AudioAsylum Trader
Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

For Sale Ads

FAQ / News / Events


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

Login to access features only available to registered Asylum Inmates.
    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.


The Name that you picked or by default, your email.
Forgot Moniker?


Examples "Rapper", "Bob W", "joe@aol.com".


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

Your Email:  

Message Comments


Original Message

RE: monoblock input resistor value

Posted by Lew on January 16, 2021 at 12:34:20:

Just based on the model designations you provided, it seems that the use of the potentiometer at the input came later than the use of the single value resistance (50E vs 50D). Have you used the 50E amplifier in your home system, and when you did, what setting on the pot sounded best? I ask because for some preamplifiers, especially for a tube based preamplifier, a fixed input impedance of 10K ohms might be problematic. On the other hand, getting rid of the pot per se may improve SQ.