AUDAC BASSO118/B – 18" Ultra-High Power Infrasubwoofer is backordered and will ship as soon as it is back in stock.
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What is the AUDAC BASSO118/B infrasubwoofer?
The AUDAC BASSO118/B is a 18" ultra-high power infrasubwoofer built for nightclubs, concert venues, theme parks and large event spaces. It handles 1500 W continuous (AES) at 8 Ω and reaches 131 dB max SPL, with response down to 23 Hz (-10 dB). A pure carbon fiber cone and AUDAC's AeroVent porting keep the bass clean at high levels.
How does the AUDAC BASSO118/B infrasubwoofer work?

The BASSO118/B pairs a 18" carbon cone driver on dual suspension and a 4" high-excursion voice coil with AUDAC's AeroVent exponential port, which is designed to cut airflow noise as the driver moves large volumes of air. The cabinet is tuned to 33 Hz, giving 30 Hz – 120 Hz (-3 dB) with 99 dB sensitivity. A multi-layer polyurea coating protects the 18 mm plywood cabinet, and a high-current terminal block with link-through simplifies multi-sub arrays. Drive it from a high-power amplifier channel through a DSP with proper high-pass and limiter settings. Sibling models: BASSO112, BASSO115.
How the AUDAC subwoofer lineup compares:
| Model | Driver | Power (AES) | Response (-3 dB) | Max SPL | Weight | Use |
|---|---|---|---|---|---|---|
| NOBA8 | 8" | 100 W | 90–350 Hz (±3 dB) | 108 dB | 19.3 lb | Wall-mount bass for small rooms |
| ARCHI10 | 10" | 225 W | 69–120 Hz | 124 dB | 24.7 lb | Architectural, bars & hospitality |
| ARCHI210 | 2 x 10" | 450 W | 65–120 Hz | 128 dB | 50.9 lb | Larger hospitality spaces |
| ARCHI10X | 10" infra | 350 W | 43–95 Hz | 117 dB | 56.2 lb | Deep bass, IP55 option |
| BASO18 | 18" | 900 W | 32–300 Hz (±3 dB) | 125 dB | 90.6 lb | Venues, portable or flown |
| BASSO112 | 12" infra | 1000 W | 33–120 Hz | 124 dB | 57.3 lb | Clubs, venues |
| BASSO115 | 15" infra | 1500 W | 37–120 Hz | 130 dB | 77.2 lb | Clubs, concert spaces |
| BASSO118 | 18" infra | 1500 W | 30–120 Hz | 131 dB | 130.3 lb | Largest venues |
What are the key features of the AUDAC BASSO118/B infrasubwoofer?
- 18" carbon fiber cone — light, stiff and durable for clean, low-distortion bass.
- AeroVent porting — exponential vent design minimizes airflow noise.
- 1500 W continuous — 3000 W program and 6000 W peak at 8 Ω.
- 131 dB max SPL — high output for large venues.
- Extends to 23 Hz — true infrasonic extension (-10 dB).
- Polyurea-coated plywood — tough 4-layer finish over 18 mm plywood.
- Link-through terminals — high-current terminal block for chaining subs.
- Warranty — backed by a 5-year AUDAC manufacturer warranty.
Where is the AUDAC BASSO118/B infrasubwoofer typically used?
- Auditorium
- All-hands room
- Multi-purpose room
- House of worship
Technical Specifications
| Model | BASSO118/B – black |
| Speaker type | 18" infra-sub, AeroVent |
| Power | 1500 W continuous (AES) / 3000 W program / 6000 W peak |
| Impedance | 8 Ω |
| Sensitivity (1W/1m) | 99 dB |
| Max SPL (AES) | 131 dB |
| Frequency response (-3 dB) | 30 Hz – 120 Hz |
| Frequency range (-10 dB) | 23 Hz – 200 Hz |
| Port tuning | 33 Hz |
| Driver | 18" carbon cone, dual suspension, 4" high-excursion voice coil |
| Connectors | High-current terminal block with link-through |
| Dimensions | 29.84 x 21.65 x 31.42 in (excl. feet) |
| Weight | 130.29 lb |
| Construction | 18 mm multiply plywood |
| Finish | 4-layer polyurea coating |
| Front | 2.5 mm zinc-plated perforated steel, powder-coated, foam-backed |
| Operating temperature | -20 °C to 70 °C |
| Color | Black |
| Warranty | 5 years |
Frequently Asked Questions
Does the BASSO118/B need an amplifier?
Yes. It is a passive 8 Ω subwoofer and needs a power amplifier channel sized to its continuous (AES) rating, plus a DSP or crossover. See AUDAC amplifiers in the AUDAC collection.
How many BASSO118/B units do I need?
It depends on room size, target level and placement. We model coverage and level as part of system design.
Is it suitable outdoors?
This is the indoor version. For outdoor use, choose the BASSO118/OB.
What warranty comes with the BASSO118/B?
AUDAC covers it with a 5-year manufacturer warranty.
Can Creation Networks install the BASSO118/B?
Yes. We design, install, tune and support AUDAC systems nationwide. Call (888) 230-3661.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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