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8×4 Analog Summing Mixer Box for Any 8-Channel DAW Audio – TRS I/O – Universal Interface Compatibility with Steinberg, UAD, Focusrite, MOTU, PreSonus, RME, Apogee, Audient, Behringer, Native Instruments, SSL, Tascam, Avid and so on…

5.00 out of 5 based on 2 customer ratings

Original price was: 299.00 €.Current price is: 239.00 €.

UNIVERSAL 8-CHANNEL ANALOG SUMMING BOX – WORKS WITH ANY DAW INTERFACE!

Pro Tip: Push the instruments into the summing mixer at a higher level until you start hearing a subtle pleasant harmonic distortion. This will add warmth, depth, and better separation to your mix, giving it a more professional, polished sound—just like a finished record. The Headroom provides a safe place for transients, ensuring wide separation, clarity and punch in your mix.

The summing box is compatible with various interfaces such as Steinberg UR824, Focusrite, PreSonus, UAD Universal Audio, MOTU, RME, Apogee, Audient, Behringer, Native Instruments, Solid State Logic (SSL), Tascam, Avid, and many others. Summing for Pro Tools, Logic Pro, Ableton Live, FL Studio, Cubase, Studio One, Reaper, Bitwig Studio, Reason, Digital Performer, Cakewalk by BandLab, Nuendo, Mixcraft, Tracktion Waveform, Samplitude, Ardour, Renoise, GarageBand, LMMS and so on.

Additionally, Synths, Keyboards, Drum Machines, and Samplers can be connected either independently or together with the DAW.

Can’t find the right product? Tell me what you need – I’ll build it for you!

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SOUND CARD?

SELECT STEREO INPUT FOR MIX OR DIRECT OUT (SWITCH)

CUSTOM NAME?

BUILD TIME

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SKU: N/A Categories: Acessories - signal splitter line pad breakout box, Desktop Summing 16 - 24 ch, Desktop Summing 4-8, Desktop Summing 8 -16, Desktop Summing Mixer, Desktop Synth Sampler Keyboard Drum Machine Stereo Mono Analog Mixer, Summing Mixer for UAD Apollo Focusrite Motu

Upgrade your DAW Interface’s Sound Card with 8 Ch Input Passive Summing Mixer and get the warm analog-console-like sound. Stereo Balanced studio grade high quality warm signal path.

STM – Stereo or Mono Input Switch: It provides an extra stable Real Analog Mono Base for your mix (on monos like Kick/Bass/MainVox/Snare and so on), saving precious digital-to-analog (DA) channels (so you don’t waste stereo L/R for a mono instrument), and offers superior separation and 3D depth for the rest of your stereo instruments. This feature turns L/R inputs ‘COMBINED’ (two hard-panned L/R inputs) into an absolutely centered mono signal (1 x stereo to 2 mono). For example, ‘SNARE’ on channel 1 (left), ‘KICK’ on channel 2 (right). Mono instruments in the DAW sequencer (Steinberg cubase, pro tools, flstudio, reaper, logic pro, Ableton etc.) should place the kick hard left, the bass hard on the right, and so on. Stereo instruments: If you don’t use mono channels in your mix, simply turn down all the mono switches, and you’ll have a fully stereo analog summing mixer with panning options available from the DAW. See documentation and audio examples…

Mono Mode Routing from DAW:

In 1: Mono Kick
In 2: Mono Bass
In 3/4: Snare, hi-hats, some percussion → Stereo
In 5/6: Percussion, toms, synth blips, etc. → Stereo
In 7/8: Synths, effects, pads, guitars, piano, vocals, etc. → Stereo
Panning from DAW is available for 3/4, 5/6, and 7/8 stereo inputs.

Stereo Mode Routing from DAW:

In 1/2: Main Stereo tracks → Stereo
In 3/4: Kick, Snare, hi-hats, some percussion → Stereo
In 5/6: Percussion, toms, synth blips, etc. → Stereo
In 7/8: Synths, effects, pads, guitars, piano, vocals, etc. → Stereo
Panning from DAW is available for all stereo inputs.

Input Direct to Output or Input to Mix Switch – Select your desired stereo input from the drop-down menu. ( Choose the stereo input (1/2, 3/4, 5/6, or 7/8) where you’d like the switch to be assigned.)

Enables direct monitoring from your DAW interface by routing channels (by switch) either through the summing mixer (mixer mode) or directly to the main outputs. You don’t have to unplug your interface monitor in everyday work; you can keep it connected at all times to the summing mixer.

Down Position: Input signal is routed to the summing mixer for analog mixing (standard summing operation).
Up Position: Input signal is sent directly to the master outputs at full volume.

Important:

the other summing channels remain active. These channels need to be muted in the DAW.

You can get as many channels and options as you want, so let’s build your gear!

Build time: 10 Working Weekdays after cleared payment

Do not find your summing mixer? Tell me your DAW Interface Type! Do not find your Gear? Don’t worry! Just inform me about your requirements!

