10 Best Mastering Compressor of December 2025

• High-voltage Class A 12AX7 vacuum-tube mic/instrument preamplifier
• Gain, Tube Drive, HP filter, -20 dB pad, phantom power, polarity reverse3-band EQ features variable-Q on mid-band w/ peak/shelving on high- and low-bands
• Variable VCA compressor with Auto Attack/Release and Soft/Hard Knee
• 3-band EQ with parametric mid and semi-parametric, shelving/peak low and high bands
• Instrument, line, and mic inputs
• 1U 19” rack-mountable, rugged steel chassis

PreSonus

• Professional Tube-Based Microphone/Line Recording Channel.
• Three independent World-Class modules: tube mic pre, switchable optical/tube compressor, and tube EQ
• Warm, Smooth, and Silky Sound Quality. Precision Detented Potentiometers.
• Selectable VU Metering (mic pre out, compressor out, or Main Out).

ART

• Dual RCA-type inputs
• Dual RCA-type outputs
• Ground terminal
• Power: 12V DC (Adapter included)
• Dimensions: 1.75 H x 4.2 W x 3.5 inches D (44.5 x 107 x 89mm)

ART

• Size: 1/3 x 1 EIA rack unit
• Connectors: 1/4" Unbalanced I/O (TS, or TRS forconsole inserts); L/R in & out, TRS sidechain
• Controls and Displays
• Operating Level: 0.775 Vrms (0 dBu) nominal
• Noise: Less than -90dBu over 20-20kHz

FMR

• Co-developed with Antares Audio Technologies to bring together everything you need for a polished, modern vocal sound, in the studio or live
• The rackmount processor includes a mic preamp, compression, de-essing, mic & tube modeling and Antares’ famous Auto-Tune pitch correction
• Perfect for live performance, house of worship or studio use, the TA-1VP brings your vocal sound into the 21st century
• A high-quality XLR microphone input is provided on the TA-1VP front panel, with phantom power for condenser mics
• Balanced TRS input and outputs are located on the rear panel, including a Double Track out for simulating doubled vocals
• Processing is laid out in simple-to-use blocks, each with dedicated buttons and meters to show exactly what’s being done to the signal
• The Auto-Tune module can be set for any level of pitch correction, in a variey of user-selectable scales

Tascam

• Variable Input Impedance For Flexible Microphone Voicing
• Selectable Plate Voltage
• Discrete Class-A Input Microphone Preamplifier
• Low Noise at Lower Gain Settings
• Extremely Low Total Harmonic Distortion

ART

• Dual Channel or Linked Stereo Operation
• 1/4-Inch TRS Side Chain Inserts
• 1/4-Inch TRS And XLR Balanced Inputs
• 1/4-Inch TRS And XLR Balanced Outputs
• Stereo Mode Balance Control

ART

• Error 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
• Inputs: ¼” TRS and female XLR (pin 2 Hot)
• Outputs: ¼” TRS and female XLR (pin 2 Hot)

dbx

• Over Easy or classic hard knee compression with dB's ultra-musical program dependent attack and release times
• Compression ratio variable from 1:1 through infinity: 1 to -1:1
• Precise RMS gain reduction and input/output meter displays with calibration control for different operating levels
• True RMS level detection
• Exclusive Infinity+ compression using negative ratios

dbx

• Switchable IKA (Interactive Knee Adaptation) program-adaptive compression circuitry combines the advantages of hard-knee and soft-knee characteristics
• IRC (Interactive Ratio Control) expander/gate circuitry for virtually inaudible noise suppression
• Switchable dynamic Enhancer for brilliant, lively audio even with heavy compression
• IGC (Interactive Gain Control) peak limiting circuitry combines clipper and program limiter for reliable and inaudible protection against signal peaks
• Switchable Low contour filter prevents "pumping" due to low-frequency dominated compression

Behringer