The Manley Massive Passive Mastering Version equalizer features a simple, passive design - not a standard parametric design - for more natural, organic shaping. It also offers mechanically detented knobs for both Gain and Bandwidth controls, so you can easily repeat your settings. On the Massive Passive Mastering Version, both the Gain and Bandwidth controls intentionally interact, and the bands interact, as well - this creates an incredible-sounding result without sounding "colored" or "processed." Also, both higher and lower than the normal version, the Manley Massive Passive Mastering Version's filters are tailored to mastering purposes.

Key features:

• All-Passive tone sculpting circuitry 
• Unique Shelf curves use the "bandwidth" control 
• Overlapping & Interleaved Frequency choices 
• Every band switchable to shelf or bell 
• Vacuum tube make-up gain & line drivers 
• Parallel symmetrical topology 
• Premium components throughout 
• HP & LP Filters plus gain trims 
• Metal Manley mechanically detented GAIN & BANDWIDTH control knobs