Dbx 676
ABOUT THE PRODUCT
The DBX 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
- Tube Microphone Preamp Channel Strip
- DBX 676
- Mic Preamp Connector : Female XLR Pin 2 Hot; Electronically balanced/unbalanced
- Mic Preamp Input Impedance : 1.9 kΩ
- CMRR : >85 dB from 20 Hz to 3 kHz, >70 dB from 3 kHz to 20 kHz
- Instrument Input Connector : Tip-Sleeve ¼” Jack
- Input Type : (instrument) Unbalanced
- Instrument Input Impedance : 500 k Ω
- Max Input : (instrument) +21dBu unbalanced
- Preamp Insert Connector : tip-Ring-Sleeve ¼”, RF filtered
- Preamp Insert Type : Unbalanced, Tip = send, Ring = return
- Line Outputs (Preamp & Compressor/Limiter) Connector : Male XLR and Tip-Ring-Sleeve ¼” (Pin 2 and Tip hot)
- Line Outputs (Preamp & Compressor/Limiter) Type : Servo-balanced/unbalanced
- Line Outputs (Preamp & Compressor/Limiter) Impedance : Balanced 30 Ω, unbalanced 15 Ω
- Line Outputs (Preamp & Compressor/Limiter) Maximum Output Level : > +21 dBm (into a 600 ohm load)
- Compressor Sidechain Insert Connector : Tip-Ring-Sleeve ¼”, RF filtered
- Compressor Sidechain Insert Type : Unbalanced, Ring = output, Tip = input
- Compressor Sidechain Insert Impedance : 1 kΩ (output), 50 kΩ (input)
- Vacuum Tube Type : 12AU7A / 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 Level : Typically > -123 dBu with a 150 Ω source load, 22 Hz to 22 kHz
- Noise Floor : Mic Insert to Comp Output: <-93 dBu, unity gain, EQ flat and no gain reduction
- Preamp Function Switches/Controls: Instrument Input : Selects between microphone XLR input and front panel ¼” instrument input
- Preamp Function Switches/Controls: +48V : Sends +48 VDC through 6.81 kΩ resistors to pins 2 and 3 of the microphone input
- Preamp Function Switches/Controls: 20dB Pad : Attenuates the microphone input by 20 dB
- Preamp Function Switches/Controls: Polarity Invert : Reverses pins 2 and 3 of the microphone input XLR
- Preamp Function Switches/Controls: 80 Hz Low Cut : Enables 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 Indicator : Illuminates RED when the Preamp is within 3 dB of clipping
- EQ Low Frequency : 100 Hz, Low-pass shelving filter
- EQ High Frequency : 10 kHz, High-pass shelving filter
- EQ Mid Frequency : Sweepable from 100 Hz to 8 kHz
- EQ Function Switches/Controls: Narrow : Selects the “Q” of the MID Frequency EQ. “OUT” position Q = 0.9; “IN” position Q = 2.9
- EQ Gain (All Bands) :Sweepable from –15 to +15 dB
- Compressor Threshold Range : -40 dBu to +20 dBu
- Compressor Threshold Characteristic : Selectable OverEasy™ or Hard Knee
- Compressor Ratio : Variable 1:1 to ∞:1; 60 dB maximum Compression
- Compressor Attack/Release Modes : Selectable Manual or Auto
- Compressor Manual Attack Time : Scalable program-dependent; Typically 400 dB/msec to 1 dB/msec
- Compressor Manual Release Time : Scalable program-dependent; Typically 4000 dB/sec to 10 dB/sec
- Compressor Auto Attack Time : Program-dependent, typically 15 ms for 10 dB, 5 ms for 20 dB, 3 ms for 30 dB
- Compressor Auto Release Time : Program-dependent, typically 120 dB/sec
- Compressor Output Level Control Range : -20 dB to +20 dB
- Compressor Peak Indicator : Illuminates RED when the Compressor/Limiter is within 3 dB of clipping
- Limiter Type : dbx PeakPlus™
- Limiter Threshold Range : -4 dBu to + 22 dBu (off)
- Limiter Ratio : ∞:1
- Limiter Attack and Release : Program-dependent
- Power Supply : Universal switch-mode
- Operating Voltage : 100 – 240 VAC, 50/60 Hz
- Power Requirements : 20 Watts
- Fuse : T2.5AL 250V
- Turn-On Time : Approximately 2 seconds
- 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)
