Description
The A 88 Pro is a KT88 tube amplifier distinguished by its handmade construction featuring the finest point-to-point wiring. It incorporates two EI output transformers with a wide bandwidth and a specially designed toroidal power transformer. It uses two 6SL7 and two 6SN7 tubes in the preamplification stage, along with four KT88/6550EH tubes for push-pull AB1 amplification. This model allows selection between Triode and Ultralinear modes, thus offering flexibility in sound quality according to the user's preferences.
Its standout features include an accessible external bias adjustment with a BIAS meter for monitoring on the top of the amplifier, an external tube selection switch between EL34 and KT88 for easy tube replacement, and it comes equipped with a remote control. Furthermore, the A 88 Pro features a soft-start function (approximately 30 seconds) and can memorise the last operation once switched off, enhancing convenience and ease of use.
The quality of the components is exceptional, with the inclusion of a high-quality ALPS motorised potentiometer from Japan and a thickly silver-plated signal cable. To protect the tubes, it comes equipped with an easy-to-install tube cage.
The amplifier delivers an output power of 25W+25W in Triode mode and 45W+45W in Ultralinear mode, with a frequency response of 10Hz to 42kHz (-3dB) and a total harmonic distortion of 1% at 1kHz. Its signal-to-noise ratio is 93dB, with an input sensitivity of 300mV (integrated) and 1000mV (Pre-In), thus ensuring high-quality, low-distortion audio performance.
As for its dimensions, the A 88 Pro measures 420 × 382 × 195 mm (W×D×H) and has a net weight of 28 kg, making it substantial in both size and weight, reflecting its solid build and ability to deliver powerful and detailed sound.
Specifications:
- Power: 25W + 25W (triode) 45W + 45W (ultralinear)
- Frequency response 10Hz ~ 42kHz (-3dB)
- Harmonic distortion: 1% (1 kHz)
- Signal-to-noise ratio: 93dB
- Input sensitivity: 300mV
- Input impedance: 100kΩ
- Output impedance: 4Ω, 8Ω
- Voltage: 230V 50Hz
- Power consumption: 280W
- Vacuum tube usage: 6SL7x2 6SN7x2 KT88/6550EHX4
- Product size: 420x382x195 mm
- Net weight: 28kg















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