<h1>Manley Mastering Version Massive Passive Stereo Tube EQ</h1>
<span style="font-size: 16px; font-style: italic;">The Massive Passive is a passive design and not a "true parametric"!</span><br/><br/>This is the Mastering Version of the Massive Passive with innovative 
repeatable, mechanically detented knobs of their own design. Range is 
clamped down for focus where mastering engineers live and breathe. 
Filters go higher and lower for solving problems in the mastering stage. 
<br/><br/>A 
true parametric implies non-interacting controls. In the Massive 
Passive, the "GAIN" and "BANDWIDTH" controls DO interact (on purpose). Manley could not create a "GAIN" switch that is set up for "consistent" 1/2 dB 
steps. When you change the "BANDWIDTH" the step size must and will 
change. On the regular version, you get a full 20dB boost or cut only 
when: the bandwidth is fully clockwise (narrow) in bell mode or fully 
counter-clockwise in shelf mode. Here on the Mastering Version, this 
maximum boost or cut is 11dB. Conversely at the widest bell, the maximum
 boost or cut is 6dB and the narrowest shelf maxes out at 12 dB. A 
similar situation is also true for the bandwidth detents. So in this new
 Mastering Version, do not expect a certain dB change per step as it 
will vary according to where the bandwidth is set. But whatever the step
 sizes are, they will be repeatably 16 steps. The FREQUENCY select is 
already detented as it is and always has been a Grayhill switch. It also
 interacts in shelf mode.
<br/><br/>
<h4>Mastering Version Massive Passive Stereo Tube EQ Features</h4>
<ul>
	<li>All-Passive tone sculpting circuitry</li>
	<li>Unique Shelf curves use the "bandwidth" control</li>
	<li>Overlapping and Interleaved Frequency choices</li>
	<li>Every band switchable to shelf or bell</li>
	<li>Vacuum tube make-up gain and line drivers</li>
	<li>Parallel symmetrical topology</li>
	<li>Premium components throughout</li>
	<li>HP and LP Filters plus gain trims</li>
	<li>Metal Manley mechanically detented GAIN and BANDWIDTH control knobs</li>
</ul>