Overview
The RU-MX4L is the ideal choice in many applications where a combination of balanced and/or unbalanced line-level signals needs to be mixed. Balanced connections use XLR connectors. Unbalanced signals are coupled through phono jacks. Each of the four RU-MX4L inputs can accept either a balanced XLR line-level input or an unbalanced line-level phono jack input. The unbalanced phono jack LINE OUTPUT from one RU-MX4L may connect to the unbalanced input of other equipment, or may be connected to the DIRECT input of another RU-MX4L or an RU-MX4 to expand mixing capabilities. The RU-MX4L provides one balanced output, switchable for mic or line level. Audio levels are adjustable on the front panel. Each input channel is equipped with a front-panel dual-LED VU meter that follows standard VU ballistics. The final mix is displayed on an LED string VU meter featuring a visually comfortable arc motion. A factory installed output isolation transformer is available by ordering the RU-MX4LT.
Features
- Four Channel Line-Level Audio Mixer
- XLR Balanced, Phono Jack Unbalanced Inputs
- Mic or Line XLR Output, Switchable
- Unbalanced Line Output and Direct Input
- Studio Quality, Low-Noise Performance
- Expansion Bussing Capability
- Additional Line Inputs Bussed to an RU-MX4
- Output Isolation Transformer (RU-MX4LT)
Specifications
| Balanced Line Inputs(4) | 20 k? balanced bridging |
| Balanced Line Input Level | -13 to +22 dBu for +4 dBu output |
| Unbalanced Line Inputs (4) | 2 k? unbalanced |
| Unbalanced Line Input Level | -25 dBV to +20 dBV for +4 dBu output; -10 dBV nominal |
| Gain Adjustments (4) | Balanced Line: Off to 17 dB gain Unbalanced Line: Off to 27 dB gain |
| Output Attenuator | 0 dB to infinity |
| Frequency Response | 20 Hz to 30 kHz (± 0.25 dB) |
| THD+N | < 0.01% |
| Residual Noise (below +4dBu output) | 4 line level sources (unity gain): < -82 dB (wideband) |
| Outputs (2) | +4 dBu 150 ohm balanced (switchable to MIC level -45 dBu); -10 dBV unbalanced |
| Indicators (17) | Dual-LED VU meter for each input; POWER LED; LED audio mix level meter, 0 dB = +4 dBu VU ballistic: -20 dB, -10 dB, -6 dB, -2 dB, 0 dB, +3 dB; Peak reading: +8 dB,+12 dB |
| Ambient Operating Environment | 0° C to 50° C |
| Power Requirement | GROUND-REFERENCED, 24 Vdc @ 150 mA, |
| Package Type | Cardboard Box |
| Package Dimensions | 6 x 6 x 2.625 in. |
| Shipping Weight | 1.84 lbs. |
| WEEE weight | 1.565 lbs. |
| Tariff code | 8518.40.2000 |
