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Instructions Adcom, Modèle GTP-600

Fabricant : Adcom
Taille : 1.16 mb
Nom Fichier : gTP-600-ug.pdf
Langue d'enseignement: en
Photos et spécifications   Adcom  GTP-600
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Facilité d'utilisation


Sometimes confused with the various quadraphonic technologies briefly popular two decades ago, time delay is a much more defined and exact process. Briefly stated, time delay takes information from the rear (or surround) output of the decoder, “stores” it for a brief period of time (usually less than one tenth of a second), and then sends it to the rear speakers. While a useful technique to enhance apparent spaciousness and ambience, time delay also serves a specific purpose in Cinema and Dolby Surround playback. Here, proper time delay prevents us from hearing front channel information, particularly dialog, from the rear speakers. Based on a psychoacoustic effect called “masking,'' this technique preserves the proper directional clues intended by the source’s producer. For this reason, both Cinema and Dolby Pro Logic modes intentionally limit rear channel time delay to very small amounts. If you delay rear channel information for a longer period, you lose the "masking” effect and become aware of a growing discontinuity between front and rear outputs. Eventually, you’ll perceive the rear channel output as a discrete echo rather as an integral part of a coherent soundfield. Of course, this is exactly what happens in a large environment like a stadium. That's why ADCOM has included longer delay times in the GTP-600: the additional aural flexibility makes reproduction of some audio/video events more realistic. Somewhere in the middle of this range of effects, time delay has other interesting and useful applications. For example, longer delay times often give the impression that we are in a large room — the longer the delay, the larger the apparent space is. If we’re not particularly concerned with the “masking effect," we can experiment. 15 Telephone inquiries are welcomed from Monday through Friday between 9 AM and 4 PM, Eastern Time. Please call (732)683-2356 We'll also be happy to answer FAX inquiries sent to ((732)683-9792 . Please include your phone and FAX number so we can respond. When inquiring about your unit, please include the serial number, the name of the dealer from whom you purchased the unit and the date or purchase. If we ask you to return the unit to us for service, we will issue a specific Return Authorization number for your use. UNDER NO CIRCUMSTANCES SHOULD THE UNIT BE SHIPPED TO US WITHOUT PROPER AUTHORIZATION OR PACKED IN ANYTHING OTHER THAN ITS ORIGINAL PACKING. If the original packing has been lost, discarded or damaged, we will be happy to supply a replacement at a nominal charge. Please mention your need when you call or write. Always ship PREPAID via UPS (United Parcel Sen/ice) or other appropriate carrier. FREIGHT COLLECT SHIPMENTS WILL BE REFUSED. DO NOT SHIP VIA PARCEL POST as the packaging may not withstand handling by our Postal Service. 17 GTP-600 SPECIFICATIONS Preamplifier Section Output Impedance Main Outputs................................................................................................................................................................475i2 Tape Outputs................................................................................................................................................................500fi Output Level (Rated)............................................................................................................................................................2.0V Input Impedance..................................................................................................................................................................25kQ Frequency Response 20Hz to 20kHz.....................................................................................................................................................+0, -0.5dB THD+N @ Rated Output 20Hz to 20kHz.........................................................................................................................................■.............<0.005% IM Distortion (CCIF from 4kHz to 20kHz)...................................................................................................................<0.005% Signal to Noise Ratio (Ref. to 2 volt) “A” Weighted............................................................................................................................................................>100dB Surround Modes Left, Right, and Center Channels Line Outputs Frequency Response (All Surround Modes, Center Channel in Wide Mode) 20Hz to 20kHz.....................................................................................................................................................+0, -0.5dB THD+N @ Rated Output (5 Channel Mode) 20Hz to 20kHz........................................................................................................................................................<0.005% THD+N @ Rated Output (Dolby Pro Logic Mode) 100Hz to 20kHz.................................


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