Infrared transmitter

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Concerto Features Two pairs XLR input connectors for balanced system configurations. Three pairs RCA input connectors for unbalanced system configurations. Two pairs of parallel, high-current, balanced line level preamplifier outputs to allow driving of external amplifiers, subwoofers, zones, etc. Fully-balanced transformer-coupled inputs provide universal compatibility with other components and eliminate ground loop noise and EMI. Fully-balanced circuit topology implemented on all inputs and outputs. Bypass function allows for transparent use in combination audio/home theater systems. Regulated, high-current, linear power supply provides stable operating voltage with the lowest possible noise and distortion artifacts under all operating and line conditions. Low power consumption permits constant power-up operation to eliminate warm-up time. Optical encoder type volume control maintains quiet, trouble-free performance and accuracy over the entire lifetime of the product. Dual range volume control allows large volume level changes when knob is rotated abruptly, yet allows small, precise volume level changes when knob is rotated slowly. Six function, hand-held infrared remote transmitter. Ultra-low resonance, structurally rigid chassis, precision-machined from a solid block of aircraft grade 6061-T6 aluminum. Optional plug-in phono cards (installed internally) convert Line Input 2 to high performance phono inputs. Three gain and loading options can accommodate moving magnet (MM), moving coil (MC) cartridge types and high output moving coil cartridge types. Concerto Specifications Overall Gain 20 dB Gain Range 99.5 dB, 199 Equal Increments Gain Resolution 0.5 dB, +/- 0.03 dB Over Entire Range Frequency Response 10 Hz – 280 kHz, -3 dB Maximum Input Level 15 volts RMS @ 0 dB Gain Maximum Output Level 13.5 volts RMS CCIF Intermodulation Distortion, 19/20 kHz b' Output Noise Level 43 Microvolts, Unweighted 20 Hz – 20 kHz Bandwidth, 0 dB Gain Common Mode Rejection Ratio b'>' 90 dB, 20 Hz – 20 kHz Input Impedance 40K ohms Balanced or Unbalanced Channel Separation b'>' 90 dB, 20 Hz – 20 kHz Inputs 2 pair Balanced (XLR) 1 pair Unbalanced (RCA) Unity Gain (Bypass) 3 pair Unbalanced (RCA) Outputs 2 pair Balanced (XLR) Line Level Power Consumption 7 watts Preamplifier Weight 21 lbs. / 9.8 kg Overall Preamplifier Dimensions (H) x (W) x (D) 3.2” x 17.3” x 12.9” 80mm x 440mm x 328mm