The C84 is Seventh Circle’s version of the same Graeme Cohen double-balanced preamp design used by SSL, Amek, and other manufactures.  Seventh Circle recommends this kit for experienced DIYers.

Notable Features:

• 12-position Grayhill gain switch
• Transformerless
• Direct DC-coupled signal path
• Output trim pot that can provide up to 6db of reduction
• Designed for SCA’s proprietary rack case

Price: $149
Adjusted Cost: $189 (eight channels)

A rack of eight C84s with SCA’s proprietary 3RU bundle costs $1512.  Divided by eight, this makes the adjusted cost $189.