MCM Electronics

Dual Tube Preamplifier with Digital OutMCM Part #: 555-20660  |  DBX Professional Part #: 386

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Dual Vacuum Tube Preamp

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 a +48V phantom power, a phase invert switch, and low cut filtering; and also includes digital outputs in both AES/EBU, and S/PDIF formats.

Product Description

    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
Mic Preamp Connector Female XLR Pin 2 Hot; Electronically balanced/unbalanced
Mic Preamp Input Impedance 330O
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 150O 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 Connectors Male XLR Pin 2 Hot and TRS 1/4"
Output Type Servo-balanced/unbalanced
Output Impedance Balanced 120O, unbalanced 60O
Max Output >+21 dBu, >+20 dBm (into a 600O load)
Digital Output Connector XLR for AES/EBU, RCA for S/PDIF
Digital Output Impedance 110O for AES/EBU, 75O for S/PDIF
Word Sync I/O Connectors BNC
Word Sync Input Impedance 75O terminated by internal jumper
Word Sync Input 96, 88.2, 48, or 44.1kHz word clock
Word Sync Output 96, 88.2, 48, or 44.1kHz word clock
Output Level -15dB to +15dB
Line Switch Selects between microphone and line inputs
Mic Preamp Phantom Power +48V
Pad Switch 20dB pad
Phase Invert Switch Reverses pins 2 and 3 of the microphone input XLR
Low cut Switch 75Hz, 12dB/octave high pass filter
Frequency Response (analog) <10Hz to 75kHz
THD+Noise 0.35% typical at +4dBu out, 1kHz, 40 dB gain
Interchannel Crosstalk Typically –80dB, 20Hz to 20kHz
A/D Converter dbx Type IV 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
Digital Output S/PDIF or AES/EBU
Digital Output Dynamic Range 107dB typical, A-weighted, 22kHz bandwidth
Operating Voltage DO: 120VAC 60Hz, 100VAC 50/60Hz; EU: 230VAC 50/60Hz
Power Consumption 35W
Dimensions 1.75'' x 7.75'' x 19'' (4.5cm x 19.7cm x 48.5cm)
Unit Weight 6.89 lbs (3.17kg)
Reference 0dBu = -16dFS, 0dBu-0.775Vms

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Package Specifications & Dimensions
Hazardous:No
RoHS Comp:No
Warranty:365 days
Need to Return?
Length:0 in.
Width:0 in.
Height:0 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 040

PDF Reference
Datasheet

Requires Adobe Acrobat Reader.

Mfr. Info

DBX Professional Logo
Mfr. Name:DBX Professional
Mfr. Part Number:386