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The Alto Professional TX18S is the ultimate low-frequency powerhouse, delivering earth-shaking bass for large venues, DJs, musicians, houses of worship, and businesses. With its 900W Class-D amplifier and 18-inch high-output woofer, this DSP-enhanced subwoofer ensures tight, punchy low-end that can be felt as much as it is heard.
Designed for both portability and permanent installation, the TX18S is built with rugged durability, simple controls, and seamless integration into any PA system. Whether you’re bringing it to gigs or installing it in a club, gym, or venue, this versatile and powerful subwoofer guarantees a deep, clean bass response with minimal effort.
Alto Professional TX18S Features
900W Class-D Power: Efficient and powerful low-end reinforcement for any PA system.
18-inch High-Output Woofer: Handles deep bass frequencies with clarity and power.
3-inch Voice Coil: Provides tight, accurate bass response even at high volumes.
DSP-Enhanced EQ & Overload Protection: Ensures optimal sound and reliability.
Music & Live EQ Voicings: Instantly adjusts for different performance environments.
Selectable Low Pass Filter: Choose 80Hz, 100Hz, or 120Hz to match your speakers.
Polarity Reverse Switch: Helps correct phase alignment for optimal sound.
Dual XLR + ¼-inch Combo Inputs: Compatible with a variety of PA setups.
Balanced XLR Line Outputs: Easily connect multiple speakers for expanded coverage.
Front-Ported MDF Cabinet: Rugged, resonant-free design for powerful bass projection.
Road-Ready Durability: Full metal grille, reinforced construction, and splatter-spray finish.
Standard 36mm Pole Socket: Mount a top speaker for a complete PA setup.
Extreme Bass, Ultimate Versatility
The TX18S is engineered for professionals who need massive low-end in a portable yet powerful package. Whether you're setting up for a club night, live band, fitness class, or corporate event, this subwoofer adapts to your needs effortlessly.
With its Live and Music EQ voicings, you can quickly tailor the sound for your specific performance:
Music Mode Delivers smooth, punchy bass, perfect for DJs and pre-recorded tracks. Live Mode Optimized for bands and vocal-driven performances, providing tight, controlled low-end response.
Additionally, the selectable low-pass filter (80Hz, 100Hz, or 120Hz) allows for seamless integration with any top speaker setup—including other Alto Professional TX Series speakers.
Road-Ready Build for Gigging & Installations
Designed for heavy use, the TX18S is built to last with a front-ported, fiberboard MDF enclosure, reinforced with internal bracing to eliminate resonance and ensure deep, distortion-free bass. The splatter-spray finish keeps the sub looking great, even after years of use. With side-mounted handles and a lightweight design, transporting and setting up your subwoofer has never been easier.
Enclosure: Front-ported MDF with metal grille and splatter-spray finish
Pole Mount: 36mm socket for top speaker mounting
Handles: Side-mounted for easy transport
The Ultimate Bass Reinforcement for Any Setup
The Alto Professional TX18S is powerful, versatile, and built to perform. Whether you need tight, controlled low-end for live music or booming bass for high-energy DJ sets, this 900W subwoofer delivers unmatched performance at an incredible value.
Upgrade your PA system with the TX18S—bass that hits hard and sounds phenomenal!
We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout. This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!
Free Delivery Available on Selected Products
Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65
For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.
Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.
If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.
*Please note, we cannot accept returns of:
Special/Custom Orders - Any order that is custom or has been personalised.
Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
Software & Media - Any software or media that has been opened or registered via physical or digital means.
Any product containing a valve, e.g valve amps are only covered for 90 days from purchase.
If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.
Store Orders
If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.
