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Ntrensik Design LLC · Charlotte, NC
Excellence isn't our standard, it's Ntrensik.
Ntrensik / en·tren·sik / · adjective
Belonging naturally. Essential. Part of the thing itself, not applied to its surface.
Ntrensik, spelled the way it sounds in a dark room at 174 BPM, is the practice of Coy Theobalt: systems consulting, DJ performance, and parametric design, held to one standard. If a detail does not belong, it does not ship.
Since 2006Producing & performing
4 divisionsOne practice, one standard
2 identitiesNtrensik · Coy Du Roi
1 pointOf responsibility, start to finish
The practice
Four disciplines, one standard
Each division stands on its own and earns its own clients. They share one belief, that quality is a property of the work itself, not a finish applied at the end.
01 · Consulting
Ntrensik Consulting
AV engineering, systems integration, and livestream production for venues, studios, houses of worship, and events. Designed on paper first, built clean, and documented so the next engineer is never guessing.
Services & rates → 02 · SoundNtrensik Sound
Two performance identities from one booth. Ntrensik plays drum and bass from the underground side of the collection. Coy Du Roi plays melodic and progressive house. Plus digital tools built for working DJs.
Live, replays & booking → 03 · DesignsNtrensik Designs
Parametric design, printable files, prototypes, and replacement parts for things nobody sells parts for anymore. Home of MITHRA, the multi-camera streaming rig in development.
Files & commissions → 04 · ThreadsNtrensik Threads
A small, deliberate rack. Branded work only, led by the NC Bolt Collection, the North Carolina flag rebuilt as a lightning strike on tees, hoodies, and caps.
Shop the collection →
What Ntrensik means here
Three commitments, built in
Essential, not decorative
Every element has to do work. A system, a set, or a part is finished when nothing can be removed without losing function, not when nothing more can be added.
Documented to last
Signal flow, set structure, and source files are written down and handed over. Work that only its maker can maintain is not finished work.
Made by the person who answers
There is no account team. The person who designs your system, plays your night, or models your part is the person who replies to your email.
About
A background wider than the booth
Coy Theobalt has produced music as Ntrensik since 2006, held two Denver residencies, and now works out of the North Carolina drum and bass scene. The professional background runs in parallel: systems architecture, AV engineering, field application engineering, and enterprise support.
Ntrensik Design LLC is where those threads meet. Consulting clients get an engineer who has stood in the booth on show night. Audiences get a DJ who understands the system he is playing on. Design clients get parts modeled by someone who has had to make discontinued things work again himself.
The name is the brief. Ntrensik means the value is in the thing itself. That is the test every project here has to pass.
Contact
Work with us
We are here for you. Every inquiry lands with the person who will do the work, and each kind of inquiry has its own door, so it gets a useful first reply instead of a queue number.
New projects
Consulting engagements, system designs, livestream builds, and design commissions. Start with the project inquiry, and expect a written quote before any work begins.
Start a project →Bookings
Ntrensik and Coy Du Roi set bookings for clubs, warehouses, festivals, and livestream guest slots, with dates, fees, and technical needs settled in writing.
Book a set →Media & press
Interviews, features, and press inquiries about the practice, the music, or the NC Bolt Collection. Send them to the shop inbox with “Press” in the subject line.
Write to the press inbox →The list
One occasional email for the whole practice. New drops, booking announcements, file releases, and consulting availability, sent before anything is posted publicly. No noise.
Ntrensik Consulting · 01
Systems that hold up on show night
AV engineering, systems integration, and livestream production, from a background spanning systems architecture, field application engineering, and enterprise support. Designed on paper first, built clean, documented in full.
Our services
Four disciplines, one point of responsibility
Audio, video, networks, and control usually arrive as four separate vendors, and on show night each one points at the others. Here the disciplines are designed together under one practice and answered for by one person, which is what makes a system efficient to build, honest to quote, and straightforward to own.
Service
AV Engineering
Signal flow, rig design, and show-critical audio and video for venues, houses of worship, and events. Gain structure, loudspeaker placement, and the unglamorous details that decide whether a system sounds expensive or just is.
Service
Systems Integration
Servers, networks, and control systems that actually talk to each other. Virtualization, media infrastructure, and smart-building pieces integrated into one system with one point of responsibility.
Service
Livestream Production
Multi-camera streaming rigs and restream servers that push one clean feed to Twitch, YouTube, and beyond. OBS builds, camera nodes, sync calibration, and graphics that make a stream look like a broadcast.
Service
AI Integration
Practical AI wired into real workflows. Transcription pipelines, automation, and local models where they belong, sized to the hardware you actually own rather than a cloud bill you did not plan for.
