PMC ci90slim In-Wall Loudspeaker (Each)
$3,300.00
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The PMC ci90 is a masterclass in acoustic optimization, specifically engineered for environments where vertical elegance and slim architectural integration are paramount. As a key member of PMC’s ci (Custom Install) series, the ci90 is designed to provide the same high-resolution, transparent audio found in the world’s leading recording studios but in a format that fits seamlessly into a modern home or professional media suite. In 2026, it remains the premier choice for narrow-cavity installations, particularly for LCR (Left, Center, Right) channels positioned between wall studs or flanking large-format projection screens.
The Science of ATL™ and Laminair™
Despite its slender 190mm (7.5-inch) width, the ci90 delivers a frequency response and low-end authority that defies its physical profile. This is made possible through the Advanced Transmission Line (ATL™), a proprietary PMC technology that uses a 1.5-meter internal labyrinth to reinforce bass frequencies. While traditional narrow speakers often sound “boxy” or “thin,” the ci90 provides a flat, rich low-frequency extension down to 45Hz.
To ensure that the bass remains articulate and free from distortion at high volumes, the ci90 incorporates Laminair™ aerodynamic venting. By reducing air turbulence at the exit of the transmission line, Laminair™ provides a faster, higher-definition bass response and significantly improves the speaker’s overall dynamic range. Whether it is the subtle nuances of a cello or the explosive impact of a modern soundtrack, the ci90 reproduces sound with unerring accuracy.
Driver Precision and Wide Dispersion
The ci90 utilizes a specialized 2-way driver array to ensure a coherent and immersive soundstage:
- The Woofer: A 5.25-inch (133mm) Natural Fibre LT™ long-throw driver is optimized for high power handling and massive excursion, allowing it to move air with the efficiency of a much larger speaker.
- The Tweeter: A 1-inch (27mm) soft-dome tweeter is paired with a custom-milled waveguide. This design is critical for custom installations, as it provides an exceptionally wide dispersion pattern. This ensures a massive “sweet spot,” allowing every listener in a 2026 home cinema to hear a perfectly balanced audio image.
Architectural Versatility and Installation
The ci90’s 900mm height and 103mm depth make it an incredibly versatile tool for architects and interior designers. It is equipped with the patented Qikfire™ mounting system, a spring-loaded mechanism that enables rapid, secure installation into existing walls with a simple turn of a screwdriver.
The speaker arrives in a professional “Studio Black” finish, accompanied by a white, bezel-less micro-perforated grille. This magnetic grille is fully paintable, allowing the speaker to blend into any wall color or texture. For installations where cutting into the wall is not an option, the ci90 can be used as a sleek on-wall monitor when paired with the optional On-Wall Kit (OWK).
Whether serving as the heart of a high-end stereo system or as a critical component in a 9.1.6 immersive audio layout, the PMC ci90 provides uncompromising studio-grade performance in a form factor that respects the boundaries of your architecture.
Features & Specifications
| Attribute | Detail |
|---|---|
| Type | 2-way passive in-wall or on-wall monitor |
| Frequency Response | 45Hz – 25kHz |
| Sensitivity | 87dB SPL (2.83V @ 1m) |
| Peak SPL | 109dB SPL |
| Nominal Impedance | 8 Ohm |
| Recommended Amp Power | 40 – 150 W |
| Effective ATL™ Length | 1.65m (5.4ft) |
| Input Connectors | 1 pair 4mm sockets (binding posts) |
Drive Units
- Low Frequency (LF): 133mm (5.25”) Natural Fibre LT™ long-throw driver
- High Frequency (HF): 27mm (1”) Soft Dome tweeter with custom waveguide
Physical Attributes & Installation
| Attribute | Detail |
|---|---|
| Dimensions (H x W x D) | 900mm (35.4″) H x 190mm (7.4″) W x 103mm (4″) D |
| Weight | 8.6kg (19lbs) unboxed with grille |
| Standard Finish | ci series black cabinet with white or black paintable magnetic grille |
| Mounting Systems | Qikfire™ spring-loaded in-wall system; interlocking on-wall bracket |
| Optional Accessories | OWK (On-Wall Kit in black or white), PMK (Pre-Mount Kit), BRKT (Wall bracket) |
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