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Review: Kora TB140 Test. Impressive Musical Quality

Something unique about Kora, and the TB140 in particular, is that it includes tubes in the audio signal path dedicated to amplification. Assisted by transistors, these amplify the signal to generate the current required by the speakers without the need for an output transformer. This technology, named Square Tube, was developed by Kora to ensure that the tubes always work in the same way, regardless of which tubes are used.


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