Heritage Audio MIX BUDDY 19-Input Small Format Mixer

Shape Any Source with the Heritage Audio TUBESTRIP All-Tube Channel Strip

The Heritage Audio TUBESTRIP is an all-tube recording channel designed to take on vocals, instruments, and line-level sources with rich tone shaping, dynamic control, and classic analog color. Combining a tube preamp, inductor-based EQ, Vari-Mu compression, optical tube compression, and de-essing capability in one 3U unit, the TUBESTRIP delivers a complete front-end signal path for tracking and sculpting professional recordings.

• All-tube signal path from input to output
• Tube-based preamp with unique Morph tone-shaping capabilities
• Up to 60 dB of preamp gain for microphone, line-level, and DI instrument sources
• Triode, Pentode, and UltraLinear preamp modes for flexible tonal character
• Inductor-based EQ inspired by a classic English studio design
• Vari-Mu compressor for vibey dynamic control and added energy
• Optical tube compressor for smooth leveling and classic vocal density
• De-essing option with frequency adjustment for sibilance control
• Custom-made transformers and inductors for rich analog tone
• Output attenuator helps control level into recording interfaces or downstream gear
• Universal built-in power supply

Pure Tube Power

The TUBESTRIP combines four essential processors into one convenient all-tube recording channel. Packed with carefully selected tubes, custom-made transformers, and custom inductors, it is designed to deliver an exciting, evocative sound that brings recordings to life. Rather than feeling like separate processors placed in a box, the TUBESTRIP is built as one coherent signal-shaping instrument.

Morph Tube Preamp

The signal path begins with a transformer-coupled tube preamp offering up to 60 dB of voltage gain. The Morph section allows users to choose and blend between different preamp personalities. Triode mode emphasizes warmth and smoothness, Pentode mode adds bite and attitude, and UltraLinear mode sits between the two for a balanced response.

The preamp is designed to handle microphone, line-level, and DI instrument sources, making it suitable for vocals, guitars, bass, keyboards, drums, room mics, and acoustic instruments. A dedicated output attenuator after the preamp section allows precise level control before feeding the EQ, compressors, or recording device.

Type 69 Inspired Inductor EQ

The inductor-based EQ section is inspired by a legendary English design from the late 1960s. Its musical layout gives engineers and producers a fast way to sweeten, soften, enlarge, or focus a sound depending on the source and the mix goal.

Vari-Mu Compression

The Vari-Mu compressor provides dynamic control while adding thickness, excitement, and movement. Based on Heritage Audio’s LANG P.Lane design with Seawell Mod inspiration, this compressor is designed to maintain transients and let the signal breathe, even under heavier compression. A switchable routing option allows the order of the EQ section and Vari-Mu compressor to be changed for different tonal results.

Optical Tube Compression and De-Essing

The optical compressor section adds smooth leveling, density, and peak control, making it especially useful for vocals and other dynamic sources. It can also be used as a natural-sounding de-esser with adjustable frequency control, helping reduce sibilance in a transparent and musical way.

Final Output Control

The output section provides attenuation from -14 dB to +6 dB, allowing users to fine-tune the level feeding the next piece of gear or audio interface. This makes it easier to enjoy the TUBESTRIP’s onboard processing without overloading the destination input.

A Complete Channel Strip for Tracking and Sculpting

Vocals, drums, guitars, bass, keys, room microphones, and acoustic instruments can all benefit from the TUBESTRIP’s flexible signal path. With one unit combining tube gain, EQ, compression, de-essing, and output control, it gives engineers and producers a powerful analog front end for shaping sources at the recording stage.

SPECIFICATIONS

General

• Product Type: All-tube channel strip
• Format: 3U rackmount
• Signal Path: All tube from input to output
• Weight: 7.6 kg / 16.8 lb
• Power Supply: Universal built-in power supply

Preamp

• Preamp Type: Transformer-coupled tube preamp
• Gain: Up to 60 dB
• Source Compatibility: Microphone, line-level, and DI instrument sources
• Morph Modes: Triode, Pentode, UltraLinear
• Preamp Output Attenuator: Included

EQ

• EQ Type: Inductor-based EQ
• Design Inspiration: Type 69-style English studio EQ
• Application: Tone shaping, sweetening, softening, enlarging, and focusing sources

Compression

• Compressor 1: Vari-Mu tube compressor
• Compressor 2: Optical tube compressor
• De-Esser: Optical compressor can be used for de-essing with frequency adjustment
• Routing: Switchable EQ and Vari-Mu compressor order

Output

• Output Control Range: -14 dB to +6 dB
• Purpose: Level matching into downstream gear or audio interface inputs

Components

• Tubes: 4 carefully selected tubes
• Tube Types: NOS tubes for preamp and Vari-Mu sections, JJ tubes for output stage
• Transformers: 4 custom-made transformers
• Transformer Locations: Main input, main output, Vari-Mu input, Vari-Mu output
• Inductors: Custom-made inductors

We are Musictoner Musictoner

Since 1958, Chuck Levin’s Musictoner has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.