Our expertise
Where the work lands
The same disciplines, tuned to the room they serve. Advances in gear and platforms land monthly, and the design work has to stay ahead of them in every one of these settings.
Sector
Venues & Nightlife
Clubs, bars, and listening rooms where the system is the product. Booth design, loudspeaker systems, and show-critical audio that survives nightly use and still sounds right at capacity.
Sector
Houses of Worship
Sanctuaries and fellowship halls. Intelligibility first, so the back row hears every word, with livestreams that carry the service to the congregation at home.
Sector
Studios & Creators
Recording rooms, streaming setups, and small broadcast builds. Monitoring you can trust, camera and lighting that flatter the room, and a signal chain documented end to end.
Sector
Events & Performance
One-night builds, festivals, and pop-ups. Systems designed to load in fast, run clean under pressure, and come down without a story attached.
Sector
Workplaces & Buildings
Meeting rooms, control systems, and smart-building pieces that people can actually operate. Technology that disappears into the room instead of interrupting it.
Sector
Homes & Homelabs
Media infrastructure, private cloud, and home automation on hardware you own. Server builds, networking, and streaming systems for people who would rather run it themselves.
From $150 / hourConsulting and design time, quoted in writing before work starts.
$1,500 to $4,000Typical project engagements, from a single-room fix to a full livestream build.
Charlotte basedLocal across the Carolinas, traveling for installs and show builds.
Built & run in-house
OBS Studio
MediaMTX
Proxmox VE
Raspberry Pi
Rekordbox
Ableton Live
Tailscale
Featured work
Proof of work
Systems built under this roof, running now, named by the sector they serve.
1.
Venues & Nightlife · Livestream
Multi-platform restream server
One RTMP feed in, clean copies out to Twitch and YouTube at once, with per-destination keys managed from a single config. Built for a weekly DJ livestream and running every show since.
2.
Studios & Creators · Livestream
Three-camera livestream rig
Raspberry Pi camera nodes with PTZ control and a live preview interface, feeding a broadcast-grade main camera over RTSP. Designed to be run by the performer, or handed to a stream engineer.
3.
Homes & Homelabs · Infrastructure
Virtualized media infrastructure
A Proxmox host carrying media libraries, cloud storage, and home automation in separate virtual machines, with Tailscale remote access and a backup path for every service that matters.
Start a project
Tell us about the room
Every engagement follows the same three steps: assess the system as it stands, design the fix on paper, then build it and stand behind it.
Venues with a system that almost works, streamers whose setup fights them every show, studios planning a room from scratch. If it carries signal, it is in scope. The form opens a pre-filled email, and the reply comes from the person who will do the work.
1.
Assess
A walkthrough of the existing system: what works, what fails, and what it would take to fix each piece, in plain language.
2.
Design
Signal flow, equipment list, and a written quote. You approve the design before a single cable is ordered.
3.
Build, and stand behind it
Install, calibration, documentation, and a handoff session, with support terms agreed up front in writing.
Have a system that almost works?
That is the most common starting point here, and the cheapest one to fix. Send the room, the gear, and what keeps going wrong, and the first reply is a straight read on what it takes.
Ntrensik Sound · 02
Two names, one booth
The performance arm of the practice. Producing since 2006, two Denver residencies in the past, now based in the North Carolina drum and bass scene, with a second identity for the slower, stranger hours.
Live & replay · YouTube
Live & latest set
Watch here when a set is live on Ntrensik DnB. Off air, the most recent set is queued on the right, straight from the channel.
Latest replay Most recent
The channel uploads playlist, newest first. The most recent stream replay plays first, with earlier sets behind it in the playlist menu.
Watch on the YouTube channel →Identity · Drum and bass
Ntrensik
Drum and bass the way the underground keeps it: obscure cuts, white labels, dubplates, and vinyl rips, built into two-hour sets on the Camelot wheel. Consecutive tracks stay close in tempo, the energy arc is planned, and the drop lands where it should.
Streaming as Ntrensik DnB on Twitch and YouTube, and on TikTok at @ntrensik_dnb.
Identity · Melodic & progressive house
Coy Du Roi
The other side of the record bag. Melodic and progressive house built on arpeggio guitar and whispered, mystical sci-fi vocals. Desert-planet patience instead of peak-time pressure. Same ears, different gravity.
Booking for Coy Du Roi runs through the same form below.
Digital products for DJs
Tools from the booth
Made for working DJs and sold direct. Digital items use the same cart as Threads, and delivery is confirmed by email on every order.
Bookings
Book a set
Clubs, warehouses, festivals, and livestream guest slots. Both identities travel with their own technical notes, and a camera package is available through Consulting.
Tell us the date, the room, and which name belongs on the flyer. Every booking is answered personally, with set length, fee, and technical needs settled in writing before the date is held.
