Cambridge DS1339B 70V plenum loudspeaker (Black) - 911.0708.900
Cambridge DS1339B 70V plenum loudspeaker (Black) - 911.0708.900 is backordered and will ship as soon as it is back in stock.
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Cambridge DS1339B 70V plenum loudspeaker (Black) - 911.0708.900
Product Overview
The Cambridge Sound DS1339B (part number 911.0708.900) is a black 70V plenum loudspeaker built around a 5.25-inch driver mounted on axis. It is designed for sound masking, paging, and music distribution in open structure architecture and above suspended ceilings. An internal 70.7-volt transformer with rotary volume control simplifies wiring on distributed audio lines. Four-point suspension allows fast installation and leveling.
Product Description
The DS1339B pairs a compact enclosure with a convoluted, flame-retardant acoustical insert that suppresses standing waves and metallic resonance inside the cabinet. The result is smoother output that suits the broadband noise content of sound masking systems as well as voice paging and background music. When suspended in an exposed-structure facility, the assembly presents a clean appearance with no controls or wiring visible from below, so it works in open ceilings as well as concealed plenum spaces. Tap selection is handled at the internal 70.7V transformer with a rotary volume control, letting installers balance zone levels without external attenuators. ETL listing to UL 1480A and UL 2043 covers both the loudspeaker and air-handling space requirements common in commercial specifications. For matching components and emitters, see the Cambridge Sound collection at Creation Networks.
Key Features
- 5.25-Inch On-Axis Driver — uniform dispersion suited to sound masking, paging, and music signals.
- Internal 70.7V Transformer — rotary volume control for level setting on distributed 70V lines.
- Acoustically Treated Enclosure — convoluted, flame-retardant insert eliminates standing waves and metallic resonance.
- Four-Point Suspension — quick installation and fast leveling above suspended ceilings or in open structure.
- Clean Suspended Appearance — no exposed controls or wiring visible from below.
- ETL Listed — conforms to UL 1480A and UL 2043 for plenum installation.
Technical Specifications
| Specification | Value |
|---|---|
| Model | DS1339B |
| Part Number | 911.0708.900 |
| Driver | 5.25-inch diameter, mounted on axis |
| Transformer | Internal 70.7V with rotary volume control |
| Mounting | Four-point suspension |
| Color | Black |
| Listings | ETL listed to UL 1480A and UL 2043 |
| Applications | Sound masking, paging, music |
Specifications sourced from Cambridge Sound vendor data. Unlisted values are omitted rather than estimated.
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