High-Power Professional Amplifier The D-3000 is a high power professional amplifier specially designed for the sound re-enforcement market also referred to as SR, which incorporates a DSP, Digital Signal Processor and Audinates’s Dante™ digital audio network. Dante delivers low latency, robust synchronisation, I/O scalability, and installation simplicity via standard IT technology. The D-3000 will deliver up to 3000 watts of power per channel down to 2 ohm loads. Housed in two RU compact frameworks, the D-3000 Class D amplifier offers high power with reduced size and weight. The combination Class D topology amplification circuitry combined with SMPS (Switch Mode Power Supplies) creates a high efficiency amplifier that offers reduced power consumption and low heat dissipation. The D-3000 is ideal for applications where high power and efficiency is required. This may include House of warship, arenas, stadiums, concert venues, touring or any other large-scale facilities. DANTE Digital Network Audio Technology Audinate’s Dante™ is a modern high performance digital media transport system that runs over standard IP networks. Dante exceeds all other systems in speed, channel count, ease of use, flexibility, and scalability. Dante offers a no hassle, self-configuring, true plug, and play digital audio networking experience. It is the solution for transporting low latency uncompressed audio over standard IP ethernet networks with sample accurate synchronisation, automatic device and channel discovery, and easy to use signal routing. Dante™ is built on IT standards, and is a complete media networking solution. Dante delivers a low-latency, tightly synchronised, sample-accurate playback, which also simplifies installation and configuration of A/V networks. It is ideal for applications where high power and large quantity of long-line speaker installation is required. As a result, Dante has become the leading solution for a variety of professional applications as it demystifies audio networking. DANTE Audio Network Audinate’s Dante is an uncompressed, multi-channel digital media networking technology, with near-zero latency(maximum delay time: under 1ms) and synchronisation. Dante is currently the most advanced and most widely used network audio technology. It transmits 48kHz, 24bit high quality digital audio in real time through standard TCP/IP network protocol. Brand Interoperability Based on industry standards, Audinate’s Dante is an uncompressed, multi-channel digital media networking technology, with near-zero latency and synchronisation. Dante is the preferred audio networking solution that has been adopted by more pro-audio AV manufacturers than any other networking technology. Interoperability is a reality today, therefore, the Inter-M D-3000 series is compatible with hundreds of other Dante-enabled products available from the world’s leading manufacturers. This enables consumers to mix devices from multiple manufacturers. DSP Digital Signal Processing The D-3000 series comes with a real-time digital signal processor and signal processing functions that include EQ, dynamics, and delay. Most importantly, there is no need for separate external processors. Some of the available DSP features include: 5 band Parametric, variable Q Equalisers (P-EQ), High Pass and Low Pass Filters, Limiter and Delay, and Input and Gain Control. DSP and channel mapping functions for D-3000 series amplifier are configurable by an HTML 5 web-browser interface. Shelving EQ Shelving filters are used to reduce or increase signals above or below a set frequency. Shelving filters are used as common tone controls (bass and treble) found in most audio equipment. These implement a first order response and provide an adjustable boost or cut to frequencies above or lower than a certain point. P-EQ (PARAMETRIC EQ) Parametric equalisers are multi-band variable equalisers, which allow the user to control the three primary parameters: amplitude (GAIN), centre frequency (Freq) and bandwidth (Q). The amplitude of each band can be controlled, the centre frequency can be shifted, and bandwidth (“Q”) can be widened or narrowed. Parametric equalisers are capable of making much more precise adjustments to sound than other equalisers commonly used. HPF (High Pass Filter) A high-pass filter is a filter that passes higher frequencies well but attenuates lower frequency components. The adjustable range is from 20Hz ~ 20kHz, with a fixed slope of -18db/octave. High pass filters are useful for removing unwanted signal below a set frequency. LPF (Low Pass Filter) A low-pass filter passes low-frequency components of signals while attenuating higher frequencies. The adjustable range is from 20Hz ~ 20kHz, with a fixed slope of -18db/octave. Low pass filters are useful for removing unwanted signal above a set frequency. Limiter