Denon AVR-S670H + Gallo Acoustics Micro with Profile Sub 5.1 Home Theatre Package

Denon AVR-S670H Gallo Micro Profile Sub 5.1 Home Theatre Package

The Denon AVR-S670H Gallo Micro Profile Sub 5.1 Home Theatre Package is a complete surround sound system built around two design icons: five Gallo Acoustics Micro spherical speakers and the ultra-thin ProfileSub, all driven by the Denon AVR-S670H 5.2-channel 8K AV receiver. The Micro spheres disappear into a room in a way no box speaker can, the ProfileSub hides flat against a wall or under furniture, and the Denon receiver switches six HDMI sources, calibrates the room with Audyssey and streams music over HEOS, Bluetooth and AirPlay 2. It is a full home cinema that looks like almost nothing at all.

Why Choose the Denon AVR-S670H Gallo Micro Profile Sub 5.1 Home Theatre Package?

Most home theatre systems force a choice between sound and looks: big boxes that sound right, or small speakers that do not. Gallo’s Micro avoids that trade entirely. Each Micro is a 4-inch steel sphere with a 3-inch full-range driver and no internal crossover, so there is no cabinet edge diffraction and no crossover phase shift colouring the sound. Five of them, all identical, give a perfectly matched soundfield where effects move around the room without changing character. The ProfileSub adds real bass from an 8-inch driver in a slab only 180 mm deep, and the Denon AVR-S670H ties it together with 75 watts per channel, Audyssey MultEQ room calibration and full 8K HDMI switching. The result is a system that suits design-led living rooms as well as it suits film soundtracks.

Key Features

• Five identical Gallo Micro spheres: 3-inch full-range drivers in rigid 4-inch steel spheres, 100 W power handling, 8 ohms, 89 dB sensitivity, 100 Hz – 18 kHz on wall or stand — one voice in every channel, so pans stay seamless.
• ProfileSub on-wall subwoofer: 8-inch polypropylene driver with a 150 W Class-D amplifier, 32 – 220 Hz response, continuously variable low-pass (50 – 180 Hz) and phase (0 – 180 degrees), in a 475 x 305 x 180 mm slab that mounts flat on a wall or slides under furniture.
• Denon AVR-S670H 8K receiver: 5.2 channels at 75 watts per channel into 8 ohms, six HDMI inputs (three full 8K) with 8K/60 and 4K/120 pass-through, eARC, HDCP 2.3, VRR and ALLM for gaming.
• Audyssey MultEQ calibration: Measures the room and corrects levels, distances and frequency response automatically, with Dynamic EQ and Dynamic Volume for late-night listening.
• HEOS multi-room streaming: Wi-Fi, Bluetooth (including headphone transmission), AirPlay 2, Spotify Connect, TIDAL, Deezer, Amazon Music and TuneIn built in, plus a phono input for a turntable.
• Near-invisible installation: Micro spheres on wall, ceiling, tabletop or floor stands with the supplied Isolation2 mount, and a subwoofer that hides where box subs cannot go.

Package Includes

• 1 x Denon AVR-S670H 5.2-channel 8K AV receiver
• 5 x Gallo Acoustics Micro satellite speakers (front left/right, centre, surround left/right)
• 1 x Gallo Acoustics ProfileSub active subwoofer with black and cement-grey grilles

Best Suited For

The Denon AVR-S670H Gallo Micro Profile Sub 5.1 Home Theatre Package suits living rooms where appearance matters as much as sound: apartments, design-led homes and rooms where large speakers are not welcome. The spheres suit wall, ceiling and shelf placement, the ProfileSub suits rooms with no floor space for a box subwoofer, and the Denon receiver suits households that also want streaming, gaming and a turntable on the same system. It fits buyers upgrading from a soundbar to true discrete surround sound without filling the room with boxes.

Setup and Connection Guide

Place two Micros as front left and right flanking the screen, one as the centre below or above the television, and two as surrounds to the sides of or slightly behind the seating, using the supplied Isolation2 mounts or optional wall, ceiling and floor stands. Mount the ProfileSub flat on the wall behind or beside the seating, or slide it under a sofa or cabinet, and connect it to either Denon subwoofer pre-out with an RCA cable. Connect all five Micros to the matching Denon speaker terminals, connect sources to the HDMI inputs with the HDMI output to the television’s eARC port, then run Audyssey MultEQ with the supplied microphone and set the ProfileSub low-pass between 100 and 180 Hz to blend with the spheres.

Frequently Asked Questions

Do the Micro speakers need a subwoofer?

Yes, for full-range film sound. The Micros reach down to 100 Hz on a wall or stand, and the ProfileSub covers everything below that, which is why the package pairs them together with the Denon’s bass management.

Can the ProfileSub really go on a wall?

Yes. At 180 mm deep it mounts flat on a wall horizontally or vertically, or lies flat under furniture, and it ships with black and cement-grey grilles to match the room.

Does the Denon receiver support 8K and gaming?

Yes. Three HDMI inputs are full 8K, with 8K/60 and 4K/120 pass-through, VRR, ALLM and QFT for consoles, plus eARC for television audio.

Technical Specifications

Explore Related Products

The same Gallo Micro speaker set with Profile Sub is also available without the receiver as the Gallo Micro 5.1 with Profile Sub (White). Full specifications for the subwoofer are on the official Gallo Acoustics ProfileSub page.