Интегральные усилители — McIntosh MA2375

The McIntosh MA2375 is an all-tube integrated amplifier, described by the company as its first such model in over a decade, combining a tube preamplifier and a tube power amplifier in one unit. It was announced on June 3, 2026 at USD 15,000 in the USA, GBP 16,900 in the UK and EUR 19,500 in Europe. It carries dual blue watt meters on a dual-layer chassis with a polished stainless steel finish and a 3-year limited warranty.

Key specs that matter

Rated output is 75 watts per channel into 4, 8 or 16 ohms from 20Hz to 20kHz, with 0.5% maximum THD at rated power. Frequency response is plus 0, minus 0.5dB from 20Hz to 20kHz and plus 0, minus 3dB from 10Hz to 50kHz. There are six inputs - two balanced at 44k ohms, three unbalanced at 22k ohms and one phono input switchable between moving coil and moving magnet, with loading from 100 ohms to 47k ohms and 50 to 400pF. Sensitivity is 600mV balanced, 300mV unbalanced and 3mV phono. Signal-to-noise ratio is 95dB for high level inputs and 75dB for phono in both MC and MM modes. Damping factor is above 22 and dynamic headroom is 1.2dB.

Engineering and use context

The power section uses four KT88 output tubes and four 12AT7 drivers, while the preamplifier runs on two 12AX7A and two 12AT7 tubes. Output transformers follow the Unity Coupled Circuit design. Protection comes from Power Guard Screen Grid Sensor and from Sentry Monitor, which guards against short circuits without fuses. A 5-band analogue equalizer can be bypassed. The High Drive headphone output on a 6.35 mm jack includes Headphone Crossfeed Director (HXD). The amplifier measures 45.2 x 25.2 x 51.9 cm and weighs 42.2 kg, with a shipping weight of 46.7 kg. It draws 3.6A at 120V, 50/60Hz, and less than 0.25 watts in standby.

Pairing

Speaker cables connect to patented gold-plated Solid Cinch terminals with outputs for each impedance. A subwoofer output and one unbalanced preamp output are fitted, and Home Theater PassThru allows the MA2375 to be used within a multichannel home cinema. Maximum preamp output reaches 16V balanced or 8V unbalanced. A remote control is supplied, and an RS232 port together with Power Control outputs handles integration with other McIntosh components. Input level matching lets each source be trimmed to a similar volume.

Alternatives

The McIntosh MA252 is an integrated amplifier of the brand with a tube preamplifier stage and a solid-state output rated at 100 watts per channel into 8 ohms.