Genelec 8040B 6.5″ Studio Monitor 180W RMS 105 dB SPL Two-Way Active Speaker
Experience the true sound of your mix with the astonishing performance and versatility of the 8040B.

Pristine performance
The choice of recording professionals the world over, the 8040B’s pristine performance extends to an SPL of 105 dB and reaches right down to 41 Hz. This is a nearfield monitor that can provide truthfulness and energy in equal measures.


Power and accuracy
The 8040B’s recycled aluminium cabinet design combines transparent, uncoloured audio quality with a unique aesthetic beauty. You’ll work with speed and accuracy, producing mixes that translate beautifully. And when you’ve finished, our Intelligent Signal Sensing (ISS) circuitry will automatically switch the 8040B into a green, power-saving standby mode.
Genelec 8040B Studio Monitor – High-Performance Two-Way Active Monitoring with Precision Sound Reproduction
The Genelec 8040B is a professional-grade two-way active studio monitor designed for accurate and transparent sound reproduction in mid-sized control rooms, recording studios, and broadcast facilities. As part of Genelec’s respected 8000 series, the 8040B is known for its balanced frequency response, robust SPL capacity, and durable build quality.
Equipped with a 6.5-inch woofer and a 3/4-inch metal dome tweeter, both powered by dedicated 90-watt RMS amplifiers, the 8040B delivers a substantial maximum SPL of 105 dB. Its wide frequency response of 48 Hz to 20 kHz ensures detailed and faithful monitoring for a variety of professional applications.
Key Features
Two-Way Active Monitor System:
Utilizes a 6.5-inch woofer and 3/4-inch tweeter, each driven by independent amplifiers for precise sound across the full frequency spectrum.90W Bi-Amplification (Total):
Ensures efficient power delivery with 90 watts RMS per driver, providing consistent output with low distortion.105 dB SPL Output:
High sound pressure level capability allows for dynamic and high-energy audio playback without compromise.Minimum Diffraction Enclosure (MDE™):
Curved aluminum housing minimizes diffraction and cabinet resonances, maintaining clarity and definition in audio playback.Directivity Control Waveguide (DCW™):
Controls dispersion to create a stable and consistent sound image across a wide listening area.Room Response Compensation Controls:
Adjustable rear DIP switches for bass tilt, bass roll-off, and treble tilt, enabling optimal tuning based on room acoustics and placement.Magnetically Shielded Drivers:
Designed to operate safely near computer monitors and other sensitive electronic equipment.
Technical Specifications
Woofer Size: 6.5 inches (165 mm)
Tweeter Size: 3/4 inch (19 mm) metal dome
Frequency Response: 48 Hz – 20 kHz (±2 dB)
Maximum SPL: 105 dB (peak output at 1 meter)
Amplifier Power:
Woofer: 90 W
Tweeter: 90 W
Crossover Frequency: 3 kHz
Inputs: 1 x XLR analog input
Enclosure Material: Die-cast aluminum (MDE™ design)
Dimensions (H × W × D): 350 × 237 × 223 mm
Weight: 8.6 kg per unit
Power Consumption: Less than 0.5 W in standby
Performance Overview
The Genelec 8040B delivers a full-range, uncolored sound signature suitable for critical audio production. Thanks to its 6.5-inch woofer and robust 90-watt amplification per driver, it offers precise low-frequency extension down to 48 Hz without over-exaggeration or artificial boosts.
Its Directivity Control Waveguide (DCW™) ensures a consistent and focused sound field, making stereo imaging accurate and reliable whether mixing, mastering, or editing. Combined with Minimum Diffraction Enclosure (MDE™) construction, the 8040B preserves sonic detail and balance even in untreated or less-than-ideal acoustic spaces.
With 105 dB peak SPL, it comfortably handles high dynamic range material, whether for music production, sound design, or broadcast work.
The monitor’s rear adjustment controls provide tailored room compensation options, allowing engineers to fine-tune bass and treble response based on monitor placement or room characteristics.
Use Cases and Applications
Professional Recording Studios:
Suitable for tracking, mixing, and mastering across all genres, from electronic music to orchestral productions.Broadcast Control Rooms:
Delivers clear and reliable sound reproduction for broadcast monitoring tasks.Post-Production and Film Editing:
Ideal for audio-for-video workflows, where dialogue clarity and effect placement are critical.Mid-Sized Project Studios:
Provides a step up in SPL and frequency response from smaller nearfield monitors, ideal for mid-sized control rooms.Multichannel Audio Systems:
Can be incorporated into larger surround sound setups, including 5.1 and 7.1 configurations.
Why Choose Genelec 8040B
Balanced Power and Size:
Combines compact form factor with powerful output and wide frequency response, ideal for mid-sized environments.Durable Build Quality:
Aluminum MDE™ enclosures ensure longevity, mechanical stability, and consistent acoustic performance.Energy-Efficient Operation:
Equipped with Intelligent Signal Sensing (ISS™) technology to reduce power consumption automatically when no signal is present.Flexible Room Integration:
Rear DIP switch controls offer detailed tuning without requiring external processors, allowing the monitor to adapt to various room setups and acoustic challenges.
Final Thoughts
The Genelec 8040B Studio Monitor is an ideal choice for professionals seeking a robust, precise, and reliable monitoring solution with enough power and clarity for serious audio production tasks. Its 105 dB SPL capability, 90-watt bi-amplification, and transparent sound reproduction make it equally suitable for music production, broadcast, film post-production, and mastering.
Built with Genelec’s renowned MDE™ and DCW™ technologies, the 8040B delivers a listening experience defined by clarity, balance, and durability. Whether integrating into a new studio build or upgrading existing monitoring systems, the 8040B offers performance that stands up to the demands of modern audio production.




















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