Powerful 18-Inch Subwoofer for Deep, Controlled Bass
The
Alto TX18S delivers exceptional low-end performance and system flexibility with a DSP-enhanced 900-watt Class D amplifier and an 18-inch woofer designed to reproduce tight, deep bass across a range of live and installed audio applications. Whether you're a DJ, band, AV provider, or venue owner, the TX18S is your ideal subwoofer for clean and consistent low-frequency support.
Alto TX18S Competitive Differences
- 18-inch high-output woofer with 3-inch voice coil for deep, responsive bass performance
- 900W Class D amplifier with built-in DSP for clean power and speaker protection
- User-selectable EQ modes (Music and Live) for fast system tuning
- Selectable low-pass filters at 80Hz, 100Hz, and 120Hz to suit any PA configuration
- Polarity Reverse switch ensures phase alignment with full-range tops
- Internally braced MDF cabinet with splatter-resistant finish and front port for maximum output and reduced turbulence
- Integrated 36mm pole socket for use with full-range speakers
- Side handles for easy transportation and setup
Alto TX18S Description
The
TX18S is Alto Professional’s largest and most capable subwoofer in the TX Series, built to deliver full-bodied low frequencies in venues ranging from houses of worship to nightclubs and live stages. Powered by a 900-watt Class D amplifier and loaded with a rugged 18-inch woofer featuring a 3-inch high-temp voice coil, the TX18S produces thunderous bass with precision and clarity.
For easy integration, the TX18S includes
Music and
Live EQ voicings, which tailor the sub’s response to your venue or event. A
Polarity Reverse switch helps align phase for maximum system coherence, and
selectable low-pass filters let you define how the sub interacts with your top boxes. Built-in DSP protection safeguards your components, even at maximum output.
This subwoofer’s durable construction includes an
internally braced MDF enclosure, steel grille, and heavy-duty splatter-spray finish—making it suitable for both touring rigs and fixed installations. Dual combo inputs and XLR outputs make it easy to daisy-chain multiple speakers.
Whether you're expanding your mobile rig or reinforcing a permanent install, the TX18S offers impressive punch, professional features, and unmatched value.
TX18S Features
- 900W peak Class D power amplifier for efficient, high-output performance
- 18” woofer with 3” voice coil for extended bass reproduction
- Music and Live EQ voicing modes
- Selectable low-pass filter options: 80Hz, 100Hz, 120Hz
- Polarity reverse switch for phase alignment with full-range speakers
- Internally braced MDF cabinet with front port design
- Full metal grille and splatter-resistant finish
- 36 mm pole socket for top speaker mounting
- Dual combo XLR+¼" inputs and XLR thru outputs
TX18S Specifications
- Amplifier Power: 900W peak @ 4Ω
- Driver: 18" woofer with 3" voice coil
- Frequency Response (-3 dB): 35 Hz – 100 Hz
- Frequency Range (-10 dB): 27 Hz – 111 Hz
- Max SPL: 137 dB @ 1m
- Inputs: 2 x XLR + ¼” combo
- Outputs: 2 x balanced XLR
- Enclosure: Internally braced MDF with ported design
- Mounting: 36mm pole socket on top panel
- Finish: Splatter-resistant paint
- Cooling: Natural convection
- Power Input: IEC connector
- Dimensions (H x W x D): 26.7” x 20.9” x 24.7” (678.2 x 530.9 x 627.4 mm)
- Weight: 93.0 lbs (42.2 kg)
The TX18S is the go-to solution for musicians, DJs, and venues seeking deep, controlled bass without complexity.
ALTO TX18S
(Alto TX-18S)
