Q Acoustics Qi65CP ST

The Q Acoustics Qi65CP ST represents an innovative approach to in-wall sound systems by offering full stereo playback from a single speaker. This technical solution, part of Q Acoustics’ Performance series, is designed for spaces where installing two traditional speakers is complex or aesthetically problematic.

With its two tweeters dedicated to the left and right channels and its dual voice coil system, this 2-way speaker provides a credible alternative to conventional stereo setups, making it particularly suitable for small rooms and constrained environments.

Technical Innovation: Reinventing Stereo

At the heart of the Qi65CP ST is a sophisticated audio architecture combining a 165 mm mid-bass driver with two 25 mm tweeters. This configuration allows separate processing of the left and right stereo channels within a single enclosure, thanks to a dual voice coil system and a tailored crossover network.

The two adjustable tweeters offer valuable flexibility, allowing you to optimize directivity according to the room’s layout. This adjustability is complemented by a three-position output selector (-3 dB, 0 dB, +3 dB) located on the rear panel, enabling fine-tuning of tonal balance to suit the acoustic environment.

The frequency response ranges from 70 Hz (-3 dB) to 20 kHz, covering the essential audible spectrum with a sensitivity of 90 dB. This performance makes the speaker a viable solution for both music and home theater applications, although adding a subwoofer is still recommended to fully exploit the low-frequency range.

Versatile Use and Environmental Resistance

The Qi65CP ST stands out for its versatility, covering a wide range of uses from residential hi-fi to commercial installations. Its moisture-resistant design opens up installation possibilities in bathrooms, kitchens, or covered outdoor spaces.

This environmental resistance is complemented by UL94 fire-retardant certification, attesting to compliance with fire safety standards. These certifications position the product for demanding professional installations: offices, restaurants, retail spaces, where safety standards are strict.

The speaker is especially relevant in confined spaces where installing two separate speakers would present logistical or aesthetic challenges: hallways, restrooms, kitchens, or conservatories. In these scenarios, the stereo output from a single unit far surpasses a traditional mono installation.

Compatibility and System Integration

With its nominal impedance of 8 ohms and power handling of 80 watts RMS, the Qi65CP ST is compatible with most home and professional amplifiers. This standard electrical load makes it easy to integrate into multiroom systems or home automation setups.

For optimal hi-fi use, pairing with an active subwoofer will extend the response into the deep bass, compensating for the natural limitations of a 165 mm driver. This hybrid setup combines the discretion of in-wall speakers with the performance of a complete system.

In a home theater environment, several Qi65CP ST units can form a coherent multichannel system, with each speaker locally handling its stereo output. This approach simplifies wiring while maintaining good channel separation in larger rooms.

Technical Specifications

Electrical Specifications

• Power handling: 80 watts RMS
• Impedance: 8 ohms
• Frequency response: 70 Hz (-3 dB) to 20 kHz
• Sensitivity: 90 dB
• Gold-plated terminals

Speakers

• 1 x 165 mm woofer/midrange driver
• 2 x 25 mm tweeters

Dimensions and Installation

• Mounting depth: 84 mm
• Diameter with circular grille: 232 mm
• Cutout diameter: 203 mm
• Weight: 2 kg per unit

General Information

• 2-way in-wall speaker
• Fire-resistant: UL94 rated