Tecpro Series 2 Power Supplies provide 24V DC to power small to medium sized intercom systems while terminating the audio lines with the correct impedance, enabling full duplex (simultaneous, two way) conversations to take place over extended cable runs. The 2A supply is capable of driving up to 45 BP511 beltpacks or 9 Tecpro loudspeaker outstations and is protected by a compact, robust, extruded aluminium case designed to withstand the rigours of the live events environment. They are fully compatible with older Tecpro designs. The PS753 can power 3 independent circuits, or be linked together.