- 500 series - SSL 4000 E Series circuit - "Black-242" and "Brown-02" twin EQ design - Versatile 4 Band Channel EQ - Bell curve option for HF and LF - Fully parametric LMF and HMF with Q - Is based on the classic 611E Console Channel Strip - Construction: API Series 500 format - Requires a 500 slot EUR 695.00 - See more - Buy online