Electra DSP is an analog EQ, modeled by UBK. Electra is Kush's best-selling product. The biggest challenge was the midrange filters, they're proportional-Q (like the old API's, but tighter) so the bandwidth changes with gain. They're designed to make drums sound like they were tuned and even mic'd differently.
The EQ is designed to brighten things with a buttery smooth precision, and can be used to reduce highs and make things sound softer, less digital. Electra DSP uses more CPU than a regular EQ. When you hear it, I believe you'll understand why that is.