Active Compliance Management (ACM)

ACM the first major advance in vented box subwoofer design in decades.

ACM is a patent-pending, unique hybrid design that combines the attributes of direct radiating and band-pass configurations to reduce distortion and increase sound pressure output while decreasing box size.

ACM technology utilizes a unique hybrid configuration in which two woofers share a common vented chamber. One woofer’s frontal radiation is direct, while the second woofer is set at 90 degrees and drives a bandpass vented chamber that has fourth-order response characteristics. Each woofer has its own amplifier and DSP control. This sophisticated combination of physics and DSP yields a substantial increase in amplitude over conventional designs, with the summed output of drivers and vents maintaining flat phase response and exhibiting low distortion, while occupying a more compact enclosure.

ACM changes the effective compliance of air in the common chamber.
This is caused by the asynchronous signals to each driver.

hs-20-acm-ill-animation-06-ex2-nodelay-1

With out delay both drivers act as a normal dual driver vented system and produce symmetric pressure in the internal chamber, but interfere with each other’s acoustic output.

hs-20-acm-ill-animation-06-ex2-1

The delay on the bandpass loaded woofer produce summation of the acoustic output but produces asymmetric pressure in the internal chamber.

hs-20-acm-ill-06

ACM produces significantly more low-frequency output from a smaller enclosure.

Illistration-Typical-v-hs-221-02

The plot above illustrates the advantages of ACM over simple vented designs, the hs-221 produces the same SPL with a half octave lower response than industry leading dual 21 inch vented systems.

hs-20 Dual 10-inch ACM Ultra Compact Subwoofer System

hs-20 Dual 10-inch ACM Ultra Compact Subwoofer System

hs-20-back

  • Active Compliance Management: Patent-pending hybrid design combines both band-pass and vented alignments into a single, compact footprint for more output and definition.
  • Tons of horsepower: Onboard amplifier supplies 500W pure sine wave power (800W “peak” power) to each woofer.
  • Purpose-designed transducers: Dual 10-inch, long-excursion woofers with dual layer, inside/outside wound 64 mm voice coils
  • Built for the road: Premium birch plywood enclosure with extensive internal bracing and a highly-durable Dura Coat finish.
  • SystemVUE software: Mac and Windows compatible software provides access to networks and device-level parameters such as speaker protection, input/output levels, volume, mute, delay and input sources

Learn more about the hs-20 Dual 10-inch Ultra Compact Subwoofer System

hs-25 Dual 15-inch ACM Compact Subwoofer System

hs-25 Dual 15 inch ACM Subwoofer System

  • Amazingly high  output form a copmact system utlizing Active Compliance Management: A hybrid design that combines both band-pass and vented alignments into a single, compact footprint to produce significantly more output than conventional dual 15-inch designs.
  • Tons of horsepower: amplifier supplies 2x 830W pure sine wave power (4000W “peak” power) to each woofer.
  • Standard IP for easy networking: Fully compatible with standard IP networks. Simply plug in, and the system will automatically connect to virtually any kind of IP configuration. Users can access and monitor network and device-level parameters through our SystemVUE software.
  • SystemVUE software: Mac and Windows compatible SystemVUE software provides access to all VUE devices on the network as well as device level parameters such as speaker protection, input/output levels, volume, mute, delay and even input sources.

Learn more about hs-25 Dual 15 inch ACM Compact Subwoofer System

hs-28 Dual 18-inch ACM Subwoofer System

hs-28 Dual 18 inch ACM Subwoofer System

  • Active Compliance Management: Patent-pending hybrid design combines both band-pass and vented alignments into a single, compact footprint for more output and definition.
  • Tons of horsepower: Dual amplifier modules supply 830W pure sine wave power (2000W “peak” power) to each woofer.
  • Purpose-designed transducers: Dual spider long-excursion woofers features large, 4-inch voice coils for increased power handling and reduce power compression.
  • Standard IP for easy networking onboard: .Simply plug-in, and the system automatically connects to virtually any kind of IP configuration.
  • SystemVUE software: Mac and Windows compatible software provides access to networks and device-level parameters such as speaker protection, input/output levels, volume, mute, delay and input sources
  • Built for the road: Premium birch plywood enclosure with extensive internal bracing and a highly durable Dura Coat finish.
  • Impressive output-to-size ratio: Ideal for building extremely high-output and compact subwoofer arrays

Learn more about hs-28 Dual 18 inch ACM Subwoofer System

hs-221 Dual 21-inch ACM Subwoofer System

hs-221 Dual 21 inch ACM Subwoofer System (*NEW) 

  • Ideal for Large Format Touring, Dance Clubs, and EDM Events
  • 143 dB SPL peak output in free field (149 db SPL half space environment – ground plane)
  • Flat Response down to 25 Hz in ELF (Extended Low Frequency Mode)