Klark Teknik DN360B Equalizer

KLARK DN360 Details

Dual Channel 1/3 Octave Graphic Equalizer

• Two x thirty 30mm oil damped precision faders graphicall y positioned at 1/3 octave ISO frequencies between 25Hz-20kHz.

• Proprietary circuit designs utilising “MELT” filters giving unbeatable performance.

• Comprehensive standard specifications include electronicall y balanced inputs and LED overload indicators.

• Earth lift switch enables signal and chassis grounds to be isolated eliminating ground-loop problems.

• Useful low cut 18dB/octave filters preventing subsonic components from overloading speakers or amplifiers.

• Equalisation by-pass allowing easy comparison between direct and equalised signals.

• Scale switching gives the choice of either high slider resolution (±6dB) or normal (±12dB).

• Perspex security cover available to order, for use in permanent sound installations where system calibration has taken place.


Architect's & Engineer's Specification

The equaliser shall provide 12dB* of attenuation and accentuation at 2x30 1/3 octave ISO centre frequencies from 25Hz-20kHz. *Selectable to 6dB for increased fader resolution. Each equaliser shall meet or exceed the following performance specifications:

* Distortion (THD+N) < 0.01% @ 1 kHz,+4 dBu

* Frequency response (0.5dB (20Hz-20kHz)

* Noise <-90dBu (20Hz-20kHz unweighted)

* Maximum level into 600Ohm +22dBu

Each equaliser shall allow for; subsonic frequency attenuation at 18dB/octave, equalisation section by-pass and shall be failsafe, that is the unit shall return automaticall y to the by-pass condition in the event of power supply interruption.

Each equaliser shall use centre detented slide potentiometers arranged to give a graphical display of frequency plotted against level.

A rear panel switch shall be provided to isolate the signal ground connections, quickly and safely, from the chassis ground.

All audio connections shall be via XLR style connectors and a tamperproof front panel cover shall be available to fit the unit.

The unit shall be capable of operating from a 115/230V +/- 12% 50/60Hz AC power source.

Technical Data

Input Two
Type Electronicall y balanced (pin 3 hot)
Impedance (ohms)
Balanced 20k
Unbalanced 10k

Output Two
Type Unbalanced (pin 3 hot)
Min. load impedance 600 (ohms)
Source impedance <60 (ohms)
Max. level +22dBu

Performance
Frequency response (20Hz-20kHz)
Eq out +/- 0.5dB
Eq in (flat) +/- 0.5dB
Distortion (THD+N) < 0.01% @ 1 kHz,+4 dBu
Equivalent input noise (20Hz-20kHz unweighted)
Eq in (flat) <-90dBu
Channel Seperation >75dB @ 1KHz
Overload indicator +19dBu
Gain -infinity to +6dB

Filters
Type MELT**
Centre frequencies 2x30, to ISO266:1997 25Hz to 20kHz 1/3 octave
Tolerance +/- 5%
Maximum boost/cut +/- 6/12dB
Subsonic filter 18dB/octave - 3dB @ 30Hz

Terminations
Input 3 pin XLR
Output 3 pin XLR
Power IEC

Power Requirements
Voltage 110/120/220/240V 50/60Hz
Consumption <15VA

Dimensions
Width 482mm (19 inch)
Depth 205mm (8 inch)
Height 133mm (5.25 inch)

Weight
Net 5.8kg
Shipping 7kg

Other views of KLARK DN360 (Click to enlarge):

Klark Teknik DN360B Equalizer

AUDIO TECHNICA AT3035