AtlasIED M812‑S2T7‑BX‑RS 8-Inch Channel‑Mount Sound Masking Speaker

The M812‑S2T7‑BX‑RS is a factory‑assembled 8″ masking speaker in a square, channel‑rail enclosure designed for T‑bar ceilings. With a powerful internal 70 V transformer delivering up to 5 W and selectable 0.5, 1, 2, or 5 W taps, it offers flexible audio coverage. The black epoxy finish blends into common ceiling plenum environments, and transmission alignment is optimized via upward sound dispersion.

Key Features

• Speaker: 8″ dual‑cone C10A driver
• Transformer Taps: 0.5, 1, 2, and 5 W @ 70.7 V
• Enclosure Volume: 529 in³ for full low‑end response
• Mounting: Includes two 23¾″ channel support rails and hardware for easy T‑bar or wall mount
• Dispersion: Upward‑firing coverage ideal for ceiling mounting
• Finish: Durable black epoxy
• Certifications: UL1480 listed, NDAA & TAA compliant
• Warranty: 60 months

Technical Specifications

• Dimensions: 11⅝″ × 11⅝″ × 4″ (29.5 × 29.5 × 10.2 cm)
• Weight: 9 lbs (4.08 kg)
• Enclosure Volume: 529 in³ (0.087 m³)
• Frequency Response: 100 Hz – 10 kHz ±1.5 dB
• Sensitivity: 97 dB peak / 94 dB avg
• Power Taps: 0.5 / 1 / 2 / 5 W @ 70.7 V
• Transformer: 70.7 V (T7) internal

What’s Included

• M812‑S2T7‑BX‑RS speaker assembly
• Two 23¾″ support rails + mounting hardware