The Main Sequence System: Ex Machina Soundworks & Danville Signal Processing Collaboration

Experience exceptional accuracy in sound with the Main Sequence System, a groundbreaking speaker ecosystem designed by Ex Machina and Danville Signal Processing.

A Perfect Harmony of Science and Sound

When brilliant minds from physics, acoustics, material science, loudspeaker design, and digital signal processing unite, something magical happens. The Main Sequence System is exactly that—a masterclass in precision audio engineering aimed at delivering impeccable accuracy.

Ex Machina Soundworks brought their expertise in loudspeaker design, acoustic engineering, and proprietary DSP algorithms to the table. Partnering with Danville Signal Processing, revered in audiophile circles for their DSP Nexus processor platform, they crafted the processing architecture that powers the system. Purifi contributed their state-of-the-art drivers and amplification technology. Together, these elements form a fully integrated loudspeaker ecosystem, not just a mix of parts, but a single finely tuned instrument.

The Core: Loudspeakers and DSP Processor

At the heart of the system lies a pair of MTM (midwoofer-tweeter-midwoofer) loudspeakers crafted in Durasein. Each speaker is outfitted with custom dual Purifi PTT10.0X woofers and a custom SEAS C18 coaxial driver. This driver features Composite Sound Metamodal TX TPCD technology, enhancing both the midrange and high-frequency diaphragms for a seamless soundstage.

Driving these speakers is a customized DSP Nexus 8-channel processor, specifically developed for this collaboration. It runs exclusive Ex Machina algorithms including impulse response, FIR, IIR, and LR4 digital zero-phase crossovers. Time correction is impressively precise—accurate to within half a sample at 192 kHz—ensuring every sound arrives exactly when it should.

The DSP processor and two matching amplifier chassis come housed in bespoke enclosures, designed to aesthetically complement the speakers and finished to order. The amplification side is handled by Purifi 6525SA modules, delivering a solid 450 watts per channel to power the system effortlessly.

A Unified Audio Ecosystem

The Main Sequence System isn’t sold piecemeal but as a complete, integrated package: loudspeakers, amplifiers, and DSP processor bundled as one harmonious unit. Priced at $50,000, it targets those who take audio reproduction seriously and want the very best in fidelity.

Technical Specifications at a Glance

• Frequency Response: Linear from 28 Hz to 30 kHz ±1.5 dB, with -6 dB at 20 Hz
• Maximum Continuous SPL: 117 dB at 1 meter, 112 dB at 50 Hz
• Linear Phase Response: ±15° from 20 Hz to 30 kHz
• THD+N: Less than 0.5% power average between 100 Hz and 30 kHz
• Coverage Angle: 90° by 90° conical

Precision Crossovers and Drivers

• Crossovers:
  • 200 Hz Subwoofer to Midrange, digital LR4 zero-phase
  • 2 kHz Midrange to Tweeter, digital LR4 zero-phase
• Driver Complement:
  • 176 mm (7”) midrange and 25 mm (1”) tweeter custom SEAS/Ex Machina Composite Sound Metamodal TX™ mid/high coaxial driver
  • Custom twin 270 mm (10.5”) Purifi PTT10X subwoofers
• Amplifiers:
  • Eight Purifi 1ET6525SA 2nd generation Eigentakt Error Correction modules delivering 450 watts per channel.

Why This System Stands Out

The Main Sequence System is a testament to what happens when innovation meets a shared passion for perfect sound. It’s not just about raw power or flashy specs—it’s about the marriage of cutting-edge DSP technology with exceptional loudspeaker craftsmanship. Together, they produce a sound that’s clear, precise, and incredibly immersive.

For those of us who’ve spent years chasing elusive audio nirvana, this system feels like a trusted companion—offering nuance and detail that invite endless exploration of our favorite music. Whether spinning classic vinyl or streaming high-res digital files, the Main Sequence System promises a listening experience that’s as close to the original studio recording as it gets.

“The Main Sequence System is what happens when the right minds in physics, acoustics, material science, loudspeaker design, and digital signal processing build toward a single objective: accuracy.”
— From the creators of the Main Sequence System

FAQ

• What makes the Main Sequence System unique compared to other loudspeaker systems?
  It’s a fully integrated system combining specialized loudspeakers, amplifiers, and a customized DSP processor designed to work as one precise instrument rather than separate components.
• Who manufactures the drivers and amplification in this system?
  Purifi supplies the custom woofers and high-performance amplification modules used in the system.
• Can the system be customized in terms of finish or enclosure design?
  Yes, the DSP processor and amplifier chassis come in bespoke enclosures finished to order, allowing for a tailored aesthetic.
• What kind of sound coverage does the system provide?
  It offers a 90 by 90 degrees conical coverage angle, providing a wide and even soundstage.
• Is the Main Sequence System suitable for both home and professional use?
  While primarily aimed at audiophiles and serious music lovers, its precision and power make it adaptable for professional listening environments as well.

Elevate your listening space with a piece of audio artistry—shop your favorite album cover posters at our store to complement your new sound system and celebrate your passion for music.

Explore our collection here