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DBX 676 Tube Mic Preamp and Channel Strip

 

  • Dale #:

    DBX-676

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    Not in Stock - Reserve Yours

  • This item is not in stock and needs to be ordered from the manufacturer. Your payment will be charged after completing checkout. We will strive to ship as soon as possible, pending availability.

Description

The 676 represents all of the best of dbx's more than 40 years of dynamics processing. The 676 offers a pristine high-voltage, Class-A tube preamp section that runs on 250 volts, so your signal can be as crystal clean or dirty as you need it to be. The 676 also incorporates the compressor/limiter... Read More

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Description

The 676 represents all of the best of dbx's more than 40 years of dynamics processing. The 676 offers a pristine high-voltage, Class-A tube preamp section that runs on 250 volts, so your signal can be as crystal clean or dirty as you need it to be. The 676 also incorporates the compressor/limiter design from the highly-sought after dbx162SL, as well as a 3-band parametric EQ with sweepable mids. The 676 provides audio professionals with the perfect channel strip for recording and live applications alike with its military-grade build and vintage-inspired controls, VU metering and state-of-the-art optional digital output card.

Features:

  • Class-A Vacuum Tube Preamp with High Voltage Gain
  • High-Visibility Vintage VU Meter
  • Compressor designed from the dbx162SL
  • 3-Band Parametric EQ
  • 1/4" and XLR Inputs and Outputs
  • Front Panel Instrument Input
  • Side Chain Insert
  • Optional Digital Output Card

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Product Specs

Mic Preamp ConnectorFemale XLR Pin 2 Hot; Electronically balanced/unbalanced
Mic Preamp Input Impedance1.9 k
CMRR>85 dB from 20 Hz to 3 kHz,>70 dB from 3 kHz to 20 kHz
Instrument Input ConnectorTip-Sleeve _” Jack
Input Type(instrument) Unbalanced
Instrument Input Impedance500 k
Max Input(instrument) +21dBu unbalanced
Preamp Insert ConnectorTip-Ring-Sleeve _”, RF filtered
Preamp Insert TypeUnbalanced, Tip = send, Ring = return
Line Outputs (Preamp / Compressor/Limiter) ConnectorMale XLR and Tip-Ring-Sleeve _” (Pin 2 and Tip hot)
Line Outputs (Preamp / Compressor/Limiter) TypeServo-balanced/unbalanced
Line Outputs (Preamp / Compressor/Limiter) ImpedanceBalanced 30 , unbalanced 15
Line Outputs (Preamp / Compressor/Limiter) Maximum Output Level> +21 dBm (into a 600 ohm load)
Compressor Sidechain Insert ConnectorTip-Ring-Sleeve _”, RF filtered
Compressor Sidechain Insert TypeUnbalanced, Ring = output, Tip = input
Compressor Sidechain Insert Impedance1 k (output), 50 k (input)
Vacuum Tube Type12AU7A / ECC82
Vacuum Tube Grid Power Supply+250V DC
Vacuum Tube Heater Power Supply+12V DC
Frequency Response (Mic 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
THD + Noise (Instrument In to Line Out)0.2% typical at 0 dBu out, 1kHz, unity gain
Equivalent Noise LevelTypically> -123 dBu with a 150 source load, 22 Hz to 22 kHz
Noise FloorMic Insert to Comp Output: <-93 dBu, unity gain, EQ flat and no gain reduction
Preamp Function Switches/Controls: Instrument InputSelects between microphone XLR input and front panel _” instrument input
Preamp Function Switches/Controls: +48VSends +48 VDC through 6.81 k resistors to pins 2 and 3 of the microphone input
Preamp Function Switches/Controls: 20dB PadAttenuates the microphone input by 20 dB
Preamp Function Switches/Controls: Polarity InvertReverses pins 2 and 3 of the microphone input XLR
Preamp Function Switches/Controls: 80 Hz Low CutEnables an 80 Hz, 12 dB/octave high pass filter in the microphone and instrument signal path
Preamp Function Switches/Controls: Gain Control Range- to +55 dB for Microphone Input; - to +40 dB for Instrument Input
Preamp Function Switches/Controls: Post Tube Attenuation- to 0 dB
Preamp Function Switches/Controls: Peak IndicatorIlluminates RED when the Preamp is within 3 dB of clipping
EQ Low Frequency100 Hz, Low-pass shelving filter
EQ High Frequency10 kHz, High-pass shelving filter
EQ Mid FrequencySweepable from 100 Hz to 8 kHz
EQ Function Switches/Controls: NarrowSelects the “Q” of the MID Frequency EQ. “OUT” position Q = 0.9; “IN” position Q = 2.9
EQ Gain(All Bands) Sweepable from Ð15 to +15 dB
Compressor Threshold Range-40 dBu to +20 dBu
Compressor Threshold CharacteristicSelectable OverEasyª or Hard Knee
Compressor RatioVariable 1:1 to :1; 60 dB maximum Compression
Compressor Attack/Release ModesSelectable Manual or Auto
Compressor Manual Attack TimeScalable program-dependent; Typically 400 dB/msec to 1 dB/msec
Compressor Manual Release TimeScalable program-dependent; Typically 4000 dB/sec to 10 dB/sec
Compressor Auto Attack TimeProgram-dependent, typically 15 ms for 10 dB, 5 ms for 20 dB, 3 ms for 30 dB
Compressor Auto Release TimeProgram-dependent, typically 120 dB/sec
Compressor Output Level Control Range-20 dB to +20 dB
Compressor Peak IndicatorIlluminates RED when the Compressor/Limiter is within 3 dB of clipping
Limiter Typedbx PeakPlusª
Limiter Threshold Range-4 dBu to + 22 dBu (off)
Limiter Ratio :1
Limiter Attack and ReleaseProgram-dependent
Power SupplyUniversal switch-mode
Operating Voltage100 Ð 240 VAC, 50/60 Hz
Power Requirements20 Watts
FuseT2.5AL 250V
Turn-On TimeApproximately 2 seconds
Dimensions3.5”H X 19”W X 8”D (88.9mmH X 482.6mmW X 203.2mmD)
Weight8.1 lbs (3.7 kg)
Shipping Weight11.0 lbs (5.0 kg)

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