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Alto Truesonic TS115 Speaker

  • Product Description
  • Product Video
  • Product Accessories
  • Warranty

Versatile Cabinet Design
All TRUESONIC 2-way speaker cabinets have been designed with versatility and longevity in mind. They feature a durable, lightweight polypropylene enclosure that is stand mountable for weekend music gigs and flyable for more permanent installations. What's more, they have a trapezoidal design, which greatly decreases the resonance of the standing wave in the cabinet for a more true and exact sound reproduction. The TRUESONIC TS115 is the perfect solution for musicians and DJs on the move and halls, malls, and houses of worship alike.

Total Transparency
The TRUESONIC Series was designed from the ground up to be the most transparent loudspeaker money can buy. Rigorous testing and thousands of hours of listening have gone into making sure that what you pump into a TRUESONIC speaker is exactly what you get out. Everything you see (and some things you don't) - from internal signal path and components used to the sculpted cabinet and meticulously designed waveguide - was developed in service of the principle of accurate, transparent sound.

Super Efficient Drivers
The drivers in the ALTO TRUESONIC TS115 are designed to make sure that virtually no energy is wasted. That translates to more of the power from the amplifier actually working to generate sound rather than heat, giving the speaker better real world performance than other speakers with comparable published specifications. The ALTO TRUESONIC TS115 offers a 15" LF driver (2.5" voice coil) and a 1" HF driver (Neodymium Driver).

Full Metal Grille
You can never be too safe around the stage. We know stuff happens that you just can't predict. Sometimes it's the flying drumstick, a falling microphone stand or worse. Every TRUESONIC speaker comes with a complete front grille from top to bottom that protects not only your low frequency driver, but your high frequency driver as well. With TRUESONIC speakers, you get extra peace of mind knowing that whatever comes at your sound system, we've got it covered, literally.


Power System: 250 W continuous / 500 W Program / 1000 W Peak
Frequency Response (-10dB): 48 Hz-18 KHz
Sensitivity (1w @ 1mt): 97 dB SPL
Impedance: 8 ohms (nominal)
Maximum SPL @ 1m: 121 dB continuous/ 127 dB peak
Coverage ( HxV ): 80 Degrees/100 Degrees x 60 Degrees nominal
Transducer Low: 15" woofer, 2.5" voice coil
Transducer High: 1" neodymium driver
Passive Crossover: 2.15 kHz at 12 dB / oct, with HF protection
Enclosure Construction: Trapezoidal, with floor monitor capability. Injection molded, polypropylene enclosure, with perforated steel grille
Input Connectors: Two Parallel SPK NL-4 for Input / Thru
Mounting: Integrated Std. pole-mount / two handle / two eyebolt point

Dimensions (WxLxH): 430.3mm x 385mm x 679mm
Weight: 29 lb

1000 Watts peak power rating
500 Watts program / 250 Watts continuous
15" LF transducer with 2.5" voice coil
1" neodymium HF driver
Dual electronic driver protection circuits
Lightweight, trapezoidal cabinet with handles
Two parallel Speakon NL4 jacks for input and thru connection
Use as a traditional upright loudspeaker or as floor wedge monitor
Stand/pole mountable or flyable
Designed and tuned in the USA


Alto warrants its products to be free from defects for 1 year from the date of purchase.