8×4 TRS IN XLR out Custom Summing Mixer with Mute Switches

8×4 TRS IN XLR out Custom Summing Mixer with Mute Switches

LittleOne Mid Box Summing Mixer
8 In TRS balanced
4 Out TRS/XLR balanced (Main/Monitor)
2x Stereo or 4x Mono switch input 1/2 and 3/4
Mute switch: Input 1, 5/6 and 7/8

STM – Stereo to Mono 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.

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

Build time: 14 Working Weekdays after cleared payment

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Overview

This high-end, custom-built studio controller was engineered for a specific, uncompromising hybrid workflow: combining analog summing, tactile track muting, and multi-preamp routing into a single, seamless system.

Built based on a unique customer (Johannes Lorenz Deutschland) concept and fully optimized for the Antelope Orion Gen4, this unit bridges the gap between your high-end converters, hardware direct outs (such as the Neve 8804), and outboard processing like the WesAudio Rhea compressor. It provides maximum headroom, zero compromise on signal integrity, and minimal insertion loss.

🎛️ Section 1: 8×4 Custom Analog Summing & Monitoring

Engineered to sum core elements with ultra-low insertion loss, allowing your master compressor to utilize its makeup gain for analog character rather than compensating for massive signal drops.

• Input Configuration: 8 Inputs via TRS (balanced), perfectly matched to the Antelope Orion Gen4 line outputs.

  • Channels 1-4 (Mono/Stereo/Mute flexible): Perfect for Kick, Snare, and Bass (with quick switching if you run a stereo bass track).

  • Channels 5-8 (2 x Stereo Pairs): Dedicated stereo inputs for Overheads/Toms and DAW FX returns.

    • Dedicated Mute switches

• Output: PristineTRS and XLR Balanced Out to feed your master compressor or audio interface.

🔌 Section 2: Multi-Preamp Studio Router

An integrated, passive routing matrix designed to manage 7 Preamps + 1 Line Signal (Bass/Guitar DI). Easily route any selected input directly to your high-end A/D converters without repatching cables.

💡 Designer’s Recommendation: Rack vs. Desktop?

Verdict: The Combined 1U/2U Rack Version is the Superior Choice.

While two separate desktop units are possible, one combined rack unit offers massive advantages for this specific setup:

1. Cost-Effective: A single rack enclosure significantly reduces hardware, chassis, and manufacturing costs compared to two separate desktop cases.

2. Workflow Efficiency: Having your Mute switches, summing inputs, and preamp routing matrix on a single front panel streamlines your hybrid workflow.

3. Cable Management: Since you are interfacing with a multi-channel setup like the Antelope Orion Gen4, a rack unit keeps all TRS and XLR cables organized in your studio desk bay.

📐 Specifications

• Design Philosophy: Built from a custom customer concept.

• Compatibility: Fully optimized for Antelope Orion Gen4 and high-end D/A converters.

• Inputs: 8 x TRS Balanced (Summing) + Multi-input Preamp Router.

• Outputs: L/R Balanced XLR Out.

• Circuit Architecture: Pure passive topology with minimal level drop (optimized for high-end Vari-Mu makeup gain up to +15dB).

• Controls: Heavy-duty Mono/Stereo/Mute switches.

• Build: 100% hand-wired, point-to-point custom studio solution.

Selected VISHAY DALE military metal-film resistors
In/Out: Dual Stereo Balanced Discrete Circuit
Output impedance 600-1k ohms balanced
DSUB DB25 Tascam Analog Standard 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.

Custom-built 8×4 TRS to XLR analog summing mixer and preamp studio router. Optimized for Antelope Orion Gen4. Built from a unique customer concept.