Lundahl Stereo Isolation Unit, SIB15

SIB15 Stereo Isolation and Balancing unit

SIB15 is a unit for interfacing between unbalanced audio sources (such as laptops and tablets) and professional, balanced audio systems. In particular in situations where a laptop is the source for both audio and video signals, the SIB15 eliminates the ground loops which are common sources of hum and noise. SIB15 has a length of 1.8 meters (where length of unbalanced cable is 1.4m), which is enough for most situations.

SIB15 provides:
Full galvanic isolation between all connectors
True unbalanced-to-balanced conversion
Robust die-cast aluminum housing

Technical specification:
Total weight 275 g
Total length 1.9 m

Internal transformers 2 x LL1532 S
ignal level capability at 50Hz +12 dbu / 3V RMS / 8V P-P
Signal loss across transformer (load 10k) 0.3 dB
Frequency response (source 10 ohms, load 10k) 6Hz 80kHz +/- 1 dB
Isolation between any two connectors > 1 kV RMS