- Shipping Weight : 11.0 lbs (5.0 kg)
- Euroguitar Reference : 64892
- DBX 676
- Mic Preamp Connector : Female XLR Pin 2 Hot; Electronically balanced/unbalanced
- Mic Preamp Input Impedance : 1.9 kΩ
- CMRR : >85 dB from 20 Hz to 3 kHz, >70 dB from 3 kHz to 20 kHz
- Instrument Input Connector : Tip-Sleeve ¼” Jack
- Input Type : (instrument) Unbalanced
- Instrument Input Impedance : 500 k Ω
- Max Input : (instrument) +21dBu unbalanced
- Preamp Insert Connector : tip-Ring-Sleeve ¼”, RF filtered
- Preamp Insert Type : Unbalanced, Tip = send, Ring = return
- Line Outputs (Preamp & Compressor/Limiter) Connector : Male XLR and Tip-Ring-Sleeve ¼” (Pin 2 and Tip hot)
- Line Outputs (Preamp & Compressor/Limiter) Type : Servo-balanced/unbalanced
- Line Outputs (Preamp & Compressor/Limiter) Impedance : Balanced 30 Ω, unbalanced 15 Ω
- Line Outputs (Preamp & Compressor/Limiter) Maximum Output Level : > +21 dBm (into a 600 ohm load)
- Compressor Sidechain Insert Connector : Tip-Ring-Sleeve ¼”, RF filtered
- Compressor Sidechain Insert Type : Unbalanced, Ring = output, Tip = input
- Compressor Sidechain Insert Impedance : 1 kΩ (output), 50 kΩ (input)
- Vacuum Tube Type : 12AU7A / 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 Level : Typically > -123 dBu with a 150 Ω source load, 22 Hz to 22 kHz
- Noise Floor : Mic Insert to Comp Output: <-93 dBu, unity gain, EQ flat and no gain reduction
- Preamp Function Switches/Controls: Instrument Input : Selects between microphone XLR input and front panel ¼” instrument input
- Preamp Function Switches/Controls: +48V : Sends +48 VDC through 6.81 kΩ resistors to pins 2 and 3 of the microphone input
- Preamp Function Switches/Controls: 20dB Pad : Attenuates the microphone input by 20 dB
- Preamp Function Switches/Controls: Polarity Invert : Reverses pins 2 and 3 of the microphone input XLR
- Preamp Function Switches/Controls: 80 Hz Low Cut : Enables 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 Indicator : Illuminates RED when the Preamp is within 3 dB of clipping
- EQ Low Frequency : 100 Hz, Low-pass shelving filter
- EQ High Frequency : 10 kHz, High-pass shelving filter
- EQ Mid Frequency : Sweepable from 100 Hz to 8 kHz
- EQ Function Switches/Controls: Narrow : Selects the “Q” of the MID Frequency EQ. “OUT” position Q = 0.9; “IN” position Q = 2.9
- EQ Gain (All Bands) :Sweepable from –15 to +15 dB
- Compressor Threshold Range : -40 dBu to +20 dBu
- Compressor Threshold Characteristic : Selectable OverEasy™ or Hard Knee
- Compressor Ratio : Variable 1:1 to ∞:1; 60 dB maximum Compression
- Compressor Attack/Release Modes : Selectable Manual or Auto
- Compressor Manual Attack Time : Scalable program-dependent; Typically 400 dB/msec to 1 dB/msec
- Compressor Manual Release Time : Scalable program-dependent; Typically 4000 dB/sec to 10 dB/sec
- Compressor Auto Attack Time : Program-dependent, typically 15 ms for 10 dB, 5 ms for 20 dB, 3 ms for 30 dB
- Compressor Auto Release Time : Program-dependent, typically 120 dB/sec
- Compressor Output Level Control Range : -20 dB to +20 dB
- Compressor Peak Indicator : Illuminates RED when the Compressor/Limiter is within 3 dB of clipping
- Limiter Type : dbx PeakPlus™
- Limiter Threshold Range : -4 dBu to + 22 dBu (off)
- Limiter Ratio : ∞:1
- Limiter Attack and Release : Program-dependent
- Power Supply : Universal switch-mode
- Operating Voltage : 100 – 240 VAC, 50/60 Hz
- Power Requirements : 20 Watts
- Fuse : T2.5AL 250V
- Turn-On Time : Approximately 2 seconds
- 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)
- Shipping Weight : 11.0 lbs (5.0 kg)
- Euroguitar Reference : 64892
