DBX 386 Dual Vacuum Tube Preamp with Digital Out

  • 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
SKU: 691991400186 Category:

This product has been discontinued

Description

The Silver Series dbx 386 dual vacuum tube preamp with digital out 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 dbx 386 dual vacuum tube preamp with digital out lives up to the innovative dbx® standards.

The mic preamps developed by dbx are so widely used and respected by sound engineers that the name of one of our most popular preamps – the 286 – has become a universally used term that means “mic preamp.” Our mic pre’s set the standard in the broadcast and studio worlds by providing sound engineers all the processing they need for their mics.

Recommended for: Studio.

Features

DBX 386 Dual Vacuum Tube Preamp with Digital Out 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

DBX 386 Dual Vacuum Tube Preamp with Digital Out Specifications:

Mic Preamp ConnectorFemale XLR Pin 2 Hot; Electronically balanced/unbalanced
Mic Preamp Input Impedance330Ω
Mic Preamp max input level-9 dBu or +11 dBu with 20 dB pad engaged
CMRR>40dB, Typically 55dB
Mic Preamp Equivalent Input Noise (EIN)Typically -120 dBu with a 150Ω source load, 20Hz to 20kHz BW
Input Connectors(instrument/line) 1/4″ Jack
Input Type(line) Electronically balanced/unbalanced; (instrument) Unbalanced
Max Input(instrument/line) +21dBu balanced or unbalanced
Gain Adjustment Range(drive control) Line/Instrument: -15dB to +15dB; Mic: +30dB to +60dB
Output ConnectorsMale XLR Pin 2 Hot and TRS 1/4″
Output TypeServo-balanced/unbalanced
Output ImpedanceBalanced 120Ω, unbalanced 60Ω
Max Output>+21 dBu, >+20 dBm (into a 600Ω load)
Digital Output ConnectorXLR for AES/EBU, RCA for S/PDIF
Digital Output Impedance110Ω for AES/EBU, 75Ω for S/PDIF
Word Sync I/O ConnectorsBNC
Word Sync Input Impedance75Ω terminated by internal jumper
Word Sync Input96, 88.2, 48, or 44.1kHz word clock
Word Sync Output96, 88.2, 48, or 44.1kHz word clock
Output Level-15dB to +15dB
Line SwitchSelects between microphone and line inputs
Mic Preamp Phantom Power+48V
Pad Switch20dB pad
Phase Invert SwitchReverses pins 2 and 3 of the microphone input XLR
Low cut Switch75Hz, 12dB/octave high pass filter
Frequency Response(analog) <10Hz to 75kHz
THD+Noise0.35% typical at +4dBu out, 1kHz, 40 dB gain
Interchannel CrosstalkTypically –80dB, 20Hz to 20kHz
A/D Converterdbx® Type IV® A/D Conversion System
Sample Rate96, 88.2, 48, or 44.1kHz selectable
Wordlength24, 20, or 16 bit selectable
Dither TypeTPDF, SNR2, or none
Noise ShapeShape 1, Shape 2, or none
Digital OutputS/PDIF or AES/EBU
Digital Output Dynamic Range107dB typical, A-weighted, 22kHz bandwidth
Operating VoltageDO: 120VAC 60Hz, 100VAC 50/60Hz; EU: 230VAC 50/60Hz
Power Consumption35W
Dimensions1.75” x 7.75” x 19” (4.5cm x 19.7cm x 48.5cm)
Unit Weight6.89 lbs (3.17kg)
Reference0dBu = -16dFS, 0dBu-0.775Vms

Additional information

Weight6.89 lbs
Dimensions7.76 × 19 × 1.75 in

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