Instruction/ maintenance manual of the product GRS44 Knoll
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G RS 44 8 Channel E co- Sy stem™ Controller-Amplifier Installation Instructions v1.1.
2 Important Safety Instructions: 1) Read these instructions. 2) Keep these instructions. 3) Read all warnings. 4) Follow all instru ctions. 5) Do not use this apparatus near water. 6) Clean only with dry cloth. 7) Do not block any ventilation openings.
3 FCC Warning Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC R ules. These limits are designed to provide reasonable protection agai ns t harmful interference in a residential installation.
4 Introduc tion: Thank you for your purchase of a Kno l l G RS44 8 channe l controller amplifier and congratulations o n your choice. The GR S44 features four deluxe digital volume controlled stereo amplifiers with indivi dua l four source selection. This is Knoll's fourth generat ion of mu l ti-ch annel, h igh- quality power amplifiers.
5 Unpacking: The carton and packin g materials used i n shipping your new amplifier were specially designed to protect it fro m the shock and vibration of shipp i ng. We suggest that you save the carton and pack i ng materials to use if you move, or i f the unit ever needs to be shipped back to u s for any reason.
6 Speaker connections The GRS44 has four stereo 30 watts per channel amplified outputs. Cha nnel 1 also ha s line level outputs to connect to larger powered amp li fiers.
7 RS232 Connection The RS232 connect i on is used to control the G RS44 by an external contro ll er or computer and can work with our withou t keypads. The GRS44 connects to the RS232 controller with a 9-pin db9 connector. The progr am ming reference follows.
8 Supported Commands Command Summary # = numerical zone or amplifier channel value $$ = second num eri cal value (m ay be one o r tw o d igi ts) Function Command Range Read/Write Remarks Version (vr?).
9 Un -mute All (aum) "All channels un -m uted" Volume Request (#vl?) "Zone # volume level = $$" Volume Set (#vl$$) "Zone # volume level set" Volume All (avl$$) "All .
10 Troub leshooting Your Knoll amplifier is designed from trouble- free operat i on. If you follow the instructions in this manual , you should enjoy many years of high -quality listening enjoyment. However, as with any soph i sticated device, there may be occas ional problems upon initial installation, or during the life of the amp.
11 Limited Warranty Knoll Systems, Inc. ( “Knoll”) warrants that each GRS44 (“t he Product”) sold h e reunder will conform to and function in accordance with the written specifications of Knoll.
An important point after buying a device Knoll GRS44 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Knoll GRS44 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Knoll GRS44 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Knoll GRS44 you will learn all the available features of the product, as well as information on its operation. The information that you get Knoll GRS44 will certainly help you make a decision on the purchase.
If you already are a holder of Knoll GRS44, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Knoll GRS44.
However, one of the most important roles played by the user manual is to help in solving problems with Knoll GRS44. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Knoll GRS44 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
