Интегральные усилители — Canor Audio AI 2.10

Canor Audio of Slovakia builds the AI 2.10 as a hybrid integrated design, pairing a valve preamplifier stage with a class D power section. It belongs to the Performance line of the maker, where it shares the catalogue with integrated models such as the solid-state class A AI 1.20 and the VIRTUS A3 and VIRTUS I4S. It is offered in black or silver. In Germany the list price is EUR 3,849, while the US figure is USD 4,000.

Key specs that matter

Output is 2 x 100 W into 8 ohm and 2 x 150 W into 4 ohm. Input sensitivity is 400 mV for full output at 1 kHz, and all inputs present an impedance of 30 kohm. Frequency response runs from 20 Hz to 20 kHz within 0.3 dB at 5 W. THD stays below 0.02% at 1 kHz and 5 W, with a noise floor 95 dB below the reference level. The valve stage uses two selected 6922 double triodes. The chassis measures 435 x 120 x 405 mm and weighs 15 kg, and the mains rating is 230 V at 50 Hz with a consumption of 450 VA.

Engineering and use context

Rather than feeding the class D modules from a switching supply, Canor uses a filtered and tuned linear supply built around an oversized toroidal transformer, a choice the maker links to low noise. Additional LC filters with very low impedance suppress the carrier frequency of the class D stage at the outputs. Volume is set by a precise relay attenuator in the tube preamplifier, so the signal does not pass through a carbon track potentiometer. The circuit boards are made with the CMT technology developed by Canor, intended to reduce dielectric losses in the PCB material. The low chassis lets the amplifier fit into cabinets and shelves where taller valve designs would not.

Pairing

Four RCA and two XLR inputs give room for six line sources, and the XLR path stays fully balanced all the way to the power amplifier, which favours a DAC or streamer with balanced outputs. A phono stage is not built in, so a turntable needs an external preamplifier on one of the RCA inputs. Its power reserve lets the AI 2.10 drive typical two-way and three-way passive loudspeakers of moderate sensitivity, and the class D output stage keeps heat low in closed furniture. The valves sit in the preamplifier only, so the power section does not depend on output tubes that need periodic replacement.

Alternatives

The Canor AI 1.20 is an integrated alternative with a solid-state output stage working in pure class A up to 50 W per channel.