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Zahl EQ1

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Stereo Equalizer in the API 500 format


Taken from the state-of-the-art Zahl AM1 mixing console, this is a very powerful and probably the most versatile eq in the API 500 series format.

It can be used for broad strokes or it can be very surgical, yet it is always highly musical.

It is loaded with features but still manages to be intuitive and user friendly due to its self explaining layout.

You will only have one difficulty: make it sound bad!




EQ GAIN RANGE - selectable +/-5 dB or +/-15 dB


HI - parametric

frequency 2 kHz to 20 kHz

characteristic switchable bell or shelf with very soft slope – ‘airy‘ character

individual bypass switch


HI MID - fully parametric

frequency 600 Hz to 6 kHz switchable to 1.8 kHz to 18 kHz (x3)

adjustable Q-factor

individual bypass switch


LO MID - fully parametric

frequency 200 Hz to 2 kHz switchable to 40 Hz to 400 Hz (/5)

adjustable Q-factor

individual bypass switch


LO - parametric

frequency 30 Hz to 300 Hz

characteristic switchable bell or shelf with slight sub frequency roll-off at high gain shelf

individual bypass switch



frequency adjustable 25 Hz to 250 Hz

individual ON/OFF switch



assignable gain stage INPUT or OUTPUT

gain range selectable +/-5 dB or +/-15 dB



switchable overall hard bypass, disconnecting I/Os



at input



driven by 10 checkpoints throughout signal chain

Technology: electronically balanced, transformer-like behaviour (either hot or cold may be connected to ground)

Max. level: > +26 dBu

Reference level: +6 dBu/+4 dBu

Input impedance: > 30 kOhm

Output Impedance: 50 ohms

DC Voltage: +/- 15...17V from stablilized noisefree DC Supply (LDOs provided inside unit)

DC Current: < 250mA (i.e. 125mA per slot) - equal current pos/neg rail

Unit Dimensions: 76,2x133,4x169mm 1,2kg

Shipping Dimensions: 305x220x150mm 1,8kg (approx.)



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