Linear wall wart PSU tested...
I have been running the Octava distribution amp on it's original SMPS wall wart since i installed it so i guess i'm used to how the picture looks on my TV.
The standard unit is rated at 2.5A, i have no idea why as 12.5W is quite a bit to dissipate in a 7" x 3" x 1" case. I thought i'd try out this linear regulated wall wart which is rated at only 1.2A :rolleyes:
Needless to say it works...
Very well indeed!
Upon powering up the TV & blu ray player i was faced with the BD players splash screen, i immediately noticed it was different! There was always a bit of distortion to certain parts of it that looked visibly better with this linear PSU :) There was simply less distortion in the picture, it looked more "solid" for want of a better word..
Onto a film i know very well indeed :eyebrows: Mr Cameron & his film Avatar... I think the easiest place to start is to say what hasn't changed & that would be the sound as i'm not listening to the sound via the TVs speakers :eyebrows:
In every other respect things have changed though. Contrast is up, colours are more saturated, there is less visible noise. Edges are sharper, motion appears to be better & the whole picture appears to be more 3 dimensional with increased detail :scratch:
I'm beginning to think that i'll have to recalibrate the TV as the differences are that startling. Before i do that though i have just purchased a new 3.5Amp CB power supply that i'll modify to output 5V DC - Yes it has made that much difference :eyebrows: As i'd much rather have an overated PSU than underated this is the way i'm going, i'm also pretty sure that the CB PSU will be better regulated than this wall wart which can only possibly benefit things further. I'll also install a screened DC lead to the Octava, thanks to Chris (The Grand Wazoo) i happen to have some nice Mil spec silver plated screened cable here that is ideal for the job :cool:
I'll test the Mark Grant mains cable another day, possibly tomorrow.. For now though it's back to the music & bye bye Pandora :)
I'll be honest & say that this has got me wondering if a linear PSU powering the blu ray player wouldn't be a bad idea. I happen to have a couple of the same model so while one might be in the rack i can play with the other one at my leisure :smoking: