Q factor Qts0.41
Equivalent volume Vas5.68 l
Effective piston area Sd54.4 cm²
Dynamically moved mass Mms4.0 g
Force factor Bxl4.98 Tm
Inductance of the voice coil L0.7 mH
Terminals4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Compliance Cm1.37 mm/N
Dimensions and drawings
TI 100 · 8 Ω · part 1271 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow a 101 mm panel opening for a 121.5 mm frame, with the fixing holes on a 111 mm circle and 4.2 mm holes countersunk to 7.2 mm. Behind the panel leave about 72 mm of clear depth for the basket and the 75 mm magnet, with room beyond that for the terminals and the wiring. The double magnet makes the driver deep for its diameter, so confirm the depth available before choosing it for a slim cabinet.

The driver weighs 1.16 kg, so fit it to a rigid 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 frame is not distorted. Keep the cone and the surround clear of the grille and of any internal bracing. Travel is limited to ±4 mm, so choose the crossover points and the operating level with that in mind. 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: 3 l closed (fc 106 Hz, Qtc 0.7); 5 l closed (fc 90 Hz, Qtc 0.6); 5 l bass reflex with a BR 6.8 port (fb 60 Hz); 10 l bass reflex with a BR 6.8 port (fb 54 Hz).

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