INTRODUCTION

Designed to meet and exceed the needs of the recording, broadcast, installation and live sound industries, the Klark Teknik DN3600 Programmable Graphic Equaliser is an extremely high quality, digitally controlled, two-channel, third-octave equaliser that combines state-of-the-art audio performance with unprecedented ease of use. The two channels may either be used independently or linked for stereo use. To further extend the flexibility of the equaliser, the unit also incorporates variable frequency low and high-pass filters, two notch filters with variable frequency and depth and overall gain adjustment.

Featuring a very large backlit LCD display window, the DN3600 may store up to 66 equaliser programs and the inclusion of a Pro MIDI interface enables several other DN3600s or DN3601 slave units (64 maximum) to be controlled from a single DN3600. The slave units are electrically identical to the DN3600 but have limited control and display facilities. A 16-pin connector is provided for use in conjunction with the DN60/DN6000 Real Time Spectrum Analyser enabling room analysis and equalisation to be accomplished automatically.

The proprietary analogue filters are based around the Klark Teknik “MELT” hybrid filter circuits which offer far greater headroom and dynamic range than is possible using standard 20-bit linear, digital systems. Benefiting from revised circuitry, these filters are exceptionally reliable and offer greater stability than discrete designs. They are also relatively immune to electromagnetic interference, unlike coil-based filters. Separate supply rails are used for the digital and analogue circuitry which, in combination with rigorous internal screening, ensures the cleanest possible audio signal path.

In order to provide maximum operational flexibility, the system includes a switchable Q mode. The Low Q setting (Q:360) provides an accurate emulation of the industry-standard DN360 equaliser. In High Q mode (Q:27), the performance emulates the DN27.

To maintain the optimum signal to noise ratio and headroom at all equaliser settings, the gain control acts on the equaliser sections themselves rather than being a simple pre or post- equalisation gain stage. Additionally, an Auto gain mode is included in the system which automatically scales the gain of the individual equaliser bands as cut or boost is applied to reduce the risk of accidental clipping and to maintain a safe working headroom.

Both the input and output circuitry is electronically balanced with a nominal operating level of +4dBu. The output circuitry is based on the Midas XL3 output stage, giving exceptionally high drive capability. A transformer option is available for both inputs and outputs.

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Telex DN3600C service manual Introduction
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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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