Visaton B 100 6 Ohm, 4 Inch, High-End Full Range Speaker
Product photo · Enlarge image
Product photo
Rear view and connections
Dimension drawing
Response and impedance
Directivity pattern
Cumulative spectral decay
Product photographs and manufacturer drawings. Images are not to scale.
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The B 100 has a paper cone with a phase plug, a copper impedance-control ring and a rigid aluminium die-cast basket, and its response rises slightly at the top so the balance stays pleasant off axis. This 6 Ω version takes 30 W rated power, gives 88 dB (1 W/1 m) and resonates at 75 Hz.
Typical applications
- Single-driver full-range speakers
- High-end hi-fi systems
Full specifications
| Rated power | 30 W |
|---|---|
| Maximum power | 60 W |
| Nominal impedance | 6 Ω |
| Frequency response (−10 dB) | fu–20000 Hz (fu: lower cut-off depends on the cabinet) |
| Mean sound pressure level | 88 dB (1 W/1 m) |
| Opening angle (-6 dB) | 112°/4000 Hz |
| Excursion limit | ± 7.0 mm |
| Maximum linear displacement | ± 1.65 mm |
| Resonance frequency fs | 75 Hz |
| Magnetic induction | 1.29 T |
| Magnetic flux | 316 µWb |
| Height of front pole-plate | 3 mm |
| Voice coil diameter | 25.5 mm |
| Height of winding | 6.3 mm |
| Cut-out | 101 mm |
| Net weight | 0.68 kg |
| D.C. resistance Rdc | 5.8 Ω |
| Mechanical Q factor Qms | 10.13 |
| Electrical Q factor Qes | 0.54 |
| Total Q factor Qts | 0.52 |
| Equivalent volume Vas | 5.27 l |
| Effective piston area Sd | 54.1 cm² |
| Dynamically moved mass Mms | 3.2 g |
| Force factor Bxl | 4.1 Tm |
| Inductance of the voice coil L | 0.36 mH |
| Compliance Cm | 1.28 mm/N |
| Terminals | 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-) |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Allow a 101 mm panel opening. The frame is 121.5 mm in diameter, with 4.2 mm fixing holes countersunk to 7.2 mm on a 111 mm circle; mark them from the driver itself rather than assuming the spacing. Behind the panel allow about 53 mm for the 101 mm basket and the 75 mm magnet, plus room for the terminals and the wiring.
Mount it on a rigid baffle with a continuous seal between the frame and the panel, and tighten the fixings evenly and only enough to seal so the frame is not distorted. With ±7.0 mm of travel available, check that the cone and the surround stay clear of any grille and of internal bracing at full excursion. Connect to the 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-) blade terminals with matching push-on connectors and observe polarity; the two blade widths identify it. Use an amplifier suitable for the 6 Ω load.
Visaton's published enclosure suggestions for this driver: 5.8 l closed (fc 107 Hz, Qtc 0.71); 11 l bass reflex with one BR 19.24 port cut to 9 cm (fb 60 Hz).
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