DBX 166XL Compressor / Limiter / Gate, made in China

Link: dbxpro

Most compressor/gates provide less than musical compression, coupled with gating that swallows transients—or closes early, cutting off decay and reverb tails. The superb engineering in the 166XL ensures that both its compression and gating provide versatility and excellent sonic performance in situations where other compressor/gates typically produce undesirable processing artifacts.

When using the 166XL’s Attack and Release controls, artists and engineers will find that the center settings deliver classic dbx compression, while the full control range produces voicings that extend from slow “leveling” to aggressive “peak” limiting.The 166XL’s advanced gate circuitry uses a completely new, program-dependent timing algorithm to produce ultra-smooth release characteristics—even with complex signals, such as voice or reverb decays. dbx engineers went on to take advantage of the wide dynamic range and high precision of the dbx V1 VCA to design in an extra-wide threshold range and ensure top gating performance for each application.

Separate precision LED displays for gain reduction, compression threshold and gate threshold allow quick, accurate setup, while the 166XL’s intuitive operation lets users easily smooth uneven levels, add sustain to guitars, squash drums or tighten up mixes. In Stereo couple mode, the Channel 1 controls become Master controls, and Channel 2 follows precisely to ensure a rock solid stereo image—even with high amounts of compression, through True RMS Power Summing™. Professionals and newcomers alike will find that the 166XL sets up rapidly and musically the first time it is used, especially with the Auto attack and release function. Advanced applications are now easy, with the 166XL’s full sidechain functionality, and the ability to use either hard knee or OverEasy® compression algorithms. Add to this already impressive list of features the venerable PeakStop™ limiter, and you’ve got a strong finisher, every time.Features
  • Goof proof operation to smooth uneven levels, add sustain to guitars, fatten drums or tighten up mixes 
  • New gate timing algorithms ensure the smoothest release characteristics 
  • Program-adaptive expander/gates 
  • Great sounding dynamics control for any type of program material 
  • Separate precision LED displays for gain reduction, compression threshold and gate threshold allow quick, accurate setup 
  • Stereo or dual-mode operation 
  • Balanced inputs and outputs on 1/4" TRS and XLR 
  • Side Chain insert 
  • Classic dbx® "Auto" mode

Cut Sheet-English
Owner's Manual-English


Input Connectors1/4" TRS and XLR, Floating Balanced; XLR: Pin 2 hot Phone: Tip Hot HI
Input Impedance>50kΩ balanced, >25kΩ unbalanced
Max Input+24dBu, Balanced or Unbalanced
CMRR>40dB at 1kHz, typically >55dB
Sidechain1/4" TRS Phone, Normalled: Ring = Output (send); tip = Input (return)
Sidechain ImpedanceTip = >10kΩ (Input), Ring = 2kΩ (Output) 
Sidechain Max Input Level+24dBu
Output Connectors1/4" TRS phone and XLR floating balanced, XLR: Pin 2 and Tip Hi 
Output Impedance120Ω balanced, 60Ω unbalanced
Max Output+21dBu,>+20 dBm into 600Ω, balanced or unbalanced
Frequency Response20Hz - 20kHz; +0, -0.5dB, Typical 3dB points are 0.35Hz and 110kHz, unity gain
Noise<-90dBu, 22Hz to 22kHz, no weighting, unity gain
THD+NoiseTypically <0.04%; Any Amount of Compression Up to 40dB@1kHz
IMDTypically <0.08% SMPTE @ +10dBu (15dB Gain reduction)
Compressor Threshold Range-40dBu to +20dBu
Compressor Threshold CharacteristicSelectable OverEasy® or hard knee
Compressor RatioVariable; 1:1 to Infinity:1; 60dB Maximum Compression
Compressor Attack TimeVariable program-dependent; 3ms to 340ms for 15dB gain reduction
Compressor Release TimeVariable program-dependent; 200dB/Sec to 3dB/Sec
Expander/Gate Threshold RangeOFF to +15dBu
Expander/Gate Ratio10:1
Expander/Gate Max Depth>60dB
Expander/Gate Attack Time<500µs (from Maximum Depth)
Expander/Gate Release TimeAdjustable, 30ms to 3sec (to 30dB attenuation)
Limiter Threshold Range0dBu to +20dBu 
Gain Adjustment RangeVariable; -20dB to +20dB
Interchannel Crosstalk<-80dB, 20Hz to 20kHz
Dynamic Range>115 dB
Stereo CouplingTrue RMS Power Summing™
Power Consumption15 Watts Maximum
Operating Temperature0°C to 45°C (32°F to 113°F)
Dimensions1.75" x 19" x 6.75" (4.45 cm x 48.2 cm x 17.15 cm)
设备重量5.05 lb (2.29 kg)
Shipping Weight7.20 lb (3.27 kg)
Reference0dBu = 0.775Vrms