The ax-Amp: a 60W RMS class A Current Feedback Amplifier

Click this link to order 2 off ax- Amplifier PCB’s https://hifisonix.com/shop/2-off-ax-amplifier-module-pcb/ Part 2 of the ax-Amplifier has just been published in audioXpress, 15th April, covering the power supply, power control, mechanical assembly and wiring, followed by detailed measurements. Here is a short synopsis provided from the AX website:- Click on the link to visit audioXpress […]

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nx2-Amplifier Update

April 18th Update: The first nx2 proto board has been assembled and basic DC tests completed. This covers output stage quiescent current adjustment, DC offset adjustment and checking that all the DC voltages are correct, along with basic stability testing i.e. no oscillation. The next step will be to take an initial look at the […]

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The X-Altra Mini II ‘BB’ Line Preamplifier – assembly and test – June 10th update

June 10th Update. Board testing is complete, and it works as required and flawlessly with the Remote Control board (on the right-hand side of the picture below). All power to the remote board comes in via the 16-way ribbon cable, and the only other wiring will be as follows: – mains into the PSU board […]

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