Russound IC-630
Overview
At the top of the IC-Series range, Russound reserves its most advanced materials for this ceiling speaker: titanium in the tweeter and on the woofer cone, a treble adjustment to suit the room’s acoustics, and tool-free mounting. Supplied as a pair, it is installed in rooms dedicated to listening, whether a living room or home theater room, leaving only a flush grille visible that can be painted to match the ceiling.
Titanium on both the cone and the tweeter
The mid-bass driver measures 16.51 cm. Its injection-molded polypropylene cone receives a thin layer of vapor-deposited titanium: the metal is vaporized, then condenses into a very thin film on the cone’s surface. The idea is to stiffen the cone without adding weight, so it retains its shape under heavy use. This driver is part of a one-piece assembly combining the baffle and basket (the component that supports the cone and motor), a construction Russound uses to increase rigidity and deliver more effective bass. The magnet weighs 312 g.
For the treble, a 25 mm titanium tweeter takes over. The stated frequency response extends from 45 Hz to 25 kHz: the treble reaches the upper end of the audible range, and the bass extends low for an in-ceiling speaker of this size. For music, the range is complete for living room listening; for explosions and deep sub-bass layers in a film, a subwoofer is still necessary.
Treble that suits the room
A switch on the speaker raises or lowers the treble by 3 dB, a clearly audible difference without upsetting the balance. In a reverberant room with tiled floors, large windows and bare walls, the -3 dB position tones down the brightness. In a living room filled with thick sofas, rugs and curtains that absorb high frequencies, the +3 dB position restores their presence. This adjustment is absent from the IC-610 and IC-620.
The tweeter pivots up to 15°. In the ceiling, a speaker’s location often depends on joists, spotlights or a ventilation duct, and rarely falls directly above the sofa: aiming the tweeter toward the listening area restores some of the lost precision, as treble is the most directional part of the spectrum.
Music, television and home theater front channels
Russound positions the IC-630 for main listening rooms and recommends it for the front left, right and center channels, for music as well as television and movies. In stereo, a ceiling-mounted pair on either side of the listening area delivers consistent sound throughout the room, without the narrow sweet spot imposed by ideally positioned stand-mounted speakers.
With a sensitivity of 90 dB (the sound level produced at 1 m with 1 W of amplification), the speaker has good efficiency and does not require a powerful amplifier. Its recommended amplification range is 5 to 110 W at an impedance of 8 ohms, an easy load suited to a home theater amplifier as well as a stereo amplifier. In a Russound multiroom installation, it connects to the MBX-AMP connected amplifier or the D250LS zone amplifier.
Tool-free installation with SwiftLock
The patented SwiftLock by Swarm mounting system uses three clamping tabs: pressing the button on each one is enough to secure the speaker against the ceiling. Russound recommends a cutout diameter of 21.27 cm; the speaker requires an installation depth of 9.37 cm and measures 23.8 cm in overall diameter, including the flange.
The round frameless grille attaches with neodymium magnets, powerful enough to hold it in place without visible clips, and can be painted to blend into the ceiling. An optional square NanoPerf grille is available to match square spotlights or air vents.
The cutout and depth dimensions are identical to those of the IC-620. Switching from one to the other therefore requires no alterations to the ceiling, and the two models share the same sensitivity: the IC-630 adds titanium to the mid-bass driver and tweeter (the IC-620 uses a silk dome), extends the response from 20 to 25 kHz in the treble and from 47 to 45 Hz in the bass, increases power handling from 100 to 110 W, and adds treble adjustment.
Documentation
Technical specifications
- Speakers
- Midrange/Woofer: 16.51 cm IM polypropylene cone
- Tweeter: 25 mm
- Pivoting tweeter (up to 15°)
Measurements
- Frequency response: 45 Hz - 25 kHz
- Impedance: 8 ohms
- Magnet structure: 0.312 kg
- Recommended power: 5 - 110 watts
- Sensitivity: 90 dB at 1w / 1m
General
Mounting
- Mounting depth: 9.37 cm
- Overall dimensions: 23.8 cm
- Cutout dimensions: 21.27 cm diameter
Packaging
- Dimensions: 29.8 x 27.3 x 30.5 cm
- Weight (pair): 3.6 kg
Frequently asked questions
Is the IC-630 sold individually or as a pair?
It comes as a pair, in a box measuring 29.8 x 27.3 x 30.5 cm and weighing 3.6 kg. For a single center channel, you therefore need to buy a pair and use the second speaker elsewhere, as a surround channel or in another room.
Should you add a subwoofer?
For background music or living room listening at a reasonable volume, it is not essential. For a home theater, a subwoofer is highly recommended: it handles the lowest frequencies, takes the strain off the 16.51 cm driver and allows it to maintain clean sound at high volumes. Set the amplifier’s crossover frequency to around 80 Hz.
How can I paint the grille without affecting the sound?
Remove the grille before painting it and apply thinned paint in thin sprayed coats, rather than with a roller or brush. The aim is to avoid blocking the perforations, which would attenuate the treble.
Can two pairs be connected to the same amplification zone?
Yes, in parallel: two 8-ohm speakers connected to the same output present a 4-ohm load. Check that the amplifier supports 4 ohms; this is the case with the Russound D250LS in stereo mode, which can power up to four speakers in parallel.
Can old in-wall speakers be replaced without enlarging the hole?
The 6.5-inch models in the IC series share the same 21.27 cm cutout. If the old speaker occupies a hole of this diameter and the available depth exceeds 9.37 cm, the IC-630 can be installed without any ceiling modifications.
Should a support be provided before installing the ceiling?
For new construction or major renovation, the Russound SB-C67 pre-construction bracket attaches between the joists before the drywall is installed. It marks the location, guides the cutout and provides rigid support for the speaker. In an existing ceiling, the SwiftLock mounting system clamps directly onto the drywall.
Is the speaker suitable for the surround channels of a home theater system?
Yes. Installed in the ceiling just behind the listening area, a pair of IC-630 speakers handles the rear channels with the same tonal character as the front channels, keeping the sound consistent as an effect moves from front to rear. The pivoting tweeter helps direct high frequencies toward the audience.
- Eco-contribution included in the sale price.
- GTIN / EAN: 818278961707
