ArtSound HPRO525 (pack of 2)

A frame barely one millimeter thick, a magnetic grille with a satin finish, and a patented mounting system: the HPRO525 is part of the Happi series, whose Finnish-inspired name evokes oxygen and lightness. This round 5.25-inch coaxial two-way in-ceiling speaker focuses on visual discretion while delivering refined sound reproduction, capable of covering areas of up to 50 m².

A design meant to fade into the décor

The ultra-thin outer ring of the HPRO525 — just one millimeter — allows it to blend into any ceiling or partition. The aluminum grille has a smooth, uniform surface, with no visible screws or clips thanks to the magnetic mounting system. For even more seamless integration, this grille can be painted to perfectly match the color of the mounting surface. A black grille is also available as an option for installations against dark backgrounds.

The entire structure is based on an ABS chassis and an aluminum grille that combine lightness (1.1 kg per speaker) and durability. The 180 mm cutout diameter and 80 mm mounting depth make installation easy in most suspended-ceiling configurations.

Two-way acoustic configuration

The HPRO525 uses a coaxial architecture in which the 0.75-inch aluminum dome tweeter is positioned at the center of the 5.25-inch woofer. The latter features an aluminum cone with a rubber surround, a choice of materials that promotes both the rigidity needed for precision and the flexibility required for air displacement in the low-frequency range.

The tweeter, equipped with a neodymium magnet, can swivel to direct the high frequencies toward the listening area. This adjustment capability is particularly useful when the speaker is not installed directly above the main listening position. An integrated passive crossover distributes frequencies between the two drivers over a range from 60 Hz to 20 kHz.

Treatment suited to humid environments

ArtSound positions the Happi series as splash-resistant rather than fully waterproof. The woofer’s aluminum cone and the metal grille can withstand the ambient humidity of a bathroom, kitchen, or covered terrace. This design also avoids the nasal sound sometimes associated with in-ceiling speakers designed for damp environments, where treated diaphragms can compromise reproduction quality.

For outdoor installations directly exposed to the elements, ArtSound nonetheless recommends its specifically waterproof range.

Simplified installation with a patented system

Installing the HPRO525 relies on a patented wing-clamp mechanism that allows you to secure the speaker from the front, without access to the back of the mounting surface. Once the cutout hole has been made using the supplied template, the speaker is positioned and locked in place with a few turns. The magnetic grille then snaps into place without any tools.

To optimize acoustic performance, the KITRO4 kit (sold separately) allows you to create a sealed volume behind the speaker. This moisture-resistant MDF back box absorbs rear waves and eliminates unwanted resonances that can occur when the speaker opens into a plenum or untreated loft space.

Power and compatibility

With an impedance of 8 ohms and a sensitivity of 88 dB, the HPRO525 accepts amplifier power from 10 to 100 watts. It connects to any hi-fi or multiroom amplifier with standard speaker outputs. ArtSound notably offers the Smart Hyde pack, which pairs this speaker with a compact amplifier compatible with major streaming services.

Technical specifications

Acoustic characteristics

• 2-way coaxial system
• Frequency range: 60 Hz - 20 kHz
• Sensitivity: 88 dB

Speakers

• 5.25” (13.3 cm) woofer
  • Aluminum cone
  • Rubber surround
• 0.75” (1.9 cm) tweeter
  • Aluminum dome with neodymium magnet

Electrical characteristics

• Recommended amplifier power: 10 - 100 W
• Impedance: 8 Ω

Dimensions and weight

• Cutout diameter: 180 mm
• Dimensions (diameter x depth): 200 x 80 mm
• Unit weight: 1.10 kg

Materials and finish

• Composition: ABS / aluminum grille
• Color: white
• Paintable grille

Special features

• Splash-resistant

Available accessories

• Acoustic kit (KITRO4)
• Black grille (GRILLHPRO525B)

General information

• Recommended coverage area: less than 50 m²