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Alto Alto

Alto TS412 12" 2-Way Powered Loudspeaker With Bluetooth, DSP and App Control

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A 2,500W 12" two-way loudspeaker with powerful DSP and easy control.

Building on the legacy of the popular TrueSonic speakers, the Alto TS412 12" loudspeakers provide increased power, clearer sound and advanced Bluetooth functions including streaming, speaker linking and wireless control via the Alto App. Compact, lightweight and designed for reliability, the TS412 makes it simple to get great live sound at every event.

True Sonic Power

Whether you need a powerful vocal PA or club-shaking bass performance for a DJ set, TS412 speakers deliver loud, clear, room-filling sound for any application. With a 12" woofer and a 1.4" compression driver, TS412 delivers 2,500W of class-leading power and clarity in equal measure.

Alto App for Remote Configuration and Control

Available free for both Android and iOS, the Alto App gives hands-on remote control over Bluetooth levels, Speaker Use modes, Custom EQ and Sub Size selection. Further, True Wireless Stereo linking can be configured remotely via the app to save time during setup.

Built-in 3-Channel Mixer

Every TS412 features an integrated 3-channel mixer, with two mic/line input channels and a dedicated Bluetooth channel. The mic/line channels feature XLR/TRS combo jacks and can be used with microphones, instruments and line-level signals without the need for additional hardware or adjustment. Just plug straight into the rear panel, and you’re up and running.

Simple Bluetooth Streaming and Speaker Linking

The ideal high-powered streaming solution, TS412's built-in Bluetooth connectivity makes it easy to pair your laptop, phone or tablet and get the music pumping. With the True Wireless Stereo function you can stream Bluetooth audio to two TS412 speakers in perfect stereo, without the need for any cables.

DSP Modes for the Best Sound in Every Application

TS412's three preset "Speaker Use" modes let you optimize the speaker for any application, so you'll get great sound every time at the touch of a button. For even more control over your sound, you can configure a Custom EQ within the Alto App and remote adjust the settings from any listening point in the venue. You can even save your favorite Custom EQ setting direct to the TS412 for easy recall whenever you need it.

Versatile and Reliable

From the high-quality drivers to the fanless Class-D amplifiers, every aspect of the TS412 has been designed for superb reliability, whether used for mobile gigs and performances or fixed installation. Each speaker features a lightweight, sleek, black box design that can be used as the application demands—freestanding, as a wedge monitor, pole-mounted or suspended via the integrated suspension points.


  • 2,500W for powerful performance
  • Free Alto App (iOS/Android) for remote configuration and control
  • Bluetooth audio streaming direct from device
  • Onboard DSP with four Speaker Use modes (including Custom EQ via App)
  • True Wireless Stereo speaker linking via Bluetooth
  • Integrated 3-channel mixer with dual XLR 1/4" combo inputs, mic/line switches and independent level controls
  • XLR Mix output, Speaker Use, and Sub Size Controls
  • 12" driver, 2.5" (63 mm) high-temperature voice coil
  • 1" exit ceramic driver with 1.4" (35 mm) coil
  • Lightweight enclosure for easy transport, setup and installation
  • Versatile design—pole-mountable, wedge monitor or flown application with integral M10 suspension points
  • Powerful and efficient Class-D amplifiers with fanless cooling design to run cleaner, quieter and with greater longterm reliability
  • Designed and tuned in the USA

Order the TS412 12" 2-way powered loudspeaker now.


TS412 12" 2-Way Powered Loudspeaker With Bluetooth, DSP and App Control Specifications:

Output Power
  • 2,500W
Low-Frequency Driver
  • 12" driver
  • 2.5" (63 mm) high-temperature voice coil
  • 800W RMS @ 2 ohms
High-Frequency Driver
  • 1.0" exit ceramic driver
  • 1.4” (35 mm) coil
  • 450W @ 4 ohms
Crossover Frequency
  • 2kHz
Maximum SPL
  • Peak dBSPL @ 1 m: 132dB
  • Continuous dBSPL @ 1 m: 129dB
Frequency Response
  • 53Hz–20kHz (+/–3dB)
Frequency Range
  • 44Hz–20kHz (–10dB)
Horn Coverage
  • 90° horizontal x 60° vertical (nominal)
  • XLR + 1/4” (6.35 mm) TRS combo inputs (balanced): 2
  • XLR output (link): 1
  • IEC power cable input: 1
Input Impedance Line
  • Balanced: 10 kohms
  • Unbalanced: 20 kohms
  • Mic: 1.2K
  • Line Gain/Volume Control Range
  • –∞ to 0dB, +4dBu nominal
  • +10dBu for max output
Mic/Inst. Gain/Volume Control Range
  • –∞ to +50dB
USB Charging Port
  • 5V
  • 2.1A
  • Power switch
  • 2 gain control knobs (1 per input)
  • 2 Mic/Line switches
  • Bluetooth volume control encoder
  • Pairing button
  • Stereo Link button
  • Sub Size button
  • Speaker Use button
  • 1 Input Channel Signal/Limit/Clip LED (Green = Ch1/2 Signal) (Yellow = Ch1/2 Limiter) (Red = Ch1/2 Output Clipped)
  • 1 Bluetooth LED (blue)
  • 1 Link LED (orange)
  • 4 DSP Presets LED (green)
  • 3 HPF LED (green)
Power Connection
  • IEC
  • 100–120V, 50–60Hz
  • 220–240V, 50–60Hz
  • 1,100W
  • 100–120V T15AL AC250V
  • 220–240V T6.3AL AC250V
  • Electronic clip
  • Thermal
  • Transducer overdrive
  • Enclosure: Injected Molded Enclosure and Perforated Metal Grille
  • Mounting/Installation: Standard 36 mm pole socket, flown application with integral M10 suspension points, or in a wedge monitor position
  • Operating Temperature: –10°C to 45°C (14°F to 113°F)
  • Dimensions (HxWxD): 23.9" x 13.9" x 13.8"
  • Weight: 33 lb.

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