PMC ci45 In-Wall or In-Ceiling Loudspeaker (Each)
$3,300.00
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The PMC ci45 is a high-performance architectural loudspeaker designed to bridge the gap between discreet custom installation and world-class studio monitoring. As of 2026, it remains a cornerstone of PMC’s ci (Custom Install) series, specifically engineered for those who refuse to sacrifice acoustic integrity for interior aesthetics. With a larger cabinet volume than the entry-level ci30, the ci45 provides a more authoritative scale and deeper low-frequency extension, making it the preferred choice for front LCR (Left, Center, Right) channels in high-end home cinemas or as critical surround and height channels in professional Dolby Atmos® mixing suites.
The Science of Sound: ATL™ and Laminair™
What separates the ci45 from standard architectural speakers is the inclusion of PMC’s foundational Advanced Transmission Line (ATL™) technology. While most in-wall speakers rely on a simple sealed box that can sound “thin,” the ci45 features a 1.65-meter internal labyrinth. This ATL™ guides air through the cabinet to reinforce the lowest frequencies, allowing this shallow-depth speaker to achieve a remarkably flat and honest bass response down to 45Hz.
To ensure this bass remains articulate and free from mechanical noise, PMC has integrated its Laminair™ aerodynamic venting. Based on principles used in high-performance motorsport, these vents smooth the airflow at the exit of the transmission line. By reducing turbulence, Laminair™ ensures that the low end is not only deep but also incredibly fast and defined, providing the rhythmic precision and “punch” that film scores and modern music demand.
Precision Driver Technology
The ci45 utilizes a 2-way driver array meticulously voiced for transparency:
- The Woofer: A 5.25-inch (133mm) natural fiber long-throw driver provides massive excursion capabilities. This allows the speaker to handle high-SPL transients without the distortion typical of smaller custom-install drivers.
- The Tweeter: A 1-inch (27mm) soft-dome tweeter is paired with a custom-milled waveguide. This waveguide is critical for installation speakers; it widens the off-axis dispersion, ensuring that every seat in the home theater experiences a coherent and tonally balanced soundstage.
Seamless Integration and 2026 Standards
Installation is made effortless via the Qikfire™ spring-loaded mounting system, which allows the speaker to be secured into a wall cavity in seconds with a simple turn of a screwdriver. The shallow 103mm (4-inch) depth ensures it fits into standard modern wall constructions without requiring structural modifications.
Visually, the ci45 is designed to disappear. It comes with a white, bezel-less, magnetic micro-perforated grille that can be painted to match any wall or ceiling color. For those who prefer a visible, high-tech aesthetic, the speaker can be used on-wall with the optional On-Wall Kit (OWK), which transforms the unit into a sleek, modernist monitor. Whether you are building a 2026-spec immersive media room or a professional post-production facility, the PMC ci45 delivers the scale and soul of a flagship monitor in a format that respects your space.
Features & Specifications
| Attribute | Detail |
|---|---|
| Type | 2-way passive in-wall, on-wall, or in-ceiling monitor |
| Frequency Response | 45Hz – 25kHz (-3dB) |
| Sensitivity | 84dB SPL (2.83V @ 1m) |
| 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) | 450mm (17.7″) H x 300mm (11.8″) W x 103mm (4″) D |
| Weight | 6.5kg (14.3lbs) unboxed with grille; 8.5kg boxed |
| Standard Finish | ci series black cabinet with white paintable magnetic black or white grille |
| Mounting Systems | Qikfire™ spring-loaded in-wall system; supplied interlocking on-wall bracket |
| Optional Accessories | OWK (On-Wall Kit in black or white),
PMK
(Pre-Mount Kit) |
Key Performance Features
- Immersive Audio Ready: Exceeds Dolby’s stringent requirements for Atmos® formats, suitable for LCR, surround, or height channels.
- Laminair™ Technology: Aerodynamic vents reduce air turbulence at the ATL exit to ensure faster, high-definition bass.
- Advanced Transmission Line (ATL™): Provides deep, rich bass even at low listening levels without the “boxy” coloration of standard designs.
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