We revised Eduardo's 405.
He uses it in his studio to monitor his recordings.
We used the Dada dual-mono power supply and Burr Brown OPA627 opamps.
Edouardo wrote:
"Received my Quad 405 with your upgrade plus the Velleman K4700 loudspeaker protection.
The packing was very secure, well done!
The sound now is much more open and extended; bass to trebles through the whole spectrum are very clear and rich. A very wonderful sound. I'm very very happy . I now can hear very clear my mixing and recording work in much more detail.
Thank you very much for all you wonderful and professional work - I have no hesitation in highly recommending your upgrade services and give you 10/10.
Best wishes to you all (I'm definitely a happy customer)."
Click on the picture to visit Eduardo's website.
Stefaan
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