BST UPX460 - 4-Zone 120W Power Amplifier Mixer

BST UPX460 – 4-Zone 120W Power Amplifier Mixer

The BST UPX460 is a power amplifier mixer designed for PA environments and zone sound systems. With a total power of 120 W and the ability to manage up to four audio zones, it integrates priority functions on microphone input 1 and on the telephone line (EMC), echo level control, and mute. Its USB-SD player with LCD screen allows MP3 file playback, and the built-in AM/FM tuner expands the sound source possibilities. It also includes selectable +48 V phantom power on the four microphone inputs, a two-band EQ on the output, echo, siren, and bell functions, and a monitor output for an additional speaker. Its 19″ 2U rack format with fan cooling and dual power supply (220–240 Vac / 24 Vdc) guarantees reliability and continuity in professional installations.

Main features

• Total power: 120 W in four independent zones.
• Inputs: 4 x microphone (XLR/jack/terminals) with selectable +48 V phantom, 1 x line, 1 x EMC (phone).
• Recording output REC: 1 x jack/terminals.
• Automatic priority on Mic 1 and EMC with echo and mute control.
• 2-band output equalizer (bass and treble).
• Integrated USB/SD player with LCD screen for MP3.
• Built-in AM/FM tuner.
• Echo, siren and bell functions for alerts and acoustic signals.
• Monitor output for additional speaker.
• Active low-noise fan cooling.
• Dual power supply: 220–240 Vac (50–60 Hz) or 24 Vdc.
• 19″ rack format (2U) with two front handles.

Product benefits

• Efficient zone management: Allows signals to be distributed to four different zones, ideal for multi-area installations.
• Priority Control: Ensures that emergency calls or the main microphone are masked over any other sources.
• Integrated multi-source: Combines MP3 player, AM/FM tuner and line inputs, reducing external equipment.
• Quality and Clarity: Dual-band equalization and echo control optimize the intelligibility of announcements and background music.
• Continuous operation: Dual power supply and protection circuits provide high reliability in critical systems.

Use cases

Ideal for PA systems in schools, hospitals, businesses, and offices; background music distribution in restaurants and hotels; alarm and evacuation systems in airports and stations; and auditoriums and conference rooms where zone management and microphone priority are required.

Frequently Asked Questions

• How does phantom power work? Each of the four microphone inputs can independently activate +48 V phantom power for condensers.
• Can I connect the system to the emergency grid? Yes, thanks to the 24 V DC alternate power supply, it can maintain operation even during power outages.
• Is it possible to adjust the echo and mute settings for phone calls? The EMC input includes echo level control and mute mode to prioritize communications.

Description for projects

120W power amplifier mixer in four zones, 4 x microphone inputs with +48V phantom, 1 x line, 1 x EMC, REC output, automatic priority on Mic 1 and EMC, 2-band equalizer, USB/SD MP3 player, AM/FM tuner, echo/siren/bell functions, monitor output, fan ventilation, 220–240 Vac/24 Vdc power supply, 19″ 2U rack, weight 11 kg, dimensions 484×89×280 mm.