- Neve 1073
- Neve 1081
- SSL 4000 E/G Series
- Trident A-Range
- Helios Type 69
- Focusrite ISA 110
- Audient ASP8024
- Calrec PQ1161
- API 512c
- API 312
- Universal Audio 610 (A y B)
- GML 8300
- Grace Design m101
- Millennia HV-3D
- Boulder / Jensen Twin Servo
- John Hardy M-1
- Telefunken V72
- Telefunken V76
- EMI REDD.47
- Siemens V78
- TAB V72s
- Chandler Limited TG2
- Great River MP-2NV
- Avedis MA-5
- Burl B1
- Aurora Audio GTQ2
- D.W. Fearn VT-1
- Manley Voxbox
- Thermionic Culture Earlybird
- Gyraf Audio G9
- RCA BA-31
- Chandler Limited Germanium Pre
- Spectra Sonics 110
- Langevin AM16
- Ampex 351
- Altec 1567A
- Groove Tubes ViPre
- Old World Audio Abbey
- Sontec MPC-1
- Electrodyne 501
- Radial PowerPre
- Warm Audio WA12
- Heritage Audio 73JR
- Shadow Hills Mono GAMA
- Cranborne Audio Camden 500
- AEA RPQ2
- Gordon Model 5
- Sonic Farm Silk Road
- Pueblo Audio JR Series
- Western Electric 121