Mixers

Radio Design Labs ST-MX2, 2 Mic or Line Input Mixer - Mic and Line   Key Features Two-Input Audio Mixer Selectable Mic or Line Inputs Simultaneous Mic and Line Outputs Adds Additional Inputs to Existing Mixer Audio Output Dual-LED VU Metering Balanced or Unbalanced Inputs / Outputs Low-Noise and Low-Distortion Performance Interlocking-Adhesive Mounting Tabs Requires 24 VDC Power Supply   The ST-MX2 Two-Channel Audio Mixer with Mic/Line Inputs and Outputs from RDL is a two-channel audio mixer module with selectable microphone or line-level inputs. It can be used for fixed installations in commercial offices, retail stores, schools, medical offices, and general sound reinforcement applications to mix two sources into a mic or line-level input of a power amplifier. The ST-MX2 features dual-LED output meters, and audio-taper, single-turn gain adjustment dials for each input. In addition, interlocking, adhesive mounting tabs are included. A 24 VDC (PS-24AS, USA) power supply (available separately) is required.    

Read more less

Radio Design Labs ST-MX3, 3 Line Input Mixer - Line Out   The ST-MX3 is a line-level mixer module in the STICK-ON Series of products. It provides audio mixing of three line-level inputs with individual input gain adjustments. The line-level output is capable of driving either high or low impedance, balanced or unbalanced loads. The ST-MX3 operates from floating or bipolar dc power. For installations with microphone level inputs, use the ST-UMX3 Universal Audio Mixer.   Inputs (3): 30 kΩ balanced or unbalanced bridging Input Level: -20 dBu to +18 dBu (for +4 dBu output) -24 dBu to +14 dBu (for 0 dBu output) Output: 400 Ω to drive low or high impedance balanced or unbalanced lines Output Level: +4 dBu nominal, (adjustable; unbalanced output 6 dB below balanced line level) THD+N: < 0.03% (10 Hz to 20 kHz) Frequency Response: 10 Hz to 20 kHz (+/- 0.5 dB) Noise : < -80 dB (all inputs @ 10 dB gain, referenced to +4 dBu) Headroom: 18 dB Gain (each input): -14 dB to +24 dB (adjustable) CMRR: > 50 dB (50 to 120 Hz) Power Requirement: GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 55 mA Ambient Operating Environment: 0° C to 55° C

Read more less

Radio Design Labs STD-150, Passive Audio Divider/Combiner - 150 Ohm Features: 150 Ω Operation Combine Audio Signals to a Single Output Filter RF from an Audio Line Combine Stereo Signals Feed a Mono Signal to Stereo Inputs Combine Multiple Mics to a Single Amp Compactness of RDL STICK-ONs® Each STD module is a resistive branching network with RF filtering on each of the four channels. Any channel, A through D, may be either an input or an output. This permits combining stereo signals into mono inputs, splitting mono signals to multiple inputs, and even combining microphones with output shorting switches into a single amplifier input. The STD modules are available in 150 Ω, 600 Ω and 10 kΩ models. All inputs and outputs are balanced.   Circuit Type: Passive Circuit Configuration: Balanced Input/Output Impedance: 150 Ω Number of Inputs / Outputs: 4 total; usable in any combination; split1 in to 3 out; 2 in to 2 out; 3 in to 1 out Insertion Loss: 3 dB Isolation Between Channels: 3 dB (use RDL mixers or distributionamps for isolation) Maximum Signal Input: +22 dBu Power Requirement: Passive (not required) Package Type: Cardboard Box Package Dimensions: 2 x 2 x 4 in. Shipping Weight: 0.185 lbs. WEEE weight: 0.135 lbs. Tariff code: 8543.70.9960

Read more less

Radio Design Labs ST-UMX3, 3x1 Universal Audio Mixer - 3 Microphone or Line Inputs x 1 Microphone or Line Output   Features: Audio Mixing with Up To Three Inputs Switch-Selectable Mic or Line Inputs Switch-Selectable Mic or Line Output Add Additional Microphone or Line Level Inputs to an Existing Mixer Combine Signals of Different Level, Impedance, or Balanced /Unbalanced Configuration The ST-UMX3 is a three-channel audio mixer for combining mic-level or line-level signals to a single output. A MIC/LINE switch is provided for each input. A separate MIC/ LINE switch selects the output level. Each input features a separate preamplifier circuit, which isolates it from the other inputs. An audio taper single turn gain adjustment is provided for each of the three input preamps. Signals from the three preamps are actively summed and fed to the output amplifier which includes an RDL® dual-LED VU meter. Each input level is set while observing the LED output level meter. The dual-LED output meter follows standard VU ballistics. The intensity of the green LED progresses from minimum at -11 dBu to full intensity at +4 dBu. The flexibility of switching each input and the output between MIC or LINE allows installers to address a wide variety of mixing solutions with only one product type.    

Read more less