Tegeler Tube Summing Mixer | 40 Channel Analog Summing with Tubes | Transformer Output with Stepped Control

Tegeler Tube Summing Mixer  (Tegeler TEG-TSM)

Tube Summing Mixer

Tegeler Tube Summing Mixer is a high-channel-count analog summing mixer designed to bring classic console-style sound into modern DAW-based production environments. By combining an analog signal path with tubes and transformer-balanced outputs, it enhances mixes with warmth, depth, and clarity while maintaining the flexibility of digital workflows.

Tegeler Tube Summing Mixer Competitive Differences

• 40 total inputs (2 × 20) with expandable cascading for larger or surround mixing setups
• Tube-driven summing stage with transformer outputs for enhanced analog depth and mix cohesion

Tegeler Tube Summing Mixer Description

The Tegeler Tube Summing Mixer is built for producers and engineers who want to move beyond purely in-the-box mixing without sacrificing recall and workflow efficiency. It provides the sonic benefits of analog summing—greater width, improved separation, and a more cohesive mix—while integrating seamlessly into digital production setups.

Its analog signal path uses tubes and matched transformers to shape the final mix, delivering a sound that is both open and defined while retaining the warmth associated with classic consoles. This helps mixes feel less constrained and more dimensional, allowing elements to sit more naturally in the stereo field.

With 2 × 20 available input channels, the unit accommodates complex sessions and multi-track stems with ease. For larger productions or surround applications, multiple units can be cascaded to expand the total number of available inputs, making it suitable for demanding studio environments.

Precision control is handled through a stepped output level switch with -3 dB increments, ensuring consistent recall of mix levels between sessions. The mixer also supports flexible input routing, including mono signal handling via TRS inputs that are automatically distributed to the stereo field for proper placement in the mix.

Designed in a 2U rack format with illuminated VU meters and professional connectivity, this summing mixer is a reliable centerpiece for hybrid mixing systems that demand both sonic character and repeatable results.

Tube Summing Mixer Features

• Analog tube summing mixer
• 40 input channels (2 × 20)
• 2 × 16 balanced inputs via 4 Sub-D connectors (Tascam® layout)
• 2 × 4 balanced TRS inputs (Neutrik® stereo jacks)
• Expandable by cascading multiple units
• Internal mix bus with up to +22 dBu headroom
• Tube-based summing stage
• Transformer-balanced output stage
• Stepped output level switch in -3 dB increments
• Illuminated VU meters
• Mono signal compatibility with automatic stereo distribution
• Internal power supply
• 2U rackmount design

Tube Summing Mixer Specifications

• Type: Tube Summing Mixer
• Frequency Response: 20 Hz - 40 kHz
• Maximum Input Level: +22 dBu
• Input Impedance: 10 kOhm
• Output Impedance: < 600 Ohm
• Maximum Output Level: +24 dBu
• Dynamic Range: 110 dB
• Voltage: 230 V~/50 Hz or 115 V~/60 Hz
• Fuse: 500 mA slow-blow
• Maximum Power Consumption: < 25 W
• Dimensions: 3.47 x 19.02 x 9.84 in
• Dimensions: 88.1 x 483 x 250 mm
• Rack Size: 2U

What's In The Box

• Tegeler Tube Summing Mixer