Short answer: yes, but not as a blanket "bring your mates and hang around the car" policy. EMMA judging has specific, rule-defined moments where a second person can step in — and plenty of moments where it's just you and the judges. Knowing which is which saves you an awkward conversation on the day.
Sound Quality judging: it's mostly you
During an SQ session, the process is built around the competitor, not a team. You're the one who suggests the listening volume to the judges — the rulebook is explicit that "the judges should use this volume" once you've set it, and you can ask for an adjustment if it's too quiet. If a channel fault turns up during the listening evaluation, you get a short window (five minutes under the official judgebook) to fix it. In practice that's usually the competitor reaching in and re-seating a connector or swapping a source, not a tuner setting up a laptop mid-session. I don't see teams crowding the car during SQ — it slows the whole event down and judges will ask extra people to step back so the listening position stays controlled.
Install Quality: your "designate" can present for you
This is where the rules explicitly make room for someone else. For Install Quality judging, the competitor "or their designate" gets up to seven minutes to walk the judges through the system — what was built, why it was built that way, and the result. X Unlimited class gets fifteen minutes. Go over time and it's a one-point deduction per thirty seconds, and video presentations aren't allowed — you're talking us through the actual car, not playing us a highlight reel.
So if your installer or tuner knows the build better than you do, or English isn't your first language and your tuner can explain it more clearly, sending them up to present is completely within the rules. What I want from that seven minutes isn't a recitation of every part number — it's the reasoning behind the choices and a straight answer when I ask a follow-up question, and that's true whether it's you or your tuner standing there.
How I run it as a judge
One presenter at a time, please. If your tuner is doing the Install Quality walkthrough, that's fine — but I'm not taking questions from two people at once, and I'm not going to referee a disagreement between competitor and tuner about what the judges are being told. Pick who's talking before you get to the car. Outside of the defined explanation window, keep the crowd around the vehicle to a minimum; a queue of competitors is usually waiting behind you and judges need a clear line of sight and a quiet cabin to do the job properly.
The practical takeaway
Bring your tuner or a team member to the event, absolutely — they're often the ones who know the crossover points and the reasoning behind a panel gap. Just go in knowing where they actually get to speak: the Install Quality explanation is theirs to give if you want it that way, SQ judging is really a one-on-one between you and the judges, and paperwork and prep are best sorted well before you're called up (see the paperwork mistakes most first-timers make). If you want the fuller picture of how the two disciplines are scored differently, start with SQ vs SPL and how Install Quality is judged, then read your results against how to read your scoresheet once judging's done.
If you're not sure whether to present yourself or hand it to your tuner, ask the judge before your slot starts — we'd rather answer that in ten seconds than have it sorted out mid-explanation.
Building or refining a system with competition day in mind? Our DIY install guidance and car sound upgrade resources cover the groundwork, and you can always get in touch if you want to talk through a build before you enter.
Written by Pete Zurcher - Integrated Audio
Pete is founder of Integrated Audio and a Certified International EMMA Head Judge. Writing from the judging side of the table, drawing from hands-on experience building and listening to hundreds of car audio systems.