The Heed Canalot III is a compact class-A headphone amplifier with the interesting option of choosing between various external power supply units. Heed offers four different power supplies that works with the Canalot: The standard X-PSU, the Q-PSU (with a matching chassis), the Obelisk PX and finally the Thesis Pi (which simultaneously can power another unit, like the Thesis Alpha preamplifier/DAC or … Continue reading HEED CANALOT III REVIEW