Tubes Asylum

Questions about tubes and gear that glows. FAQ

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: Microphony versus cable length

Posted by Herbie on October 2, 2002 at 00:51:28:
Microphony and cable length can both degrade sound quality. Which one degrades the sound more depends on many factors, such as the type of cable and insulation. Microphony is caused by vibrations, resulting in grungy distortions. Long cable length introduces RF, which causes humming and buzzing; most insulations that insulate from RF cause some frequency response loss in the wire. Although an extra two meters isn't a huge amount of extra distance, you can handle the microphony problem without putting the amp in another room.
I believe the best solution is to eliminate microphony as a problem by placing good, microphonic-absorbing footers under your amp and microphonic damping instruments on your tubes. Nowadays there are excellent tube dampers that reduce microphonic distortion without altering frequency response or altering the natural qualities of your tubes.