AUTO EQUALISATION - THE DN3600/DN60 CONNECTION

The DN3600 can be interfaced with the Klark Teknik model DN60 Real Time Spectrum Analyser. The combination can then be used to perform an Automatic Equalisation function, to compensate for the sound system frequency response. To do this, proceed as follows:

1.Make certain that both units are switched OFF. Connect the DN60 to the DN3600. The interconnection is made using the pin-to-pin 16-way cable supplied with the DN3600. The cable should be used to connect the DN60 "PLOTTER INTERFACE" to the DN3600 "DN60 INTERFACE". Switch ON the DN60 first, let initialise, then switch ON the DN3600.

2.Feed the signal from the DN60 pink noise source through a level control device, such as a mixing console, into the DN3600 input - whichever channel is to be equalised. Keep the pink noise level down at this point. Make certain that any other equalisation in the pink noise signal path, such as on a mixing console input channel, is set to a flat position.

3.Set the DN60 microphone at the desired listening/measurement position in the venue.

4.Slowly bring up the level of the pink noise through the sound system to an average listening level.

5.Set the DN60 controls to Avg., Cont., Resp 3., 1 dB resolution, mic input. Adjust the DN60 Reference Level until the full frequency response display is seen.

5.Switch the More EQ section OUT (More EQ, In/Out, Exit if required).

6.Enter the DN3600 Auto/Q menu (Utilities, Auto/Q). Repeatedly press the Auto EQ button allowing sufficient time between presses for the DN60 display to settle. Continue until a flat response is obtained on the DN60 display. Six to eight iterations are usually enough. It may be necessary to adjust the DN60 Reference Level between iterations.

What happens is this. On each iteration the DN3600 obtains the measured room response from the DN60, calculates the room response correction, limits it to +/-4 dB and adds this to the current Graphic settings. With each iteration the measured response gets closer and closer to flat until finally all the DN3600 is doing is to correct minor random variations.

Note. The DN3600 should not be in bypass mode. If it is the room correction curve will still be added to the DN3600 settings but the measured response will not be affected and the Auto EQ function will not perform as specified.

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Telex DN3600C service manual Auto Equalisation the DN3600/DN60 Connection
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DN3600C specifications

The Telex DN3600C is a sophisticated digital audio processor designed for both professional sound reinforcement and installations requiring high-quality audio processing. As a product of Telex, a brand with a long-standing reputation in the audio industry, the DN3600C is engineered to meet the demanding needs of sound engineers and audio professionals.

One of the standout features of the DN3600C is its dual-channel equalization system. It offers a complete 31-band graphic equalizer across each channel, giving users precise control over audio frequencies. This allows for tailoring the sound to specific environments or preferences, enhancing clarity and overall sound quality. The equalizer is complemented by high-quality analog-to-digital converters, ensuring that the signal remains pristine throughout the processing chain.

The DN3600C also boasts an intuitive user interface, with a bright LCD display and easy-to-navigate controls that make it accessible even for those new to audio processing. Users can quickly adjust settings without needing extensive training, streamlining the workflow during live performances or installations.

Moreover, the DN3600C utilizes advanced digital signal processing (DSP) technologies that enable highly effective feedback suppression and dynamic range control. This not only protects the system from damaging feedback loops but also enhances the overall listening experience. Additionally, its built-in limiter helps prevent distortion by ensuring signals remain within an optimal range.

Connectivity is another strong suit of the DN3600C. It features multiple input and output options, including balanced XLR connectors, enabling seamless integration with various audio systems and equipment. This flexibility makes it suitable for a range of applications, from live concerts to theater productions and corporate events.

The DN3600C is also designed with ruggedness and reliability in mind, making it capable of withstanding the rigors of demanding environments. Whether in a touring situation or a fixed installation, users can depend on the DN3600C to deliver consistent performance.

In summary, the Telex DN3600C is a powerful and versatile audio processor, equipped with a dual-channel equalizer, advanced DSP technologies, and a user-friendly interface. Its robust construction and multiple connectivity options further enhance its appeal, making it a valuable tool for any audio professional looking to elevate their sound management capabilities.
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