While many older commercial units
| # | Label | Function | |---|-------|----------| | 1 | Power Switch | Main AC power (| = ON, O = OFF) | | 2 | Power LED | Blue = Normal operation | | 3 | Signal LED (Ch A/B) | Green flashes = Signal present | | 4 | Clip/Limit LED | Red = Output clipping or limiter active | | 5 | Volume Knobs | Independent level attenuation (Ch A / Ch B) | | 6 | Rack Ears | Fixed, for 19" rack installation | jbl rma 220 user manual
Offers separate volume and EQ knobs for microphones and music, allowing for precise balancing of the "wet" vocal signal and background track. Technical Specifications Specification Frequency Response 20Hz – 20kHz ($\pm$3dB) for both Mic and Music Power Consumption Dimensions (WxHxD) 420 x 138 x 430 mm THD (Total Harmonic Distortion) 0.03% (at 1kHz, 8 Output Terminals While many older commercial units | # |
: 20Hz – 20kHz (±3dB) for both music and microphone channels. Power Consumption : Rated at approximately 650W. Dimensions & Weight : 420 x 138 x 430 mm; approximately 13.5 kg. 3. Connectivity Guide Dimensions & Weight : 420 x 138 x 430 mm; approximately 13