Instrument Familiarisation

Front panel functions

DISPLAY SCREEN: This is a large, backlit "Supertwist"-type LCD which shows white/green legend on a blue background. Menu options are listed down the left hand end. Various status information is shown along the top edge. In normal operating mode, the largest part of the screen displays the "Virtual" graphic equaliser faders for one channel. LCD contrast is adjusted via a menu option. See the Adj. LCD section for more details. In addition the LCD backlight features a bright up feature which increases the LCD backlight brightness when the controls are operated. The bright up period can be set under software control via the Adj. LCD menu from 2 seconds to 60 seconds.

FREQUENCY BUTTONS: These 30 dedicated keys, each labelled with a separate ISO centre frequency, are used to select graphic frequency bands and to set low pass, high-pass and notch filter positions. A number of adjacent bands may be selected by pressing two keys either at once or in quick succession. The selected ‘fader’ or 'faders' in the display window may be adjusted by means of the LEVEL control. An alternative method of frequency selection is to use the FREQ rotary control.

FREQ: This rotary control may be used to select any of the equaliser bands for adjustment as an alternative to using the Frequency buttons. Also, a number of adjacent faders may be selected by holding a single button until it flashes and then using the FREQ rotary control. The FREQ rotary control may also be used to set the frequency of Notch filters and of the High pass filter.

LEVEL: This rotary control is used to adjust the level of any selected faders - including the Gain fader. It may also be used to set the attenuation of the Notch filters and the frequency of the Low pass filter.

BUTTONS 1-4: These “soft keys” are used to select and operate the various functions of the equaliser. The functions immediately available depend on the current operating mode of the unit. The current function attached to each key is shown on the LCD display beside it.

CURVE/FADER: This button is used to switch between the virtual fader display and a composite frequency response curve, calculated from the positions and shapes of all Graphic, High pass, Low pass and Notch filters and gain control. The curve changes in real time with any adjustments made.

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Telex DN3600C service manual
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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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