• Kopul LT-PDI Laptop One-Channel Passive Direct Box (Caja Directa) – Converts Unbalanced to Balanced Audio, Ideal for Computer, Stereo DI Box, Clean Audio Signal for PA Systems KWD 25
• KOPUL XLR Single-Channel Passive Isolation Transformer – Eliminates Ground-Loop Hum, XLR Balanced/Unbalanced Input/Output, Gold-Plated Connectors, Ideal for Studio, Home or Stage Use KWD 16.500