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DNA-SC48 数据表(PDF) 2 Page - Danley Sound Labs. All Rights Reserved. |
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DNA-SC48 数据表(HTML) 2 Page - Danley Sound Labs. All Rights Reserved. |
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2 / 3 page  Crossover shapes As well as the standard Butterworth, Bessel, Linkwitz-Riley and Hardman filters, Danley offers a unique “Linear Impulse Response” (LIR) crossover filter which gives a Linear Phase crossover that has a constant delay regardless of frequency (unlike other types of crossover which delay different frequencies to a different extent, thus smearing the arrival time). The LIR crossover can thus be described as having a flat Group Delay response, and thus entirely free of Group Delay Distortion, this is exactly the same as can be provided by common FIR filtering but without the complications and disadvantages inherent with the FIR technique. The shape of the LIR crossover filter is similar to a 4th order Linkwitz-Riley filter, and maintains zero phase difference between the adjacent bands across the crossover region to keep the polar response rock steady. As we also employ phase matching on our Bessel filters, adjacent bands are in-phase throughout the crossover region. High-Pass Filtering To avoid unnecessary inter-band phase shifts common in many competing products, we provide high-pass filtering on the inputs rather than forcing you to apply ‘system’ high-pass filtering on the low crossover bands. Our white-paper “High-Pass Filtering in Two-Way Systems” explains why this is important. Presets The DNA SC48 uses Drive Module presets, which are defined as a number of outputs driven from one DSP input. This system allows for better flexibility and greater functionality when loading and storing presets. Drive modules allow for a less processor centric and more speaker orientated system design. A drive module is the processing provided by one Input DSP, and a number of outputs, which are associated with one-another by means of routing. The DNA allows 50 drive module presets to be stored. Presets are stored permanently inside the DNA and so will always be available even if the DNA is not being used with PodWare. PodWare Application Thanks to the power of Obcom, PodWare becomes much more than just a remote control panel for a DNA. PodWare and any connected device(s) become intimately intertwined, faithfully duplicating any control adjustments whether they are made in PodWare or on the front panel of the device itself. Adjust a gain control on the device, and watch the gain value in PodWare smoothly slide in sympathy. They simply cannot get out of ‘sync’. You can also update the firmware in the unit via PodWare – even via the network. Each input and each output can be named in PodWare. These names not only appear for the User on the PodWare control panels, but also show briefly when scrolling through the inputs and outputs on the device itself. Panel Views Front view Rear view NETWORKED AUDIO INTERFACE MAINS 100-230V 50-60Hz 30W THIS UNIT MUST BE EARTHED ETHER NET AUX PORT 7 6 OUTPUTS 5 4 3 2 1 INPUTS 4 AES3 3&4 3 2 AES3 1&2 1 Refresher Flyer Rear -02 AES3 1&2 AES3 3&4 AES3 5&6 AES3 7&8 X Y |
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