damping (BD-Design)

by GC, Friday, August 05, 2005, 09:44 (6831 days ago) @ GC

Hi Eddie,

Damping material doesn't change the impedance much but if you want to have equal impedance peakes than play with the port length.

I always mix the direction but if you would close the port by 1/3rd and measure the impedance again then you'll see that it becomes more even or less even.

Adding too much damping material kills the liveness, as long as there is no hollowness heard then you have used enough, probaly a bit too much.

supply.) To my surprise the sound became gradually better and by now beats
the Theta in all respects, even the width and the precision of the sound
stage. Any idea what changes I can expect from replacing my CD-transport
with a laptop?

The used Black Gate capacitors need time to burn in before they perform optimal. Even when used and then not used for some time makes them more or less behave like new (needing time to burn in again).

What changes you'll hear depends on the quality of your transport...

You do have a PC and USB input so setup your PC and give it a try!

The only problem remaining is the hum in my amplifiers. I tried many
things with cables, grounding, shielding etc. Two days ago I suddenly got
into a situation where this hum is inaudible at the listening position so
for the moment I stopped to find the cause and I am enjoying many new
details on old CDs.

Most hum heard is in opposite phase so if both bass channels are equal and you're sitting in the middle then the hum is highly reduced...

Ciao,

Bert

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