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Home : Audio : Multi-room audio

A-BUS multiroom system

standard US style keypad standard EU style keypad standard US style keypad

A-BUS multi-room audio is unique in distributing audio to the target room, amplifying it at the keypad, then passing it to the loudspeaker. This means that you can use your existing stereo source, eg normal stack system, micro or mini hi-fi without any additional amplifying equipment in the source room.

Single source

In addition to your main listening room, which remains unaffected, A-BUS delivers music to up to another 4 rooms using the standard single source kit, but this can be expanded considerably

4 zone hub Wiring installation is straightforward using Cat5e cable from the surface mount hub to the keypads, then speaker cable to the loudspeakers.

Volume control is by the amplified keypads. These are available as either US style - see above photo on left, or as an EU/UK style with flat plates, shown above centre and right photos. The system has an IR receiver built into each of the keypads that can receive and transmit signals back to the stereo components via 4 built-in IR emitter outlets for full control. Single source kits include hub, keypads, power supply, remote control, IR emitter and punch down tool. 4 source kits also include a local source input plate, extra IR emitters and the learning remote control.

The standard US style keypads require US style single backboxes.)

The system has a power rating of 8 Watts, which is ideal for general listening throughout your house. Ceiling speakers with matched power ratings are supplied separately and can be chosen from our in-ceiling speakers range.

4 source hub

Click here to see a schematic for a single source ABUS system

If you want to have a tidy termination of the Cat 5e cable from the keypads near the central hub, you can use the HNS RJ45 data outlets either with or without the HomeCabling patch panel, and connect to the hub by a patch lead. If you use this system you must use our special T568A to T568B patch leads, because the Russound unit uses the American RJ45 colour coding but the HNS system uses the UK T568B colour coding. Price for the 1.5 metre patch lead is shown below.

Multi-source

ABUS is also available as MULTI-SOURCE with the 4 source surface mount hub, which allows you to choose independently from 4 sources in any of the 4 rooms. In fact each zone can drive two keypads so you can easily have music to 8 rooms! (NB: if you have more than 4 keypads working off a single hub, then to power these you need an extra power supply). You can add this to your existing A-BUS system, or buy it as part of a complete kit (AM341UK, see below), including the 4 souce 4 zone hub, 4 AKP2.2 keypads, a learning remote, APS power supply, and a single A-LC local source input.

4 source, 4 zone kit

System expansion

2 zone hub

The range of surface mount hubs allow you to add an extra 2 or 4 zones to your existing system, or have a complete 2 zone system. The hubs require an A-BUS APS power source, which drives 4 keypads. For 5 to 8 keypads you need two power supply units. For 9 or more keypads you need extra hubs and more power units

Lutron Grafik Eye keypad and ABUS keypad combined You can combine the Russound ABUS keypad with Lutron Grafik Eye light control wall station keypads in a US style double gang faceplate as shown in the photo. These faceplates can be white plastic (Decora type or screwless type as shown) or stainless steel or brass Decora type, see here.

Local source input

You can also add a local (room) input option with the ALC3 wall mount plate. This is ideal where your youngsters want to listen to their own mini system or personal CD player through the room speakers. It is also ideal if you want to use the stereo room speakers whilst watching TV. The ALC does not require power.

More power

Russound R235LS amplifierFor rooms where you need more music volume, Russound offer their R235LS in-line amplifier, generating 35 Watts per single zone (2 channel). This links to the AKP keypad and is controlled from it, using the keypad amp just as a pre-amp.

For installation manual of AH4 single source/4 zone system also showing the A-KP2 keypad connections click here (PDF file 683kB)

What's included in a kit

    ASE41 Single source to 4 zone kit
  • A-KPEU keypads (4) with choice of white metal, stainless steel or polished steel faceplates
  • A-H4 single source to 4 zone hub
  • A-PS power supply unit
  • A-KP RC remote control (controls volume up/down, system on and zone on/off)
  • Plastic punchdown tool
    AM341 Four sources to 4 zone kit
  • AK3 keypads (4) with US style screwless white plastic faceplates
  • A-H484 four source to 4 zone hub
  • A-PS power supply unit
  • A-LC3 local source input
  • A-SRC1 learning remote control (as for AKP RC above plus selects and controls sources if optional IR emitters are used. Pre-programmed with most major brands of audio and video equipment, but can also learn non standards, excluding IrDA NTL/Telewest)
  • Plastic punchdown tool
    AME40 Four sources to 4 zone kit
  • A-KPEU keypads (4) with choice of white metal, stainless steel or polished steel faceplates
  • A-H484 four source to 4 zone hub
  • A-PS power supply unit
  • A-SRC1 learning remote control (as for AKP RC above plus selects and controls sources if optional IR emitters are used. Pre-programmed with most major brands of audio and video equipment, but can also learn non standards, excluding IrDA NTL/Telewest)
  • Plastic punchdown tool

