Q Acoustics M40 Active Speakers
Full-featured active micro-tower floorstanders with 200 watts Class D power, versatile inputs & deep bass in a stylish cabinet.
Product Overview
The Q Acoustics M40 delivers an impressive all-in-one stereo experience—Class D amplification, wireless connectivity, multiple digital & analogue inputs, and a design built for both fidelity and aesthetics. Whether you stream over Bluetooth or use USB/optical, the M40 covers your needs. With twin 5-inch C3 mid/bass drivers, a 0.9-inch tweeter, and a frequency range down to ~38 Hz (-6 dB), they deliver fuller sound than many compact speakers, without a separate amplifier or receiver. Expandable via the subwoofer output and solidly built with acoustic bracing, they’re ideal for living rooms where simplicity and performance matter.
Key Features
- 2 × 50 W RMS built-in Class D amplification (100 W peak) per speaker. :contentReference[oaicite:14]{index=14}
- Multiple input options: RCA, 3.5 mm, USB-B (24-bit/192 kHz), Optical (24/192), and Bluetooth 5.0 with aptX / HD / LL. :contentReference[oaicite:15]{index=15}
- C3 Continuous Curved Coneâ„¢ mid/bass driver design and decoupled tweeter for smoother mid-high integration. :contentReference[oaicite:16]{index=16}
- Helmholtz Pressure Equaliserâ„¢ and rigid internal bracing (Point-to-Point) to reduce cabinet resonances. :contentReference[oaicite:17]{index=17}
- Subwoofer output included to complement the low-end if desired. :contentReference[oaicite:18]{index=18}
- Compact floorstanding form factor (≈ 71 cm tall), sleek finishes (Black, White, Walnut). :contentReference[oaicite:19]{index=19}
- Low standby consumption (< 0.5 W) and modest typical power usage (~10 W) in use. :contentReference[oaicite:20]{index=20}
Technical Specifications
| Amplifier Power | 2 × 50 W RMS (4 Ω), Peak 2 × 100 W |
|---|---|
| THD @ Rated Power | < 0.7 % |
| Drivers | 2 × 125 mm mid/bass • 1 × 22 mm tweeter |
| Crossover Frequency | ≈ 2.5 kHz |
| Frequency Response (-6 dB) | 38 Hz – 22 kHz |
| Enclosure Type | 2-way reflex / ported |
| Inputs | • 2 × RCA analogue • 3.5 mm aux • Optical S/PDIF (TOSLINK) 24-bit/192 kHz • USB-B (24-bit/192 kHz) • Bluetooth 5.0 (aptX, aptX HD, Low Latency, SBC, AAC) |
| Subwoofer Output | 1 V RMS (phono) |
| Power / Voltage | 100-240 VAC, 50-60 Hz |
| Power Consumption (Standby) | < 0.5 W |
| Typical Power Use | ~ 10 W |
| Dimensions (W × H × D) | 250 × 710 × 296 mm (with stabilisers/spikes) |
| Weight | Active speaker ≈ 12.4 kg • Passive speaker ≈ 11.8 kg |
| Finishes | Black, White, Walnut |
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