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Review Summary
Active Loudspeaker
2-Way
2500 W Peak
1x 12" / 30.5 cm Woofer
Voice Coil: 2.5" / 6.3 cm
1x 1" / 2.5 cm Ceramic Compression Driver
Voice Coil: 1.4" / 3.6 cm
Low Frequency (LF)
800 W RMS / 1600 W Peak
Mid Frequency (MF)
450 W RMS / 900 W Peak
Class-D
1x 12" / 30.5 cm Woofer
Voice Coil: 2.5" / 6.3 cm
1x 1" / 2.5 cm Ceramic Compression Driver
Voice Coil: 1.4" / 3.6 cm
44 Hz to 20 kHz (-10 dB)
53 Hz to 20 kHz (±3 dB)
132 dB (Peak)
129 dB (Continuous)
90° H x 60° V
Signal Limiter, Thermal, Transducer Overdrive
2000 Hz
High-Pass Filter
Peak Limiter
No
Voicing Modes (Adjustable via Optional Software)
2x Combo XLR-1/4" TRS Line/Mic Input
1x XLR 3-Pin Link/Mix Output
No
1x USB-A (Device Charging)
Bluetooth
Yes: Android & iOS
App Name: TrueSonic TS4
Functionality: Adjust Settings, Remote Control, Setup, View Live Feed
100 to 120 VAC, 50 / 60 Hz (T 10 A L 250 V)
220 to 240 VAC, 50 / 60 Hz (T 5 A L 250 V)
1x IEC Input
1100 W
Black
Stand Mount
1 x 1.42" / 36 mm Pole Socket (Bottom)
Suspension Points
2 x M10 Fly Point (Top)
1x Each Side
Metal Grille, Plastic
23.9 x 13.9 x 13.8" / 60.7 x 35.3 x 35.1 cm
33 lb / 15 kg
The Alto Professional 12-inch active loudspeaker is engineered for high-impact performance and versatility, delivering a massive 2500W peak (1250W RMS) through efficient Class D amplification. At its core, a 12-inch low-frequency driver with a 2.5-inch voice coil works in tandem with a 1-inch ceramic high-frequency compression driver to produce crystalline audio across the spectrum. Despite this raw power, the unit remains remarkably portable thanks to its lightweight enclosure, which supports various setups including pole-mounting, use as a wedge monitor, or suspension via integrated M10 points. The fanless cooling system ensures the speaker runs quietly and reliably, making it ideal for both mobile DJs and permanent installations.
Modern connectivity and precise control are central to this speaker?s design, featuring a 3-channel mixer with dual XLR-1/4" combo inputs and a dedicated XLR mix output. Users can take full advantage of Bluetooth® audio streaming and True Wireless Stereo linking for a cable-free stereo image. For advanced tuning, the FREE Alto App provides remote configuration of the on-board DSP, which includes four "Speaker Use" modes and a custom EQ to tailor the sound to any environment. Whether you are adjusting sub-size controls or fine-tuning the mic/line switches, this speaker offers a professional-grade interface that adapts to the specific needs of any venue.