Tegeler Audio Vari Tube Recording Channel | Tube Channel Strip with Pultec-Style EQ | Opto and Vari-Mu Compression for Studio Recording

Tegeler Vari Tube Recording Channel  (Tegeler TEG-VTRC)

Tube Channel Strip

Tegeler Audio Vari Tube Recording Channel is a professional tube channel strip that combines a microphone preamp, passive equalizer, and compressor in a single rackmount unit. Built for studio recording of vocals and instruments, it gives engineers a flexible signal path that can range from clean and direct to warm and vintage, while adding musical EQ and smooth dynamic control.

Tegeler Audio Vari Tube Recording Channel Competitive Differences

• Combines variable-color tube preamp, passive Pultec-style EQ, and both opto and vari-mu compression in one unit
• Supports switchable EQ and compressor routing, sidechain EQ processing, line-level processing, and stereo linking with a second unit

Tegeler Audio Vari Tube Recording Channel Description

The Tegeler Audio Vari Tube Recording Channel is designed for project and professional studios that want boutique analog tone without relying entirely on large-format consoles. Its Class-A tube circuit uses 3 triodes and a transformer-balanced design to deliver rich recording character, while the microphone preamp lets users shape the input response from clean and controlled to thicker and more vintage-sounding.

The passive equalizer is based on the Pultec principle and is voiced for broad, musical shaping rather than surgical correction. It allows engineers to add soft high-end air, enhance vocal body, and reduce troublesome midrange buildup. With selectable low-cut, low-mid boost, mid-cut, and high-boost frequencies, the unit offers a wide range of tonal control for voices, guitars, bass, saxophone, and other solo sources.

Compression is a major strength of the unit. The optical compressor provides smooth, open, and program-adaptive gain control that keeps levels stable while preserving microdynamics. The vari-mu compressor adds a more assertive tube character that helps sources stay present in dense mixes without sounding harsh. Both compression types can be used together, giving the channel strip a wider sonic range from transparent control to warm vintage-style density.

The signal path is built for flexible studio use. The EQ can be placed before or after the compressor, and it can also be switched into the compressor sidechain for frequency-dependent compression and de-essing. A dedicated line input transformer allows processing of already recorded material at line level, and two units can be linked for stereo operation when needed.

Vari Tube Recording Channel Features

• Tube channel strip for professional studio recording
• Class-A circuit with 3 triodes
• Microphone preamp, passive EQ, and compressor in one unit
• Transformer-balanced inputs and output
• Internal power supply with toroidal transformer
• Stepped potentiometers
• Microphone preamp with transformer, 48V phantom power, and phase switch
• Variable preamp character from clean to fat
• High-impedance instrument input
• Passive Pultec-style EQ
• Low-cut filter: 80 to 160 Hz
• Low-mid boost frequencies: 80, 120, 200, 300, 500, 700, 1000 Hz
• Mid-cut frequencies: 200, 300, 500, 700 Hz, 1, 1.5, 2, 3, 4, 5, 7 kHz
• High boost frequencies: 1.5, 2, 3, 4, 5, 7, 10, 12, 16, 20, 24 kHz
• Opto compressor with program-adaptive attack and release timing
• Vari-mu tube compressor
• Soft-knee compression
• Opto and vari-mu compressors can be used at the same time
• EQ can be switched before or after the compressor
• EQ can be switched into the compressor sidechain
• Separate line input transformer for line-level signal processing
• Two units can be linked for stereo operation

Vari Tube Recording Channel Specifications

• Product Type: Tube Channel Strip
• Circuit Type: Class-A
• Tubes: 3 Triodes
• Frequency Response: 20 Hz to 22 kHz
• Maximum Mic Input Level: +12 dBu
• Maximum Line Input Level: +20 dBu
• Maximum Instrument Input Level: +6 dBu
• Line Input Impedance: 2.4 kOhms
• Instrument Input Impedance: 100 kOhms
• Output Impedance: < 600 Ohms
• Maximum Output Level: +24 dBu
• Dynamic Range: 95 dB
• Phantom Power: True 48V
• Power Requirement: 230V~/50Hz or 115V~/60Hz
• Fuse: 500 mA Slow-Blow
• Maximum Power Consumption: < 25 W
• Rack Size: 3U
• Dimensions: 18.98 x 9.84 x 5.2 in (483 x 250 x 132 mm)

What's In The Box

• Tegeler Audio Vari Tube Recording Channel