Amplifiers That Made Our Editors Take Notice

The McIntosh MC2.1KW is a large-scale monophonic power amplifier built around a three-chassis layout.

The signal circuits are divided between two upper blocks, while the lower section houses the traditional blue meter along with the connection array.

Its three pairs of speaker terminals are intended for matching 2-ohm, 4-ohm, or 8-ohm loudspeaker loads, and the construction combines tempered glass, steel, aluminum, and four passive cooling radiators. With a stated output power of 2,000 watts, this is clearly positioned for systems where a dedicated mono amplifier is appropriate rather than for compact or casual setups.

The Denon PMA-600NE is an integrated stereo amplifier aimed at buyers who want traditional hi-fi connectivity with useful modern inputs.

Its High-Single-Push-Pull amplification circuit is described as minimizing distortion while supporting enhanced frequency and dynamic range and higher output current capacity.

The power supply uses high-capacity filter capacitors and separate sources for functional sections, while the anti-resonant chassis incorporates Denon’s Direct Mechanical Ground technology. Connectivity is broad for this class of product, with four line inputs, a recording input and output, a dedicated phono input, two optical inputs, one coaxial input for PCM signals up to 24-bit/192 kHz, and Bluetooth with aptX support.

The Luxman LX-380 continues the company’s classic tube integrated amplifier lineage with a push-pull circuit topology.

Its driver section uses three ECC82 tubes, while the output section uses four 6L6GC beam tetrodes, with stated output of 18 watts per channel into 8 ohms.

The amplifier also includes a built-in phono stage for MM and MC cartridges, plus an infrasonic filter intended to reduce low-frequency rumble. Its wooden case, aluminum front panel, many physical controls, headphone socket, balance and tone adjustments, loudness function, and LECUA volume attenuator give it a distinctly tactile, traditional character.

The NAD C 268 is a two-channel power amplifier rather than an integrated amplifier, so it is designed to work with a separate preamplifier or source with volume control.

It is housed in a metal case with internal layout intended to allow free air circulation without forced cooling.

The amplifier provides both balanced inputs and RCA inputs, and its Class D output stages are built on Hypex UcD modules. Each channel has its own rectifier with high-capacity filter capacitors, and the source material emphasizes reduced charge and discharge time as important for reproducing energetic dynamic passages accurately.

The Cayin Jazz 100 is presented as an enhanced successor to the Jazz 80, with changes to design, components, and functionality.

It operates in pure Class A and is specified at 2 x 46 watts.

The output stage uses 805A generator triodes, while the preliminary and control stages use 6JC6, 6SN7, and 6L6 tubes from Mullard. Alongside its analog tube architecture, the Jazz 100 adds contemporary convenience through Bluetooth 5.0, including aptX HD and aptX Low Latency codec support, making it one of the more hybrid traditional-modern amplifiers in this selection.

This article is not an amplifier recommendation in the strict hi-fi component sense, but it is relevant to the broader powered-audio landscape because the wireless speaker contains several upward-facing speakers and a compact amplifier.

Its main focus is visual rather than amplifier design: a backlit glass screen contains ferromagnetic fluid that reacts to changes in the magnetic field during music playback, producing a lava-lamp-like display.

The unit also uses a 3D-printed case and an Arduino Nano-based visualization system.

The Beosound A5 is a portable wireless speaker system rather than a separate amplifier, but it includes four amplifiers driving four emitters with a total stated power of 280 watts.

Its 360-degree radiation pattern is produced by a 130 mm bass driver, two 50 mm midrange drivers, and a 20 mm tweeter.

The design references retro Bang & Olufsen styling and was developed with GamFratesi, while the feature set includes a battery rated for up to 12 hours, IP65 protection, Bluetooth 5.2, AirPlay 2, Chromecast, Spotify Connect, and support for Bang & Olufsen’s Mozart platform.

The Denon Home Subwoofer is not a standalone amplifier recommendation, but its powered design includes a Class D amplifier driving a downward-facing 8-inch driver through an optimized bass-reflex port.

It is designed as an addition to Denon Home systems and can be paired with products such as the Denon Home Sound Bar 550, with Denon Home speakers used as rear satellites for a 5.1 setup.

HEOS wireless technology handles control and audio transmission, while the HEOS app allows filter frequency, phase, and level adjustments. Wired network connection is also supported through RJ45, and a USB port is provided for reading audio tracks from storage media.

The Hegel H200 is described as a deliberately focused all-in-one amplifier.

It combines Class AB amplification rated at 150 watts per channel into 8 ohms with digital conversion, network streaming, and vinyl support, while avoiding a large color display or an expansive wireless feature list.

Its minimalist front panel uses two rotary controls and a central display that shows essential information such as input, volume, and sampling rate where relevant, but not album art or animated VU meters. The availability of black and white finishes adds installation flexibility, while the SoundEngine 2 feed-forward design is identified as part of the amplifier’s engineering foundation.

The Quad Artera Pre is a preamplifier, so it belongs in systems where source selection and control are separated from power amplification.

Its power supply uses 11 adjustable power rails, some described as ultra-low-noise.

The defining feature is Quad’s Tilt tone control, which changes the relationship between upper and lower frequencies in 1 dB steps around a stationary point of about 700 Hz, effectively leaning the tonal balance one way or the other. It also offers three selectable bass settings, input-specific adjustment combinations, four stereo RCA inputs including a Class A phono input switchable for MM or MC cartridges, one balanced XLR input, and direct mode for all inputs.