Does Analog Summing Worth It?

Paul Taylor
5 min readDec 17, 2023
Does Analog Summing Worth It?

Introduction: Decoding the Analog Mixing

You’ve pondered the question: Does Analog Summing Make a Difference? You’re not alone — thousands share your curiosity. Let’s embark on a journey to decode the mysteries of analog summing, from its impact on your sound to its role in the wider musical landscape.

custom analog summing mixers
https://vintagemaker.net

Short Version Answer: The Sum Bus and the Safe Zone

In the realm of analog summing, the SUM BUS emerges as a key player, providing a sanctuary known as Headroom. This safe zone preserves instrument focus and position in the panorama field, resulting in a wide, deep 3D sound. How? Proper gain staging, coupled with gentle analog harmonic distortion, captures fundamental harmonics in the SUM BUS, culminating in a master stereo track.

Amplifying Harmonics: The VCA Amplifier Effect

Moving beyond the basics, the VCA amplifier takes center stage. As your mix journeys through the DAW interface preamp or transformer amp, this amplifier elevates and magnifies fundamental harmonics, infusing excitement and saturation. The result? A warm analog color character that defines the sonic signature of your music.

Main Rule: Analog Separation for 3D Sound

Delving into the core principle of analog summing, we uncover the significance of channel count. The more channels engaged (4, 8, 16, 32, or beyond), the greater the analog separation in the panorama field. The outcome? A sonic landscape that stretches wider and deeper, crafting a captivating 3D sound.

Exploring Limitless Potential: Analog Summing Unleashed

The potential of analog summing knows no bounds, restricted only by the output channels of your interface. For those seeking an extended version, we offer insights into the operation of an analog mixer, transitioning from the comfort of the digital domain to the uncharted territory of the analog world.

Transitioning to the Analog World: A New Dimension

Stepping into the analog realm signifies a shift into a new dimension. Success demands an understanding of analog workings and familiarity with studio laws. With simplicity and a touch of humor, mastering the basics becomes the key to gaining practical experience.

Pro Techniques: Elevating Your Mix Like a Pro

Sending your mix through a summing mixer undoubtedly enhances its quality, but to achieve superior results, a professional touch is essential. Learn the techniques that transform your music from merely sounding better to attaining a level of sonic excellence reserved for the pros.

The Physics Behind Analog Summing: A Sonic Alchemy

The answer lies in simple physics. Analog summing, by accommodating harmonic elements, avoids the pitfalls of digital processing. As you export your project, digital rounding occurs, leading to a noticeable final mix collapse. Analog summing, devoid of 0s and 1s, ensures the preservation of complex sinusoidal voltages in their original form.

Preserving Complex Sinusoidal Voltages: The Analog Benefits

Complex sinusoidal voltages, housing rich harmonics, transients, saturation, and more, find their sanctuary in the Analog Summing Mixer. Free from the constraints of digital processing, these elements remain intact, contributing to the authentic character of your music.

Sweet Spot: The Art of Subtle Harmonic Distortion

By strategically boosting the input gain, a realm of subtle and pleasant analog harmonic distortion unfolds. The Analog Summing Headroom, rooted in physics, accommodates transients and harmonic distortion, preventing collapse and delivering warmth, transparency, and spatial depth. The distinctive ‘record-like’ quality emerges as instruments find their perfect place in the mix.

Maximizing Your Summing Mixer: The Key to Outstanding Results

Merely utilizing your summing mixer at a basic level is not enough. Understanding its intricacies and wielding it at a professional level is the path to extraordinary results. Imagine a tool in your hands — you must master it to unlock its full potential.

Unveiling the Secrets: Crucial Aspects of Analog Mixing

Ignorance of analog mixing principles may hinder your pursuit of a unique and authentic Big Studio Analog Sound. Dive into crucial aspects, from the SUM BUS and analog headroom to maintaining instrument integrity and generating fundamental gentle analog harmonic distortion.

First Stage / Part 1: SUM BUS Analog Summing Inputs — Analog Sanctum

Explore the foundational stage of analog summing — the SUM BUS. This circuit, developed over years with user feedback in mind, is the post-input resistor network. It provides a safe haven called Headroom, ensuring instrument integrity, preventing mix collapse, and generating fundamental gentle analog harmonic distortion.

Analog Headroom Protection: Ensuring Instrument Integrity

The Analog Headroom, fortified by the SUM BUS, safeguards instrument integrity, separation in the panorama field, and the preservation of harmonics, transients, and saturation.

analog harmonics

Analog Summing Versatility: No Input Limit

Dispelling myths, analog summing imposes no input limit from a mixing perspective. It seamlessly sums together 8, 16, 32, 64, up to 96 input channels. Free from floating-point mathematical processor calculations, analog summing offers enhanced separation for depth, where channel count matters.

See more: https://vintagemaker.net

Mastering Subtle Analog Harmonic Distortion: Finding the Sweet Spot

The quest for the Sweet Spot involves placing instruments in the panorama field strategically. By gradually increasing the volume, you discover the point where harmonic distortion emerges, creating a harmonious blend.

Rule: Boosting for Pleasure

A simple boost of your DAW output level unravels pleasant, gentle distortion as SUMMING INPUTS breach their nominal level, uncovering the sought-after Sweet Spot.

Understanding Gain Staging: Akin to Focusing a Camera Lens

Gain staging, akin to focusing a camera lens, becomes a crucial aspect of analog mixing. By setting audio volume optimally for subsequent processors, you achieve balanced and saturated sound for recording.

Tool Selection: Crafting Your Sound Palette

Choose your tools wisely, whether it’s your DAW interface’s Mic Preamp, transformer amp/amplifier, line-level inputs, or outboard preamps. Each tool imparts a distinct color to your sonic palette.

Amplifying Harmonics and Adding Excitement

And with this signal amplification, you achieve the following:

  • Harmonics amplification — amplifying the fundamental harmonics generated on passive summing (sum bus) inputs.
  • Exciting and adding harmonics — creating both even and odd harmonics using a transformer pre-amp or tube amp.
  • Pre-amp Plugin Emulations: Many of my clients have achieved excellent results with the well-known UAD Apollo Unison preamps. These pre-amp emulations have surprisingly delivered outstanding results, to the point where you can hardly tell on the first listen that it’s an emulation; it sounds soo good!

Visit Custom Analog Studio Instruments: https://vintagemaker.net

--

--

Paul Taylor

Paul Taylor – founder of Vintage Maker, former producer, low-current engineer, composer, musician – piano player.