Sonic Imagery Labs 252AP Discrete OpAmp API2520 drop-in upgrade replacement

Sonic Imagery Labs 252AP Discrete OpAmp Vintage API gear upgrade replacement

Sonic Imagery Labs 990RETRO Discrete OpAmp 990C+ audio performance upgrade

Sonic Imagery Labs 990Enh-Ticha Discrete OpAmp 990 audio performance upgrade

Sonic Imagery Labs 995FET-Ticha Discrete OpAmp High performance audio upgrade

Sonic Imagery Labs 995FET-Ticha Discrete OpAmp high performance audio upgrade

Hand Crafted Labs Varis - Vari-Mu (Tube/Valve) Mastering Compressor

Chameleon Labs 7602 MKII Neve Carnhill Transformers (Preamp, Line in, Output)