Description
Arcam A25+ with KEF Q Concerto Meta
A flagship-inspired pairing delivering exceptional authority, realism, and musical engagement for the serious music lover.
For speaker colour options, let us know in your order notes wether you would like Black, White or Walnut!
Born in Britain
For a limited time, discover curated system pairings from two of Britain’s most iconic hi-fi brands, Arcam and KEF. Expertly matched for synergy, each bundle delivers outstanding performance, timeless design, and exceptional value.
Meet the Arcam A25+ Integrated Amplifier

The A25+ is the latest in nearly 50 years of amplifier design and manufacture, dating back to their first product in 1976 —the A&R Cambridge A60 amplifier. Since the launch of the award-winning ARCAM Radia A25+, the engineering team pushed further to create the premium ARCAM A25+, an even better sounding and more versatile integrated amplifier.
With a wide array of analogue inputs, including a meticulously tuned phono stage, and digital inputs including HDMI eARC and USB-C, the A25+ provides an impact for everything from vinyl to TV and Streaming.
The A25+ features an enhanced power supply design, new DAC and cutting-edge wireless capabilities straight out of the box. Snapdragon Sound delivers uncompressed digital audio via Bluetooth, while Auracast enables multiple compatible headphones or speakers to share music wirelessly, with no pairing required.
Powered by our 5th generation Class G amplifier design, you can expect the best sound quality and dynamics from what has always been a better sounding, and more efficient Class of amplifier.
Product Features
- ARCAM Class G amplification - for ultra-low distortion
- 2x 100W Power Output - powers loudspeakers effortlessly.
- Wireless audio with Snapdragon Sound and Auracast built-in - for the best sound with the most convenience
- Wired or Wireless Headphones - connect your headphones for quiet listening with, or without wires
- HDMI eARC/ARC input
- USB-C input
- Fine-tuned phono stage - ensures your records sound as detailed and engaging as possible
- Plastic Free Packaging - for easy disposal of natural materials
Technical Specifications
Continuous power output (0.5% THD), per channel
2 channels driven, 20Hz–20kHz, 8Ω 100W
2 channels driven, 1kHz, 4Ω 165W
Harmonic distortion, 80% power, 8Ω at 1 kHz, 0.002%
Analogue Inputs
Number of inputs: 3 (RCA pairs)
Signal/noise ratio (A-wtd, ref. 50W, 1V input): 106 dB
Frequency response: 20Hz–20kHz ± 0.2dB
Phono (MM) Input
Input impedance: 47kΩ + 100pF
Frequency response (ref. RIAA curve)
20Hz—20kHz ± 1dB
Digital Inputs
Supported Sample Rates (kHz)
USB-C Only 384, 352.8, 192, 176.4, 96, 88.2, 48, 44.1
Other digital inputs 192, 176.4, 96, 88.2, 48, 44.1
Bit depths (bits): 32, 24, 16
Frequency response (filter 1) 20Hz—20kHz ± 0.2dB
Signal/noise ratio (A-wtd, ref. 50W, 0dBFS) 109dB
Headphone Output
Maximum output level (RMS) into 32Ω/300Ω 2.5V/5V
Load range: 16Ω–2kΩ
Wireless
Bluetooth Version - 5.4; A2DP Sink/Source, AVRCP, BLE, SBC, AAC, aptX, aptX HD and aptX Lossless, LE Audio, Auracast
Bluetooth Transmitter Frequency and Power - 2,400 MHz to 2,483.5 MHz: <20dBm
General
Mains voltage: 100V, 110–120V or 220–240V, 50–60Hz
Power consumption (maximum): 500W
Power consumption (standby): <0.5W
Dimensions W x D (including speaker terminals) x H (including feet): 431 x 344 x 83mm
Weight (nett): 9 kg
Weight (packed): 12 kg
Included Accessories
Mains lead(s)
Remote control with 2 x AAA batteries
Quick Start Guide
Important Safety Instructions
We'd like you to meet the Q Concerto Meta

The Sublime three-way bookshelf speakers from KEF
The Q Concerto Meta HiFi speaker is the largest in the Q Series bookshelf speaker collection. Paying tribute to the original 1969 Concerto, KEF's first 3-way standmount speaker.
This configuration enables the Q Concerto Meta to achieve a frequency response down to 40 Hz, ensuring it's a superb choice for those who want floorstanding performance in a more manageable size.
Ideal for stereo setups or as part of a premium home cinema system it provides clear, detailed sound that belies its compact stature. This wired speaker is sure to deliver high-fidelity performance.
Product Features
- Three-way design for enhanced clarity and detail
- Metamaterial Absorption Technology (MAT™) eliminates 99% of high-frequency distortion for pure, natural sound
- 12th generation Uni-Q with MAT driver array for exceptional acoustic accuracy
- Enhanced crossover design with fine-tuned signal path for pristine, clean sound
- Hybrid aluminium cone LF driver for deep and powerful bass
- Magnetic grilles offer the perfect balance between driver protection and aesthetics
- Optional SQ1 Floor Stands available as separate item
- Available in Satin Black, Satin White and Walnut finishes
About the Q Meta Series
The Answer is always in the Q
Metamaterial Absorption Technology
The crucial advancement in the Q Series is the integration of Metamaterial Absorption Technology (MAT™). MAT is a highly complex maze-like structure that absorbs 99% of the unwanted noise from the rear of the driver, eliminating the resulting distortion and providing a purer more natural sound.
12 th Generation Uni-Q® - Sit anywhere, hear every detail
A 12th generation Uni-Q® driver array with MAT™ is found in all eight models of the Q Series. Uni-Q® acts as a single point source to disperse sound more evenly through the room, allowing everybody, wherever they are in the room, to enjoy the same natural, detailed sound for an immersive entertainment experience.
Speaker Performance
The evolved Q Series has been upgraded from a 2.5-way to a 3-way system design which ensures precise separation of high, mid, and low frequencies. This updated configuration significantly improves detail and clarity, bringing your music and movies to life.
Deep, Clean Bass
The Q Series features a hybrid bass driver design that provides stiffness to achieve a piston-like movement for better bass punch and speed. Combined with a port modelled using Computational Fluid Dynamics (CFD), this results in precise and agile bass management even at high output levels.
Redefined Crossover
A critical component of the Q series is the refined crossover, which ensures seamless integration of all speaker parts. More than 1,000 specific measurements are taken for each speaker model, allowing precise signal path and optimisation for best possible performance.
Shadow Flare
Derived from the flagship models, Shadow Flare is a carefully profiled transition that extends the waveguide effect of Uni-Q. This design reduces unwanted cabinet diffraction, allowing the treble to escape naturally without reaching the cabinet edges. The result is vastly improved fine detail reproduction.
Detail by Design
Magnetic Grilles
Colour-matched grilles are included with the speakers. The magnetic fixing provides a secure and precise fit, in keeping with the clean and seamless styling of the Q Series.
In the Box
- Q Concerto Meta (pair)
- Magnetic grilles (pair)
- Rubber feet
- Port bungs
- User manual and warranty information
Technical Specifications
DRIVE UNITS
HF: 19 mm (0.75 in.) vented aluminium dome with MAT
MF: 100 mm (4 in.) aluminium cone
Bass Unit:
LF: 165 mm (6.5 in.) hybrid aluminium cone
CROSSOVER FREQUENCY
<1% 91 Hz - 20 kHz
DIMENSION (H x W x D) WITH TERMINAL (PER UNIT)
Satin White
Walnut
SQ1 floor stands available in white or gray, sold separately
E&OE