1.
The date
Venue, city, and the night you have in mind, plus the slot length if you know it.
2.
The fit
Ntrensik for the drum and bass hours, Coy Du Roi for the melodic ones, or a split night with both.
3.
The night
Harmonic sets built for your room, with a livestream package available if the night goes out live.
Putting a night together?
Dates are held in writing, with set length, fee, and technical needs settled before the flyer prints. Both identities travel, and a livestream package can ride along through Consulting.
Ntrensik Designs · 03
Designed parametrically. Built to be printed.
The making arm of the practice. Parametric models that adapt to exact measurements, prototype printing on the bench, and replacement parts for the things nobody sells parts for anymore.
Service
Parametric Design
Models built in OpenSCAD with dimensions as parameters, so one design becomes a family of parts that fit your gear exactly. Change a number, get a new part, no remodeling from zero.
Service
Prototyping & Printing
Fit tests and functional prototypes printed in PLA on the bench printer, checked against the real object before anything is called final. Honest about tolerances, because a part that almost fits does not fit.
Service
Replacement Parts
The clip, guard, bracket, or knob the manufacturer discontinued. Measured from your original, modeled parametrically, and printed so the machine it belongs to keeps working.
In development
MITHRA
A multi-camera livestream rig for performers: Raspberry Pi camera nodes with PTZ control feeding one clean output to a restream server, with show modes configured ahead of the gig and an engineer mode for live direction. Interest list open through the form below.
Digital files
Print it yourself
Original designs from the bench, sold as files. Files are delivered by email once the order is confirmed.
Custom work
Commission a part
Send the measurements, photos of the original, or just the problem. If it can be modeled, it can be quoted.
Commissions start with the object: what it is, what broke or is missing, and the dimensions you can measure. A fit-test print comes before any final part, and the parametric source means a second copy later costs a reprint, not a redesign.
1.
Measure
Photos and caliper numbers if you have them, a traced outline if you do not. We work with what the part gives us.
2.
Fit test
A fast, inexpensive print to prove the fit against your original before time and material go into the real one.
3.
Final part
Printed, checked, and shipped, with the source file archived so replacements are a reprint away.
Missing a part nobody sells anymore?
That is the bench's favorite problem. Send photos and whatever measurements you can take, and the reply tells you whether it can be modeled, and what a fit test costs.
Ntrensik Threads · 04
A small rack, on purpose
Branded work only, so every piece earns its place. The first collection is the NC Bolt: the North Carolina flag rebuilt as a lightning strike, designed by Coy Theobalt.
NC Bolt Collection
Shop the collection
Six pieces, two designs, three garments. The ribbon bolt and the medallion, on a black tee, a carbon grey hoodie, and a khaki dad cap.
Ordering starts as an email to the shop, so sizing and print details are confirmed with a person before anything is charged.
The collection
Two designs, three garments
Every piece starts from the same flag, rebuilt two ways, and lands on the garment that carries it best.
For makers, labels & small brands
Sell on Ntrensik
Threads is a curated storefront, not just a clothing rack. Independent makers whose work belongs here are welcome on the rack.
If you print, stitch, paint, or press work with a point of view, we want to see it. Vendor spots are curated, the split is agreed up front in writing, and your brand stays yours: your name on every product card, your story on your pieces.
1.
Pitch your line
Send the form with what you make, where you are based, and photos or a link to the work.
2.
Agree the terms
Wholesale or consignment, pricing, and shipping responsibilities, settled in plain language before anything lists.
3.
List
Your pieces join the next drop and go out to the list with the rest of the rack.
Wholesale buyers and event pop-ups: use the same form and choose “Wholesale / retail.”
Lookbook
The collection, piece by piece
Both designs, all three garments. The ribbon bolt keeps the full capsule, the medallion stands alone.
Questions
Before you ask
How does ordering work?
Add pieces to the cart and check out by email. The shop confirms your size, the print, and the total with you directly, then sends payment and shipping details. A person stays in the loop, so there are no silent surprises on a limited drop.
What sizes do pieces run?
Tees and hoodies run unisex in sizes S through 3XL. The dad cap is one size, low profile with an adjustable strap. Ask on your order email and we will measure a piece for you.
Is Ntrensik one company or four?
One company. Ntrensik Design LLC covers Consulting, Sound, Designs, and this shop, and the same standard runs through all of them. The shop is one part of the practice, not the whole of it.
Can my brand sell on Ntrensik.com?
Yes, through the vendor program above. Curated spots open with each drop, terms are agreed in writing first, and your brand name stays on your work.
Do you do wholesale or event pop-ups?
Both. Retailers, promoters, and festivals can use the vendor form and choose “Wholesale / retail” or “Event pop-up or collab drop.”