resistor in series with tweeter...

[Anastasios Kotsikonas]

I anticipate with the arrival of my new amp the highs will be too bright,
given I am getting a bright amp and have dome tweeters (brands
are not important). Therefore, I want to experiment with putting a resistor
in series with the tweeter and I was wondering where I should do this: before
the crossover, or at the tweeter's + terminal? Notice my speakers can be
biwired and I was thinking of putting the resistor at the binding post for
the high frequencies. Suggestions? What values should I use? Increments
of 0.5 ohm should be OK I would think.

I also need to know where I could buy high quality hi-wattage resistors...

thanks

tasos

[PETER LARSEN]

AK> I anticipate with the arrival of my new amp the highs will be too
AK> bright, given I am getting a bright amp and have dome tweeters
AK> (brands are not important). Therefore, I want to experiment with
AK> putting a resistor in series with the tweeter and I was wondering
AK> where I should do this: before the crossover, or at the tweeter's +
AK> terminal? Notice my speakers can be biwired and I was thinking of
AK> putting the resistor at the binding post for the high frequencies.
AK> Suggestions? What values should I use? Increments of 0.5 ohm should
AK> be OK I would think.

If there is a problem with the speakers, then it was there all along,
and if there is a problem with the amp, why buy it? - get something that
matches your system. For attenuating your tweeters, you may want to look
into getting an 8 ohm variable 'L-pad', sonically those are marginally
less good than fixed attenuation resistors, but they are really nice for
experimenting with what the attenuation should be. And it should be
placed *after* the cross-over and *before* any zobel-network on the
tweeter. If you don't know what a 'zobel-network' is, don't worry, it
probably won't be too much of a problem in case it is (logically wrong)
integrated in the cross-over. In my opinion the zobel-components
(compensation for impedance rise at high frequencies) should _always_ be
placed on the loudspeaker-unit in question, because they compensate for
a property of the unit, and really have nothing to do with the cross-
over, but that is just my opinion, and manufacturing concerns may
dictate a different way of doing it.

Kind regards

Peter Larsen

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