Sold as a set. In perfect working condition. Some light cosmetic wear on the painting (it's very thin) with a scratch on one of the units - see photos. The units have been used in a professional recording studio and always do their job fast and easy, with the option to crank it up and see what happens, then to just roll down the mix knob a bit and done.

From the website:

The Seven X Five Hundred is a one channel compressor/limiter. It’s a FET (field effect transistor) design that incorporate some new and exclusive features such as ”High Pass Sidechain Filter”, ”Mix Knob” mix between dry and wet signal (parallel compression).
The 7X-500 is our take on the classic ”1176 Sound”. It can be smooth or it can be a rock’n'roll monster when using ratio 100:1 (all in).

• FET Style Compressor
• Variable Mix Control For Precise Parallel Compression
• 3 Step Switched Attack Times
• 3 Step Switched Release Times
• 3 Step Switched High Pass Sidechain Filter. Off, 100Hz, 300Hz
• 3 Step Swithched Ratio 4:1, 12:1, 100:1 (all in)
• True Hardware Bypass
• Transformers Balanced Ouput
• 20-LED Gain Reduction Meter