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Knoll GRS44 manual

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Table of contents for the manual

  • Page 1

    G RS 44 8 Channel E co- Sy stem™ Controller-Amplifier Installation Instructions v1.1[...]

  • Page 2

    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. Install in accordance w ith the manufacturer’s instructions. 8) Do not install near any heat so[...]

  • Page 3

    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. This equipm ent generates , uses and can radiate radio frequency energy a[...]

  • Page 4

    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. The G[...]

  • Page 5

    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. Should you discover th at your amp[...]

  • Page 6

    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. To ensure that the high qua l ity si gna l s produced by your a m plif ier are carr ie d to y our speakers without loss of clarity or reso l ution, Knoll advises that you use high[...]

  • Page 7

    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. 1.0 Terminal Settings To control th e GRS44 amplifier via other control system s, connect [...]

  • Page 8

    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?) none read only Reset (rx) none write only 1 second Channel On (#on) 1-4 write only Channel Off (#of) 1-4 w r ite o nly Mute (# m u) 1-4 w rite only U[...]

  • Page 9

    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 volume levels successfully changed" Input Set (#sl$) "Zone # input set" Input Request (#sl?) "Z one # is currently using i nput ch[...]

  • Page 10

    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. The items on t[...]

  • Page 11

    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. Said limited warranty sh al l apply only to the fi rst person o r entity that purchases the Product for personal or business use and not for the pu[...]