(1) Source / cdp first, Full stop ..... in my direct and indirect experiences. The better the spinner unit, the more graphic the cable choice sensitivities and the degree of improvement with your selection of cable in matched lockstep to the choice of your ICs.
(2) it's no guarantee of automatic nirvana that all the components have to be all from the same PC brand. It's strongly suggested that you upgrade them all in the same manner as you did with the power amp: via an A-B direct shootout bake-off. Admittedly, it's a good start to include your amp power cord brand in your selection criteria.... However, Power cables -- like all cables-- , have a sonic signature that can be very system dependent.
(3) Raw price point in PCs is no yardstick selection criteria for audio improvement nirvana. Similarly mega-brand units won't guarantee any upgrade either.
For example, with my $12K spinner, the OEM supplied power cord (a quality build kit itself in the $300 range) was put to a direct bake-off against some quality-build units from heavyweight brands such as FURUTECH, SHUNYATA, OYAIDE, LFD, ATLAS, ECOSSE, JPS and others. Many of the latter retail up to the G-note price strata.
The dealer recommended that I stick with the OEM unit .... He was right ... It bested all the contenders and pretenders with MY kit, and absolutely smoked some of the mega-priced brands. The latter do yeoman service now in my B-system ... They just did not work in my A-system.
(2) it's no guarantee of automatic nirvana that all the components have to be all from the same PC brand. It's strongly suggested that you upgrade them all in the same manner as you did with the power amp: via an A-B direct shootout bake-off. Admittedly, it's a good start to include your amp power cord brand in your selection criteria.... However, Power cables -- like all cables-- , have a sonic signature that can be very system dependent.
(3) Raw price point in PCs is no yardstick selection criteria for audio improvement nirvana. Similarly mega-brand units won't guarantee any upgrade either.
For example, with my $12K spinner, the OEM supplied power cord (a quality build kit itself in the $300 range) was put to a direct bake-off against some quality-build units from heavyweight brands such as FURUTECH, SHUNYATA, OYAIDE, LFD, ATLAS, ECOSSE, JPS and others. Many of the latter retail up to the G-note price strata.
The dealer recommended that I stick with the OEM unit .... He was right ... It bested all the contenders and pretenders with MY kit, and absolutely smoked some of the mega-priced brands. The latter do yeoman service now in my B-system ... They just did not work in my A-system.