TAC 88
Tube integrated amplifier fitted with two KT-88 power valves per channel, designed to offer more power than the T.A.C. 34.
Description
The TAC 88 is a stereo tube integrated amplifier, designed to reproduce sound by combining a preamplifier and a power stage within a single unit. It follows the same operating principle as the T.A.C. 34, but stands out through its higher output power.
This difference in power stems from the use of two KT-88 valves per channel, compared with a different configuration on the T.A.C. 34 model. The KT-88 is a power valve recognised for its ability to deliver a substantial output current, allowing this amplifier to supply greater energy to the speakers connected to it.
This type of amplifier is aimed at tube sound enthusiasts seeking additional power compared with an entry-level model, particularly for driving more demanding speakers or larger listening rooms.
What to check before buying used
On a tube integrated amplifier of this power, the KT-88 valves deserve priority checking: wear or a poor match between the two units on the same channel results in a sound imbalance or distortion at high volume. The volume potentiometer may develop crackling when turned, a sign of oxidised tracks, while the capacitors in the power supply stage, subjected to heat from the valves, are the component most exposed to ageing in this type of design. A check of the valve bias and chassis ventilation is also recommended before any prolonged use.
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