01-07-13: Kijanki
"... My brother has NAD that originally had factory jumpers made of "U" shape steel rods. Replacing them with short Audioquest jumpers (basically short IC) opened treble..."
AMEN Kijanki!!
I replaced the rummy factory metal jumpers in a NAD C370 integrated amp used in a prior "B" system, with two aternatives:
(i) inserted the Audioquest jumpers; and then
(ii) quality VDH 6 inch length ICs
Result: in both cases, a large progressive improvement ....(i) just by going to to the Audioquest cheapos; and then
(ii) a more subtle but appreciable further improvement when I upgraded to the VDHs (still have 'em kicking around in a drawer - guess it's time to sell them cuz I don'y use them anymore)
In any case, the factory stock metal jumpers are noticeably inferior.
In fairness, I also professionally modded/upgraded the stock power cord configuration to a quality female connector that permitted a use of quality external Power Cord instead of the crap hard-wired-in power cord that came with the unit. That also made a huge improvement.
"... My brother has NAD that originally had factory jumpers made of "U" shape steel rods. Replacing them with short Audioquest jumpers (basically short IC) opened treble..."
AMEN Kijanki!!
I replaced the rummy factory metal jumpers in a NAD C370 integrated amp used in a prior "B" system, with two aternatives:
(i) inserted the Audioquest jumpers; and then
(ii) quality VDH 6 inch length ICs
Result: in both cases, a large progressive improvement ....(i) just by going to to the Audioquest cheapos; and then
(ii) a more subtle but appreciable further improvement when I upgraded to the VDHs (still have 'em kicking around in a drawer - guess it's time to sell them cuz I don'y use them anymore)
In any case, the factory stock metal jumpers are noticeably inferior.
In fairness, I also professionally modded/upgraded the stock power cord configuration to a quality female connector that permitted a use of quality external Power Cord instead of the crap hard-wired-in power cord that came with the unit. That also made a huge improvement.