Audio
QSC K Series (original) / HPR / TouchMix-8 & 16 troubleshooting
The QSC K Series (original) / HPR / TouchMix-8 & 16 problems live-event techs bring to Ask Roadie most (also called HPR122i, HPR152i, KSub, KW152). Pick your symptom, or describe your own in plain words, and get the likeliest fix first, with the manual page when there is one.
Common K Series (original) / HPR / TouchMix-8 & 16 errors & problems
What techs run into most, and what's usually behind it. The step-by-step fix for your exact unit is in Ask Roadie.
- Step-by-step fixGet the fix →
How do I tell an original QSC K10/K12 from a K10.2/K12.2?
Likely cause: The two generations have different controls, so troubleshooting steps differ.
- Step-by-step fixGet the fix →
Original QSC K10/K12 front LED, Limit LED or standby behavior
Likely cause: The front LED can mirror the rear Power or Limit LED so you can see limiting from FOH.
- Step-by-step fixGet the fix →
Original QSC K10/K12 mic too quiet or line source distorting
Likely cause: Mic mode adds preamp gain meant only for mic-level signals.
- Step-by-step fixGet the fix →
Original QSC K10/K12 sound boomy or thin with a subwoofer
Likely cause: EXT SUB hands the low end to the sub so the two don't overlap.
- Step-by-step fixGet the fix →
Original QSC K10/K12 speech hard to understand
Likely cause: Vocal Boost lifts the presence range where speech consonants sit.
Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.
How Ask Roadie helps with the K Series (original) / HPR / TouchMix-8 & 16
- 1. Pick the QSC K Series (original) / HPR / TouchMix-8 & 16. It's already in the list.
- 2. Describe what you're seeing. In your own words, or the error code off the screen.
- 3. Get the likeliest fix first. Steps in order, the manual page when there is one, and a note when other techs have confirmed it.
- 4. Still broken? Tap 👎 and it keeps going from where you left off.
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