Integrated amplifiers — Kora TB400

The TB400 is an integrated amplifier from Kora, positioned above the TB200 in the brand's amplifier range. Kora is a French manufacturer with a specialist reputation for tube-based amplification, and the TB400 represents a substantial expression of that engineering philosophy in an integrated format.

Position in line

It sits above the TB200 in Kora's integrated amplifier hierarchy. This positioning above the TB200 suggests the TB400 offers considerably more output and refinement, likely reflecting a larger transformer and output tube complement than the more accessible model below it.

Key specs that matter

Four single-ended inputs are provided. Rated output is 2 x 200 W into 8 ohms, doubling to 2 x 360 W into 4 ohms. Input impedance is 15 kOhm. Output impedance is 2000 ohms. At 130 x 420 x 420 mm and 27 kg it is a substantial, heavy chassis, consistent with the serious output figures this model claims.

Sound and use context

Expect a controlled, high-output presentation typical of a substantial integrated amplifier design - the considerable rated power here is unusual for a tube-adjacent French specialist brand, suggesting either a hybrid topology or a particularly ambitious pure tube output stage.

Pairing

Four single-ended inputs cover a modest to moderate source lineup without needing external switching, sufficient for most typical two-channel systems.

Alternatives

The TB200 sits below this model in Kora's integrated amplifier range, worth considering if this model's considerable 200/360 W output exceeds what a specific system and loudspeaker pairing requires. Kora relatively specialist reputation as a French tube amplifier maker means seeking out independent reviews is worthwhile before committing to a purchase, given the brand more limited international distribution compared with larger, more established manufacturers. A dealer conversation clarifying the exact output topology behind these considerable power figures is worth having before assuming a conventional pure tube design. Overall this remains a capable choice for a listener specifically drawn to Kora tube-based engineering philosophy. A dealer visit remains the simplest way to compare current pricing between the TB200 and TB400. Cable and stand choices matter far less at this price point than getting the basic loudspeaker pairing right. Adequate ventilation space around the chassis also helps this amplifier run reliably.