Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
4.5 (11)
$699.00 $629.00 $70.00 · All time low
Guitar Center
5.0 (1)
$699.00 $629.00 $70.00 · All time low
Amazon
4.5 (82)
$629.00
Reverb
$570.98 New
$585.89 Used
Musician's Friend
5.0 (1)
$699.00 $629.00 $70.00 · All time low
B&H
4.0 (1)
$699.00 $629.00 $70.00 · All time low
Thomann
4.8 (12)
$549.00 $539.00 $10.00 · All time low
Gear4Music
£520.00

Price History

Based on price data from 6 merchants for "Alto Professional TS15S TrueSonic Sub 2500-Watt 15" Active Subwoofer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash the true power of your live sound setup with the Alto Professional TS15S TrueSonic Sub, a 2500-watt powerhouse designed to elevate any performance. This 15" active subwoofer is engineered to deliver tight and punchy low-end frequencies, making it an essential component for DJs, sound engineers, and live performers who demand the best from their PA systems. The TS15S integrates seamlessly into any setup, courtesy of its dual XLR and 1/4-inch combo inputs, as well as XLR thru outputs, allowing for straightforward connectivity and expansion.

Built for both durability and performance, the TS15S features a rugged, internally braced MDF cabinet with a mark-resistant splatter-spray finish, ensuring it withstands the rigors of constant use while still looking great. Its high-efficiency Class-D amplifier ensures that every performance is backed by consistent power and clarity, letting you focus on the music, not the equipment. Enjoy versatility with user-selectable EQ tunings and a phase alignment selector switch, which allow you to tailor the sound to your specific venue and performance needs.

Whether you’re in a concert hall, club, or house of worship, the Alto Professional TS15S promises to provide a solid foundation to your sound, ensuring your audience experiences every note, beat, and bassline as intended.

Key Features:

  • 2500W peak power output
  • High-efficiency Class-D amplifier
  • 15" driver with a 3" high-temperature voice coil
  • Rugged, internally braced front-ported MDF cabinet
  • Dual XLR and 1/4-inch combo inputs
  • Dual XLR thru outputs for linking
  • User-selectable EQ tunings (Off, Live, DJ)
  • Phase alignment selector switch (0°/90°/180°/270°)
  • Integrated 36mm pole socket
  • Electronic clip, thermal, and transducer overdrive protection

Product specs

Powered Yes
LF Driver Size 15" Woofer
Total Power 2500W Class D
Inputs 2 x XLR-1/4" combo
Outputs 2 x XLR (full-range thru)
Frequency Range 31Hz-123Hz (-10dB)
Frequency Response 36Hz-110Hz (-3dB)
Maximum Peak SPL 132dB SPL @ 1m
Signal Processing EQ Presets (off, Live, DJ)
Features Polarity Switch (0°/90°/180°/270°)
Mounting Options Floor, 36mm Pole Sock
Power Source Standard IEC AC cable
Enclosure Material MDF
Height 21.3"
Width 20.6"
Depth 24.7"
Weight 87.1 lbs

FAQs

What type of amplifier does the Alto Professional TS15S subwoofer use?

The Alto Professional TS15S subwoofer uses a high-efficiency Class-D amplifier, delivering a total power of 2500 watts.

What kind of inputs and outputs does the Alto TS15S subwoofer have?

The Alto TS15S subwoofer features two XLR-1/4" combo inputs and two XLR thru outputs for easy linking with other audio equipment.

Is the Alto Professional TS15S subwoofer suitable for live DJ performances?

Yes, the Alto Professional TS15S subwoofer is suitable for live DJ performances, offering user-selectable EQ tunings such as "Live" and "DJ" to optimize sound output for different environments.

What is the frequency response range of the Alto TS15S subwoofer?

The frequency response of the Alto TS15S subwoofer ranges from 36Hz to 110Hz (-3dB), providing deep bass suitable for various audio applications.

How does the Alto TS15S subwoofer handle phase alignment?

The Alto TS15S subwoofer includes a Phase Alignment selector switch, allowing users to adjust the phase in four increments: 0°, 90°, 180°, and 270° for optimal sound integration with other speakers.

What mounting options does the Alto Professional TS15S subwoofer offer?

The Alto Professional TS15S subwoofer can be mounted on the floor or on a 36mm pole socket, providing flexibility in setup for different venues.

RL Mini Sounds System

RL Mini Sounds System

New 2024 Alto TS15S powered subwoofer and TS415 unboxing and sound test

Video thumbnail for New 2024 Alto TS15S powered subwoofer and TS415 unboxing and sound test by RL Mini Sounds System

New 2024 Alto TS15S powered subwoofer and TS415 unboxing and sound test

RL Mini Sounds System

RL Mini Sounds System

Video thumbnail for Alto TS4 Secret Settings Revealed with TS15s Sub by expert island

Alto TS4 Secret Settings Revealed with TS15s Sub

expert island

expert island

Reviews

PROS

  • Packs a powerful punch with impressive low-end bass for events

  • Cleans up house mix by offloading bass from main speakers

  • Loud, tight bass response enhances live sound setups

  • Recessed handles and controls minimize damage risk during transport

  • Rugged enclosure finish withstands dings and scratches

  • Provides a significant upgrade to smaller setups, filling large venues effectively

  • Offers clean, deep bass for diverse musical genres

  • Half the price of some competitors without compromising on sound quality

  • Great for large audiences, maintaining sound quality even at a distance

  • Seamlessly integrates with existing audio setups for an enhanced full-range experience

CONS

  • Weighs approximately 90 lbs, challenging to transport without assistance

  • Lacks a built-in crossover, requiring external equipment or reliance on full-range speakers

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Alto Professional TS15S TrueSonic Sub 2500-Watt 15" Active Subwoofer.

Comparisons

  • EV ELX118P is preferred over the Alto TS15S for reliability and output, especially when paired with QSC K12s.

    Source

Use cases and applications

  • A single 15" sub, like the Alto TS15S, may not suffice for parties over 150 people; owners often prefer 18" subs for larger events.

    Source
  • When paired with smaller tops, 15" subs can comfortably handle events with up to 150 attendees.

    Source
  • The sub pairs effectively with Mackie SRM V212s, receiving positive feedback during live performances.

    Source

User experience

  • Smaller setups with 10" tops and 15" subs are favored for compactness and efficiency in mobile gigs.

    Source
  • The Alto TS15S subwoofer is noted to improve in loudness and depth after several gigs as the woofer breaks in.

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  • Users report that the TS15S does not sound muddy, contrary to earlier models which required breaking in.

    Source

Features and functionality

  • Owners find that 15" subs provide adequate low-end for wedding-style gigs but may lack power for high-energy dance parties.

    Source
  • It's noted that the TS15S doesn't achieve very low frequencies, which is a trade-off for its price point.

    Source

Build quality

  • The subwoofer is considered slightly heavy and large, yet manageable for most users.

    Source

Mods and upgrades

  • Replacing the stock woofer with an Eminence Lab 15 is suggested for those seeking to rival higher-end powered subs.

    Source

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