Zero DB ICD-61

Zero DB ICD-61 – 6.5-Inch Ceiling Speaker for Homes and Commercial Spaces

The Zero DB ICD-61 is a 6.5-inch in-ceiling speaker from Zero DB, a German-designed speaker brand, built for installations where the sound should be heard and the hardware should not. The listing describes it as an angled ceiling speaker, and the manufacturer’s published specification confirms the format: a round 229 mm panel that fits a 210 mm ceiling cut-out, pairing a 6.5-inch low-frequency woofer with a 1-inch high-frequency driver behind a metal grille.

Ceiling speakers live or die on coverage and clarity at real listening positions, and the ICD-61’s numbers are aimed squarely at that job. Sensitivity is a healthy 93 dB at 1 watt and 1 metre, dispersion is a wide 140 degrees, and maximum output reaches 108 dB — enough for confident background music, clear announcements and immersive home theatre effects from above.

Key features

• 6.5-inch ceiling speaker with 30 mm voice coil woofer
• 1-inch high-frequency driver with 25 mm voice coil
• Frequency response from 75 Hz to 25 kHz (plus/minus 3 dB)
• High 93 dB sensitivity for strong output from modest amplifiers
• Maximum SPL of 108 dB for larger rooms and commercial spaces
• Wide 140-degree dispersion for even coverage across the room
• Recommended amplifier power of 25 to 180 W at 4 ohms
• ABS enclosure with metal grille for a clean, flush ceiling finish
• Nickel-plated crimping terminals for secure speaker cable connection
• Screw-type flying hook fittings for straightforward installation

Sound coverage and output

A 140-degree dispersion pattern is the practical headline here. Sound spreads broadly rather than beaming down in a narrow cone, so listeners hear consistent music and dialogue as they move around the room, and fewer speakers are needed to cover a given area evenly. The 75 Hz to 25 kHz response range gives music real low-end presence for a ceiling format, while the extended top end keeps speech crisp — important for the announcements, presentations and film dialogue that ceiling systems carry every day.

Power and system matching

With a nominal impedance of 4 ohms and a recommended amplifier range of 25 to 180 W, the ICD-61 pairs with a wide spread of multi-room and commercial amplifiers. The 93 dB sensitivity means it reaches useful volume without demanding large amounts of power, which keeps amplifier choice flexible for both home zones and larger distributed systems. Nickel-plated crimping terminals give a secure, corrosion-resistant connection that installers can trust above a closed ceiling.

Installation and finish

The panel measures 229 mm across and the unit needs a 210 mm cut-out with just over 133 mm of depth above the ceiling. The ABS enclosure and metal grille keep the visible profile clean and modern, the speaker weighs 2.3 kg, and screw-type flying hook fittings simplify mounting. Once fitted, only the grille shows, which is exactly what architects and homeowners ask of a ceiling system.

For living rooms, home theatres, restaurants, showrooms and offices, the ICD-61 offers wide, even coverage, strong sensitivity and a discreet finish. It is a sensible specification for anyone building ceiling audio that has to sound good everywhere in the room, not just directly underneath.