Features Outreach Plates (used to increase audio inputs on an Induction Loop System) PDA Range Outreach Plate Audio Input Extension System. These products can be used to increase the number of audio inputs on an induction loop system *Our ML1, PDA102, PDA200E and PDA Pro-Range amplifiers all have Outreach connection sockets. A separate 12v PSU may be required when connecting outreach plates to other amplifiers. Plates should be wired using Belden 8723 audio cable. Typically, up to 10 Outreach plates (any mix) can be daisy-chained to one balanced line level input with cable lengths of up to 100m easily achievable using standard two-pair audio cable with no recognisable degradation of audio signal quality. Each outreach plate requires four wires, two balanced line (A+, A), one ground (0V) and one power connection (12-32 V DC regulated). To facilitate their straightforward connection, most PDA Range amplifiers are fitted with an Outreach connection socket as standard.