Alto Professional TX3 Series TX315 15-Inch 700W Powered Loudspeaker

A workhorse 15-inch bi-amped powered PA with 700W of Class-D power, a precision 90° x 60° horn, and a multi-angle trapezoidal cabinet that works just as well on a pole as a wedge monitor.

A Smart Fit For You

The TX315 is the kind of powered speaker that just shows up and gets the job done — gig after gig, room after room. The 15-inch long-excursion woofer paired with a 1-inch titanium-diaphragm HF compression driver delivers strong bass weight and crisp top end, and the precision 90° x 60° horn keeps energy aimed where you actually want it: at the audience. Bi-amped Class-D power means each driver gets its own dedicated amplifier and active crossover, so you get cleaner sound at sustained volume than a passive cabinet. The simple back panel keeps controls focused — a balanced XLR mic/line input with volume knob, a contour switch that lifts the low and high ends for music playback, a link output for chaining a second speaker, and a ground-lift switch to kill hum when you encounter dirty power. Trapezoidal cabinet, top-mount and side handles, and a 36 mm pole socket round it out.

Key Highlights

• 700W peak (350W continuous) Class-D power
• 15-inch long-excursion LF driver with 2-inch voice coil
• 1-inch titanium-diaphragm HF compression driver in a precision horn
• Bi-amplified 2-way design with active crossover and EQ
• 90° H x 60° V coverage pattern for consistent audience dispersion
• Balanced XLR/TRS combo input with mic/line switching and volume control
• XLR link output for daisy-chaining additional speakers
• Contour switch with +3 dB low- and high-frequency boost for music playback
• Ground-lift switch to eliminate unwanted hum or buzz from dirty power
• Integrated analog limiter and overload protection circuitry
• Trapezoidal cabinet for upright pole-mount or wedge monitor positioning
• Lightweight injection-molded polypropylene enclosure
• Full-sized steel grille for complete driver protection
• Standard 36 mm pole socket plus dual side handles
• Designed and tuned in the USA

Why You'll Love It

Great Fit For

• Mobile DJs running weddings, parties, and corporate events
• Singer-songwriters, duos, and small bands needing a complete portable PA
• Working musicians who want one speaker that does double duty as a monitor
• Worship teams and presenters needing reliable, easy-to-operate sound
• Bars, restaurants, and small clubs looking for affordable main speakers
• Schools, gyms, and event venues running multi-purpose sound systems
• Rental houses adding road-ready, simple-to-deploy speakers to their inventory

Sound and Coverage

The TX315 delivers the kind of full-range, no-nonsense sound that working performers actually need. The 15-inch woofer handles low-mid weight and authority without needing a sub for many small to mid-size gigs, and the titanium-diaphragm HF compression driver keeps vocals clear and present without harshness. The 90° H x 60° V horn pattern keeps energy focused on the audience instead of bouncing off ceilings and walls, which matters a lot in real rooms where reflections can muddy a mix. Flip the Contour switch on for music playback or DJ work and you get a slight boost in the lows and highs for that more flattering, dance-floor-ready voice — leave it off for vocal-heavy gigs and the response stays flat and natural.

Specifications