Planar Speaker Asylum

Welcome! Need support, you got it. Or share your ideas and experiences.

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.
You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login

By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username: The Name that you picked or by default, your email. Forgot Moniker?	Examples "Rapper", "Bob W", "joe@aol.com".
Password:	Forgot Password?
	Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:
Your Email:
Subject:

Message Comments

Original Message

RE: Tympani IVa active crossover.

Posted by Roger Gustavsson on January 31, 2021 at 00:13:55:
Well, I have two kits of that First Watt/Pass 6-24 crossover, still unused. What I do not like is the electrolytic capacitors on in- and output, at least not on the high frequency section. I recommend replacing the trimpots with resistors when the final crossover points are set. Some audiodesigners like to keep the series resistance below 15 kOhm, to achieve lower noise. That will force you to increase the values of the capacitors in some cases. As this a fully adjustable crossover, there is room for experimentation.
There was an interesting story on the BG RD75 many years ago:
http://web.archive.org/web/20080709041133/http://ldsg.snippets.org/ALSR/dbsindex.html