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TK Audio TK-lizer 500

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500 series dual mono EQ

The TK-lizer 500 features all the power of the TK Audio’s flagship TK-lizer, including the M/S functionality that has made it such a staple in studios all over the world.

The three bands have a cut/boost range of +/-8dB in 41 steps. The low and high bands can be switched between peak or shelving mode. A high pass filter with a 12dB slope is also provided, and each channel has it’s own level control with a range from infinity to +6dB.

Using the built in M/S function, you can adjust the middle and side signals separately before it is decoded back to a normal L/R signal. In M/S mode you can also adjust the stereo width using the level controls.



Low band:

Frequency: 28Hz, 48Hz, 72Hz, 132Hz, 195Hz, 255Hz

Boost/cut: +/-8dB

Peak or Shelf

Mid Band:

Frequency: 400Hz, 630Hz, 870Hz, 1.3kHz, 2.4kHz, 4.8kHz

Boost/cut: +/-8dB


High Band:

Frequency: 4kHz, 7.2kHz, 12kHz, 16kHz, 20kHz, 25kHz

Boost/cut: +/-8dB

Peak or Shelf


High Pass Filter

Frequency: 25Hz, 30Hz, 35Hz, 40Hz, 45Hz, 100Hz, 12dB / octave



Level: Infinity to +6dB (Unity gain at 12’o lock)

EQ in/out. (LED red for out, green for in)

M/S in/out

Power requirement: +190mA / -80mA (extended over two slots)

Frequency response: 20Hz to 50kHz +/-0.2dB

THD @ +4dBu less than 0.0006%

THD+N @ +26dBu is less than 0.001%

Signal to noise ratio: 95dB

Cross talk: -89dB

Input impedance: 24kohm

Output impedance: 50ohm

Max input level: +26dBu

Max output level: +27dBu


...the TK-lizer is a real joy to use. It's all about smooth, effortless control...

Sound On Sound

Read the complete review here


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