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The Monitor Audio C3M is a high-performance, medium-sized Tier 3 in-ceiling loudspeaker engineered for installations where pristine acoustics are paramount. Featuring an advanced three-way design with RDT III bass driver, IDC II midrange driver, and IDC II tweeter with UD Waveguide II, it delivers a level of acoustic transparency and detail typically reserved for Monitor Audio’s premium loudspeaker range.
The C3M integrates Monitor Audio’s latest acoustic technologies to deliver uncompromising sound. Its RDT III cone ensures powerful, controlled bass with minimal distortion, while the IDC II midrange and tweeter, mounted in a precision mid-pod array, provide lifelike mid and high-frequency definition with wide dispersion. The Quik-Link speaker connector and Tri-Grip II system make installation fast, secure, and reliable, while optional square or premium grilles provide versatile aesthetic integration into any interior.
| Specification | Details |
|---|---|
| System Format | 3–Way |
| Channels | 1 |
| Frequency Response (-6dB) | 45 Hz – 35 kHz |
| Nominal Impedance | 6 ohm |
| Minimum Impedance | 4.8 ohm @ 2 kHz |
| Sensitivity | 87 dB (2.83 Vrms @ 1m) |
| Maximum Peak SPL | 116 dB |
| Continuous Power Handling | 120 W RMS |
| Recommended Amplifier Power | 45 – 180 W RMS (into 8 ohm) |
| Drive Units | 1 x 7" RDT III bass driver 1 x 4" IDC II midrange driver 1 x 1" IDC II tweeter |
| Crossover Frequency | LF/MF: 800 Hz MF/HF: 3.5 kHz |
| Mounting Depth | 148 mm (5 13/16") |
| Cut-Out Hole Diameter | 212 mm (8 3/8") |
| External Dimensions | 242 x 242 x 151 mm (9 1/2" x 9 1/2" x 5 15/16") |
| Weight | 3.4 kg (7 lb 8 oz) |
| Pre-Construction Bracket | CM-B |
| Cabinet Finish | Matte black, orange & green |
| Sold As | Single unit with CM-Round Grille (white) |
| Switches | Corner: On/Off HF: - / 0 / + MF: - / 0 / + |
| Warranty | Lifetime |
The C3M provides a premium in-ceiling audio experience, with its three-way driver array delivering exceptional clarity across the frequency spectrum. The RDT III driver offers tight, controlled bass, while the IDC II mid-pod array delivers detailed, natural midrange and treble. Its adjustable HF and MF controls, combined with a corner switch, allow fine tuning to suit any installation environment. With optional grille choices and installer-friendly features, the C3M combines flexibility with uncompromising performance.
Q: How does the C3M differ from Tier 2 ceiling speakers?
A: The C3M introduces a three-way design with premium RDT III and IDC II driver technologies, offering higher clarity, deeper bass, and wider dispersion than Tier 2 models.
Q: Can the grille be customised?
A: Yes, the C3M is supplied with a magnetic round grille but is also compatible with optional square and premium grille designs.
Q: Is it suitable for both music and home cinema?
A: Absolutely. Its three-way design ensures full-range clarity, making it ideal for both high-fidelity music reproduction and immersive home cinema applications.
Q: What tuning controls are included?
A: The C3M provides a corner switch, HF switch (-/0/+), and MF switch (-/0/+) for acoustic optimisation in different environments.
Q: What warranty is provided?
A: The C3M comes with Monitor Audio’s lifetime warranty for long-term peace of mind.
