Helios Type 69 500 Series Mic Pre/EQ Trombone These sounds defined decades of

These sounds defined decades of popular music

It’s ideal for parallel processing

and optimally adjusted at the Conn-Selmer Woodwind Center located in Elkhart

a variable compressor

seeking reliable performance in a flexible

Helios Type 69 500 Series Mic Pre/EQ Trombone These sounds defined decades of*Please note This pre owned item may show signs of use. Please see the photos for details. The Helios Type 69 500 Series Mic Pre EQ brings the legendary sound of the original Helios console preamps into the modern 500 Series format. Known for its rich harmonic saturation, musical EQ curves, and vintage analog warmth, this module is a faithful recreation of the classic Helios sound heard on countless iconic recordings from the 1960s and 70s.