Item# DBX166XSV
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$259.00259.0 each
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General Specifications

Frequency Response 20Hz - 20kHz, +0/-0.5dB, Typical 3dB points are 0.35Hz and 110kHz, unity gain
System Performance Noise <-90dBu, 22Hz to 22kHz, no weighting, unity gain
System Performance THD+N Typically <0.04%; Any Amount of Compression Up to 40dB@1kHz
System Performance SMPTE IMD Typically <0.08% @ +10dBu (15dB Gain reduction)
Compressor Threshold Range -40dBu to +20dBu
Compressor Threshold Characteristic Selectable OverEasy® or Hard Knee
Compression Ratio Variable; 1:1 to Infinity:1; 60dB Maximum Compression
Compressor Attack Time Variable program-dependent; 3ms to 340ms for 15dB gain reduction
Compressor Release Rate Variable program-dependent; 200dB/Sec to 3dB/Sec
Expander Gate Threshold Range Off to +15dBu
Expander Gate Expansion Ratio 10:01
Expander Gate Maximum Depth >60dB
Expander Gate Attack Time <500μs (from Maximum Depth)
Expander Gate Release Rate Adjustable, 30ms to 3sec (to 30dB attenuation)
Peakstop® Limiter Threshold Range 0dBu to +20dBu
Peakstop® Limiter Gain Adjustment Range Variable; -20dB to +20dB
Peakstop® Limiter Interchannel Crosstalk <-80dB, 20Hz to 20kHz
Peakstop® Limiter Dynamic Range >115dB
Stereo Coupling True RMS Power Summing™
Operating Voltage 100 VAC 50/60Hz; 120VAC 60Hz; 230 VAC 50/60 Hz
Power Consumption 15 Watts Maximum
Operating Temperature 32°F to 113°F (0°C to 45°C)

Audio Specifications

Inputs (1/4” TRS Phone XLR) Floating Balanced; XLR
Input Impedance >50kΩ balanced, >25kΩ unbalanced
Input Maximum Level +24dBu, Balanced or Unbalanced
Input CMRR >40dB at 1kHz, typically >55dB
Sidechain Insert (1/4” TRS Phone) Normalled
Sidechain Insert Impedance Tip = >10kΩ (Input) Ring = 2kΩ (Output)
Sidechain Insert Maximum Level +24dBu
Outputs (1/4” TRS Phone XLR) Floating Balanced; XLR
Outputs Impedance 120kΩ balanced, >60Ω unbalanced
Outputs Maximum Level +21dBu, > +20dBm (into 600Ω), balanced or unbalanced
Output (XLR) Maximum Level (Unalanced) +20dBm; <0.3% THD
Output (XLR) Noise <-90dBu, Unweighted (20Hz - 20kHz)


Weight 5.05 lb (2.29 kg)
Height 1.75 in (4.5 cm)
Depth 6.75 in (17.15 cm)
Width 19 in (48.26 cm)
  • 1 x dbx 166xs dual compressor/limiter/gate
  • 1 x AC power cord
  • 1 x Operation manual
  • 1 x Registration card
  • 4 x Rack mount screws and washers
Adding a dbx® 166xs Compressor/Limiter/Gate to your live sound rig or studio gives you more dynamic control to help create a more polished, professional sound. Having compression in your audio chain gives you the ability to smooth out uneven levels, add sustain to guitars and fatten up your drums. It also makes it easy to bring vocals to the front of your mix - adding greater clarity and making them stand out from the surrounding instruments. To protect your expensive amps and speakers the PeakStop® limiter provides an absolute ceiling for peak excursions or large transients that could damage your equipment. dbx knows compressors...after all we invented them! The 166xs is the latest in a long line of the world's most successful compressors from the inventors of the technology. Its patented Overeasy® compression technology provides smooth and musical performance while the AutoDynamic™ attack and release controls, found only on dbx compressors, puts great sound within easy reach. The 166xs can operate in stereo or dual-mono modes, has true RMS power summing and features quality XLR and 1/4" TRS inputs and outputs. It cuts no corners on visual feedback with gain reduction metering and easy-to-read backlit switches.

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