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API Summing

API Summing

Get the punchy sound of API console summing — exclusively for LUNA.

  • Easily add power, clarity, and mid-forward punch to your mixes with the first authentic emulation of API analog summing
  • Use per-bus Headroom and Trim controls for subtle tone sculpting over your entire mix
  • Harness the complex nonlinearities and musical clipping that define the API sound
  • Sum individual channels or your entire mix through API's hallowed bus or master summing modules

Runs natively on your macOS or Windows computer without UA hardware. View full system requirements.

Get the Punchy Sound of API Console Summing — Exclusively for LUNA

The sound behind five decades of landmark albums, API consoles are legendary for good reason. From Stevie Wonder's Talking Book to Radiohead's Hail to the Thief, the mid‑forward punch of API's classic analog consoles breathe multi‑dimensional color into your mixes. Developed in partnership with API, exclusively for LUNA Recording System, the API Summing Extension emulates the summing amps found in legendary API consoles, giving your LUNA mixes all the attitude and tone of API's esteemed analog desks.

Add Genuine API Summing to your Mixes

Taking you beyond any summing plug‑in, the API Summing Extension is built into LUNA's mixer, capturing the sonic detail of API's iconic bus channels. This workflow eliminates the need to manage multiple plug‑in windows. Simply push up faders and use the per‑bus Headroom control to add character and dynamic enhancement.

Why API Summing?

When audio sources flow through an API console — specifically the 2520 op‑amp and custom output transformer — random analog nonlinearities work together, producing complex, musical harmonics and transient clipping. These summed signals add punch, depth, and character for a mid‑forward, lively mix.

Explore an End-to-End Emulation of Classic API Desks

We dissected and studied multiple API consoles — pouring over original service manuals and gaining crucial insight into their discrete Class A operation and hybrid voltage/current summing circuitry. Our team of engineers thoroughly emulated all of the nonlinearities and clipping characteristics, plus API console fader taper and pan law, giving you the same chart‑topping results as API's flagship consoles.

What They Say

The API Summing Extension for LUNA really brings your mix forward, giving you that tight and punchy bottom end that we’re all looking for.

Jeff Balding

Taylor Swift, The Eagles, Florida Georgia Line

Frequently Asked Questions

No. These plug-ins run natively on your computer. No UA hardware is required.

Yes, 14-day plug-in demos are available. Find eligible plug‑ins

We provide three activations per license. We support activation on your computer or on an iLok USB key.

For every UAD plug-in that supports native and Apollo/UAD-2 versions, you get a license for both upon purchase, or the option to get it through an upgrade.

Native plug-ins are supported on macOS and Windows systems. See our Native UAD System Requirements article for full system requirements. An iLok account is required for managing your native plug-in licenses. We support iLok USB keys for portability, but one is not required.

Check our Knowledge Base for additional questions

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