Soliloquy 6.2 Very Poor Treble .....


After several calls to David Berman at Soliloquy, without a response. I will put it to the Audiogoner's . Will I need to change the tweeter or rebuild the crossover to "brighten up" the highs in this speaker....Or should I just trade them off and start over ????. I kind of like the speakers if I could get them to sound a little better. Maybe that is why they are no longer in the speaker business...I think that changing the tweeter would be the easiest but I will be open-minded.....Thanks
autospec
Yes, it sure is fun to play with this stuff! After a while, just from doodling, you get the feel of how changes effect the sound, and how this so - called black art, to be even viewed only by the chosen ones, is really something we should be dabbling in.

Maybe I am getting confused via my own stupidity, but it looked to me that the Zobel was the small capacitor with the 4 ohm resistor. If I was able to see it, it would make more sense for me.

Again, I wouldn't run a Zobel on the tweeter, but that's just me (the shamans can now appear to burn me at the stake). It sounds like you are jumping the 4 ohm resistor and seem happy? If the way I am seeing the crossover is correct, and the small cap is in series with this resistor, try jumping the capacitor as well to bypass the Zobel entirely. This may be all that is needed.

Please let us know what you think after a few days. Is this the added sparkle you were looking for, without irritation? If not, we can throw a quick design together that would lower the parts quantity while raising the parts quality. As you said, FUN!
I have changed the 4 ohm resistor to a 2 ohm for a couple days....I'll let you know what happens.....
Good morning Guys.

Autospec check out this site http://www.apicsllc.com/apics/Misc/filter2.html it contains some really good stuff.

Reverse engineering the circuit, it appears we have a 2nd order Xover, an L-Pad, and a Zobel all wrapped into one... and somewhat mixed about but I suppose the specific order isnt all that important.

How did yor sound change Autospec? Better?
I am absolutely confounded by this...

Question #1. Dont both L-Pads or Zobel networks require a resistor to be wired in parallel?

All the resistors in this crossover are in series. Unless you count the first one. The first component, a 6.2ohm resistor, is wired to a large Cap which has three leads one of which goes to the Coil, which is parallel. Another lead goes to a smaller Cap which feeds the tweeter positive, therefore making this a 3rd order high pass. But wait theres more, a third lead from the aforementioned large Cap also feeds a 15ohm resistor, which also feeds the tweeter positive, making this a 2nd order and a 3rd order. My head hurts! ...or is this some kind of series matching network? [Q. 1(a)]

So question #2. Since the Coil is parallel and a resistor feeds it via a Cap. Would that resistor be parallel or equivalent to parallel?

...or am I just all wrong? If so, please set me free!
That is a "cool" web-site ....How in the world did you find it ? I have put it in my favorites. I have a old rheostat that is 0-20 ohms that I'm goint put in the crossover and listen to it at different setting untel I find where they sound the best . I will then measure it and put a resistor the same value....I'm still going to try the Ribbon tweeter....I have made all the measurements and they are almost the same.....The G2-si ribbon is 110 mm and the opening on the speaker cabinet is 112 mm....