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    dbx 386 Dual Tube Microphone Preamplifier

    2-channel tube microphone preamplifier. Selectable dither and noise shaping. Type IV conversion system.

    This product has been discontinued or is no longer sold by SameDayMusic.

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    dbx 286S Microphone Preamplifier


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    Product Rated 8 Out of 10 (9 ratings)

    dbx 386 Dual Vacuum Tube Microphone Preamp with Digital Out Product Description

    The Silver Series 386 dual channel tube mic preamp puts the best of both worlds into 1 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 in" instrument input located on the front panel, as well as the mic/line switch, and 20 dB pad show dbx's 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 you'll agree that the 386 lives up to the innovative dbx standards.


    - 2-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

    About dbx

    More than 25 years ago, a brilliant young engineer named David Blackmer sat at his workbench trying to find something that would make music easier to record. What he came up with changed everything that was known about dynamics processing at the time. Enter the VCA. With the launch of the dbx 160, the music industry sat up and took notice of the company with the 3 lower-case initials: dbx. Further refinements brought more processes and more products. The 165 a few years later would prove another turning point. The advent of OverEasy compression defined the process of threshold sensitive compression. Both the 160 and 165 are still greatly sought after standards that come along all too infrequently. The 160 is now worth many times its original price tag in the used market - if you can find one. The 165A has proved so popular that it is still manufactured today, exactly the same way it was 20 years ago; pretty rare in this industry.

    dbx Professional Products are done for you -- the lunch box, working class musicians, the weekend wedding band, the Grammy-winning engineer, the mega-star, the guys who make music just for the heck of it in the garage in February, the aspiring producer of the month. You endure the uncharitable business of music and carve a life of unusual reward from the ever-challenging industry. It is this heritage, spirit, and character that inspires musicians and every product dbx makes.

    Same Day Music is an authorized dealer of DBX products.

    DBX 386 Dual Vacuum Tube Microphone Preamp with Digital Out Technical Description

    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 in. 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 in. Jack
    Type: Unbalanced
    Impedance: 470K ohm
    Maximum Input Level: +21dBu unbalanced

    Analog Outputs
    Connector: Male XLR Pin 2 Hot and TRS 1/4 in.
    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

    Weight: 6.89 lbs.
    Dimensions: 1.75 x 7.75 x 19 in.

    Same Day Music is an authorized dealer of DBX products.

    User Reviews for dbx 386 Dual Vacuum Tube Microphone Preamp with Digital Out

    Product Rated 8 Out of 10 (9 ratings)

    9 users have rated this product, but no one has reviewed it yet. To rate this item and/or write a review, click the "Rate It" button.

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