Speaker Asylum

General speaker questions for audio and home theater.

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: yep, the "Smaller Advent" are what I have

Posted by JonM on May 23, 2021 at 05:19:06:
The smaller Advents have that mass of wood pulp fiber adhered to the center of the cone (for added mass, to lower the driver's resonant frequency). That makes refoaming a bit trickier, because the mass can make the cone lean one way or another while the glue is setting, and you might get some voice coil rubbing.

I have seen some folks cut that pulp mass off, shim the coil, glue on the new foam, and reglue the pulp mass. Even if you're a surgeon, cutting and regluing that pulp mass will leave a mess. You can avoid that if you're really careful. When you glue on the new surround, keep the driver on its back, pointing straight up and level, and before the glue dries, gently press the cone vertically to make sure the voice coil isn't rubbing.

Good luck. I have a pair of smaller Advents (bought new, refoamed once and caps replaced with mylar films) and I think they're great.