RDL FP-MX3R Remote Controlled Line-Level Mixer

Radio Design Labs' FP-MX3R is a top performer in applications where a user-accessible mixer must control the volume of multiple sources. The mixer accepts balanced or unbalanced audio sources through a detachable terminal block. FP-MX3R outputs are provided in balanced and unbalanced formats. Two unbalanced outputs are available to feed the mono mixer output to a stereo amplifier input. Remote control of the mixer allows audio signals to be kept at a single equipment location. Audio is mixed by VCA circuits that are adjusted by control signals from the remote control. Each input is equipped with an INPUT GAIN trimmer to set the proper operating level for each source. A standard RDL dual-LED VU meter provides visual indication of the output level from the mixer. Each input is normally adjusted to produce +4 dBu on the VU meter when the corresponding remote control channel is adjusted to maximum. This assures ample headroom at all normal operating levels. The mixer output is mono. The output is available on a single balanced detachable terminal block or on two unbalanced RCA jacks intended to connect directly to the stereo input of a power amplifier.

Features

• 3-channel remote-controlled audio mixer
• VCA level control for each input
• Balanced or unbalanced inputs and outputs
• Two mono unbalanced outs to feed stereo amplifier
• Directly controlled by RDL remotes with 2 or 3 channels

Specifications

• Inputs (3): Balanced or unbalanced line level
• Input Connections: Detachable Terminal Blocks
• Input Signal Range: -20 dBV to +8 dBu, adjustable (for +4 dBu output)
• Outputs (3): 150 O balanced; 1 kO unbalanced (2)
• Output Connections: Detachable Terminal Block (balanced); RCA Phono Jacks (unbalanced)
• Output Level: +4 dBu balanced, -10 dBV unbalanced
• Frequency Response: 20 Hz to 20 kHz (+/- 0.25 dB)
• THD+N: < 0.05% (20 Hz to 20 kHz);
• Noise below +4 dBu: < -100 dB (all channels off); < -75 dB (any channel on); < -70 dB (all channels on)
• Headroom above +4 dBu: > 18 dB
• CMRR: > 50 dB (50 Hz to 150 Hz)
• VCA attenuation: >90 dB (each input, remote control volume off)
• Indicators (3): Dual-LED VU meter (2); Audio present (threshold = 35 dB below +4 dBu output)
• Power Connections (3): Terminal block; dc power jack (2)
• Power Requirement: 24 Vdc @ 120 mA plus connected control output loads, if any
• Overall Dimensions: 1.42" H x 3.25" W x 8.14" L (3.61 x 8.26 x 20.6756 cm)

Note

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product. Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.