www.tkaudio.se
TK-lizer 2
Mastering EQ with M/S function
Thank you for buying the TK-lizer 2, manufactured and hand-assembled in Sweden and
thoroughly tested before leaving the factory.
The TK-lizer 2 is inspired of the Baxandall circuit from the 50’s. It’s a dual three-band EQ with low
and high bands switchable between shelf or peak. It has a high-pass filter with 12dB/oct slope, and
of course a level control for fine adjustments of the output level. To make the EQ even more useful it’s
also equipped with a M/S circuit. All controls are stepped for easy repeatability.
The controls:The controls:
The controls:The controls:The controls:
Low freq: 28Hz, 48Hz, 72Hz, 132Hz, 195Hz, 255Hz, switchable between shelf or peak.
Mid freq: 400Hz, 630Hz, 870Hz, 1.3kHz, 2.4kHz, 4.8kHz.
High freq: 4kHz, 7.2kHz, 12kHz, 16kHz, 20kHz, 25kHz, switchable between shelf or peak.
HPF freq: 20Hz, 25Hz, 30Hz, 35Hz, 40Hz, 45Hz, or 100Hz, 125Hz, 150Hz, 175Hz, 200Hz,
225Hz with the x5 switch activated. 12dB/octave.
Cut/boost: -4dB, -3dB, -2dB, -1dB, -0.5dB, 0dB, +0.5dB, +1dB, +2dB, +3dB, +4dB.
Level: -4dB, -3dB, -2dB, -1dB, -0.5dB, 0dB, +0.5dB, +1dB, +2dB, +3dB, +4dB.
EQ in/out.
M/S in/out.
Cue switch for separate monitoring of the mid or side signal.
M/S mode:M/S mode:
M/S mode:M/S mode:
M/S mode:
When you select M/S mode the signal is split into M=mid (L+R) and S=Side (L-R) before the EQ, after
the EQ the signal is decoded back to L and R again.
None of the center information as bass drum, bass and lead vocal is present in the S channel, only
panned signals as guitars, drums, keys etc. In M/S mode you can affect the M and S signal
separately.
By using the high pass filter in M/S mode you can affect the lower range in two ways.
1. HPF on M channel cuts the low energy in the signal. (L and R)
2. HPF on S channel, frequencies below the selected frequency will be in mono. This is used when
cutting records and also to get a more focused low range.
In M/S mode you can also use the level controls to alter the stereo images, more S channel will widen
the image and less S channel will reduce the stereo images.
To be able to hear better what you are doing in M/S mode you can use the M and S cue switch to
listening to the M channel or S channel alone. The cued signal will be feeded to both channels then.
