Meridian Unplugged - Powered by MrTechGuy.co.uk Forums Discussion Meridian - Systems Power supply upgrade

Ferrari,

do you rally have that type from Bicker SNP-Z101 ?
The specs shows its still a switching PS and have only less ripple
like 100mV instead of 120mV and for 5 V its the same 50mV.

The calex LINEAR PS looks much better for ripple below 5mV !
But the 32305C have less current on the +12 VDC side-only 1 Amp.

My old original PS from M the
ASTEC 5A40-1313 and
UMEC UP0653S-01
have 2,5 or 3.0 A on the +12 V side.
I dont know how much the G68 or 861 needs.
The +5V looks good as original M have 5A or 6 A
and the -12V side is 0.35 or 0.5 A .

The newest PS from M looks different- I have to take a look-.,
but I dont know the data.

But "ripple" is only one characteristic and also you have to see HOW the measured the "ripple",
the important data are the impedance with frequency of the PS and that from booth sides.
That means what the electronic will "see" looking to the PS,
and what get blocked from the main voltage to the PS !
And HOW data influences here the sonic impression, is not very investigated.
Shure less ripple make less distortions, but I mean the impedance is much more important.
So only hearing test can help here either somebody make some scientific studies on that.

Anyway, the PS is very basic influence to the sound.

Robert