THE SHORT VERSION
You bring the show. We bring the computers — and someone who has sat in these pits for ten years.
Jay Jeong Productions supplies the computer side of the musical theatre pit in Seoul: keyboard workstations, playback systems, failover hardware, power protection, and the racks and cabling that tie them together.
For a production arriving from overseas the equipment is usually the easy part. The harder part is knowing what changes when the show lands in a Korean venue.
This page is what we would tell you on a first call.
WHAT CHANGES IN KOREA
Three things that catch productions out.
None of these are difficult. They are just easier to solve four months out than four days out.
01
Power
Korea runs 220 V at 60 Hz on Type C/F outlets. A US touring rig is 120 V and needs step-up transformers;
a UK or European rig is fine on voltage but should be checked for anything with a motor or an older linear supply.
| Korea | 220 V · 60 Hz · Type C/F | — |
| US tour | 120 V · 60 Hz · Type A/B | Transformers required |
| UK | 230 V · 50 Hz · Type G | Plug adapters · check 50 Hz gear |
| Japan | 100 V · 50/60 Hz · Type A | Transformers required |
Every rig we supply arrives behind AVR and UPS protection. Transformers for incoming gear are arranged per production.
02
The pit
Seoul houses differ widely in pit depth, rack access, and how much of the band is under the stage. We walk the venue before the specification is locked, so the rack layout is drawn for the room the show is actually going into — not for a generic pit.
03
Who is in the room
Your music supervisor works with a local band and local crew. We are in the pit for load-in, tech, and the run
— not only for the install — and correspondence and on-site support are in English.
Who Brings What
The split, before anyone asks.
You Bring
- Show files and patches
- Your music supervisor's requirements
- Keyboard and controller models needed
- Show control requirements — timecode, cue sync
- Anything the production insists on travelling with
We provide
- Keyboard workstations, each with a full duplicate backup
- Redundant playback systems
- Automatic failover switching
- AVR and UPS power protection
- Racks, pit cabling, installation
- On-site support through the full run
- Reserve units held in Seoul
THE INSTRUMENT RENTAL HOUSE
- Keyboards and controllers
- Pedals and stands
- Instrument cabling
- Band amplification
We build our racks to integrate with whatever the production’s instrument house supplies.
HOW IT WORKED
The Great Gatsby — Seoul, 2025
We supplied the keyboard and playback systems for the Seoul run.
It completed without a single system failure.
How to start
Four steps, and the first one takes you five minutes.
1
Send the music department rider
Or the spec sheet, or a photo of last season’s rack. Whatever you have.
2
We return a matched specification
What we hold, what needs to be sourced locally, and what you should keep travelling with.
3
Venue walk before the spec is locked
We draw the rack layout for the actual pit, with your supervisor on a call if needed.
4
Install, tech, and the run
We are in the pit from load-in to closing night, with reserve units held in Seoul.
Lead time — the earlier the rider arrives, the more of it we can cover from stock rather than sourcing.
GET IN TOUCH
Tell us the production and we'll send the sheet that applies to it.
Please include
Production · Venue and Dates · Your role · Rider or spec sheet if you have one