Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

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

hot amp switch box

Posted by vinnie2 on June 6, 2017 at 15:18:52:
Been surfing the net with no luck trying to find plans for a diy switching box that would allow me to have two amps fired up and switch between them to one set of speakers. I imagine that the one that isn't connected to the speakers would have to be connected to a dummy load and that "break before make" switches would have to be used. So far I have not found anything and am hoping some here may know of something. I want to use it to A/B two amps.
The other thought I had was to put resistor loads across each set of speaker terminals on each amp so that they would always have a load and then I could just use a simple selector switch. The thing I don't know is how that would affect the sound. How little resistance could I get away with and still not hurt the amp? Would even 2 ohms change the sound of the speaker?