18” TS318S ALTO PROFESSIONAL Amplified Subwoofer

Add a rock-solid foundation to your music. There are times when your sound system needs extra low-frequency output and punch.
For those situations, Alto Professional is proud to offer the TS318 powered subwoofer. This subwoofer extends the bass response of virtually any full-range speaker, relieving that speaker of the difficult task of having to reproduce low frequencies. A system with an impressive wide-range response characterized by dramatic, impactful low frequencies and effortless, distortion-free mids and highs. The listening audience will hear everything with perfect clarity, from the lowest synth tones to the highest percussive chimes and everything in between. The TS318S features a rugged, long-excursion woofer mounted in a solidly reinforced ported enclosure, computer-optimized for powerful low-frequency performance.

• Output power: 2000W peak, 1000W continuous.


• Amplifier: High efficiency class D amplifier.


• Transducer: 18” (457 mm) woofer, 3” (76 mm) voice coil.


• Frequency response: 44 Hz – 86 Hz (- 3 dB).


• Frequency range: 35HZ - 97Hz (-10dB).


• Maximum SPL: 133 dB (@ 1 m) 131 dB continuous (dB SPL @ 1 m).


• Connections: (2) XLR+1/4” (6.35 mm) inputs; (2) XLR outputs;


• (1) IEC power cable inlet.


• Input Level: Line +4 dBu (nominal).


• External controls: volume control,


• DSP output mode switch, polarity reversal switch,


• extended low frequency switch, power switch.


• Indicators: Signal limiter/clipping LED,


• six DSP output mode LEDs, reverse polarity LED,


• Extended low frequency LED, Power switch LED.


• Electronic Protections: Electronic clip, thermal protection


• and transducer overdrive.


• Power connection: IEC with mains fuse.


• AC Input Voltage: 100,110-120,220–240V, 50/60Hz.


• This product has a 1-year warranty against factory defects.