Outstanding Amplifiers That Deserve Your Attention We Recommend

The Musical Fidelity A1 revisits a historically significant integrated-amplifier design while retaining fully discrete, fully symmetrical pure Class A circuitry.

It delivers 25 watts into 8 ohms and can supply a maximum output current of 25 amps, with the ability to move into Class B operation when a temporary demand for additional current arises.

Its transformer follows the original concept but uses more efficient dual monorail windings, updated components, and improved thermal management. Independent power supplies for the left and right amplification stages are intended to improve power management and stereo imaging. The modest headline wattage makes speaker matching important, but the current capability gives the A1 more flexibility than its power rating might initially suggest.

Klipsch The Fives McLaren Edition is a powered bookshelf-speaker system rather than a conventional standalone amplifier.

Each driver has dedicated amplification: 60 watts for the carbon-fibre-cone woofer and 20 watts for the one-inch tweeter mounted in a Tractrix horn.

The two speakers operate in a master-and-slave arrangement, creating an amplification-inclusive system in a relatively compact format. McLaren-specific details include orange accents, a coordinated connecting cable, rubber bases, and the revised woofer cone. Buyers should approach The Fives as a complete speaker-and-amplifier package, not as electronics intended to drive separate passive loudspeakers.

The NAD M23 is a stereo power amplifier using Eigentakt technology manufactured by NAD under licence from Purifi.

Rated to deliver at least 200 watts per channel, it also provides dynamic power exceeding 260 watts per channel into 8 ohms and 520 watts into 4 ohms.

NAD attributes its flat, wide, load-independent response and very low harmonic and intermodulation distortion to the Eigentakt implementation. Switch-mode power supplies and Class D output stages support high efficiency and consistent operation across different speaker loads. Bridged mode also allows the M23 to serve as an expansion partner for the NAD M33, although any bridged configuration requires careful system and speaker matching.

The DDHIFI TC44 Pro addresses mobile listening rather than loudspeaker amplification.

This nine-gram dongle combines a dual Cirrus Logic CS43131 digital-to-analogue stage with a headphone amplifier delivering up to 120 mW into 32 ohms.

It accepts PCM data up to 32-bit/384 kHz and native DSD256, and its 4.4 mm headphone output is joined to the board with silver solder. Separate USB-C and Lightning versions accommodate different source devices, while the aluminium-alloy body, carbon-fibre rear panel, and strap eyelet support portable use. Prospective buyers should confirm that their headphones use a compatible 4.4 mm connection.

The Linn 360 range approaches amplification at the system level.

It includes the 360 Exakt Integrated and the 360 Exakt Passive with Aktiv Bass, both based on a four-way loudspeaker concept.

The driver complement comprises a 19 mm beryllium-dome tweeter, a 64 mm woven-carbon-fibre midrange dome, a 190 mm upper-bass driver, and a 220 mm low-frequency driver. Linn says its driver and amplification technologies are designed to reduce distortion, while Linn Power DAC technology contributes to low-frequency reproduction. Because the range includes integrated and partly passive configurations, buyers need to establish exactly where amplification is incorporated and what additional electronics their chosen version requires.

The Cambridge Audio EVO 150 combines Class D amplification, streaming, digital conversion, and broad network integration in one component.

Its ESS Sabre Reference ES9018K2M DAC handles PCM data up to 32-bit/384 kHz and DSD256, while network access is available through dual-band Wi-Fi or Ethernet.

Bluetooth 4.2 with aptX HD provides another wireless option, and HDMI ARC makes the amplifier easier to incorporate into a television-based system. A 6.8-inch colour display dominates the front panel, accompanied by a rotary-push control for volume, input selection, and menu navigation. This is the most overtly all-in-one amplifier in the selection, making it particularly relevant where fewer separate boxes are preferred.

The SMSL A50 is a compact Class D integrated amplifier based on two Texas Instruments TPA3116 chips.

It is rated at 60 watts per channel into 4 ohms or 33 watts per channel into 8 ohms, with both figures specified at 1% THD+N.

Bluetooth 5.0 enables wireless playback from a phone or tablet and can reconnect automatically to a previously paired device when the amplifier is switched on. Preset equaliser modes and manual bass and treble adjustment over a 14 dB range give users more control over tonal balance than a minimalist amplifier would provide. Its appeal lies in compactness, wireless convenience, and adjustment flexibility rather than elaborate system integration.

The Steinway & Sons Model D 15th Anniversary Edition is a fully active flagship loudspeaker system, not a standalone amplifier.

Each speaker contains two 400-watt Class D amplifiers, a DSP-based active crossover, and Lyngdorf RoomPerfect automatic room calibration.

Four low-frequency drivers, two midrange drivers, and a ribbon tweeter operate in an open acoustic design. The aluminium frame and piano-lacquer panels reflect the visual connection with Steinway & Sons grand pianos. This architecture removes the need to choose an external power amplifier, but it also makes the amplification, crossover, room correction, and speakers part of a tightly integrated platform.

The Unison Research Triode 25 Black Edition is a valve integrated amplifier distinguished by a polished black front panel, dark anodised chassis, and bronze accents.

The manufacturer says the Black Edition circuit has been refined through work on the signal path, power supply, grounding, and physical separation of the channels.

High-quality shielded cables are used for the audio signal where feasible, while the input selector relies on electromagnetic relays. Adjustable bias, two feedback settings, and selectable triode and output-stage configurations give the amplifier a more hands-on operating character than a set-and-forget solid-state design. At 20 kg, it also requires a suitably stable and well-ventilated support.

Rega designed the Mercury preamplifier and Solis stereo power amplifier as a technically matched, separately housed pair.

The Solis uses a fully symmetrical and fully discrete signal path, delivering 168 watts per channel into 8 ohms and 305 watts per channel into 4 ohms.

Its internal layout physically separates sensitive low-voltage circuitry from the high-current output stage to reduce interference. Balanced XLR and unbalanced inputs, a 12-volt trigger, and protection against short circuits, thermal overload, and DC offset support integration into a serious separates system. The Mercury provides the corresponding preamplifier stage, with an analogue core and digital flexibility, making the pairing more modular than an all-in-one integrated amplifier.