Description

Stonewater Atom 4 Satellite Speaker — 4″ Full Range, Home Theatre & BGM

Stonewater Atom 4 — Compact Satellite Speaker for Home Theatre & BGM

The Stonewater Atom 4 redefines what a compact speaker can deliver. Combining audiophile-grade performance with a discreet form factor, it is the ideal satellite speaker for home theatre surround systems, background music (BGM) installations, restaurants, retail stores, hotels, and any space where high-quality audio is needed without visual intrusion.

Italian-engineered drivers, built for precision

The Atom 4’s 4″ full-range transducer is custom-designed and manufactured in Italy at one of the world’s most advanced speaker production facilities. The result is an ultra-linear frequency and phase response from 150 Hz to 20 kHz — clean, detailed audio with no colouration across the entire range.

Wide dispersion for even coverage

With a nominal dispersion of 150° × 150°, the Atom 4 ensures even sound coverage across large areas — whether wall-mounted in a home cinema, ceiling-positioned in a restaurant, or used as surround speakers in a 5.1 or 7.1 home theatre system. The music dispersion of 100° × 100° maintains tight stereo imaging when precision matters.

Powerful output, compact size

Don’t let the size fool you. The Atom 4 delivers up to 113 dB peak SPL and handles 50W AES continuous program power — more than enough for immersive home theatre audio or filling a commercial space with clear, undistorted sound. At 91 dB sensitivity, it performs efficiently with standard AV receivers and stereo amplifiers.

Key features at a glance

• 4″ full-range driver — custom manufactured in Italy
• Ultra-wide 150° × 150° dispersion for even room coverage
• 91 dB sensitivity — works efficiently with most amplifiers
• 50W AES continuous / 113 dB peak SPL
• Frequency response: 150 Hz – 20 kHz
• Compact aluminium enclosure — durable, wall-mountable, discreet
• 8Ω impedance — compatible with standard home theatre and pro audio systems
• Dimensions: 130W × 130H × 122D mm | Weight: 1.42 kg

Recommended use cases

• Home theatre surround (pair with a subwoofer for full-range sound)
• Background music (BGM) for restaurants, cafés, retail and hotels
• Conference rooms and corporate audio
• Hospitality and architectural audio installations

Recommended system pairing

For a complete home theatre setup, pair the Atom 4 with a subwoofer to handle low frequencies (the Atom 4’s response starts at 150 Hz), and drive the system with an AV receiver or stereo amplifier. For commercial BGM, connect to a 100V line amplifier or a dedicated zone amplifier.

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