BST UPA240TU - 4-Zone 240W Power Amplifier Mixer
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BST UPA240TU – 4-Zone 240W Power Amplifier Mixer
The BST UPA240TU is a professional power amplifier mixer designed for PA installations and audio zoning systems. With a total power of 240 W distributed across four independent zones, it offers maximum flexibility and sound quality in schools, hospitals, retail stores, and auditoriums. It incorporates four microphone inputs with selectable +48 V phantom power, a line input, and an emergency telephone input (EMC), both with priority, echo, and mute control. It features a built-in USB-SD player with LCD MP3 display, AM/FM tuner, two-band output equalizer, and echo, siren, and bell functions. Its variable-speed fan cooling, 19" 2U rack format, and dual 220–240 V AC / 24 V DC power supply guarantee continuous and reliable operation.
Main features
- Total power: 240 W distributed in 4 zones.
- Inputs: 4x mic/line combo (XLR/jack) with selectable +48 V phantom power; 1x line; 1x EMC (phone) with priority.
- REC output: 1× jack/terminals for external recording.
- Priority control on Mic 1 and EMC with echo level adjustment and mute function.
- 2-band equalizer (bass and treble) on the master output.
- Integrated USB-SD player with LCD screen compatible with MP3.
- Built-in AM/FM tuner.
- Echo, siren and bell functions for acoustic alerts.
- Monitor path with output for additional speaker.
- Variable speed fan cooling.
- Dual power supply: 220–240 Vac (50–60 Hz) or 24 Vdc.
- 19″ 2U rack format with aluminum front and handles.
Product benefits
- Versatile zone layout: Four independent zones with individual level control for music and announcements.
- Professional Connection: XLR/jack inputs and terminals facilitate integration with consoles and emergency telephones.
- Audio Quality: Output equalization and echo control optimize intelligibility in complex environments.
- Multiple Sources: MP3 player, AM/FM tuner and line input reduce the need for external equipment.
- High reliability: Dual power supply and progressive fan ensure continuous operation in critical installations.
Use cases
Ideal for PA systems in educational, healthcare, and commercial centers; background music distribution in restaurants and hotels; evacuation and alarm systems in airports and stations; and auditoriums and conference rooms with audio zoning.
Frequently Asked Questions
- How does microphone and phone priority work? When Mic 1 or the EMC input is activated, the other channels are attenuated and echo/mute is applied according to the configured level.
- Can I power the device with 24 V DC? Yes, it has a 24 V DC input for backup in case of power outages.
- What USB/SD formats does it support? MP3 playback on USB drives and SD cards up to 32 GB.
Description for projects
4-zone 240 W amplifier mixer, 4× mic/line inputs with +48 V phantom power, 1× line, 1× EMC with priority and echo, REC output, 2-band equalizer, USB-SD MP3 player, AM/FM tuner, echo/siren/bell, 1 W monitor, 4 Ω/70 V/100 V outputs, variable fan, 220–240 Vac/24 V dc power supply, 19″ 2U rack, dimensions 484×88×320 mm, weight 16 kg.
- Type Audio
- Vendor BST
- SKU UPA240TU-95-1534
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