Kits
Hairball Audio
OLA5 Opto Compressor – DIY Recording Equipment
JLM Audio Shop
Sound Skulptor - Professional audio Kits
5 DIY audio kits to improve your recording - Threecircles Recording Studio
FiveFish Audio - DIY Mic Preamp Kits, 500 Series Kits, VPR Certified | Audio, Mic, Series
DIYRE Colour
Sound Skulptor: CP4500 Stereo Bus compressor for the '500' Lunchbox - Kit, Effects, CP4500
f76 - DIY 500 series Urei 1176 inspired compressor | Recorder music, Compressor, Fast and slow
the DON classics
21 DIY Kit Sources for Pro Audio, Synth Modules & Instruments — Pro Audio Files
Sound Skulptor CP4500 Sound Example - DIY Stereo SSL-Style VCA Bus Compressor Demo - YouTube
DIY 500 Series Mic Pre Options (API 500 series Microphone Pre-amp)
Serpent Audio | High Quality Audio Compressors
21 DIY Kit Sources for Pro Audio, Synth Modules & Instruments — Pro Audio Files
Building your own affordable vintage audio gear - Optoproductions
Loaded 500 series lunchbox with DIY preamp and compressor | Reverb
the DON classics
ONE LA 500 - IGS Audio
TC-500 // Versatile Tracking Compressor for 500 Series. | GroupDIY Audio Forum
DIY JLM LA500 (LA-3A) Compressor/Limiter Clone. 500 Series. | Reverb
Is the 500 Series format for me ? | KMR Audio News
