Millennia TCL-2 Twin Topology 2 Channel Opto Compressor/Limiter

SKU: MLTCL2 MFR: TCL-2
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Key Features

  • Achieve pristine sound quality with the Millennia TCL-2's twin topology design.
  • Enjoy versatile dynamic control using the continuously adjustable compression ratio.
  • Utilize the opto compressor/limiter for smooth, musical gain reduction on any source.
  • Easily link channels with the stereo linking switch for balanced stereo imaging.
  • Switch between solid-state and tube circuits for varied sonic textures on recordings.
  • Precisely shape your audio with adjustable attack and release, enhancing signal processing.
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Special Order?Estimated to Ship: 08/08/2025
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Millennia TCL-2 Specifications

  • Number of Channels

    2

  • Inputs

    2x XLR

  • Outputs

    2x XLR

  • Threshold Range

    Infinite to +20 dBu, Continuously Adjustable

  • Maximum Output Level

    > + 32 dBu

  • Maximum Input Level

    + 30 dBu

  • Output Gain Control

    Continuously Adjustable

  • Frequency Response

    +0 / -3 dB sub 2 Hz to beyond 100 kHz

  • Noise

    -87 dBu (SS), -82 dBu (VT) (20 Hz - 22 kHz)

  • Attack Range

    2 ms to 100 ms, Continuously Adjustable

  • Release Range

    100 ms to 3.0 S, Continuously Adjustable

  • Compression Ratio Range

    Minimum 1.4 : 1, maximum 30 : 1
    Continuously Adjustable

  • THD + Noise

    < .01 %, typ .003 % (VT or SS) (20 Hz - 30 kHz)

  • Common Mode Rejection Ratio

    > 50 dB, Typ > 70 dB (10 Hz - 20 KHz, 100 mV C.M.)

  • Dynamics Bypass For Each Channel

    Yes

  • Meter Gain Reduction Or VU Selection

    Yes

  • Stereo Linking Switch

    Yes

  • Input Impedance

    25k Ohms

  • Minimum Output Load Impedance

    300 Ohms (SS), 1k Ohms (VT)

  • Recommended Minimum Load

    600 Ohms (SS), 3k Ohms (VT)

  • Output Impedance

    < 5 ohms (SS), < 300 ohms (VT)

  • Twin Topology Compressor Amplifiers

    Switch In: Pure Class-A Discrete J-FETs
    Switch Out: Pure Class-A Triode Tubes

  • Power Consumption

    55 watts maximum

  • Power Requirements

    Selectable: 100-120, 200-240 V ac, 50/60 Hz

  • Dimensions (W x L x H)

    19 x 12.5 x 3.5" (482.60 x 317.50 x 88.90mm)

About Millennia TCL-2

Control Dynamics With Total Signal Integrity
• Two paths to perfection with Twin Topology
• Stereo optical compressor/limiter with unprecedented sonic purity & integrity
• All triode 300 V vacuum tube signal path or...
• All discrete J-FET solid state signal path
• Both topologies are entirely transformerless, high voltage, pure Class A
• Minimalist design: only one active stage in the audio path
• Large meters: switchable for VU or Gain Reduction
• Constructed for demanding professional applications
• Ultra-Premium components throughout
• Gold relays, connectors, switches, tube sockets
• Silver Teflon power wiring
• Mogami Neglex OFC audio wiring

Options
• Musically rich vintage vacuum tubes

Not Quite What You Need
• STT-1 Origin Twin Topology Recording Channel

Less is Everything
The minimalist design of TCL-2 puts just one single active gain stage in the entire audio signal path. Through a painstaking process that has included hundreds of hours of critical listening, TwinCom's active stage has been optimized as input buffer, EQ amplifier and output driver. Millennia's minimal circuit topology preserves the integrity of the input signal to a degree that's impossible using multiple active stages (up to seven in some designs).

Transformerless Topologies
In Millennia's Twin Topology designs, both solid state and tube circuit paths are entirely transformerless. The TCL-2 is designed to preserve sonic purity even as it controls dynamic range. Their unique circuit design avoids audio transformers, realizing the musicality of pure Class A gain control and optical compression without introducing coloration, character or "vibe."

Pure Dynamic Control
Whether you choose the euphonic spatiality of tubes or the absolute accuracy of solid state, TwinCom is designed to smooth out dynamic extremes without announcing its presence in any way. Optical compression and limiting is the most musically neutral analog dynamics processing they have found. They are not just labeling TCL-2 "mastering grade:" it is the dynamics processor of choice in top mastering studios around the globe.

Digital Delivery Demands Total Clarity
Data compression algorithms (MPG, AC3, DTS etc.) are unable to distinguish signal from noise, so preserving absolute signal integrity through the recording and production process is critical to communicating the artist's intention and individuality. The recording and mastering process entails amplifying the original source by as much as 1000:1. Coloration or distortion become part of the signal: once lost, sonic information can never be recovered. Millennia's unique circuit designs amplify and adjust the original input signal with an absolute minimum of alteration, controlling dynamics in way that seems to have part of the original performance, not a pasted-on "effect."

You Can Pay More, You Can't Spend Less
Initial purchase price is never a design target at Millennia Media. They aim to maximize return on investment and minimize lifetime cost. Developed in a rigorously empirical process whose goal is absolute accuracy and sonic realism, TCL-2 is accurate enough for the most critical recordings the choice of recording and mastering engineers at the top of the profession. This is a tool you can build a career around, one that will remain essential no matter how far your sonic explorations take you. Acquiring a TwinCom is a step off the upgrade treadmill: a step that will ultimately save you much more than your initial investment.

Product Documents

User Manual

Key Features

  • Achieve pristine sound quality with the Millennia TCL-2's twin topology design.
  • Enjoy versatile dynamic control using the continuously adjustable compression ratio.
  • Utilize the opto compressor/limiter for smooth, musical gain reduction on any source.
  • Easily link channels with the stereo linking switch for balanced stereo imaging.
  • Switch between solid-state and tube circuits for varied sonic textures on recordings.
  • Precisely shape your audio with adjustable attack and release, enhancing signal processing.

What's in the box:

  • Millennia TCL-2 Twin Topology 2 Channel Opto Compressor/Limiter
  • UL Approved Power Cord (110 V Units Only)
  • Owner's Manual
  • Millennia 1 Year Limited Warranty