Upgrades to PSU 1 Power Supply

1] I agree on the feet - we will have to find better.

2] We tried many DC cables but none gave any improvement to the sound stage or sound quality. OK, differences were heard but differences are differences and none of them improved on sound stage or sound quality (tonality). Shielding here doesn't make any difference as I've explained before but as somebody called me ignorant in that post I'll not be linking to my response (it's on here somewhere). Some people use ferrites on the DC cable but without knowing the effective length of the imagined interfering frequency waveforms anti-nodes I don't see how they can really claim any improvement unless by chance it was placed in the right place. However, you will find lots of people using unshielded interconnects who also strongly disagree with me when I say the signal should be shielded. It's a mixed up world isn't it? My response tends to go like this: "If eye candy is needed then the sound is obviously no good", and if that were to be the case, then our direct sales qualify for a refund on return of the equipment within 28 days. Dealers may also offer a satisfaction guarantee, but is it our product/s causing you the SQ problem?

3] It costs around £10,000.00 to get a power supply approved to IEC60950, which the PSU1 is approved to and it cost me £10,000.00 working with these people (mains safety approval - it's in the instructions). A metal box would have to be very large to enable it to comply with double-insulation/class 2. If it were small it would have to comply with class 1, and then we wouldn't be able to sell it to people who only have 2 pin power points. The PSU1 is not meant to be seen. If you place it on a metal hi-fi unit it will induce vibrations into the metal (like all transformers do), which will in-turn induce vibrations into a pick-up cartridge. Our advice is to site it on the floor, and then it isn't seen...

Graham