The Audioflow 3 Way Smart Speaker Switch lets you connect and control up to three pairs of passive speakers from a single stereo amplifier. It is ideal for creating three listening zones, such as a bedroom, dressing room and en-suite, or a kitchen, dining area and garden, without requiring a separate amplifier for each space. Each speaker zone can be switched independently, or multiple zones can play together. Control is available from the touch-sensitive buttons on the front, through the Audioflow app over Wi-Fi, using compatible Amazon Alexa voice commands or through contact closure connections. One Amplifier, Three Speaker Zones Connect the speaker output from your amplifier to the Audioflow, then connect one pair of passive speakers to each of its three zones. Every active zone receives the same audio source and shares the amplifier’s volume level, while the Audioflow lets you choose which areas are playing. This makes it a practical solution for ceiling speakers, wall-mounted speakers, bookshelf speakers and passive outdoor speakers installed across three adjoining rooms or areas. Control Three Speaker Zones: Connect up to three pairs of passive speakers to a single stereo amplifier and switch each zone independently. Flexible Playback: Listen through one zone or select multiple zones to play at the same time. Audioflow App Control: Select your speaker zones remotely using the Audioflow app for compatible iOS and Android devices. Amazon Alexa Compatibility: Use compatible Alexa voice commands to switch individual speaker zones. Front Touch Controls: Operate each zone directly using the touch-sensitive controls on the front of the unit. Contact Closure Control: Integrate the switch with compatible third-party control systems using its contact closure connections. Impedance-Matching Design: The series/parallel switching arrangement helps protect the connected amplifier when multiple speaker zones are playing. Amplifier Protection: A 200Ω dummy load protects compatible amplifiers when every speaker zone is switched off. Made in the UK: Designed, manufactured and production-tested in the United Kingdom. Important Compatibility Information The Audioflow is a speaker selector, not an amplifier. It must be connected to the speaker output of a suitable stereo amplifier and can only be used with passive speakers. It does not power speakers by itself and is not intended for active or powered speakers. All three zones play the same audio and use the same amplifier volume setting. The Audioflow switches each zone on or off but does not provide separate audio sources or independent volume control for each area. The three-zone model uses an impedance-matching series/parallel arrangement, with Zone A operating in parallel with Zones B and C connected in series when required. This helps prevent the combined speaker load from falling below a safe level for the amplifier. Available amplifier power is shared between active zones, so the relative output may vary depending on the selected zones and connected speaker impedances. The smart-control features require a 2.4GHz Wi-Fi network. Please check your amplifier, speaker impedance and proposed wiring before ordering. If you are unsure whether the Audioflow is suitable for your system, contact our team and we will be happy to confirm compatibility. Specifications Model: Audioflow 3S-3Z Speaker Zones: Up to three pairs of passive speakers Amplifier Inputs: One stereo amplifier Zone Selection: Individual or multiple-zone playback Volume Control: No, volume is controlled by the connected amplifier Speaker System Design: Impedance matching, with Zone A in parallel with Zones B and C in series Maximum Amplifier Power: 300W at 8Ω Switching Relays: Maximum 8A at 250V AC Maximum Speaker Cable Size: 2.5mm² or 14AWG All Zones Off Protection: 200Ω dummy load Wi-Fi: 2.4GHz 802.11b/g/n with WPA/WPA2 PSK Control Options: Front touch controls, Audioflow app, Amazon Alexa and contact closure Power Input: 5V DC, 1A, 2.1 × 5.5mm centre-positive barrel connection Power Supply: 100–240V, 50/60Hz with 1.8m lead Product Dimensions (H × W × D): 38 × 216 × 100mm Product Weight: 293g Boxed Dimensions (H × W × D): 90 × 355 × 127mm Boxed Weight: 704g Warranty: 1 year What You Get 1 × Audioflow 3S-3Z three-way smart speaker switch 1 × Power supply Speaker cable connection plugs Cable ties Quick-start guide