Tube Summing Mixer

Many grieve the sound of the era of analog mixer consoles but don’t want to waive the modern conveniences like total recall.

The Tube Summing Mixer gives you the opportunity to bring the sound of analog mixing with the benefits of a digital workflow to the comfort of your own studio.

The analog signal path, tubes and matching transformers, are responsible for processing the signals. The result is a typical analog sound; open & defined yet warm. The mix is not trapped in the box but opens up the whole room.

With 2 × 20 channels, there are enough inputs available to glue together the most demanding mixes. If 40 inputs aren’t enough for you, several Tube Summing Mixers can be cascaded to increase the input count. As you can use more than one Tube Summing Mixer together, nothing stands in the way of your surround mixes.

To ensure the exact reproducibility of a mix, the Tube Summing Mixer is equipped with a stepped output switch instead of a potentiometer. This allows a practical reduction at -3dB increments.

If you wish to insert mono signals into the mix, just insert the signal into the lower TRS jack. The mono signal is then automatically distributed to both channels simultaneously making it appear in the phantom center of the mix.

Key Features

2 × 16 balanced inputs via 4 sub D connectors (XLR or TRS via adapter cable, Tascam® layout)
2 × 4 balanced TRS inputs (Neutrik®stereo jack)
Internal mix bus with up to +22 dBu
Active Tubes and Transformer output stage
Illuminated VU meters
Output Level switch in -3db increments

In the world of professional audio production, achieving a rich, cohesive mix often requires more than just digital processing. The Tegeler Audio Tube Summing Mixer offers an exceptional analog solution for engineers and producers seeking to enhance their mixes with warmth, depth, and clarity that only tube summing can provide. This device is designed for those who understand that the final blend of individual tracks into a stereo mix is a critical step in shaping the sound, and it delivers a sonic character that elevates your projects beyond what purely digital summing can achieve.

The Tegeler Audio Tube Summing Mixer addresses the challenge of preserving the natural dynamics and musicality of your recordings while combining multiple inputs. Unlike conventional digital summing, this mixer employs high-quality tube circuitry that imparts subtle harmonic richness and smoothness, resulting in mixes that feel more vibrant and alive. With a frequency response ranging from 20 Hz to 40 kHz, it ensures the full audio spectrum is captured and reproduced accurately, meaning your bass remains tight and your highs crisp without harshness. This wide bandwidth guarantees that no detail is lost, allowing you to maintain the integrity of your original recordings.

One of the standout features of this summing mixer is its robust dynamic range of 110 dB or greater. For the user, this translates into an incredibly low noise floor and outstanding headroom, so every nuance in your mix is preserved without distortion or unwanted artifacts. The maximum input level of +22 dBu and maximum output level of +24 dBu mean the device can handle professional line-level signals with ease, ensuring compatibility with a wide range of professional audio equipment. Additionally, the input impedance of at least 10 kΩ and output impedance under 600 Ω provide optimal signal transfer and minimize any loss or coloration, maintaining the purity of your audio signals throughout the summing process.

Practicality is also at the forefront of this design. The Tegeler Audio Tube Summing Mixer is housed in a compact 2 U rackmount chassis, measuring 88.1 mm in height, 483 mm in width, and 250 mm in depth, making it a perfect fit for standard studio racks without consuming excessive space. Operating on either 230 V~/50 Hz or 115 V~/60 Hz power supplies and consuming less than 25 watts, it is efficient and versatile for use in studios worldwide. The inclusion of a 500 mA slow-blow fuse ensures reliable protection against power surges, safeguarding your investment during extended sessions.

Whether you are mixing music, post-production audio, or broadcast content, the Tegeler Audio Tube Summing Mixer integrates seamlessly into your workflow. It allows you to combine multiple tracks through an analog summing stage that enhances your mixes with the signature warmth and depth that analog circuits provide. This makes it an indispensable tool for engineers who demand the highest fidelity and sonic quality in their productions, whether working with large multi-track sessions or smaller projects needing that extra polish.

Investing in the Tegeler Audio Tube Summing Mixer means choosing a piece of equipment built with precision and professional-grade components, delivering consistent, high-quality sound that stands out in any production environment. With its proven reliability, exquisite tonal character, and thoughtful engineering, this mixer is a powerful addition to any serious audio setup. Experience the difference that analog tube summing can make in your mixes and bring your creative vision to life with confidence and clarity.