DBX 676 Tube Mic Pre Channel Strip


Discover the DBX 676 – a Tube Mic Pre Channel Strip for peak performance. Class-A vacuum tube, vintage VU meter, and compressor/limiter design. Perfect for recording and live performances.

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Discover the DBX 676 Tube Mic Pre Channel Strip – an innovation that embodies the best of more than 40 years of dbx dynamic processing. With a class-A vacuum tube preamp at 250 volts, a vintage VU meter and a compressor/limiter inspired by the dbx162SL, the 676 offers unparalleled audio quality. The 3-band parametric EQ with sweepable mids adds even more versatility, while the military-grade construction and VU metering make it the perfect channel strip for recording and live performances.


  • Microphone preamplifier: Female XLR, balanced/unbalanced, 1.9 kΩ impedance
  • Instrument Input: 1/4″ Jack, unbalanced, 500 kΩ impedance
  • Outputs (Preamp & Compressor/Limiter): Male XLR and 1/4″ Jack, balanced/unbalanced
  • Compressor Sidechain Insert: 1/4″ Jack, unbalanced, 1 kΩ impedance (output), 50 kΩ impedance (input)
  • Vacuum Tube Type: 12AU7A / ECC82
  • Frequency Response (Microphone Input): 20 Hz to 50 kHz, +0/-1dB, 40 dB gain
  • Frequency response (Instrument Input): 30 Hz to 70 kHz, +0/-1dB, unity gain
  • THD + Noise (Mic In to Line Out): 0.25% typical at 0 dBu out, 1 kHz, 40 dB gain
  • EQ Low frequency: 100 Hz, low-pass shelving filter
  • EQ High frequency: 10 kHz, High-pass shelving filter
  • EQ Center Frequency: Sweepable from 100 Hz to 8 kHz
  • Compressor Threshold Range: -40 dBu to +20 dBu
  • Limiter Threshold Range: -4 dBu to +22 dBu (out)
  • Power Supply: Universal switching power supply, 100 – 240 VAC, 50/60 Hz, 20 watts
  • Dimensions: 3.5 “H X 19 “W X 8 “D (88.9mmH X 482.6mmW X 203.2mmD)
  • Weight: 8.1 lbs (3.7 kg)


DBX is a well-known and renowned brand specializing in the production of professional audio products. The company is known for its high-quality equipment used in recording studios, concert halls and live events around the world.
DBX has a wide range of products, including signal processors, equalizers, compressors and digital audio interfaces.


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