DBX 676 Studio Quality Rackmount Tube Preamp Compressor Limiter

 676  DBX 

 Rackmount Tube Preamp 

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 Semi-Parametric EQ

• 1/4” and XLR Inputs and Outputs

• Front Panel Instrument Input

• Side Chain Insert

• Optional Digital Output Card

Specifications:

• 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)

SALE: $1285.00

FREE S&H in continental US (e-mail for international / offshore USA rates)