Visaton DK 133 8 Ohm, Re-Entrant Horn Speaker
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The DK 133 uses a 133 mm horn mouth and adjustable bracket to direct speech towards the listening area. It handles 10 W and is rated IP66/IP67. Its 0.5 m lead terminates in ferrules for connection within a suitable protected enclosure.
Typical applications
- Speech reproduction in public-address installations
- Outdoor or industrial announcements
Full specifications
| Rated power | 10 W |
|---|---|
| Maximum power | 15 W |
| Nominal impedance | 8 Ω |
| Frequency response (−10 dB) | 570–4400 Hz |
| Mean sound pressure level | 100 dB (1 W/1 m) |
| Opening angle (-6 dB) | 63°/4000 Hz |
| Voice coil diameter | 38 mm |
| Net weight | 0.625 kg |
| Sound pressure level | 106 dB (1 W/1 m)@ 2800 Hz |
| Colour | White, RAL 9010 |
| Connections | Ferrules |
| Length of cable | 0.5 m |
| Protective system | IP66 / IP67 |
| Temperature range | –25 to 70 °C |
| Horn mouth diameter | 133 mm |
| Horn depth shown in drawing | 99 mm |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Use the bracket and drawing to allow for the 133 mm horn mouth and 99 mm body depth. Fix it securely and leave enough clearance to adjust the aim and route the lead.
Connect the ferruled 0.5 m cable to a suitable 8 Ω amplifier, following the product polarity markings. This is the 8 Ω model; it has no stated 100 V transformer connection.
Protect and strain-relieve the cable joint. Keep the enclosure and cable-entry seals intact to retain the IP66/IP67 protection of the horn.
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