Craig B
Re:trophile
The bass won't have been altered, only your perception of how much bass is present in comparison to where the reduced treble emphasis is now.@Craig B Ok great now I can understand the prior post. (But almost not a word of this one above! Resonant frequency remains an unknown term).
Ok now I'm in a position (way back) trying to figure the pf cap thing out now I know that my perception tallies with what you'd expect. Good, I can surely progress from here.
So. I know altering this pf cap effectively --might-- act then, like a treble knob on a preamp. A loose analogy but I xan only cope with this level of simplicity. Might. It's not certain.
Does this cap --also-- change the nature of anything --other-- than the treble? IE does it both 'lower' the treble AND (possibly) at the same token 'up' the bass? Maybe in equal measure?
You see I'm struggling with a boomy boxy bass, as said. Now, I don't know if I've excacerbated this by changing the pf cap down from 470 to 100, or, it was just there before (& I'm just perceiving it more bc there's a little less treble).
Thanks ( I bet you're a father of some experience, being so patient with such an idiot as me). Capt
There may also exist a bit of a dip starting in the midrange/presence region that might aggravate things here. This is why I suggested trying adding another 100pF to what is in place now. I have a feeling that a capacitor value that is half way between where you are now and where things were before might help.
If you have a couple more 100pF polys why not try clipping them across +ve and -ve round back of each phono input socket like I described above. Might prove to be a cure for what ails your system at present, without risking damage to the phono cards from too much desoldering/soldering for the sake of experimentation.