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Klark Teknik SQUARE-ONE-EQ
Graphic Equaliser SGIG/NAS

OUR PART #:  SQUARE-ONE-EQ

Our Price: $499.99
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Klark Teknik SQUARE-ONE-EQ
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Universal Power Supply
Auto voltage-sensing, operates anywhere between 100-240V ± 10%.

Fully balanced inputs & Outputs
XLR & TRS connectors, both feature extremely high CMRR.

Relay activated bypass
Continues to pass audio in the event of power failure.

Roadworthy 3U steel chassis
Designed to withstand the rigours of the road.

PROportional Q filters
The “Q” or bandwidth of the Square ONE’s filters is proportional to the gain applied, and so gives increasing focus on real problem frequencies. This also means that adjacent filters sum together with minimum phase error, providing smooth, ripple-free summation.
This filter mapping is also implemented on the World-leading Klark Teknik DN370, and is the most appropriate for live sound reinforcement.

High Pass Filters
The HPF on graphic equalisers are used to remove unwanted subsonic frequencies (traditionally about 30Hz). The HPF on the Square ONE graphic is set at 80Hz. If using your Square ONE graphic with a large speaker system, then you will almost certainly be using an active crossover, which should provide appropriate subsonic protection. In this case, leave the HPF out of circuit.

When using more compact loudspeakers, use the 80Hz. knee of the Square ONE HPF for maximising their headroom and efficiency (If using your Square ONE graphic with foldback loudspeakers which have an extended bass response, the HPF can still be used, in fact, useful results can be obtained by “bending” the knee of the HPF, by boosting the 63Hz fader on
the graphic).

Low Pass Filters
The Square ONE graphic’s LPF is fixed at 12kHz. This is optimal for stage monitoring applications, both loudspeaker and IEM systems, and will increase available headroom as well as providing HF drivers with some thermal protection against ultrasonic frequencies.

When engaged simultaneously, the Square ONE graphic’s HPF & LPF give optimal control of the operating bandwidth of most foldback (floor wedge & IEM) transducer systems.

 

The Graphic Equaliser shall provide ±12dB of boost and cut at 30 1/3 octave ISO centre frequencies from 25Hz-20kHz.

A Power On Led shall be provided.

The Graphic Equaliser shall meet or exceed the following performance specifications:

Frequency Response
+/- 0.5dB (20Hz-20kHz)

Distortion
(THD+N) <0.005% @1kHz, +4dBu

Dynamic Range
>112 dB (20Hz-20kHz unweighted)

The Graphic Equaliser shall allow have one fixed second-order high pass filter with an 80 Hz corner frequency and one fixed second-order low pass filter per channel with a 12 kHz corner frequency.

The Graphic Equaliser shall have an equalisation section by-pass and shall be fail-safe, that is the unit shall return automatically to the by-pass condition in the event of power supply interruption.

The Graphic Equaliser shall use centre-detented slide potentiometers arranged to give a graphical display of frequency plotted against level. The slide potentiometers shall have protective covers to inhibit the ingress of dirt and dust.

All audio connections shall be electronically balanced and use XLR and 1/4” TRS jack connectors.

The Graphic Equaliser shall be capable of operating from a 100-240V +/- 10% 50/60Hz a.c. power source.

The Graphic Equaliser shall be the Klark Teknik Square ONE Graphic, and no alternative specification option is available.

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