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Alto Professional tuned the frequency range and crossover of the Truesonic subwoofer family to provide smooth, low-end sound production. The SUB15 is dedicated to the 42Hz to 125Hz range.

It also offers stereo inputs, an internal active crossover, and it’s housed in a rugged, compact, 18mm Birch plywood cabinet with durable metal recessed handles. When you’re ready to extend the frequency range of your live performance reinforcement, Truesonic subwoofers are the effective, economical, and professional choice.

Exacting details were planned and provided in the Truesonic TSSUB18 and TSSUB15. From the modern digital power amp to the internal crossover and handpicked drivers, they are class-leading subwoofers and worthy of the Truesonic name.

As active subwoofer systems, The Truesonic TSSUB18 and TSSUB15 offer a massive 18” low frequency long-excursion driver and large 15” low frequency long-excursion driver, respectively. They’re rated at a whopping 1200 watts and feature a 3” copper sandwich voice coil, which means you’ll have plenty of low-end volume when you need it most.

Technical Specifications
Truesonic SUB15

  • Output Power: 600 W Continuous RMS, 1200 W Peak
  • Crossover: L-R output with high-pass filter at 80 Hz or flat for L-R satellite
  • Max SPL @ 1m: 123 dB Continuous, 126 dB Peak
  • Frequency Response: 42 Hz – 125 Hz (@ -10 dB)
  • Low Frequency: 15” neodymium, 3” copper sandwich voice coil
  • Input Level: L-R Input Line at 0 dBu
  • Connectors:
    • Input: Left/mono 1/4” TRS or XLR; Right XLR
    • Output: Left/mono XLR; Right XLR
    • Link: Left/mono XLR; Right XLR
  • Cabinet: 18mm plywood, glued and reinforced, resistant black paint finish, metal grille, rubber feet
  • External Control: Volume control, phase switch, HPF (80Hz or bypass), power-on with LED, clip limiter with LED, ground lift
  • Power supply: 100-120V/220-240 V, 50/60 Hz
  • Dimensions (height x weight x depth): 23.3” x 17.8” x 20.2”
  • Weight (speaker only): 59.5 lbs

Box Contents

  • TRUESONIC SUB15 subwoofer
  • Power cable
  • Quickstart Guide
  • Safety Instructions & Warranty Information Booklet

Extended low frequency, long-excursion 15″ woofer
Explosive 1200W power provided by Class D switch mode power supply
18mm birch plywood vented cabinet with metal grille and recessed handles
120Hz Crossover
Dual XLR inputs and outputs for mono and stereo applications