P A R A L L E i & A T M O

Immersive. Detailed. Breathing.

Sonic Space designed to draw you in.

A Harmonious Blend of Full-Range Sonic Stage

This two-way design combines a powerful 15″ bass/mid woofer with an 8″ coaxial full-range driver.

In PARALLEi, both drivers are connected in parallel directly, with no crossover network — not even a capacitor. This radical design allows each driver to operate across its full frequency range, creating exceptionally natural and cohesive sound.

• Bass woofer: 100W RMS handling, deep and controlled bass.

• Coaxial driver: 40W RMS handling, with a neodymium magnet for precise control and damping, handling mids and highs effortlessly.

• Both drivers feature paper cones and fabric surrounds, producing a seamless and unified soundstage.

Sound character

• slightly more extended low/mid response compared to ATMO;

• delivers more “body” in the low end, while ATMO emphasizes extended highs with stunning clarity and detail;

• unified tonal balance across the full frequency spectrum thanks to the consistent use of paper cones.

Versatility and Studio use

Both models — PARALLEi and ATMO — are capable of finding their place in almost any studio environment.

Thanks to the open-baffle design, they perform exceptionally well as top-level studio monitors even in rooms with poor acoustic treatment.

• High sensitivity guarantee accurate and detailed sound reproduction, making them ideal for professional applications.

• The resulting performance is characterized by controlled bass, clear and precise mids, and well-managed high frequencies.

• High sensitivity makes PARALLEi especially efficient and versatile across different audio setups.

Phase Coherence –

the Heart of the Design

At the core of our design philosophy lies phase coherence — the key to creating a realistic, immersive soundstage by preserving the original timing of the audio signal.

• With true phase coherence, every instrument in the mix becomes clearly defined in space, bringing the performance vividly to life.

• Maintaining impulse response ensures the reproduced sound stays as close as possible to the original waveform.

Why does it matter?

Traditional speaker crossovers often introduce phase distortions, which blur the sonic image and reduce depth.

• PARALLEi and ATMO avoid this by using minimal crossover components (only a first-order capacitor on the tweeter in ATMO).

• This approach delivers a purer, more natural sound while preserving impulse response.

• Careful selection of drivers, magnets, and materials ensures optimal integration and minimal phase distortion.

Premium Components for Superior Sound

All contact surfaces are treated with DeoxIT® Gold to prevent corrosion and oxidation. This commitment to superior materials for optimal conductivity and resistance to oxidation guarantees long-lasting performance and exceptional sound quality.

Our Open Baffle system is built with uncompromising attention to detail, employing German-made Sommer Cable® copper wiring throughout - from a brand with a long-standing reputation in the pro-audio and audiophile markets.

High-quality KLEI™ Harmony binding posts with silver-plated contacts, along with banana and spade connectors from Furutech® ensure a pristine signal path.

The result is an exceptionally coherent system where drivers blend smoothly, playing together with minimal delay — keeping the timing intact and ensuring a realistic, natural listening experience.

A Unique Fusion of Sound and Design

At DIAGRAMMaudio®, we craft each open-baffle loudspeaker as both a musical instrument and a piece of art — a true haute couture creation. Every piece is individually handmade, with the final finish personally completed by designer Natasha Atmo, ensuring a level of detail and artistry that transcends mass production. Elements such as decorative lacing, wooden beads, and our signature eye-shaped accents give each speaker its unique character. The durable, high-quality eco-leather surface adds a tactile dimension that mirrors the vibrant, lifelike nature of the sound. Our loudspeakers are not just objects — they are alive, like music itself.

Our Vision

At DIAGRAMMaudio®, we strive to design loudspeakers that let you experience music in a new light — with incredible realism, transparency, and detail.

Both PARALLEi and ATMO embody our commitment to phase coherence, driver integration, and uncompromising quality, giving you a sound that feels alive, natural, and deeply engaging.

Each pair is meticulously handcrafted, with uncompromising quality control at every stage and an initial 10-hour break-in performed before delivery. Please note that the speakers reach their full sonic potential after approximately 100 hours of listening.

Due to their handcrafted nature, production typically takes around 2 months.

We value an individual approach and personal preferences (custom panel color combinations are available).

For orders or any questions, feel free to contact us directly:

diagrammaudio@gmail.com

Interested in experiencing our acoustic systems? Contact us to arrange a private listening session.