  Kit Includes:
(1) A-H484 Multisource Multizone Hub
(4) A-K3 Amplified Keypads
(1) A-LRC2 Learning Remote
(1) A-LC3 Local Source Input
(4) 845.1 IR Emitter
(1) A-PS Power Supply
System Hub
The A-H484 multisource hub allows you to play up to four audio sources through your A-BUS system. You can select any source independently in each zone at the keypad or with an A-LRC1 remote control. Each zone may have one or two rooms with A-KP2 Amplified Keypads.
To control the sources, you can use either the A-LRC1 or the source manufacturer’s remote. The A-H484 passes source commands from each zone to the source selected in that zone. It also provides a common IR output to pass source commands from all zones.
The A-H484 provides four zones. Multiple A-H484 hubs can be linked together to accommodate larger systems.
Keypads
Simple and elegant, the A-K3 Amplified Keypad provides easy control of your music. Turn it on or off, select from up to six sources, or adjust the volume with just a touch—or use a remote control if you prefer.
As inconspicuous as a light switch, the A-K3 complements your décor. Its built-in amplifier powers your room speakers directly, or you can use its line outputs to feed an external amplifier or powered subwoofer.
The A-K3 works with any A-BUS hub or controller, as well as with A-BUS-ready receivers and A-BUS subzones on multiroom controllers.
Local Source Input
The A-LC3 Local Source Input allows you to connect a computer, CD player, or other audio source to the room speakers in an A-BUS zone. It automatically selects the connected source when it senses an audio signal. You can then use the room keypad or volume control to adjust the speaker volume while playing the local source, just as you would while listening to a source through the main A-BUS system. When used with a Russound A-K5L keypad, it will turn on the zone’s keypad.
Designed to install in a single-gang wall box, the A-LC3 connects with CAT-5 cable between the A-BUS system hub (or A-BUS-ready receiver) and an A-BUS Amplified Keypad or Amplified Volume Control.
IR Capabilities
The 845.1 IR Micro-Emitter transfers infrared commands to a single audio-video component or other device. Its head attaches to the component’s IR sensor with an adhesive pad. The emitter’s cable plugs into an emitter jack on a multiroom controller or hub, or an IR connecting block such as the Russound 857 or IRB-6.
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Features and Specifications:
A-BUS® is the easiest way to enjoy music throughout your home. Designed for simplicity and exceptional ease of use, it’s more convenient to use than any stereo system you’ve ever owned.
Using a revolutionary technology, A-BUS sends stereo music to amplified keypads or volume controls throughout your home, extending your audio system to as many rooms as you choose.
- Hub:
Keypad connectors: RJ-45 T568A standard - Link connectors: RJ-45 T568A standard
- Emitter connectors: 1/8" TS connector,
tip (+), sleeve (–)
- Trigger output: 12 VDC 100 mA
1/8" TS connector, tip (+), sleeve (–)
- Power requirement: A-PS power adapter,
24 VDC 4 A (one required for each group
of 4 keypads)
- Dimensions: 6.5" W x 5" H x 1.5" D
(16.5 x 12.7 x 3.8 cm)
- Weight: 1 lb 12 oz. (795 g)
Keypads:
User controls
Power on / off
Source select (with multisource hub)
Volume up / down - IR control
Built-in IR receiver with pass-through
- Indicator
IR confirmation / source status LED
- Installer adjustments
Potentiometers for volume trim and left-right balance
- Line and speaker outputs
Screw terminal connectors
- Speaker output impedance
8 ohms per channel
- Input impedance
10k ohms minimum, line input
- Power requirement
24 VDC, 660 mA
- Status input requirement
12 VDC, 20 mA minimum
- Power and signal cable
CAT-5, 250 ft (76 m) maximum
- CAT-5 connection
RJ-45
- Dimensions in wall
1.75” W x 2.875” H x 1.75” D
(45 x 73 x 45 mm)
- Weight
5.5 oz (160g)
Remote:
Type
Programmable learning system remote - System supported
Russound A-K3 Amplified Keypad
- Number of sources supported
7, with direct selection keys
- Learning capacity
Up to 24 commands
- Batteries
(2) AA alkaline
- Finish
Black
- Dimensions
2.4” W x 9.2” H (6.1 x 23.4 cm)
Local Source Input:
Audio input connectors
Line-level stereo RCA jacks - Input sensitivity
1 Vms
- Switching delay
Adjustable from 3–60 seconds
- CAT-5 connectors
(2) RJ45 connectors
- IR Emitter connnection
3.5 mm mono IR output jack
- Power requirement
24 VDC 20 mA (supplied through CAT-5 cable)
- Dimensions in wall
1.75" W x 2.875" H x 1.75" D
(4.5 x 7.3 x 4.5 cm)
- Weight
3.5 oz (100g)
IR Emitters:
Operating voltage
5–12 VDC - Cable length
10’ (3 m)
- Connector
0.125” (3.5 mm) TS mini plug, tip positive
- Head dimensions
0.5” W x 0.375” H x 0.25” D
(12.7 x 9.6mm x 6.4mm)
- Weight
2 oz (57 g)
Power Supply:
Power input
100–240 VAC 50–60 Hz 1.5 A maximum - Power output
Nominal: 24 VDC 2.5 A
Range: 20–25 VDC 3 A maximum
60 watts maximum
- Power cord
IEC detachable
- Output lead
6 ft (1.8 m)
- Output connector
2.5 mm plug, tip positive
- Dimensions
5.125” W x 1.188” H x 2” D
(13.0 x 3.0 x 5.1 cm)
- Weight
10.5 oz (298 g)
Questions and Answers:  By Alfred B. Klamm from Germany on July 25, 2012 Hi all.
I'm interessted in the a-bus set you offer. Did yout send it to customers in Germany? Are there problems with german audio or elektric standards? What's the price for shipping? Are there customs duty to pay?
Thank's for helping!
Best regards,
Alfred By Customer Service - Q&A on July 25, 2012Answer:Hi Alfred,
The most economical way to ship to Germany is USPS priority international. Put in your postal code, change the country to Germany, and select USPS priority international for your shipping method and press Apply for shipping quote on the site.
CLBy Joseph Zhou from Fremont, CA on November 27, 2011 I have installed Russound's A-BUS system in my home. Wnen I turned off the source music (receiver, Ipod, etc), why all the wall pads (the amplifers) and hubs could not be turned off, but still on? My understanding that A-BUS should turn off all the wall pads and hub when the music source turned off.
Joseph By Customer Service - Q&A on November 29, 2011Answer:Hi Joseph,
The Owner’s Manual and information does not seem to answer your question. I see that the system features auto turn on when you turn the source on. Then the wall plate/amplifiers become active. I am assuming you need to turn off the system either at the key pad or with the remote control. I would suggest you direct the same question to the following:
tech@russound.com. They are the company that first introduced A-Bus to the US (from Australia).
TL/MABy TJH from NE on February 23, 2012 What is a good ceiling speaker for this system? I know the system has low wattage, so what kind of speaker would be the best choice to produce good quality sound despite the power limitations of A-BUS? By Customer Service - Q&A on February 24, 2012Answer:Hi TJH:
I would not sell the A-BUS short regarding power. The whole concept was that the amplification would be located in the Volume controller in the room closer to the speakers. The ideal setup is to have a dedicated amplifier per room. Shorter Speaker level runs produce less loss. We would recommend the OSD PRO series in-ceiling speakers. They have the broadest selection and are the most efficent (91dB) take less power to drive them.
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View Owner's Manual