Installation Tips

Buy the US style back boxes for AK3 keypads early before the walls are plastered. Cut out size for the back box - 56mm wide x 95mm tall x 78mm deep

on demonstration in our showroom
Product Versions
Version Code Price  
A-BUS 1 source, 4 zone surface mount kit EU keypads ASE41 £1,008.00 (£840.00 excl VAT)
A-BUS 4 source, 4 zone kit surface mount kit EU keypads AME40 £1,344.00 (£1,120.00 excl VAT)
A-BUS 4 source, 4 zone kit surface mount kit US keypads AM341UK £1,363.20 (£1,136.00 excl VAT)
Compatible Products
Product Price
US style back box, single gang, plastic for stud walls £6.72 (£5.60 excl VAT)
A-BUS 4 source, 4 zone hub (A-H484) £537.60 (£448.00 excl VAT)
A-BUS 2 zone hub (A-H2) £139.20 (£116.00 excl VAT)
A-BUS 1 source, 4 Zone Hub (A-H4) £192.00 (£160.00 excl VAT)
A-BUS power supply (A-PS) £120.00 (£100.00 excl VAT)
A-BUS local source input (ALC3) £115.20 (£96.00 excl VAT)
A-BUS amplifed keypad (A-K3) £180.00 (£150.00 excl VAT)
Xantech twin Blink IR emitter - Designer version £20.40 (£17.00 excl VAT)
US style Decora faceplate - white plastic 1 gang £2.16 (£1.80 excl VAT)
US style Decora faceplate - white plastic 2 gang £4.20 (£3.50 excl VAT)
Russound Acclaim 5C51 speakers (pair) £99.00 (£82.50 excl VAT)
Xantech single Blink IR emitter - Designer version £16.80 (£14.00 excl VAT)
US style screwless wallplate - white plastic 1 gang £11.52 (£9.60 excl VAT)
Techlink WiresXS 2 phono to 2 phono from £12.64 (£10.53 excl VAT)
Techlink WiresCR 2 phono to 2 phono from £5.58 (£4.65 excl VAT)
Krone punchdown tool £12.60 (£10.50 excl VAT)
Russound Acclaim 5C62 speakers (pair) £134.40 (£112.00 excl VAT)
Russound Acclaim 5C82 speakers (pair) £213.60 (£178.00 excl VAT)
Russound Accliam 5W62 speakers (pair) £133.50 (£111.25 excl VAT)
Special T568A to T568B patch lead (1.5m) £9.70 (£8.08 excl VAT)
US style screwless wallplate - white plastic 2 gang £21.12 (£17.60 excl VAT)
QED Flood IR emitter £12.77 (£10.64 excl VAT)
RJ45 plugs, pack of 10 £3.60 (£3.00 excl VAT)
RJ45 crimp tool £14.29 (£11.91 excl VAT)
US style P-rings from £7.20 (£6.00 excl VAT)
iPort in-wall iPod docking station from £260.50 (£217.08 excl VAT)
Marantz CC4003 5 disc CD changer £349.00 (£290.83 excl VAT)
Marantz CD5004 CD player £229.90 (£191.58 excl VAT)
US style screwless wallplate - stainless steel colour 3 gang £44.40 (£37.00 excl VAT)
US style screwless wallplate - Stainless steel colour 1 gang £17.28 (£14.40 excl VAT)
QED Systemline CLS 0.5 in-ceiling speakers, pair £121.54 (£101.28 excl VAT)
Russound R850MC 4 stereo zone power amplifier £1,218.00 (£1,015.00 excl VAT)
Russound speaker-level to line-level stereo converter £39.60 (£33.00 excl VAT)
Easy RJ45 crimp tool £63.00 (£52.50 excl VAT)
US style back box, single gang, metal flatpack £7.50 (£6.25 excl VAT)
Xantech Designer Emitter Shield £5.21 (£4.34 excl VAT)
US style weatherproof cover, 1 gang £19.20 (£16.00 excl VAT)
QED Live uPlay Bluetooth Receiver £62.99 (£52.49 excl VAT)
Niles CM610 High Efficiency speakers (pair) £138.00 (£115.00 excl VAT)
Russound D250LS 50W power amplifier £384.00 (£320.00 excl VAT)
Sonos Connect £279.00 (£232.50 excl VAT)
Customers who bought this also bought
Product Price  
US style single gang back box £6.72 (£5.60 excl VAT)
US style 'Decora' faceplate - brushed brass/polished brass 1 gang £16.66 (£13.88 excl VAT)
Keywords: ABUS, abus, AKP2, AH484, AMK401, ABK2.2, ABK201, AH2, DPA1.2, A-H484, A-BK2.2, A-BK201, A-LC, ALC, A-H4, A-MK401, AVC, A-VC, APS, A-PS, A-KP2
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Manufacturer Russound




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