Selected Studio grade VISHAY DALE military metal-film resistors
In/Out: Stereo Balanced Discrete path
Insertion input resistance: -15dB / -20dB / -25dB (order)
Output impedance 600 -1k ohms balanced
Frequency response: 0-500Khz
Crosstalk 1Khz: -95dB
Signal to Noise rate (SNR): -110dB
TRS wiring: (Tip:HOT/,Ring:COLD/Sleeve:GROUND)
Pure hand made! Hand wired and tested point-to-point!
Laser engraved massive aluminium alloy box

Summing box for Focusrite Scarlett 2i2, Scarlett 2i4, Scarlett 4i4, Scarlett 8i6, Scarlett 18i8, Scarlett 18i20, Clarett 2Pre, Clarett 4Pre, Clarett 8Pre, Clarett+ 2Pre, Clarett+ 4Pre, Clarett+ 8Pre, PreSonus AudioBox USB 96, AudioBox iOne, AudioBox iTwo, Studio 24c, Studio 26c, Studio 68c, Studio 1810c, Studio 1824c, Quantum 2626, Quantum 4848, Quantum HD 2, Quantum HD 8, Universal Audio Apollo Twin X, Apollo Twin MkII, Apollo x4, Apollo x6, Apollo x8, Apollo x8p, Apollo x16, Apollo Solo, Volt 1, Volt 2, Volt 176, Volt 276, Volt 476, MOTU M2, M4, UltraLite-mk5, 828es, 8pre-es, 16A, 24Ai, 24Ao, 1248, 8D, LP32, Monitor 8, Steinberg UR12, UR22C, UR24C, UR44C, UR816C, AXR4, RME Babyface Pro, Babyface Pro FS, Fireface UCX, Fireface UFX II, Fireface UFX+, Fireface 802, ADI-2 Pro FS, Apogee Duet 3, Quartet, Ensemble, Element 24, Element 46, Element 88, Symphony Desktop, Symphony I/O Mk II, Audient iD4, iD14, iD22, iD44, EVO 4, EVO 8, EVO 16, Behringer UM2, UMC22, UMC202HD, UMC204HD, UMC404HD, UMC1820, Native Instruments Komplete Audio 1, Komplete Audio 2, Komplete Audio 6 Mk2, SSL 2, SSL 2+, Tascam US-1×2, US-2×2, US-4×4, US-16×08, Series 102i, Series 208i, Avid Mbox Studio, Mbox 2, Mbox

SOUND CARD?	UAD Apollo, Apogee, Arturia, Behringer, Focusrite, M-Audio, Motu, PreSonus, Prism, RME, Roland, SSL, Steinberg, Tascam, OTHER let me know
SELECT STEREO INPUT FOR MIX OR DIRECT OUT (SWITCH)	1/2, 3/4, 5/6, 7/8
CUSTOM NAME?	YES, NO THANKS
BUILD TIME	12 DAYS

2 reviews for 8×4 Analog Summing Mixer Box for Any 8-Channel DAW Audio – TRS I/O – Universal Interface Compatibility with Steinberg, UAD, Focusrite, MOTU, PreSonus, RME, Apogee, Audient, Behringer, Native Instruments, SSL, Tascam, Avid and so on…

5.00 out of 5 stars

5 out of 5

adam.jr. – May 26, 2025

game-changer for daw and keyboards
Plugged this into my setup, and wow—instant depth and clarity. My mixes feel more alive, with that sweet analog glue. Built solid, easy to use, and plays nice with all my gear. Total game-changer for my home studio!
5 out of 5

peeter.k – May 24, 2025

the magic happened—a wide stereo panorama and a unique analog mojo
I’ll admit, I was a bit skeptical about passive summing at first. But as soon as I started working with it and pushed the inputs, the magic happened—a wide stereo panorama and a unique analog mojo emerged as I drove the inputs a bit over their nominal level.

It did take a little time to find the right signal balance, but analog is much more forgiving, and thanks to the Headroom, I ended up with some truly amazing, real analog-sounding mixes.

I ordered a small summing unit made by VintageMaker, custom-built specifically for my interface (Focusrite 56). Before that, I tried all kinds of plugins, but once I hit a certain number of channels, my mix would collapse. But with analog summing, that just doesn’t happen—at least in theory, there’s no channel limit because everything adds up in analog.

The way I usually work is by sending the instruments into the summing mixer at a higher signal level—up to the point where I hear a slight, pleasant harmonic distortion. This method adds warmth, depth, and better separation to the mix, helping me achieve a much more professional, polished sound—just like a finished record. The headroom provides a safe space for transient peaks, resulting in a wide stereo image, clarity, and punch in the mix. And most importantly, the mix doesn’t fall apart! The separation between instruments is excellent! No wonder the pros say everything used to be better back in the day :)
Just kidding—sort of—but my mixes really do sound much nicer now.

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