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Design - Speakers
DS-1 | DS-2 | DS-3

Suitable for installation in solid walls and concrete ceilings thanks to an additional flush mounting enclosure. The speakers DS-1 up to DS-3 are made of aluminium treated with silver powder coating and fitted out with black front and rear covers. Infinite adjustment possibilities due to wall bar or ceiling bar with
stainless steel ball mounting kit. All speakers are very suitable for speech and music transmission. Recommended for underground railway stations, entrance halls, conference rooms, hotels, etc.

Underground references:

- KCRC underground, Hong Kong
- KCRC Light Rail Underground, Hong Kong
- MTRC underground, Hong Kong
- RET underground, Rotterdam

Datasheet [pdf] 110 kb

Technical data

Typ DS-1 DS-2 DS-3  
color silver / black silver / black silver / black  
load rating 10W/100V 20W/100V 30W/100V  
impedance 1000 Ω 500 Ω 333 Ω  
transformer matching 10 / 5 / 2,5W 20 / 10 / 5W 30 / 15 / 7,5W  
sound pressure level (1W/1m) 93dB 95dB 97dB  
max. sound pressure level (1m) 103dB 105dB 107dB  
frequency range (-10dB) 70-19000 Hz 70-19000 Hz 70-19000 Hz  
transmission angle 130° 130° 130°  
dimensions (mm) Ø 144x210 Ø 144x210 Ø 144x210  
weatherproof versions DS-1WP IP65 DS-2WP IP65 DS-3WP IP65  
weight 2,0kg 4,0kg 6,0kg  
connection 4-core cable 1,5m 4-core cable 1,5m 4-core cable 1,5m