Alto Truesonic TS218S Active Subwoofer

589.99 (including VAT @ 23%)

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Item on order with our supplier

This item has been ordered from our supplier, and we are currently awaiting delivery.

We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery to you: 3rd November 2016
FREE Delivery available.

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30 day money back guarantee included

30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

All Products are new unless stated, and include a minimum of one year warranty.

Some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging, and in the case of software, unregistered. These items include:

  • Software
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  • In-ear Monitors
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  • Mouthpieces, Reeds etc… for Woodwind and Brass instruments
  • Mouth / Lip Care Products

We are unable to accept returns of any custom made items designed to work together as a unique package, such as computer system built to a customer’s personal specifications. Exceptions may only be possible with prior agreement of the vendor, and may be subject to a cancellation fee.

Optional: 3 year warranty: €32.45
(Includes 60 day money back guarantee)


The product price includes a one year warranty and 30 day money back guarantee.

However, the Gear4music extended warranty scheme provides an enhanced service, and is designed to offer a higher level of protection than many 'free' warranties offered by some retailers and manufacturers.

The highlights of this enhanced warranty service are:

  • Warranty is extended to 3 years from the date of delivery.
  • Our Money Back guarantee is extended from 30 days to 60 days (terms apply after 30 days)
  • Collection and delivery costs are included for the first two years
  • Claim 50% cash back on the cost of the policy after 3 years if it has not been used!
  • Warranty is transferable if the item is re-sold
  • Loan or replacement equipment will be provided if the product isn't repaired within 30 days
  • If an item can not be repaired, a similar alternative product or cash discount (as defined in this policy) will be offered
  • The policy can be cancelled within 30 days, and at any time after that for a pro-rata discount

Please note that this extended warranty is currently only available on products sold within the EU or EEA, and is subject to the terms and conditions as detailed on the extended warranty certificate provided.

For customers in outlying areas of the country, the price of the Extended Warranty may be marginally higher, due to the potential for higher collection and redelivery transport costs.

This enhanced warranty is in addition to the standard Gear4music and manufacturer warranty policies, and the Gear4music terms and conditions of trade. No statement or condition of sale contained within these terms affects or restricts your statutory rights as defined under the Consumer Contracts Regulation 2014.

Product Ref: 77885

  • 1250 Watts of Peak Power Output
  • 18-Inch High-Excursion Woofer
  • (2) XLR+1/4-Inch Combo Inputs + (2) Balanced XLR Line Outputs
  • Rugged, Internally-Braced Front-Ported Plywood Cabinet
  • Integrated 35mm Speaker Pole Socket and M10 Rigging Points

Alto Truesonic TS218S Active Subwoofer

The Alto Production TS218S 18" Active Subwoofer is a compact 1250W (peak power output) sub-woofer (625 W continuous). The portable and ergonomic design of the TS218S makes this subwoofer ideal for transport between venues. Featuring an integrated 35mm speaker pole socket and M10 rigging points, this subwoofer can be easily positioned in the ideal location for you. The sturdy design is constructed from an internally-braced front-ported plywood cabinet, and you can expect standard IO, such as 2 XLR+1/4-inch combo inputs and 2 balanced XLR line outputs.

Product Ref: 77885

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Full Description

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Detailed Sound

For those performance situations where additional low-frequency output and punch are required, even beyond the already-impressive bass capability of the TS2 full-range speakers, the new TS2 powered subwoofers are the perfect solution. The 18" woofer provides detailed lows which do not suffer from any interference from a fan, due to the new high-efficiency Class D amplifiers with a passive cooling design. No fan means the speaker runs cleaner, quieter and has greater long-term reliability

Increased Bass Response

You can pair the Alto Production TS218S with any full-range speaker system to extend the bass response and dramatically enhance the overall impact of the music being played. With two XLR+1/4-inch combo inputs and 2 balanced XLR line outputs, you can plug the TS218S into your existing speaker setup to gain a great performance boost, and stunning bass.


  • 1250 watts of peak power output
  • Custom engineered high-efficiency Class D amplifiers with passive cooling design – no fan means the speaker runs cleaner, quieter and has greater long-term reliability
  • 18-inch high-excursion woofer
  • (2) XLR+1/4-inch combo inputs + (2) balanced XLR line outputs
  • Polarity Reverse, Full-Range Output and Extended LF controls
  • Electronic clip, thermal and transducer overdrive protection
  • Rugged, internally-braced front-ported plywood cabinet
  • Integrated 35mm speaker pole socket and M10 rigging points


  • Output Power: 1250 W peak, 625 W continuous
  • Transducer Low: 18” (457 mm) woofer, 3” (76 mm) voice coil
  • Frequency Response: 35–95 Hz (-10 dB)
  • Maximum SPL: 131 dB (@ 1 m)
  • Connections: (2) XLR+1/4” (6.35 mm) inputs; (2) XLR outputs; (1) IEC power cable input
  • Input Level: -4 dBu (nominal)
  • External Controls: Volume control, signal/clip limiter with LED, polarity-reverse switch, high-pass filter bypass switch with LED, extended low-frequency switch with LED, power switch with LED
  • Electronic Protections: Electronic clip, thermal and transducer overdrive protection
  • Enclosure: Internally braced plywood cabinet; 35 mm mounting pole socket ontop panel
  • Power Connection: Standard IEC cable
  • Input Voltage: 110–120, 220–240 V AC; 50/60 Hz
  • Consumption: 450W
  • Fuse: T6.3AL AC250V (110–120 V) or T3.15AL AC250V (220–240 V)
  • Dimensions (W x D x H): 26.8” x 20.7” x 24.8” / 680 x 525 x 630 mm
  • Weight: 70 lbs. / 32 kg