Alto Professional TS408 (Single) Active 2-Way 2000 Watt PA Speaker

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Key Info

The TS408 builds on the legacy of Alto's TrueSonic series to fill any room with powerful, clear sound.

Room-filling sound

The TS408 builds on the legacy of Alto's TrueSonic series to fill any room with powerful, clear sound. This is delivered with an 8-inch woofer, a 1.4 compression driver, and 2000W of class-leading power and clarity. As a result, the TS408 is ideal for any application - whether as a vocal PA or for a bass-heavy DJ set.

Free App for remote control and configuration

On both Android and iOS, the Alto provides you with remote control over Bluetooth levels, Speaker modes, Custom EQ, Sub Size selection and more. And you can also configure True Wireless Stereo linking using the app, saving you valuable time.

3-channel mixer built-in

With an integrated 3-channel mixer, the TS408 is easy to get up and running. This includes two Mic/line input channels and a dedicated Bluetooth channel. Each Mic/Line channel has a combo XlR/TRS jack, so can be used with microphones, instruments, and line-level signals without using additional hardware or having to make adjustments.

Stream and link with Bluetooth

Built-in Bluetooth connectivity makes the TS408 a streaming powerhouse. Connect your laptop, phone or tablet and get the music pumping straight away. You can also use the Bluetooth connectivity to use the True Wireless Stereo Function and add two TS4 speakers in perfect stereo.

Shape your sound with DSP modes

With three preset "Speaker Use" modes you can optimise the TS408 for almost any application - all at the touch of a button. And if you want more control, you can use the app for custom EQ, and adjust settings from any point in the venue.

Both versatile and reliable

High-quality drivers and fanless class D amplifiers and much much more make the TS408 a versatile and flexible choice for mobile gigs, performances and fixed installation. It has a lightweight, sleek build and can be used pole-mounted, as a wedge monitor, freestanding and suspending with integrated suspension points.


  • Powerful 2000W performance
  • Configure and control remotely with the free Alto App
  • Stream directly from your device via Bluetooth®
  • DSP built-in with four speaker use modes and custom EQ via the app
  • Pair two speakers with true wireless stereo speaker linking with Bluetooth®
  • Versatile 3-channel mixer has dual XLR and 1/4-inch combo inputs
  • XLR mix output as well as speaker use and sub size controls
  • Has a 8" driver with 2.0"(50mm) high-temperature voice coil
  • For high frequencies, a 1" exit ceramic driver with a 1.4" (35mm) coil
  • Enclosure is made to be lightweight for easy transport, set up, and installation
  • Can be set up in a number of ways: pole-mounted, wedge monitor and flown with M6 suspension points
  • Class D amplifiers are both powerful and efficient with a fanless cooling design

Technical Specifications

  • Output Power: 2000W
  • Low-Frequency Driver: 8.0” driver, 2.0” (50 mm) high-temperature voice coil. 1 x 650 W RMS @ 2 Ω.
  • High Frequency Driver: 1.0” exit ceramic driver with 1.4” (35 mm) coil. 1 x 350 W @ 4 Ω.
  • Crossover Frequency: 2 kHz
  • Maximum SPL: 130 dB (peak), 127 dB (continuous) (dB-SPL @ 1 m)
  • Frequency Response: 62 Hz – 20 kHz (+/- 3 dB)
  • Frequency Range: 52 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 input
  • Input Impedance Line: 10 KΩ balanced, 20 KΩ unbalanced, Mic: 1.2K
  • Line Gain/Volume Control Range: -∞ to 0 dB, +4 dBu nominal, +10 dBu for max 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, Blue-tooth volume control encoder, Pairing button, Stereo Link button, Sub Size button, Speaker Use button
  • Indicators:
  • (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
  • Voltage: 100-120V, 50/60Hz; 220-240V, 50-60Hz
  • Consumption: 900W
  • Fuse: 100-120V T10AL AC250V; 220-240V T5AL AC250V
  • Protection: Electronic clip, thermal, and transducer overdrive protection
  • Enclosure: Injected Moulded Enclosure and Perforated Metal Grille
  • Mounting/Installation: Standard 36 mm pole socket, flown application with integral M6 suspension points, or in a wedge monitor position
  • Operating Temperature: 10°C to 45°C (14°F to 113°F)
  • Dimensions (height x width x depth): 17.2” x .10.1” x 9.6 / 436 x 256 x 245 mm
  • Weight: 20.7 lbs. / 9.4 kg
Model Name:
TS408 (Single)
Alto Professional

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