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Alto Professional TX12S 900-watt 12-inch Powered Subwoofer

900W Active Subwoofer with 12" LF Driver and DSP
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Item ID: TX12S
Alto Professional TX12S 900-watt 12-inch Powered Subwoofer
Price:$399 and 00 cents
Special Financing - Ends Aug 2, 2026. $12/month with 36 month financing*

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Alto Professional TX12S 900-watt 12-inch Powered Subwoofer
$399.00
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Alto Professional TX12S 900-watt 12-inch Powered Subwoofer
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Price:$399 and 00 cents
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900 Watts of Bass-boosting Performance

Do you need to bolster your bass? Of course, you do — thanks to its burly 900-watt Class D amplifier, the Alto Professional TX12S is definitely up to the task. This 12-inch powered subwoofer is a true behemoth, capable of filling any small- to mid-sized venue with ground-shaking low end. Moreover, the TX12S’s DSP-enhanced design provides a bevy of pro-level features, including EQ and system protection, Music and Live EQ voicings, a selectable lowpass filter, and polarity reverse. Here at Sweetwater, we’re impressed with the generous I/O on the TX12S, which includes XLR and 1/4-inch line inputs and balanced XLR line outputs. The TX12S is truly roadworthy, boasting a rugged front-ported MDF cabinet with internal bracing, a full-metal grille, and a mar-resistant splatter-spray finish. Finally, the TX12S includes side handles for easy transport and a 36mm pole socket for straightforward installation. When you need an easy-to-deploy sub that’s built to last, the Alto Professional TX12S stands ready to deliver the goods.

Alto Professional TX12S Features:

  • 900W of ground-shaking low-end power for small- and mid-sized venues
  • 12-in. long-excursion driver with a 2-in. voice coil can easily handle the lowest lows
  • DSP-driven EQ and system protection
  • Music and Live EQ voicings provide simplified system refinement
  • Selectable lowpass filter and polarity reverse offer effective system optimization
  • Flexible XLR and 1/4-in. line inputs and balanced XLR line outputs
  • Rugged front-ported MDF cabinet with internal bracing, a full-metal grille, and a mar-resistant splatter-spray finish
  • Side handles make transport easy
  • 36mm pole socket provides straightforward installation

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Tech Specs

  • Powered: Yes
  • LF Driver Size: 12" subwoofer
  • Total Power: 900W Class D
  • Inputs: 2 x XLR-1/4" combo
  • Outputs: 2 x XLR
  • Mounting Options: Pole
  • Power Source: Standard IEC AC cable
  • Height: 20"
  • Width: 15.9"
  • Depth: 15.9"
  • Weight: 49.3 lbs.
  • Manufacturer Part Number: TX12SXUS

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Reviews

Best Value
First time using the 12" Alto Sub was an outdoor gig. Wasn't sure it would get it done but man; this thing gave us some real low end we were missing. I have JBL 10s over them and the mix was great. The crossover works just as it should. Will be buying a second one!
Exceeded expectations
What a great sub woofer – especially for the price! I mainly use one of the alto busker's for most my gigs, but sometimes I need a larger sound for certain events. Adding this sub made all the difference. It's compact, but powerful features make it The right addition for a solo Musician set up
Music background: Engineer, Producer, Recording artist
Great product and service!
Love the new sub and brian was an awesome salesman!
Music background: DJ
awesome sub
Sub awesome!!!
Nice price and performance
I wanted something much lower cost to pair with my QSC CP8s and this sounds really good with them. Im sure a QSC would sound phenomenal but at this price point Im getting the performance I need for my acoustic trio