Please or Register to create posts and topics.

HHB Radius 20 Tube Parametric EQ

Want the warm sound of tubes in the rack? The HHB Radius 20 is a 4 band 2 channel tube Parametric EQ that has a really nice sound. Many like myself convert it to a 8 band EQ by simply running channel one into channel two. I've been running the Behringer Deq 2496 as a EQ for many years until switching over to this unit and to my ears the Radius 20 has a much warmer less digital sound you would expect with a tube EQ.

This unit has been modified by replacing the OP amps to higher quality TLE2074s and OPA604s. The 12ax7 tubes were replaced with the RCA 5751 Command tubes new old stock from 1962 for a warmer sound.

Uploaded files:
  • radious-20.jpg
KB6GFD-the basicdennis has reacted to this post.
KB6GFD-the basicdennis
Quote from k6fej on October 30, 2022, 10:28 am

Warm sound of tubes...

now with more photos

 

Uploaded files:
  • hhb.jpg
k6fej and KB6GFD-the basicdennis have reacted to this post.
k6fejKB6GFD-the basicdennis
"I drank what?!?" - Socrates