Expand the scope of your home stereo system with the touch of a button with Knoll Systems' GRS44 Four Zone Multiroom Amplifier. This amplifier pairs with RS232 adapters to conveniently control audio with smartphones, tablets, laptops, and more. While the GRS44 streamlines your stereo system with its remote control capabilities, this amplifier also gives you the freedom to designate audio to specific zones throughout your home or business. This means you can wirelessly turn on music in one room or zone while adjusting bass or tremble in another by simply using your smart device. Enjoy your favorite music poolside or while cooking dinner with a tap of your device's touch screen. Whether you prefer using an Ethernet or a WiFi connection, there is a RS232 adapter to match your ideal set up (Smarthome Item #'s: 81182 and 81185). Attach your adapter to the GRS44's RS232 data port and configure your device to begin externally controlling the amplifier.
The GRS44 features four deluxe digital volume controlled stereo amplifiers with individual four source selection. It is built with class A/B amplifier design circuitry, four stereo inputs, and four stereo outputs, making it a great central point for any speaker system. Because the GRS44 is a member of the Knoll Eco-System family of products, it consumes almost no energy when the unit is turned on and in standby. With efficient energy conservation comes lower living costs and a smaller carbon footprint.
Use the iKontrol app to allow smartphones and tablets to control Knoll stereo controller-amplifiers from the palm of your hand. iKontrol is compatible with iPhone, iTouch, iPad and Android devices. This app works alongside other vendor hardware and software such as Bitwise, Global Cache, iRule and On-Controls. To download iKontrol, please visit the manufacturer's website.
Specifications Manufacturer Knoll Systems Manufacturer Product No. GRS44 UPC 042887129221 Inputs 8 gold RCA jacks with adjustable gain Input Impedance 50k ohms Outputs Removable screw terminal, accepts 12-20 gauge wire Output Power 30 watts RMS per channel (8 ohms). 60 watts per zone Peak Output Power 50 watts per channel (8 ohms) Ideal Impedance 4 - 8 ohms Frequency Response 10 Hz - 40 kHz +/- 1dB (1w) S/N Ratio Over 100 dB A weighted (30 watts) THD distortion Less than 0.1% 20 Hz to 20 kHz IMD distortion Less than 0.01% 60 Hz 7 kHz 4:1 (SMPTE) Trigger output 12 VDC on 3.5mm jack Volume Adjustments 81 steps Fan No fan Source Selection Four stereo inputs to four stereo outputs Dimensions 17" x 3.5" x 11.5" Power 400 watts at 117 VAC or 230VAC Weight 17 lbs