True Systems PT2-500D 500-Series Microphone Preamp

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Product Code: 9999-11275
True Systems PT2-500D
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True Systems PT2-500D 500-Series Microphone Preamp

The True Systems PT2-500D 500-Series Microphone Preamp is optimized for dynamic and ribbon microphones, as well as produces superior results with self-powered tube mics!

While similar to the True Systems PT2-500 500-Series Microphone Preamp, the True Systems PT2-500D provides more gain (76 dB versus 70 dB) and higher input impedance, along with a unique low-frequency adjust control. The LO-F Adjust is a 6-position switch that provides nuanced low-frequency contouring that can be particularly effective with vocals and bass DI applications. A discrete FET DI with In and Thru connections completes the package.

True Systems PT2-500D 500-Series Microphone Preamp Features

  • API 500 series module format
  • Detented, continuous gain control and dual gain ranges for 76 dB maximum gain, easy recall of gain settings, and easy gain setting over wide gain ranges
  • High input impedance for clarity and accuracy with ribbon and dynamic microphones
  • Low-Frequency Adjust control for nuanced low-frequency contouring, high definition of vocals and bass without boosting high midrange, and elimination of low-frequency mud
  • Real DI with In and Thru jacks for easy hookup to amps for simultaneous DI and amp'd tracking or live sound, and to other DIs or effects for simultaneous tracking or live sound
  • Totally balanced topology for insensitivity to ground noise/loops, insensitivity to EMI (both external and from adjacent modules/power supplies), and reduced distortion
  • Rail-to-rail design for higher internal headroom, higher maximum input level without pad, and higher output level without transformer and excessive power supply current
  • 0.1% precision resistors for enhanced common mode and output signal balance performance and unit-to-unit sonic consistency
  • Steel enclosure for protection from EMI, RFI, ESD, and handling contamination/damage
  • 4-level signal meter

True Systems PT2-500D 500-Series Microphone Preamp Specifications

  • Max. output (0.001% THD): +29 dBu
  • THD+N (+26dBu, Gain=40dB): 0.0006%
  • Max. input (no pad): +20.5dBu (+28dBu, output at min. gain)
  • Frequency response (Gain=40dB): 1.5Hz to 550KHz (-3dB)
  • Noise (Rs=50 Ω): -133dBu e.i.n.
  • Slew rate: > 50V/uS
  • CMRR (CMV = +10dBu, 30Hz to 20KHz): 85dB
  • Low frequency adjust (-3dB, 6dB/oct): 40Hz, 80Hz, 160Hz, 280Hz, 400Hz
  • Low gain range, preamp: 7.5dB to 59dB
  • High gain range, preamp: 24.5dB to 76dB
  • Input impedance, preamp: 10Kohm
  • Low gain range, DI: -9.5dB to 42dB
  • High gain range, DI: 7.5dB to 59dB
  • Input impedance, DI: 2.5Mohm
  • Power consumption: +/- 16VDC, 65mA
  • Physical configuration: Per API 500 series module specification

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