Choosing an amplifier starts with identifying the job it needs to perform.
An integrated model combines control and speaker amplification, while a preamplifier requires a separate power amplifier.
Monoblocks dedicate one amplifier to each channel, and headphone amplifiers are designed around the electrical demands of personal listening. Connectivity and system architecture are just as important as output figures. Vinyl listeners may need a phono stage, digital systems can benefit from an onboard DAC or streaming, and balanced connections may suit systems built around XLR-equipped components. Stereo and mono operating modes also provide different routes for configuring or expanding a system. The amplifiers here address distinctly different uses, from compact Class D power and flexible tone control to modular integration, tube separates and high-output headphone listening. Published power and distortion figures are included where supplied, but they should be read alongside load conditions, connectivity and the role each amplifier is intended to play.
1. Aiyima A70 MONO: Class D Monophonic amplifier
The Aiyima A70 Mono is a TPA3255-based Class D monoblock with full-range and subwoofer operating modes.
The Aiyima A70 Mono is a Class D monoblock based on a TPA3255 amplifier IC and an NE5532 op amp, with output rated at up to 300W into 4 ohms.
Its PFFB circuit is accompanied by quoted THD+N of 0.0001% and a signal-to-noise ratio of at least 116 dB.
System options include RCA and balanced XLR/6.35mm combo inputs, full-frequency and subwoofer modes, an active-subwoofer output, a speaker terminal that can feed a passive speaker or subwoofer, +6 dB RCA gain and a 12V trigger.
Best for: Mono speaker or passive-subwoofer systems
- Up to 300W into 4 ohms
- RCA and balanced combo inputs
- Full-range and subwoofer modes
- 12V trigger and active-subwoofer output
Verdict: A flexible Class D monoblock for systems that need substantial quoted output, balanced connectivity and dedicated subwoofer controls.
2. Mola Mola Kula – Optional DAC and phono stage in balanced circuit with processor control
The Mola Mola Kula combines balanced integrated amplification with optional DAC and phono-stage modules.
The Mola Mola Kula is a balanced, processor-controlled integrated amplifier with a modular approach to sources.
Its base configuration provides three balanced XLR and three unbalanced RCA line inputs, while optional phono and DAC modules allow it to take on additional duties.
The DAC section follows the design of the Tambaqui model and adds five digital inputs, Roon endpoint support and Bluetooth. Mola Mola specifies 150W per channel into 8 ohms and 300W into 4 ohms.
Best for: Modular high-end integrated systems
- Six analog inputs as standard
- Optional DAC and phono modules
- Balanced circuit architecture
- 150W/8 ohms and 300W/4 ohms per channel
Verdict: The Kula suits listeners who want a balanced analog integrated amplifier that can expand to handle phono, digital and network sources.
3. Lorenzo Audio Labs 211PP power amplifiers and 2A3 preamplifier debut at HEM
The Lorenzo Audio Labs set pairs 211PP push-pull tube monoblocks with a two-cabinet 2A3 preamplifier.
Lorenzo Audio Labs’ first active electronics comprise the 211PP mono power amplifier and a two-cabinet 2A3 preamplifier, both using tube circuits.
The 211PP employs directly heated 211 triodes in a push-pull configuration and is specified to provide 55W without feedback.
Its output stage includes a 12kg dual Core C amorphous transformer. Panzerholz cabinets, wood inlays and a high-gloss finish carry the construction style of the company’s loudspeakers into the amplifier range.
Best for: Statement tube-based separates systems
- All-tube preamp and mono power amplifiers
- 55W no-feedback push-pull 211 design
- Panzerholz enclosures
- 12kg amorphous-core output transformer
Verdict: This ambitious preamp-and-monoblock package is aimed at systems built specifically around no-feedback tube amplification and substantial handcrafted enclosures.
4. Accuphase C-2850: Preamplifier boasting outstanding performance and design
The Accuphase C-2850 combines AAVA volume control with a fully balanced circuit and a lacquered persimmon top cover.
The Accuphase C-2850 is a fully balanced preamplifier built around the company’s patented AAVA analog volume control.
Rather than inserting a conventional attenuator into the signal path, AAVA varies gain according to the volume setting while maintaining consistent impedance characteristics.
The power supply uses two shielded toroidal transformers and four 10,000µF filtering capacitors, while each channel contains eight signal-amplification units. Construction includes an 8mm anodized-aluminium chassis, a solid-aluminium volume control and a lacquered Japanese persimmon top cover.
Best for: Balanced separates needing precise level control
- Patented AAVA volume control
- Fully balanced signal path
- Dual shielded toroidal transformers
- Eight amplification units per channel
Verdict: The C-2850 is a highly engineered preamplifier for systems where balanced architecture, elaborate power supplies and fine volume adjustment take priority.
5. Quad Artera Pre: Preamplifier with Tilt tone control
The Quad Artera Pre offers Tilt and bass controls alongside line, balanced and switchable MM/MC phono inputs.
The Quad Artera Pre stands apart through its adjustable Tilt control, which changes the balance between upper and lower frequencies in 1 dB steps around a fixed point near 700 Hz.
It also provides three bass settings of -4.5 dB, 0 dB and +4.5 dB, with adjustments assignable individually to each input.
Connections include three line-level RCA inputs, a Class A phono input switchable between moving-magnet and moving-coil cartridges, and a balanced XLR input. Every input can operate in a direct mode intended to minimise intervention in the signal path.
