Final 0.3 els

[TimA]

Darren,

The diaphragm needs to be fully charged for full sensitivity. A low charge, for whatever reason, will result in low output.

The high voltage supply to the offending diaphragm may be faulty, or it could be O.K. but may be unable to supply enough current to the diaphargm in order to keep up with charge lost from the diaphragm due to leakage through dust build-up. I suggest a thorough discharge (unplug and wait 24hrs) followed by a good vacuum clean, particularly around the back in those not so easy to reach parts! We recently incorporated a transparent mylar dust-cover (a la Quad) on the rear of ours so that vacuuming would be necessary on the front only - this makes proper cleaning much easier.

Tim.

[systema]

Thanks Tim,
I will do that and let you know what hapens.
Man I am learning all the time about these electrostats.
I appreciate your advice. It is really handy to have someone like you to talk to.
I just hope that is what is causing the problem.
Thanks again.
Yours sincerely,
Darren.

[systema]

Hi Tim,
I vacuumed the panel which had the desired effect.
I think I will remove the bypass capacitors as the folks at auricap suggest and see what the result is.
If I get any interesting results i will let you know.
Thanks
Darren

[Tim Keenan]

I know this discussion was some time ago, but if any of you Final 0.3 modders are still interested/ still have the speakers, I'd like to know where you ended up with your mods.

If you look at another current thread you'll see my problem is too much bass output. However, having tamed that (albeit crudely) I am beginning to perceive the upper-bass thinness that previous posters have discussed. This thinness comes with a slight phasey or clangy character on some recordings, especially of soprano voices and hf transients, e.g. from piano. Now it could be that as this is not always present, my Finals are simply revealing things as they are. Have any of you experienced this?

Tim

[TimA]

Tim,

Well, nothing more has been done at this end since earlier.

This thinness comes with a slight phasey or clangy character on some recordings, especially of soprano voices and hf transients, e.g. from piano.

As a pianist myself I find the Finals a difficult listen (I much prefer Quads) and even with the mods outlined earlier I agree with your description, particularly ''phasey or clangy'' which is spot on, in my opinion. However, the 0.3s to which I made the circuit changes belong to my piano tuner....who likes them!

Tim.