A "purist design" for optimal sonic performance and lowest possible noise floor.AC-coupled transformerless design for increased bandwidth and more accurate sonic reproduction.Wide gain range of 8.0 to 66dB with -3.5dB of variable output trim.Metal film resistors and polypropylene film capacitors.2 fully independent audio channels, each on separate printed circuit boards.No electrolytic capacitors in the signal path (non-phantom mode).Built-in Power supply using 2 ultra-low noise toroidal transformers (1 for the audio signal circuits; 1 for 48V phantom and control circuitry).Housed in an isolated enclosure constructed from satin coated 14-gauge steel, designed to eliminate all traces of AC artifacts.Swiss-made 24-position gain potentiometers featuring gold-plated contacts and thinsurface-mounted film resistors with 1% tolerances.High-reliability sealed relays and toggle switches.High current output stage to accommodate very long cable runs and capable of driving 600ohm loads.Rigid external chassis with solid aluminum front and side panels and heavy gauge steel on the top, bottom and rear panels for shielding from RF, EMI and external vibrations.Circuit board with pure copper tracings and gold plating that yields low impedance characteristics.Designed to be powered up at all times for optimal performance.Low operating temperature to ensure long life.
Configuration: Fully balanced differentialPower Supply Transformers: 1 x 10VA (for audio); 1 x 10VA (controller circuitry)Balanced inputs (XLR): 2 - 1 / channelBalanced outputs (XLR): 2 - 1 / channelMicrophone Input Impedance: 3,400ohmPhantom Input Impedance: 6,800ohmOutput Impedance: 100ohmGain Range: 8dB to 66dB - 24 steps in 2.5dB incrementsTrim: 0 to -3.5dBBandwidth: <10Hz-250kHz (+0/-3dB)Noise: -133dB ref EINTHD+N @ +30dBu out, 20dB gain: <0.0002%THD+N @ +30dBu out, 41dB gain: <0.0003%THD+N @ +30dBu out, 60dB gain: <0.0015%CCIF 19kHz+20kHz IMD @41dB gain, +30dBu: <0.0002%SMPTE 4:1 5kHz+50Hz IMD @41dB gain, +30dBu: <0.0006%CMRR 50Hz-20kHz @41dB gain, 100mV input: >65dB, Typ. >72dBPhase deviation 50Hz-20kHz: <6 degreesMax input level: +21dBuMax output level: +32dBuPower Consumption: 15 WattsAC Power Requirements: 120V / 60Hz or 240V / 50HzShipping Weight: 18 lbs / 8 KgsRack mount size: 2 spacesDimensions (W x H x D, inches): 19.0 x 3.6 x 13.7Warranty - Transferable: 3 years
