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Russound AM440 4S4Z - A-BUS Kit The Russound AM440 4S4Z A-BUS Kit is a versatile multi-room audio solution that supports up to four sources and four zones, delivering high-quality sound control throughout your home. Ideal for South African homes, this system offers easy source selection and amplified keypads for seamless audio management. What's in the Box 4 Source 4 Zone Surface Mount Hub (A-H484) 4 Amplified Keypads (A-K4) Learning Remote (USRC) Dual IR Emitter Power Supply (A-PS) Wall plates not included 4 Room/4 Source Surface Mount Hub A-H484 The A-H484 multisource hub allows you to play up to four audio sources independently in each zone of your A-BUS system. Each zone supports one or two rooms with A-K4 Amplified Keypads. Control sources using the A-LRC1 remote or the source manufacturer's remote, with IR commands passed through the hub for seamless operation. Multiple A-H484 hubs can be linked to expand your system for larger installations. Key Features Supports up to eight rooms in four zones (two rooms per zone) Expandable by linking multiple hubs for additional zones Surface mount design for shelf or wall installation near audio equipment Provides routed and common IR outputs plus a 12-volt trigger output A-BUS Amplified Keypad A-K4 The A-K4 Amplified Keypad offers simple and elegant control of your music. Easily turn audio on or off, select from up to six sources, or adjust volume with a touch or remote control. Designed to blend discreetly into your decor, the keypad includes a built-in amplifier to power room speakers directly or provide line-level outputs for external amplifiers or powered subwoofers. Compatible with any A-BUS hub, controller, or A-BUS-ready receivers and subzones. Key Features Simple control of basic audio functions Passes IR commands to connected source equipment Variable line-level output for external amplifier or powered subwoofer connection Controllable via A-BUS system remote