Pure Resonance Audio RMA120BT and SMG1 Sound Masking Bundle

The Pure Resonance Audio RMA120BT and SMG1 Sound Masking Bundle provide a complete installation-ready system for audio distribution and acoustic privacy. This bundle pairs the RMA120BT 120W rack-mount mixer amplifier with the SMG1 sound masking generator to deliver reliable audio routing, mixing and ambient noise control in commercial settings such as offices, hotels, wellness centers and educational environments.

The RMA120BT is designed for professional audio integrators, offering 120 watts of power, low-impedance or 70 V/100 V speaker outputs, and advanced protection and cooling settings. The SMG1 simultaneously offers white, brown and pink noise generation with tone adjustment, dual output formats and a compact footprint, making it ideal for deployment behind ceilings or furniture for sound masking or ambient playback.

Together this bundle empowers facility managers and installers to combine sound distribution and masking in one streamlined system—improving speech privacy, enhancing focus, and reducing acoustic distractions in demanding environments.

Key Features

• Combined Solution: Mixer amplifier plus sound masking generator included for integrated audio control and ambient noise coverage.
• Powerful Mixing & Distribution: RMA120BT handles 120 W and supports multiple input sources and speaker configurations.
• Ambient Sound Masking: SMG1 outputs white, brown and pink noise with tone adjustment for tailored acoustic environments.
• Commercial Grade Build: Rack-mount design, forced-fan cooling, protection circuitry and durable aluminum enclosure for 24/7 operation.
• Compact Installation Friendly: Low profile design allows installation in rack, wall, ceiling or concealed locations with minimal visibility.

Technical Specifications

RMA120BT Mixer Amplifier

• Rated Power Output: 120 Watts
• Speaker Outputs: 4–16 Ω or 70 V
• Frequency Response: 80 Hz – 16 kHz (±3 dB)
• Signal to Noise Ratio: MIC1-3: 66 dB; AUX1-2: 85 dB
• Total Harmonic Distortion: 0.05 %
• Cooling Mode: Forced-fan with variable speed, side-entry airflow
• Protection: Overheat and short-circuit protection
• Remote Control: IR remote with replaceable CR2025 (3 V) battery
• Dimensions (H × W × D): 1.73 × 19.05 × 11.61 Inches (44 × 484 × 295 mm)
• Weight: 9.92 lbs (4.5 kg)

SMG1 Sound Masking Generator

• Noise Type: White, Brown and Pink with tone adjustment
• Outputs: Dual RCA and Balanced ⅛-inch (3.5 mm) TRS
• Material: Aluminum enclosure
• Power Supply: 12 V DC
• Dimensions (H × W × D): 0.87 × 3.54 × 3.74 Inches (22 × 90 × 84 mm)
• Weight: 0.35 lbs (0.16 kg)
• Shipping Dimensions: 1.5 × 6.15 × 8.63 Inches (38 × 156 × 219 mm)
• Shipping Weight: 1 lb (0.45 kg)