OLA5 Opto Compressor (Discontinued) colour The OLA5 uses a modern

The OLA5 uses a modern bar meter driver that shows peak reduction

So we have included it as an “under the hood” mod in our documentation for the kit

August 2025:

8 kHz high frequency shelving boost

we noticed two distinct approaches

OLA5 Opto Compressor (Discontinued) colour The OLA5 uses a modernClassic opto leveling with new features and your choice of Modern or Vintage signal path. Classic Opto Leveling, Upgraded Signal Path. The Urei LA 4 leveling amplifier has always lived in the shadows of it's older siblings, the LA 2A and LA 3A. Despite possessing the distinctive, musical compression character its family is known for, the LA 4 was compromised by the muddy sound of early chip technology. With the OLA5, we've painstakingly recreated the