A limiter allows signals below a specified input signal level (Threshold) to pass unaffected while attenuating the peaks of stronger signals that exceed this threshold. The. Limiting is a form of dynamic range compression. Delay The delay circuit digitally records an input signal to an audio storage medium, and then plays it back after a period. This is used to synchronise in time multiple speakers in a room with respect to a listening point such as to minimise multipath reverberant sound. This technique distribute the sound evenly and ensure high quality sound for the entire audience giving the listener the impression of a single sound source. The delay in the D-3000 can compensate for distances of up to 17.0meters or 50ms. LEVEL The amplifier input level or volume control can is remotely controlled or pre-set via the web-browser control panel. This feature can be bypassed for full volume or muted. Input Mapping The mapping control allows the matrixing of 8 digital inputs with the 2 local analogue inputs Web-Browser Control Panel The Web-Browser control panel is a web-based interface (control panel) that is used to interact directly with the Amplifier for making configuration changes and for requesting information from the player. The Web-Browser control panel runs directly on port 80 of the amplifiers internal web server and can be accessed from any browser including web-enabled devices like tablets and smart phones. Opening a browser and typing the following address will access the Web-Browser control panel interface: http://device_ip_address, where the default IP address is http://192.168.1.xx The web-browser interface will allow you to setup and configure the Network Settings, Security, Date/Time, 31 band variable Q Graphic Equaliser, High Pass and Low Pass Filters, Limiter and Delay, Input and Gain Control, Firmware Update, Maintenance, and Log Files. Through the web-browser interface, consumers can easily select the desired channel to broadcast. CLASS D Class D audio amplifiers offer greater power efficiency over traditional amplifiers. Among their advantages includes their reduced physical size and lower heat dissipation. They offer less than 1% THD (Total Harmonic Distortion), with an increased signal to noise ratio to 90db, and a widened frequency response from 30Hz ~ 20 KHz. Class D audio amplifiers offer greater than 90% power efficiency over traditional amplifiers and SMPS provides high efficiency and low weight. The DPA series is fully equipped with a protection circuit against short circuit, overload, power, and DC output. Same Powerful Output from a More Compact Amplifier The superior efficiency of a Class-D amplifier means higher power output that is also more compact than an analog amplifier. Only 2 rack units in size, the DPA Class D audio amplifier with ECO Digital design offers greater than 90% power efficiency and lower heat dissipation over traditional analog amplifiers with lower efficiency and greater noise. Efficiently Compact and Lots of Power Class-D amplifiers overcome the inefficiencies of traditional Class-A or AB amplifiers. The Inter-M D-3000 Class-D amplifier transform very little power into heat, therefore, a higher percentage of the power supply is transformed into the load. This results in a very compact amplifier, which needs less input power to produce very high output power. Why Use Class D-Amplifiers? Class-D amplifiers deliver more output watts to input AC power than conventional analogue amplifiers. This is because the Class-D amplifier’s PWM (Pulse Width Modulator) modulates the original audio input signal with a triangulated signal wave, which has a much higher fixed frequency. The result is a digital signal that contains both the input signal and a band of frequency components around the modulation frequency. A LPF (Low Pass Filter) then filters out the high frequency pulses, and the resulting amplified output signal is then sent to the speakers. SMPS Provides High Efficiency and Low Weight Among SMPS advantages is their reduced physical size and lower heat dissipation. SMPS offer power efficiency and reduced power consumption over traditional amplifiers. High Performance The D-3000 series amplifier offers superior incomparable performance and hi-definition sound with better S/N and THD than any other Class D power amplifier on the market. THD: Total Harmonic Distortion The lower THD means that the equipment produces a more accurate reproduction by reducing harmonics added by electronics and audio media. S/N: Signal to Noise Ratio The S/N ratio is a measurement that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power. The higher the ratio indicates more signal than noise. LED Display Amplifier status monitoring is easy with a LED display (Power on, Standby, Signal/-30dB, -10dB, Clip, fault, AC, DC).