Sony Party Speaker SRS-ULT900AC ULT TOWER 9AC — 7 speakers, Bluetooth, portable, 28.5 kg, Black

Experience powerful sound pressure with the ULT TOWER 9AC party speaker. It delivers deeper bass, 360° Party Sound and synchronised Party Lighting in a portable cabinet with a carry handle and stable castors. The speaker includes an X-Balanced Speaker Unit and ULT DUCT for clear, low-frequency response, multiple tweeters for vocal clarity, karaoke inputs and lighting features to create a festival-like atmosphere at home or events.

Advantages

The speaker offers selectable ULT bass modes (ULT1 for deeper low frequencies and ULT2 for punchy bass), 360° sound coverage from four tweeters and two mid-range drivers, and a large 320 mm x 320 mm X-Balanced woofer for increased diaphragm area and reduced distortion. Built-in ULT DUCT improves bass extension, while splashproof top panel and castors with a carry handle make transport and use at parties convenient. Additional features include Party Connect to sync up to 100 compatible speakers, Stereo Pair via Bluetooth for true left/right playback, microphone inputs and karaoke controls, TV Sound Booster via optical connection, and multipoint Bluetooth pairing for two devices.

Key specifications

• Model: ULT TOWER 9AC
• X-Balanced Speaker Unit with 320 mm x 320 mm woofer
• ULT bass modes: ULT1 (deeper low-frequency) and ULT2 (powerful punchy bass)
• 360° Party Sound with four tweeters and two mid-range drivers
• ULT DUCT for extended bass
• 360° Party Light (synchronised lighting display)
• Party Connect: up to 100 compatible speakers
• Stereo Pair via Bluetooth (left/right)
• Karaoke support: microphone inputs, Echo and Key Control
• Optional wireless ULTMIC1 microphone set (receiver included)
• TV Sound Booster via supplied optical cable
• Multipoint Bluetooth: pair two devices simultaneously
• Portable design: carry handle and stable castors
• Splashproof top panel

How to use

Place the ULT TOWER 9AC on a stable surface and use the carry handle and castors to move it into position. Press the ULT button on the top panel to switch between ULT1 and ULT2 bass modes depending on whether you prefer deeper low frequencies or punchier bass. Connect a source via Bluetooth, the optical input for TV, or plug microphones into the dedicated inputs for karaoke and performance. Use the top-panel Echo and Key Control to adjust microphone effects. For synchronized music and lighting with other speakers, press the Party Connect hardware button to add compatible units or pair two speakers via Bluetooth for Stereo Pair. Control sound and lighting presets using the Sony | Sound Connect app if desired.

Recommendations

For best results, place the speaker centrally in the room to maximise the 360° sound coverage, ensure the top panel remains dry to protect the splashproof surface, and use the supplied optical cable when connecting to a TV to enable the TV Sound Booster function. If using karaoke frequently, consider the optional ULTMIC1 wireless microphone set for easier setup and mobility.