Sound City L120 - Psionic Audio Mod by Lyle Caldwell

Here’s a super cool Sound City L120 that’s been given the royal treatment by Lyle Caldwell over at Psionic Audio. If you know his work, you know how big of a deal that is.

Lyle reworked the preamp to be much more in the Hiwatt vein - tighter, punchier, clearer, and just overall more focused. He also added a master volume on the back, which makes a huge difference in how usable the amp is. You can finally get those big, aggressive tones without needing stadium-level volume.

The end result?

• That classic, bold Sound City/Hiwatt vibe
• Tons of headroom
• Clear, fast attack
• Really responsive feel
• Better control over the volume

If you’re into big British amps with attitude, this one absolutely nails it—especially with Lyle’s touch.