product
https://www.pmtonline.co.uk/alto-tx18s-active-pa-speaker76152Alto TX18S Active PA Speakerhttps://www.pmtonline.co.uk/media/catalog/product/2/3/238094-339825-alto-tx18s-front-0.jpg499.99499.99GBPInStockproducts/paliveproducts/palive/paspeakersproducts/palive/paspeakers/pasubwoofersbrands/altoshipping-tiers/pallet-shippingstore-stock/bristolstore-stock/cardiffliverpoolliverpool/pa-livein-stock1044500921490352795281571057174106128310445487152725710The Alto Professional TX18S is the ultimate low-frequency powerhouse, delivering earth-shaking bass for large venues, DJs, musicians, houses of worship, and businesses. With its 900W Class-D amplifier... <p>The <strong>Alto Professional TX18S</strong> is the ultimate low-frequency powerhouse, delivering earth-shaking bass for large venues, DJs, musicians, houses of worship, and businesses. With its 900W Class-D amplifier and 18-inch high-output woofer, this DSP-enhanced subwoofer ensures tight, punchy low-end that can be felt as much as it is heard.</p>
<p>Designed for both portability and permanent installation, the TX18S is built with rugged durability, simple controls, and seamless integration into any PA system. Whether you’re bringing it to gigs or installing it in a club, gym, or venue, this versatile and powerful subwoofer guarantees a deep, clean bass response with minimal effort.</p>
<h3>Alto Professional TX18S Features</h3>
<ul>
<li>900W Class-D Power: Efficient and powerful low-end reinforcement for any PA system.</li>
<li>18-inch High-Output Woofer: Handles deep bass frequencies with clarity and power.</li>
<li>3-inch Voice Coil: Provides tight, accurate bass response even at high volumes.</li>
<li>DSP-Enhanced EQ & Overload Protection: Ensures optimal sound and reliability.</li>
<li>Music & Live EQ Voicings: Instantly adjusts for different performance environments.</li>
<li>Selectable Low Pass Filter: Choose 80Hz, 100Hz, or 120Hz to match your speakers.</li>
<li>Polarity Reverse Switch: Helps correct phase alignment for optimal sound.</li>
<li>Dual XLR + ¼-inch Combo Inputs: Compatible with a variety of PA setups.</li>
<li>Balanced XLR Line Outputs: Easily connect multiple speakers for expanded coverage.</li>
<li>Front-Ported MDF Cabinet: Rugged, resonant-free design for powerful bass projection.</li>
<li>Road-Ready Durability: Full metal grille, reinforced construction, and splatter-spray finish.</li>
<li>Standard 36mm Pole Socket: Mount a top speaker for a complete PA setup.</li></ul>
<h3>Extreme Bass, Ultimate Versatility</h3>
<p>The TX18S is engineered for professionals who need massive low-end in a portable yet powerful package. Whether you're setting up for a club night, live band, fitness class, or corporate event, this subwoofer adapts to your needs effortlessly.</p>
<strong>With its Live and Music EQ voicings, you can quickly tailor the sound for your specific performance:</strong>
<p>Music Mode Delivers smooth, punchy bass, perfect for DJs and pre-recorded tracks. Live Mode Optimized for bands and vocal-driven performances, providing tight, controlled low-end response.</p>
<p>Additionally, the selectable low-pass filter (80Hz, 100Hz, or 120Hz) allows for seamless integration with any top speaker setup—including other Alto Professional TX Series speakers.</p>
<h3>Road-Ready Build for Gigging & Installations</h3>
<p>Designed for heavy use, the TX18S is built to last with a front-ported, fiberboard MDF enclosure, reinforced with internal bracing to eliminate resonance and ensure deep, distortion-free bass. The splatter-spray finish keeps the sub looking great, even after years of use. With side-mounted handles and a lightweight design, transporting and setting up your subwoofer has never been easier.</p>
<h4>Alto Professional TX18SSpecifications</h4>
<ul>
<li>Power Output: 900W Class-D amplifier</li>
<li>LF Driver: 18-inch woofer with 3-inch voice coil</li>
<li>EQ Voicings: Music and Live modes</li>
<li>Crossover Options: Selectable 80Hz, 100Hz, 120Hz low-pass filter</li>
<li>Inputs: (2) XLR + ¼-inch combo line inputs</li>
<li>Outputs: (2) balanced XLR line outputs</li>
<li>Polarity Control: Yes</li>
<li>Enclosure: Front-ported MDF with metal grille and splatter-spray finish</li>
<li>Pole Mount: 36mm socket for top speaker mounting</li>
<li>Handles: Side-mounted for easy transport</li></ul>
<h3>The Ultimate Bass Reinforcement for Any Setup</h3>
<p>The Alto Professional TX18S is powerful, versatile, and built to perform. Whether you need <strong>tight, controlled low-end</strong> for live music or booming bass for high-energy DJ sets, this 900W subwoofer delivers unmatched performance at an incredible value.</p>
<p>Upgrade your PA system with the TX18S—bass that hits hard and sounds phenomenal!</p>Alto00https://www.pmtonline.co.uk/media/catalog/product/2/3/238121-339825-alto-tx18s-side-1.jpghttps://www.pmtonline.co.uk/media/catalog/product/2/3/238093-339825-alto-tx18s-control-panel-2.jpghttps://www.pmtonline.co.uk/media/catalog/product/2/3/238092-339825-alto-tx18s-back-3.jpg816311012355add-to-cartpmt_product_status:ACTIVEsku:339825shop_bir_is_in_stock:Noshop_bri_is_in_stock:Noshop_cam_is_in_stock:Noshop_cdf_is_in_stock:Noshop_elo_is_in_stock:Noshop_lds_is_in_stock:Noshop_man_is_in_stock:Noshop_ncl_is_in_stock:Noshop_nor_is_in_stock:Noshop_ntg_is_in_stock:Noshop_nwh_is_in_stock:Noshop_oxf_is_in_stock:Noshop_whs_is_in_stock:YesACTIVENoNoNoNoNoNoNoNoNoNoNoNoYes339825AltoNoNoTX18SXUK2025-02-13
