Used Behringer MDX2100 analog compressor/limiter. I suppose you could call this a vintage piece in a way. Released in the late 1980s? It was a steal, and this first-generation Behringer was said to improve the sound. And what do you know, it uses Texas Instruments op-amps!! TL074. They were using proper op-amps back then! The compressor settings and limiter are very versatile. The expander gate also quietly does its job well. You can also see on the circuit board that they considered using a transformer. For some reason, later models feel quite simplified, and there were many issues. After the initial model took the world by storm, there was a factory relocation? Acquisition? I worry about the developers' intentions... The switches and volume controls have been maintained, so you should be able to use it with confidence for a while. However, the aging of the electronic components is unavoidable... Thank you for your understanding.