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DBX
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DBX 386



The Silver Series 386 dual channel tube mic preamp puts the best of both worlds into one affordable package by combining the warmth of the irreplaceable vacuum tube with the proprietary dbx® Type IV conversion system. The 386 boasts many of the same features as other products in the Silver Series, such as +48V phantom power, a phase invert switch, and low cut filtering; but also includes digital outputs in both AES/EBU, and S/PDIF formats.

The high impedance, 1/4" instrument input located on the front panel, as well as the mic/line switch, and 20 dB pad show our dedication to providing convenience in the studio. The 12 segment LED meters provide a visual indication of analog or digital levels at a glance. The rear panel includes both mic and line inputs and outputs, word clock sync input and output, and digital outputs. Add selectable sampling rates of 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz; selectable dithering and noise shaping; and separate analog and digital output controls to this already impressive list of features, and we think you?ll agree that the 386 lives up to the innovative dbx® standards.

Features

  • Two channel tube microphone preamplifier
  • Selectable 96kHz, 88.2kHz, 48kHz, or 44.1kHz sampling rate
  • 24, 20, and 16-bit wordlengths
  • Selectable dither and noise shaping
  • AES/EBU and S/PDIF digital outputs
  • Word clock sync input and output
  • Separate analog and digital output control
  • Type IV conversion system
  • 60dB of gain and +/- 15dB of output gain
  • Selectable mic/line switch
  • 48 volt phantom power
  • 20dB pad
  • 75Hz low cut filter
  • Phase reverse
  • Segment LED analog/digital



  • Specifications

    MICROPHONE INPUT

  • Connector: Female XLR Pin 2 Hot
  • Type: Electronically balanced/unbalanced
  • Impedance: 330 ohms
  • Max Input Level: -9 dBu or +11 dBu with 20 dB pad engaged
  • CMRR: >40dB, Typically 55dB
  • Equivalent Input Noise: Typically 120 dBu with a 150", source load 20 Hz to 20kHz Bu


  • LINE INPUT (REAR PANEL)

  • Connectors: TRS 1/4" Jack
  • Type: Electronically balanced/unbalanced
  • Impedance: 20k ohms unbalanced, 40k ohms balanced
  • Maximum Input Level: +21dBu balanced or unbalanced
  • CMRR: >40dB, Typically 55dB
  • Gain (Drive Control): -15dB to +15dB


  • INSTRUMENT INPUT (FRONT PANEL)

  • Connector: TS 1/4" Jack
  • Type: Unbalanced
  • Impedance: 470k ohms
  • Maximum Output Level: >+21 dBu unbalanced
  • Insert Connector: TRS 1/4"
  • Type: Unbalanced
  • Impedance: 100 ohms, send -20 ohms return


  • ANALOG OUTPUTS

  • Connector: Male XLR Pin 2 Hot and TRS 1/4"
  • Type: Servo-balanced/unbalanced
  • Impedance: Balanced 120 ohms, unbalanced 60 ohms
  • Maximum Output Level: >+21 dBu, >+20 dBm (into a 600 ohms load)


  • DIGITAL OUTPUTS

  • Connector: XLR for AES/EBU, RCA for S/PDIF
  • Impedance: 110 ohms for AES/EBU, 75 ohms for S/PDIF


  • WORD SYNC INPUT/OUTPUT

  • Connectors: BNC
  • Input Impedance: 75 ohms terminated by internal jumper
  • Input: 96, 88.2, 48, or 44.1kHz word clock
  • OUTPUT: 96, 88.2, 48, or 44.1kHz word clock


  • SYSTEM PERFORMANCE

  • DRIVE Control Range: +30dB to +60dB for Mic Input, -15dB to +15dB for Line and Instrument Inputs
  • LEVEL Control Range (Analog and Digital): -15dB to +15dB
  • LINE: Selects between microphone and line inputs
  • Phantom Power: +48V
  • PAD: 20dB pad
  • PHASE: Reverses pins 2 and 3 of the microphone input XLR
  • LOW CUT: 75Hz, 12dB/octave high pass filter
  • Frequency Response:

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