Alto Professional TX12SX 12" 900 Watt Powered Subwoofer

The Alto TX12SX is an affordable subwoofer delivering powerful bass for small to mid-sized spaces, perfect for musicians and businesses, with easy setup and lasting durability.

$399.00

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Free 12 Month Extended Warranty

45 Day return

Item can Ship to Canada

Oversized

Free 12 Month Extended Warranty

You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.

45 Day return

Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.

Canadian Shipping Information

Welcome Canadian musicians! Buying your gear from AMS is as easy as going to a local music store, with more selection and more than competitive prices!

Items with this logo are eligible to ship to Canada. Please note that you will be responsible for payment of brokerage fees, duties and other import taxes applicable to your order.

NOTE: Free shipping offers do not apply to Canadian orders. Please be aware of custom fees - such as taxes and duties - when your order arrives. Since these fees vary from location to location, CUSTOMS FEES ARE NOT INCLUDED IN SHIPPING CHARGES. Please check with your local customs office for more information on the fees in your areas. Refusal to pay these fees will result in an undeliverable order. If returned, we do not refund shipping charges and may assess restocking fees to cover return shipping expenses.

Oversized Items

Unfortunately, oversized items cannot be shipped using expedited ship methods. They can ONLY be shipped via Ground or Truck delivery.

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Alto Professional TX12SX 12" 900 Watt Powered Subwoofer

Looking to add some serious low-end thump to your PA system without breaking the bank? The Alto Professional TX12SX is your ticket to earth-shaking bass that you can feel in your chest. This 900-watt powered subwoofer delivers ground-pounding frequencies that fill small to mid-sized venues with the kind of sonic depth that turns a good performance into an unforgettable experience.

Here's the beautiful part: the TX12SX doesn't just sound incredible — it's refreshingly simple to use. With intuitive controls, flexible connectivity, and rugged construction that laughs in the face of heavy use, this subwoofer is built for musicians and small business owners who need reliable, powerful bass extension without the complexity or price tag of high-end units. The TX12SX delivers professional-grade low end that both audiences and performers will appreciate.

Power and Performance That Packs a Punch

When it comes to delivering deep, punchy bass that fills the room without breaking a sweat, the TX12SX subwoofer truly stands out.

900W Class-D Power Amplifier: This ultra-efficient amplifier delivers massive power without the heat and bulk of traditional amps. You get concert-level bass without needing a forklift to move it or an industrial cooling system to keep it running.

12-Inch High-Output Woofer with 2-Inch Voice Coil: The beefy 12-inch driver features a substantial 2-inch voice coil that handles punishment like a champ. This combination produces tight, controlled bass that extends your PA's low-frequency response dramatically — no flabby, undefined rumble here.

DSP-Based EQ and Protection: Built-in digital signal processing ensures your subwoofer always sounds its best while protecting the components from overload. Think of it as having a sound engineer and bodyguard rolled into one intelligent system.

Dial In Your Perfect Sound

Forget complicated setup procedures and endless tweaking. The TX12SX gives you the control you need without overwhelming you with options you don't.

Music and Live EQ Voicings: Two dedicated EQ modes let you optimize your sound for either recorded music playback or live performance. It's like having two subwoofers in one — each perfectly tuned for its specific application.

Selectable Low Pass Filter (80Hz / 100Hz / 120Hz): Choose your crossover point based on your main speakers and room acoustics. This flexibility ensures seamless integration with virtually any PA system, creating a cohesive full-range sound rather than disjointed frequency bands.

Polarity Reverse: Sometimes phase alignment makes all the difference between boomy bass and tight, punchy low end. The polarity reverse switch lets you flip the phase at the touch of a button to achieve perfect synchronization with your mains.

Built Tough, Designed Smart

The TX12SX doesn't just perform — it looks sharp and stands up to the rigors of regular use without complaint.

Ported Design with Full Metal Grille: The front-ported cabinet design maximizes bass output while the heavy-duty metal grille protects your investment from errant mic stands, careless load-ins, and other hazards of live performance. Style meets substance in the best possible way.

Rugged, Internally Braced MDF Cabinet: This isn't particle board held together with hope. The TX12SX features a solid MDF enclosure with internal bracing that eliminates cabinet resonance and unwanted vibrations. The 36mm pole socket lets you mount satellite speakers directly on top for a compact, integrated system.

Flexible Connectivity: Two XLR +1/4-inch combo inputs and two balanced XLR outputs give you multiple routing options. Link multiple subwoofers, send signal to your main speakers, or integrate the TX12SX into complex PA configurations with ease.

Convenient Side Handles: Strategically placed handles make loading and positioning the subwoofer a one-person job instead of a two-person wrestling match.

Your Budget-Friendly Bass Solution

The Alto Professional TX12SX delivers professional-grade low-frequency extension at a price point that makes sense for working musicians and small venues. With its combination of powerful output, intelligent features, and road-ready construction, this subwoofer proves you don't need to spend a fortune to feel the bass.

Alto Professional TX12SX Features: