Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated .

Sweetwater
4.5 (10)
$1,799.00
Guitar Center
5.0 (1)
$1,799.00
Amazon
$1,619.10 Used
Reverb
5.0 (2)
$1,436.96 2 available New
Musician's Friend
$1,799.00
B&H
$1,799.00

Price History

Based on price data from 4 merchants for "Dynaudio 18S Ultra-Low Dual 9.5" 500-Watt Active Subwoofer Speaker". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Elevate your audio experience with the Dynaudio 18S Ultra-Low Dual 9.5" 500-Watt Active Subwoofer Speaker, engineered to deliver profound depth and precision to your studio setup. This subwoofer isn't just about adding bass; it's about achieving an unprecedented level of clarity and control over your low-end frequencies, making it an essential tool for any serious musician or sound engineer.

Designed with dual-opposing 9.5" MSP+ Hybrid Drive units, the 18S ensures powerful and punchy bass that reaches as low as 16Hz. This dynamic range allows you to feel the full impact of your music, from the rumble of a low B string to the deep thud of a meticulously recorded kick drum. The onboard 500-watt Class D amplifier provides ample power, ensuring that your sound is both robust and clear.

But the 18S is more than just power; it's smart, too. Integrated advanced DSP technology automatically aligns with popular Dynaudio monitors, turning your two-way systems into seamless three-way setups. This ensures that your mixes are accurate and translate perfectly across all playback systems. With flexible RCA and XLR connectivity, time-delay adjustments, and a built-in three-band parametric EQ, this subwoofer integrates effortlessly into any studio environment, allowing for precise customization to suit your acoustic needs.

Key Features:

  • Onboard 500-watt Class D amplifier
  • Dual-opposing 9.5" MSP+ Hybrid Drive long-throw woofers
  • Frequency response: 16Hz—230Hz ±3dB
  • Advanced DSP with updatable presets for Dynaudio monitors
  • Flexible time- and phase-aligned integration
  • Built-in 3-band parametric EQ
  • I/O connectors: balanced XLR, unbalanced RCA
  • Auto On/Off for energy efficiency

Product specs

Powered Yes
Speaker Size Dual 9.5"
Driver Type Magnesium Silicate Polymer+ Hybrid cone
Total Power 500W
Frequency Range 16Hz-230Hz (±3dB)
Crossover Frequency 50Hz-150Hz
Maximum Peak SPL 110dB @ 1m
Input Types 2 x XLR (L/R), 1 x Dual RCA Stereo
Output Types 2 x XLR (L/R), 1 x Dual RCA Stereo
USB 1 x Type A (service)
Other I/O 1 x 1/8" (trigger in)
Height 13.1"
Width 18.5"
Depth 10.6"
Weight 45.2 lbs.

FAQs

What is the frequency range of the Dynaudio 18S Ultra-Low Subwoofer?

The Dynaudio 18S Ultra-Low Subwoofer offers a frequency range of 16Hz to 230Hz (±3dB), providing deep, accurate bass reproduction suitable for professional studio environments.

How does the Dynaudio 18S integrate with other studio monitors?

The Dynaudio 18S features advanced DSP with presets for a wide range of Dynaudio Pro studio monitors, ensuring seamless integration and optimal sound performance.

Can the Dynaudio 18S be used in a daisy-chain setup?

Yes, the Dynaudio 18S has a Master/Slave feature that allows for daisy-chaining multiple subwoofers, making it ideal for complex studio setups requiring enhanced low-end support.

What are the input and output options available on the Dynaudio 18S?

The Dynaudio 18S offers 2 x XLR (L/R) and 1 x Dual RCA Stereo inputs, along with 2 x XLR (L/R) and 1 x Dual RCA Stereo outputs, providing versatile connectivity options for various audio equipment.

Does the Dynaudio 18S have any built-in EQ features?

Yes, the Dynaudio 18S includes a three-band parametric EQ, allowing users to tailor the subwoofer's sound to their specific acoustic environment and personal preferences.

Reviews

PROS

  • Delivers true, articulate bass with zero cabinet resonance

  • Accurate low-end reproduction down to sub 20Hz notes

  • Enhances studio sound with built-in time alignment and automatic crossover settings

  • Provides a powerful 500 watts of clear, precise bass

  • Transforms listening experience with clean, tight bass for studio or home theater

  • Pairs seamlessly with other Dynaudio speakers for an incredible soundstage

  • Flat response ideal for professional mixing and production

  • Compact size with chest-thumping bass clarity

  • Revolutionizes sound in small studio spaces, making mixes more honest

CONS

  • Requires decent acoustic treatment for optimal performance

Critic Reviews

Dynaudio 9S & 18S Subwoofers Review - For A Detailed Reveal

musictech.com

Dynaudio's 18S subwoofer delivers impressive depth and clarity, essential for producers seeking to enhance their bass mixing capabilities. With a robust 500-watt power and dual 9.5-inch woofers, it offers a substantial low-end extension suitable for medium to large studio spaces. The built-in DSP presets streamline integration with Dynaudio monitors, though broader compatibility might require manual tweaks. While the £1,400 price tag could be steep for some, the 18S offers a compelling upgrade for those needing precise bass control. However, its benefits are more pronounced in larger environments, making it a must-have for expansive audio setups.

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