The Alto TS412 is a 2500W 12-inch 2-way powered speaker with Bluetooth, DSP and app control.
2500W for powerful performance
FREE Alto app (iOS/Android) for remote setup and control
Bluetooth® audio streaming directly from the device
Built-in DSP with 4 speaker usage modes (inc. Custom EQ via App)
True wireless stereo speaker link via Bluetooth®
Integrated 3-channel mixer with two ¼" XLR combo inputs, mic/line switches and independent level controls
XLR mix output, speaker usage and sub-size controls
12-inch driver, 2.5-inch (63 mm) high-temperature voice coil
1" output ceramic conductor with 1.4" (35mm) coil
Lightweight housing for easy transport, setup and installation
Versatile design - pole mountable, corner monitor or pendant application with integrated M6 hanging points
Powerful, efficient Class D amplifiers with a fanless cooling design for cleaner, quieter operation with greater long-term reliability
Designed and tuned in the USA
Alto Professional TrueSonic TS4
Stronger. Clearer. More intelligent. Where TS3 exceeded expectations, TS4 completely redefines them. Building on the heritage of our best-selling TrueSonic speakers, the TS4 Series delivers increased power, clearer sound and advanced Bluetooth features including streaming, speaker linking and control applications. Compact, lightweight and built for reliability, the new TS4 Series makes it easy to achieve great live sound at every event.
True sonic power
Whether you need powerful vocals or a club-shaking bass performance for a DJ set, TS4 speakers deliver loud, clear, room-filling sound for any application. With a 12-inch woofer and 1.4-inch compression driver, the TS412 delivers 2500W of peak power and clarity in equal measure.
FREE Alto app for remote setup and control
Available free for Android and iOS, the Alto app allows convenient remote control of Bluetooth levels, speaker usage modes, custom EQ and sub-size selection. Additionally, the True Wireless Stereo link can be configured remotely via the app to save time during setup.
Integrated 3-channel mixer
Each TS4 has a built-in 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 requiring additional hardware or adjustment. Just plug it directly into the back panel and you're up and running.
Simple Bluetooth streaming and speaker pairing
The ideal high-powered streaming solution, TS4's built-in Bluetooth connectivity makes it easy to pair with your laptop, phone or tablet and pump up the music in no time. With True Wireless Stereo, you can stream Bluetooth audio to two TS4 speakers in perfect stereo without the need for cables.
DSP modes for the best sound in every application
The TS4's three preset "Speaker Use" modes allow you to optimize the speaker for any application, so you'll get great sound every time at the press of a button. For even more control over your sound, you can set up a custom EQ in the Alto app and remotely adjust settings from any listening point in the room. You can even save your favorite custom EQ setting directly to the TS4 for easy recall whenever you need it.
Versatile and reliable
From high-quality drivers to fanless Class-D amplifiers, every aspect of the TS4 Series has been designed for exceptional reliability, whether used for gigs and mobile performances or fixed installation. Each speaker features a sleek, lightweight black box design that can be used depending on application requirements - freestanding, as a corner monitor, pole mounted, or suspended via the built-in hanging points.
Technical specifications
Output power: 2500W
Low frequency drivers: 12.0 inch driver, 2.5 inch (63mm) high temperature voice coil. 1 x 800 W RMS at 2 Ω.
High frequency: 1.0" output ceramic driver with 1.4" (35mm) coil. 1 x 450 W at 4 Ω.
Crossover frequency: 2 kHz
Maximum SPL: 132 dB (peak), 129 dB (continuous) (dB-SPL at 1 m)
Frequency response: 53 Hz – 20 kHz (+/-3 dB)
Frequency range: 44 Hz – 20 kHz (-10 dB)
Horn coverage: 90° horizontal x 60° vertical (nominal)
Connectors:
(2) XLR + 1/4" (6.35 mm) TRS combo inputs (Balanced)
(1) XLR output (Link)
(1) IEC power cable entry
Input impedance Line: 10 KΩ balanced, 20 KΩ unbalanced, Mic: 1.2 K
Line gain/volume control range: -∞ to 0 dB, +4 dBu nominal, +10 dBu for maximum output
Mic/Inst. Gain/volume control range: -∞ to +50 dB
USB Charging Port: 5V 2.1A
Controls: Power switch, (2) gain control knobs (1 per input), (2) mic/line switches, Bluetooth volume control encoder, pairing button, stereo link button, sub button size, speaker use button
Indicators: (1) Input channel signal/limit/clip LED (green = channel 1/2 signal) (yellow = channel 1/2 limiter) (red = channel 1/2 output clipped)(1) Bluetooth LED ( blue)(1) link LED (Orange)(4) DSP Presets LED (Green)(3) HPF LED (Green)
Power connection: IEC
Voltage: 100-120V, 50/60Hz;
Consumption: 1100W
Fuse: 100-120V T10AL AC250V;
Protection: Electronic clip, thermal and transducer overload protection
Housing: injection molded housing and perforated metal grille
Mounting/Installation: Standard 36mm pole socket, pendant application with integrated M10 suspension points, or in a corner monitor position
Operating temperature: -10°C to 45°C (14°F to 113°F)
Dimensions (height x width x depth) 23.9" x 13.9" x 13.8" / 606.5 x 353.5 x 350.5 mm
Weight: 33.0 pounds. / 15 kg