Role in the IEM system: Keyboards send stereo unbalanced outputs into a stereo DI, which converts them into balanced XLR signals before splitting.
Why this works: The DI ensures proper level, noise rejection, and stereo integrity. FOH decides whether to keep stereo or sum to mono, while the IEM system hears exactly what’s being sent.
Key takeaway: Keys are PA instruments — the DI is a translator, not a splitter.
SIGNAL CHAIN
Keyboard (Left/Right TS) → DI → Stage XLRs
HARDWARE
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Passive DI Transformer Box
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Radial - Pro D2
Product Page:
Radial ProD2 2-channel Passive DI Box | Radial Engineering
- Converts dual TS (L/R) to balanced XLR
- Handles line-level signals cleanly
- No power required
- Works in any venue
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Radial - Pro D2
CABLES
- (x2) TS instrument cables
- (x2) XLR cables
