KEF Q Concerto Meta + A25+ Speakers Amplifier System

Experience True High-Fidelity Sound: KEF Q Concerto Meta + Arcam A25+ System

Step into a new dimension of sound with the perfect pairing of British acoustic innovation and precision amplification. The KEF Q Concerto Meta speakers, combined with the powerful Arcam A25+ integrated amplifier, deliver a listening experience that is as immersive as it is refined.

At the heart of the KEF Q Concerto Meta lies Metamaterial Absorption Technology (MAT™), a groundbreaking innovation that eliminates unwanted distortion and reveals every detail in your music. From delicate vocals to complex orchestral layers, every note is presented with stunning clarity and depth.

Driving these speakers is the Arcam A25+, a next-generation integrated amplifier engineered for purity and control. With its advanced Class G amplification, enhanced power delivery, and refined musicality, the A25+ brings out the full potential of the Q Concerto Meta—effortlessly handling everything from subtle acoustic tracks to high-energy performances.

Why this system stands out:

• Unmatched clarity: MAT™ technology absorbs 99% of unwanted sound for pristine audio reproduction
• Next-level performance: Arcam A25+ delivers improved dynamics, control, and detail
• Immersive soundstage: KEF’s Uni-Q driver array creates a wide, natural listening experience
• Modern connectivity: Stream, connect, and enjoy music your way with versatile input options
• Timeless design: Elegant aesthetics that complement any living space

Whether you’re rediscovering your favourite albums or exploring new music, the KEF Q Concerto Meta + Arcam A25+ system transforms every listening session into something extraordinary.

Hear music as it was meant to be heard.

Specifications

KEF Q Concerto Meta Bookshelf Speakers

Design

• 2-way bass reflex bookshelf speaker
• Rear-firing port

Drive Units

• 1 x 6.5" (165mm) Uni-Q driver array
  • 1" (25mm) vented aluminium dome tweeter with MAT™
  • 6.5" aluminium cone mid/bass driver

Frequency Response

• 48Hz – 20kHz (±3dB)

Frequency Range

• 42Hz – 20kHz (-6dB)

Sensitivity

• 87dB (2.83V/1m)

Nominal Impedance

• 4 Ohms (minimum ~3.2 Ohms)

Recommended Amplifier Power

• 15 – 150W

Crossover Frequency

• 2.1kHz

Cabinet

• MDF enclosure with internal bracing
• Available in multiple finishes

Dimensions (H x W x D)

• Approx. 415 x 210 x 315 mm

Weight

• Approx. 9.5 kg (each)

Arcam A25+  Integrated Amplifier

Amplifier Type

• Class G integrated amplifier

Power Output

• 100W per channel (8 Ohms)
• 165W per channel (4 Ohms)

Total Harmonic Distortion (THD)

• <0.002%

Signal-to-Noise Ratio

• 110dB

Inputs

• 3 x Analogue RCA
• 1 x MM Phono input
• 1 x Digital Coaxial
• 2 x Digital Optical
• USB input (for firmware/service)

Outputs

• Speaker outputs (binding posts)
• Pre-out
• Subwoofer out
• Headphone output (6.3mm)

DAC

• High-resolution ESS DAC
• Supports up to 24-bit / 192kHz

Connectivity

• Bluetooth (aptX Adaptive)

Power Consumption

• Approx. 500W max

Dimensions (W x H x D)

• Approx. 431 x 83 x 344 mm

Weight

• Approx. 9 kg

Finishes

• Premium aluminium casework