API® Summing
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Get the punchy sound of API console summing — exclusively for LUNA.
The sound behind five decades of landmark albums, API consoles are legend for good reason. From Stevie Wonder's Talking Book and Fleetwood Mac's Rumours, to The Cure's Pornography and Radiohead's Hail to the Thief — the mid‑forward punch of API's classic analog consoles breathe aggressive, multi‑dimensional color into your mixes.
Developed in partnership with API, exclusively for LUNA Recording System, the API Summing Extension emulates the 2520 op‑amp and custom output transformer-based summing amps found in legendary API consoles over the past 50 years — giving your LUNA mixes all the attitude and tone of API's esteemed analog desks.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
Genuine API Summing for 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.
Getting it Right
UA 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 — in contrast to the Neve 80 series pure current summing. UA's team of engineers throughly 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.
“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, Dan+Shay)Customer Reviews
Y. Sagarra Rodriguez
April 1, 2023
Maravilloso
Merece las 5 estrellas aunque me gustaría usarlo en otros DAW.
Read MoreV. Silva
March 31, 2023
Beautiful
I just didn't give it 5 stars because it's impossible to use it in another DAW. But the sound is incredible, what it does in the...
Read MoreP. Oliveira
March 3, 2023
Unbelievable!
It's really incredible what this plugin can do. I was really skeptical since I'm used to real analog summing but it sounds amazing. Best buy in months and if you need to choose between the...
Read MoreR. Vargas
January 24, 2023
Brining everything forward with punch
I was skeptical about this one as it wasn’t as dramatic effect as the Neve summing but flipping back and forth, I can hear that API punch and clarity everyone talks about. Can’t vouch...
Read MoreJ. Whitesides
January 24, 2023
Complete the Sum
This is a fantastic addition to completing what I'd call the API trifecta. Having the API channel strips, pre-amps, EQs, Compressors without the API Summing in LUNA is doing yourself a...
Read MoreE. Morgan
January 16, 2023
Just brilliant.
This is a brilliant pluging on the stereo main. Glues everything together and adds weight and punch. I currently have this on the main of a session that's got a Zeppelin vibe,...
Read More -
Features
The first authentic emulation of API analog summing
Adds power, clarity, and mid-forward punch to your mixes
Per-bus Headroom and Trim controls for professional tone sculpting over your entire mix
Sum individual channels or your entire mix through API's hallowed bus or master summing modules
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Customer Reviews
API Summing
Y. Sagarra Rodriguez
Maravilloso
Merece las 5 estrellas aunque me gustaría usarlo en otros DAW.
V. Silva
Beautiful
I just didn't give it 5 stars because it's impossible to use it in another DAW. But the sound is incredible, what it does in the low end I couldn't find in any other plugin… It's worth it and I can't live without it in my mixes anymore
P. Oliveira
Unbelievable!
It's really incredible what this plugin can do. I was really skeptical since I'm used to real analog summing but it sounds amazing. Best buy in months and if you need to choose between the Neve and the API plugin I'd stay with the API first, for a cleaner and punchier feel. If you feel like to expand your options the Neve will be a good adition later on.
R. Vargas
Brining everything forward with punch
I was skeptical about this one as it wasn’t as dramatic effect as the Neve summing but flipping back and forth, I can hear that API punch and clarity everyone talks about. Can’t vouch for how authentic it is compared to the hardware but if people with API console experience dig it, it works for me.
J. Whitesides
Complete the Sum
This is a fantastic addition to completing what I'd call the API trifecta. Having the API channel strips, pre-amps, EQs, Compressors without the API Summing in LUNA is doing yourself a disservice. I've become a Summing convert, for both the API and the Neve. Whatever the mojo is, it's a much needed additional tool in the mixing war-chest for that added extra 1% to put you over the top.
E. Morgan
Just brilliant.
This is a brilliant pluging on the stereo main. Glues everything together and adds weight and punch.
I currently have this on the main of a session that's got a Zeppelin vibe, especially the drums, and A/B'ing it in/out at unity gain you can 100% hear the difference it makes to the overall mix.
Glad I grabbed this one!S. Lopez
If you switched to Luna
Then Grab It along with the Neve, simple.
K. Houghton
I’m a summing convert!
I never used this approach in a daw but now hear a great difference on many songs and now I will have to redo many songs I thought we’re finished
Give it a shot and you’ll understand .
Happy mixing!A. Filip
Smooth Sound
Very good on percussive material and it’s really useful for gain-staging your tracks! You can hear something’s changing only when you just put in on your bus
J. Tofte
Glues it all together
It’s like loctite for audio. Great job UA!
T. Laja
API Quality
I used in fx and mix channels. Very good and easy .
J. Lowman
only for people new to DAW.
i'm not about to switch daws for a summing plugin. although i'm not even sure if it would even integrate as easily as it does with luna. COLLAB WITH APPLE FOR A LOGIC PRO X summing SLOT PLEASEEEEEEEE!!!
M. Verblakt
Stunning
I loved the Neve summing option in LUNA. That's the reason why I obtained the API summing too. This creates the all American console sound. Love it!
W. Krol
API sound
Open wide sounding API summing - and working natively, Great job
P. REVERT
Why ?
Why it's not avalaible for all DAWs users, not only LUNA ? Such a shame guys.
A. Lopes dos Santos
Game Changing System
The combination of the Summing and Tape Extensions inside Luna represent a game changing solution, I believe. The effect this system has on the final result of my mixes is simply amazing.
If I had the chance to have jsut one of the now available summing options, I’d take the API, which is less “colored” than the Neve - that might work wonders on some recordings, of course. The API has the typical “bite” we all associate with their products, but also provides lots of clarity and, to my taste, has a gorgoeus effect on the low end frequencies of the mix.
I’ve never heard/felt that “velvety” low end on my mixes, before using this combo (API Summing and ATR-102 Tape), inside Luna.
I work exclusively ITB and this setup has just made me yet more confident that, today, it’s absolutely possible to remain ITB, from start to finish of my work, with no regrets. Congrats, folks!E. Souza
Totally Wow
Excellent, I love it
J. KIM
wow
wow!!!!
U. Khan
Excellent aggressive, mid-forward sound great on drums and guitar
This is a welcome addition to LUNA summing. This is a very nice, aggressive sounding emulation of the 2520 op-amp. This really shines on guitars and drums. Don't be afraid to drive it. Sounds great in a mix.
P. Jonsson
LOVE IT
LOVE THE SOUND OF API SUMMING
