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Alto Professional TS318S 2000W 18" Powered Subwoofer - Store Demo
Expected August 31, 2025
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Add a rock-solid foundation to your music.There are times when your sound system needs additional low-frequency output and "punch." For those situations, Alto Professional proudly offers the TS318 powered subwoofer. This subwoofer extends the bass response of virtually any fullrange speaker, relieving that speaker of the difficult task of having to reproduce the low bass frequencies. The result? A system with stunning wide-range response characterized by dramatic, impactful low frequencies and effortless, undistorted mids and highs. The listening audience will hear everything with perfect clarity, from the lowest bass synth tones to the highest percussion bells and everything in between. TS318S features a rugged, long-excursion woofer mounted in a solidly-braced ported enclosure, computer-optimized for powerful low-frequency performance. The enclosure itself is made from a dense wood composite. This strong, resonantfree material has virtually perfect acoustic characteristics, which ensures that the subwoofers' output is always clear and impactful. Conventional enclosures with flex-prone thin metal or plastic walls actually rob the speaker of acoustic impact by dissipating the driver's energy as cabinet vibration. A sturdy, braced wood composite enclosure doesn't waste the driver's motion as cabinet resonance.
Strong, clear output is only half the battle, however in order for a subwoofer to be part of an ideal speaker system, it has to blend seamlessly with the companion speaker. This is where the Alto Professional's TS318S truly excels. All TS300-series subwoofers have a choice of six selectable DSP output modes, so the subwoofer's frequency response and crossover frequency are perfectly-matched to the speaker it's being used with. Four of these six output options match the subwoofer perfectly with Alto TS2 and TS3 full-range speakers, while the other two output options (Hi-Pass or Bypass mode) ensure a perfect match even with non-Alto full-range speakers. Precision-engineered for performance; Alto's computer design techniques feature advancements such as Finite Element Analysis (FEA), which enables us to optimize the speaker's magnetic structure and maintain a tight voice coil gap for maximum sensitivity. The voice coils themselves have extremely tight windings that ensure maximum utilization of the input signal and Alto's adhesives exhibit unrivaled consistency and durability under high temperature conditions for unsurpassed system reliability. TS318S features an on-board 2000watt amplifier (1000 watts continuous) with proprietary limiting circuitry that provides electronic clip, thermal and transducer overload protection, ensuring that the system always sounds clean and clear, no matter how hard it's pushed.
Alto Professional TS318S 2000W 18" Powered Subwoofer Features:
- 2000 watts of peak power output.
- High-efficiency Class D amplifier.
- Transducer: 18-inch with 3-inch high-temperature voice coil.
- (2) XLR+1/4-inch combo inputs + (2) balanced XLR line outputs.
- XLR outputs, with six discreet DSP output modes for ideal matching with companion full-range speaker.
- Polarity Reverse switch and Extended LF switch for increased EQ control.
- Electronic clip, thermal and transducer overdrive protection.
- Rugged, internally-braced front-ported MDF cabinet with integrated 36mm pole socket.
- Rugged, mar-resistant splatter-spray finish always looks good, even with heavy use.
- Designed and tuned in the USA.
Alto Professional TS318S Product Specifications:
Output Power: 2000 W peak, 1000 W continuous
Amplifier: High-efficiency Class D amplifier
Transducer: 18" (457 mm) woofer, 3" (76 mm) voice coil
Frequency Response: 44Hz - 86 Hz (- 3 dB)
Frequency Range: 35HZ - 97Hz (-10 dB)
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 input
Input Level: Line +4 dBu (nominal)
External Controls: Volume control, DSP output mode switch, polarity-reverse switch, extended low-frequency switch, power switch
Indicators: Signal/clip limiter LED, six DSP output mode LEDs, polarity-reverse LED, extended low-frequency LED, power switch LED
Electronic Protections: Electronic clip, thermal and transducer overdrive protection
Enclosure: Internally braced MDF cabinet; 36 mm mounting pole socket on top panel. Rugged, mar-resistant splatter-spray finish always looks good, even with heavy use
Power Connection: IEC with Mains Fuse
AC Voltage Input: 100,110-120,220-240 V, 50/60 Hz
Consumption: 1000 W Fuse: T10AL AC250V (100-120 V) or T5AL AC250V (220-240 V)
Dimensions (H x W x D): 26.8" x 21" x 24.7" / 680mm x 533mm x 628mm
Weight: 86.4 lbs. / 39.2 kg
Design Origin: Designed and tuned in the USA
Accessories: TS318S Cover
Each TS318S Retail Box Includes:
(1) Alto Professional TS318S 2000W 18" Powered Subwoofer
*Please note: Customer return/Store display items are not brand new and may have minor imperfections. Due to the nature of a "Customer return item" we cannot guarantee that all box components listed, will be included. Because of this, the item is discounted accordingly and sold at close to cost or below. IDJNOW does guarantee that you will receive all pertinent components for the item to function in Its most basic form (usually just a power cord) and guarantees the item to be free from defect for 30 days from the day you receive it.