Best for: Vinyl systems and listeners who value tone shaping
- Tilt control adjustable in 1 dB steps
- Three selectable bass settings
- Switchable MM/MC Class A phono input
- Direct mode available for every input
Verdict: The Artera Pre is especially useful when flexible analog tone adjustment and built-in support for both MM and MC cartridges matter more than strict minimalism.
6. Electrocompaniet EC 4.8 MKII: Preamplifier that occupies a flagship position
The Electrocompaniet EC 4.8 MKII houses isolated dual-mono channels behind the brand’s black acrylic front panel.
The EC 4.8 MKII is Electrocompaniet’s flagship preamplifier, using a balanced circuit arranged according to dual-mono principles.
Its channels are isolated from one another and placed on separate circuit boards, while the signal path is DC coupled from input to output.
Front-panel controls provide stepped volume adjustment and input selection, with further settings accessible through a menu. The low-profile chassis sits on four anti-vibration feet and uses a black acrylic fascia with a display for input and volume information.
Best for: Balanced separates, including Electrocompaniet systems
- Balanced dual-mono topology
- Channels on separate circuit boards
- DC-coupled signal path
- Stepped volume and menu controls
Verdict: The EC 4.8 MKII is a purpose-built flagship preamplifier centred on channel separation, balanced operation and straightforward system control.
7. Topping LA90 Discrete: Compact and elegant amplifier
The compact Topping LA90 Discrete can operate as a stereo amplifier or as one half of a paired-mono system.
The Topping LA90 Discrete is a compact amplifier with stereo and mono operating modes, variable gain and a discrete NFCA circuit.
Its balanced connections accept either XLR or 6.35mm TRS plugs through combo sockets.
Topping quotes THD+N below 0.0001% under a 5W load into 4 or 8 ohms. The front volume control can be bypassed for use with a separate preamplifier, an especially practical option when synchronising a pair of units in mono operation; minimum impedance in mono mode is stated as 4 ohms.
Best for: Low-distortion stereo or paired-monoblock systems
- Stereo or mono operation
- XLR/6.35mm TRS combo connections
- Variable gain and volume bypass
- Quoted THD+N below 0.0001% at 5W
Verdict: The LA90 Discrete offers flexible system integration for users who need balanced input, preamp-controlled operation and the option to move from stereo to paired mono amplifiers.
8. Canor Audio Virtus A3: High-Power Dual Mono Hybrid Amp
The Canor Audio Virtus A3 is a dual-mono hybrid integrated amplifier with an LCD touchscreen and two headphone outputs.
The Canor Audio Virtus A3 is a dual-mono integrated amplifier with analog and digital inputs, an E88CC tube in each preamplifier stage and two front-panel headphone jacks.
It is rated at 100W per channel into 8 ohms and 150W into 4 ohms.
Its power section combines a tube-based balanced differential input with Current Dumping architecture: a low-power Class A stage remains in control of the speaker load, while a Class AB stage supplies additional current when required. A 1.3-inch LCD touchscreen handles front-panel interaction.
Best for: Hybrid integrated systems with digital sources and headphones
- 100W/8 ohms and 150W/4 ohms per channel
- Fully dual-mono construction
- Analog and digital inputs
- Two front headphone jacks
Verdict: The Virtus A3 brings tube-equipped preamplification, dual-mono construction and solid-state output power together in a versatile integrated design.
9. Aune S17 Pro: 7.5 Watt Class A Headphone Amplifier
The Aune S17 Pro combines Class A headphone amplification, selectable current settings and preamplifier functionality.
The Aune S17 Pro is a Class A headphone amplifier that can also serve as a preamplifier in a hi-fi system.
Its discrete amplifier stage uses paired JFETs, and the unit provides RCA and balanced XLR inputs along with balanced outputs.
Output is rated at up to 7.5W, with stated headphone support spanning impedances from 32 to 600 ohms. An R2R volume control, selectable 50mA and 100mA current levels, and a colour display showing current, temperature, output type and volume provide detailed operational control.
Best for: Demanding headphones and desktop preamp duties
- Up to 7.5W output
- Support for 32-600-ohm headphones
- RCA and balanced XLR inputs
- Headphone-amplifier and preamp operation
Verdict: The S17 Pro is a capable option for listeners who need high Class A headphone output, balanced connectivity and the ability to control a separate hi-fi power amplifier.
10. Elipson Connect 2130 Xi: Compact amplifier featuring streaming capabilities
The Elipson Connect 2130 Xi integrates Class D amplification with Wi-Fi, Ethernet, wireless casting and multi-room playback.
The Elipson Connect 2130 Xi combines compact Class D amplification with extensive network playback.
It is rated at 130W per channel into both 8 and 4 ohms and can be configured as a mono amplifier delivering a stated 250W RMS and 500W peak into 8 ohms.
Wi-Fi and Ethernet provide access to supported streaming services, while AirPlay 2, Chromecast, Bluetooth 5.1 and multi-room functionality broaden device integration. Its ESS Sabre ES9023 DAC supports formats up to 24-bit/192kHz.
Best for: Compact streaming-led speaker systems
- 130W per channel into 8 or 4 ohms
- Wi-Fi and Ethernet streaming
- AirPlay 2, Chromecast and Bluetooth 5.1
- Digital conversion up to 24-bit/192kHz
Verdict: The Connect 2130 Xi is the most direct fit here for a discreet system requiring speaker amplification, major wireless platforms and multi-room playback in one component.
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