The C 298 may be a basic power amplifier, but we've carefully considered all the use cases that commonly arise to create a rich feature set. Optional balanced inputs make the C 298 a natural for studio use or connection to high-end preamps and processors. These inputs include a trim control useful for matching other components. Line output allows additional power to be added on the same channel for additional speakers or subwoofers. Auto-sensing with selectable threshold is perfect for automating complex systems or hiding an amplifier in a case. We even include a ground connection, which can be very useful for eliminating ground loops and noise in complex multi-unit systems. Added to all this connectivity is a bypass switch that turns the C 298 into an incredibly powerful monoblock amplifier. Start with one and add another C 298 later as you upgrade your speakers.