CSS-1S/T

A compact surface-mount 2-way installation speaker designed for commercial background music and paging systems, delivering clear speech intelligibility and wide, even coverage in small to medium indoor environments. Manufacturer Description The JBL CSS-1S/T is a versatile compact two-way loudspeaker designed for use on 70V/100V distributed speaker lines or in 8-ohm direct mode. It is voiced for maximum speech clarity and intelligibility, making it suitable for foreground and background music applications in environments such as retail spaces, cafés, classrooms, and offices. It uses a 5.25-inch low-frequency driver and a 0.75-inch dome tweeter to deliver full-range sound with consistent coverage and includes a multi-tap transformer for distributed audio systems. Features 2-way compact surface-mount loudspeaker 5.25” (135 mm) LF driver + 0.75” (19 mm) dome tweeter Designed for foreground/background music and paging Supports 70V / 100V distributed systems or 8Ω direct mode Built-in multi-tap transformer (10W / 5W / 2.5W) Wide 120° × 120° coverage pattern Wall-mount bracket included Optimised for speech intelligibility in commercial spaces Polypropylene enclosure for durability Specifications (List Format) System Type: 2-way surface-mount installation speaker Frequency Range (-10 dB): 85 Hz – 18 kHz Frequency Response (±3 dB): 120 Hz – 16 kHz Power Capacity: 60 W Sensitivity: 86 dB (1W/1m) Maximum SPL: 106 dB (8Ω mode) Coverage: 120° horizontal × 120° vertical Nominal Impedance: 8 ohms (switchable) Transformer Taps: 10W / 5W / 2.5W (70V/100V) LF Driver: 5.25” (135 mm) cone driver HF Driver: 0.75” (19 mm) dome tweeter Enclosure Material: Structural polypropylene foam Dimensions: 229 × 159 × 143 mm Weight: 2.0 kg  Included Items JBL CSS-1S/T loudspeaker Wall-mount bracket assembly Installation hardware (varies by kit region)