Visaton DK 121 8 Ohm, Built In Horn Speaker
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The DK 121 provides focused speech-band output from a compact square-front horn. Its 2.5 m lead and protected construction suit built-in installations where the connection point is some distance from the speaker.
Typical applications
- Transport announcement equipment
- Industrial speech and warning signals
Full specifications
| Rated power | 10 W |
|---|---|
| Maximum power | 15 W |
| Nominal impedance | 8 Ω |
| Frequency response | 570–4400 Hz |
| Mean sound pressure level | 100 dB (1 W/1 m) |
| Opening angle (-6 dB) | 69°/4000 Hz |
| Net weight | 0.65 kg |
| Sound pressure level | 104 dB (1 W/1 m)@ 2947 Hz |
| Length of cable | 2.5 m |
| Protective system | IP66 / IP67 |
| Temperature range | −40 to 85 °C |
Dimensions and drawings

Dimension drawing · Open original image
Installation and cabinet guidance
Check the aperture, fixing pattern and rear clearance in the current drawing and preserve the horn’s seals.
Connect the 2.5 m lead with its insulated 4.8 × 0.8 mm and 2.8 × 0.8 mm connectors to a suitable 8 Ω amplifier.
Use the M6 equipotential-bond stud where required, with a maximum tightening torque of 2 Nm. Protect the cable joint separately from the IP66/IP67 horn.
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