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DBX 386 Dual Tube Microphone Preamp

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Product Description

The dbx 386 Silver Series dual channel tube mic preamp puts the best of both worlds into one affordable package by combining the warmth of the vacuum tube with dbx Type IV digital conversion.
The 386 boasts such features as +48V phantom power, a phase invert switch, a low cut filter, and S/PDIF (coax) and AES/EBU digital outputs. For convenience in the studio the 386 features a front panel 1/4" instrument input, as well as a mic/line switch, 12 segment LED meters, and a 20 dB pad. The rear panel includes mic and line I/Os, word clock sync I/O, and digital outputs. The 386 adds four selectable sample rates from 44.1kHz, to 96kHz, selectable dithering & noise shaping, separate analog & digital output controls to this already impressive list of features.

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.

dbx 386 FEATURES

  • Two channel tube microphone preamplifier
  • Selectable 96 kHz, 88.2 kHz,48 kHz, or 44.1 kHz 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
  • 60 dB of gain and +/- 15 dB of output gain
  • Selectable mic/line switch
  • 48 volt phantom power
  • 20 dB pad
  • 75 Hz low cut filter
  • Phase reverse
  • 12 segment LED analog/digital

Product Specifications

dbx 386 Specifications

    Microphone Input
  • Connectors: Female XLR Pin 2 Hot
  • Type: Electronically balanced/unbalanced
  • Impedance: 1.0k ohm
  • Maximum Input Level: -9 dBu or +19 dBu with 20 dB pad engaged
  • CMRR >40dB, Typically 55dB
  • Equivalent Input Noise: -128 dBu with a 150 ohm source load
    Line Input (Rear Panel)
  • Connector: TRS 1/4" Jack
  • Type: Electronically balanced/unbalanced Impedance: 20k ohm unbalanced, 40k ohm balanced Maxium Input Level: +21dBu balanced or unbalanced CMRR: >40dB, typically 55dB Gain (Drive Control) -15dB to +15dB
    Instrument Input (Front Panel)
  • Connector: TR 1/4" Jack
  • Type: Unbalanced Impedance: 470K ohm Maximum Input Level: +21dBu unbalanced
    Analog Outputs
  • Connector: Male XLR Pin 2 Hot and TRS 1/4"
  • Type: Servo-balanced/unbalanced Impedance: Balanced 120 ohm, unbalanced 60 ohm Maximum Output Level: >+21 dBu, >+20 dBm (into a 600 ohm load)
    Digital Outputs
  • Connectors: XLR for AES/EBU, RCA for S/PDIF
  • Impedance: 110 ohm for AES/EBU, 75 ohm for S/PDIF
    Word Sync Input/Output
  • Connectors: BNC
  • Input Impedance: 75 ohm 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: <10Hz to 150kHz THD + Noise: 0.04% typical at +4dBu out, 1kHz, 30 dB gain Interchannel Crosstalk: Typically -100dB, 20Hz to 20kHz
    Analog to Digital Conversion
  • Type: dbx Type IV(TM) A/D Conversion System
  • Sample Rate: 96, 88.2, 48, or 44.1kHz selectable Wordlength: 24, 20, or 16 bit selectable Dither Type: TPDF, SNR2, or none Noise Shape: Shape 1, Shape 2, or none Output Format: S/PDIF or AES/EBU
    Power Supply
  • Operating Voltage: DO: 120VAC 60Hz, 100VAC 50/60Hz
  • EU: 230VAC 50/60 Hz Power Requirements 20 Watts
    Physical
  • Weight: 6.89 lbs (3.17kg)
  • Dimensions: 1.75'' x 7.75'' x 19'' (4.5cm x 19.7cm x 48.5cm)

dbx engineers are constantly working to improve the quality of their products. Specifications are, therefore subject to change without notice.

Helpful Info about the Manufacturer
Phone:  801-568-7660 Warranty:  2 Years
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