I think the gold-lettered Joemeek is rare. I've heard it's an early model, supervised by Neve. The power supply was made and given to me separately. This unit's output is small in my setup, even with the Unity setting at around 2 o'clock on the knob, so I haven't used it in recent years and am putting it up for sale. I think it's a very good unit for those seeking a sound with a strong presence. The following is text I found on the web: This is a gold-letter version, only engraved on the early lots supervised by Rupert Neve. Known as the GOLD LETTER Version overseas, it rarely appears on the used market and is traded at premium prices. The GOLD LETTER version is a model supervised by Rupert Neve only in the early lots, so the sound quality of the mic pre is evaluated as being closer to the vintage Neve sound compared to the normal (black letter) version. The value of this mic pre section is extremely high, and compared to the normal ones often seen at auctions, it has a thicker mid-low range, and when used with the Enhance, it adds a seductive gloss to the high frequencies, and it can also produce a unique, clinging sound with the optical comp, and the saturation also increases, so you can create a very diverse range of tones with just one unit. Pro Channel VC3 with 6 control knobs, green and black design. - Model: Pro Channel VC3 - Color: Green/Black - Control Knobs: 6 knobs - Power Adapter: 12V 3A Thank you for viewing.