Hi Francisco,

did you get your 7510 finished OK - how does it sound now ?

Upgrade to Wolfson WM8716 DAC chip - this is seen as a small improvement - it is also something I want to do with my 7510 :-)

The Beresford DAC upgrade which replaces the Burr Brown PCM1716 DAC chip with the pin-compatible Wolfson WM8716 DAC chip.
The work involved is the same as for the 7520 with the addition of 2 wires from pin-16 of the new DAC chip to decoupling capacitors

Op-amp upgrade - in addition to upgrading to the Wolfson WM8716 DAC chip you may want to upgrade the dual op-amp in the 7510
with an LM4562 dual op-amp. This upgrade should also include the addition of a 0.1uF decoupling capacitor.

all the best
Peter