Assessments - 3, GPA: 4
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Facilidade de uso
Use care when using single- ended connections as the ground connection is made last and broken first. Turn the system off prior to making or breaking single- ended connections. Single-ended connections are not recommended for connections requiring long cable runs. Off When the AC power cord is not plugged into the wall, the red stand-by LED is not illuminated and the component is off. Stand-by Mode When the AC power cord is plugged into the wall, the red stand-by LED illuminates, indicating that the component is in the stand-by mode. This low power consumption status keeps the audio and circuits at idle. Krell recommends leaving the component in the standby mode when it is not playing music. Operational Mode From the stand-by mode, when the power button on the front panel is pressed and the blue power LED illuminates, the component is in the operational mode and ready to play music. Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than the voltage domain. This unique technology provides the component with exceptional speed and a wide bandwidth. Krell Showcase Amplifier Unpacking Unpacking Open the shipping box, and remove the top layer of foam. The following items are visible: 1 Showcase Amplifier 1 Accessory Kit containing: 1 AC power cord 1 12 VDC output (12 V trigger) cable 1 spare AC mains fuse 1 10 A slow-blow fuse for 100–120 VAC 1 5 A slow-blow fuse for 220 –240 VAC 1 packet containing the owner’s reference manual and the warranty registration card. IMPORTANT Two people are needed to remove the amplifier from the shipping box. 2. Grasp the underside of the amplifier and lift it straight out of the shipping box. 3. Place the amplifier in a safe location and remove the protective plastic wrapping. Notes If any of these items are not included in the shipping box, please contact your authorized Krell dealer, distributor, or Krell for assistance. Save all packing materials. If you ship your amplifier in the future, repack the unit in its original packaging to prevent transit damage. See Return Authorization Procedure, on page 16, for more information. Krell Showcase Amplifier Placement AC POWER GUIDELINES Before you integrate the Showcase Amplifier into your system, review the following guidelines to choose the location for the component. This will facilitate a clean, trouble-free installation. The Showcase Amplifier requires at least two inches (5 cm) of clearance on each side and at least two inches (5 cm) of clearance above and below the component to provide adequate ventilation. The Showcase Amplifier does not require any type of special rack or cabinet for installation. For the dimensions of your amplifier see Specifications, on page 17. Place the amplifier as close to the loudspeakers as possible and keep the loudspeaker cable length to a minimum. Loudspeaker cable adds impedance to the load the amplifier must drive, regardless of the cable’s gauge. Krell amplifiers drive the lowest impedances with ease, but long loudspeaker cables reduce the maximum power that is delivered to the loudspeakers. Krell recommends operating the Showcase Amplifier from a dedicated 15-amp AC power line. Please contact your Krell dealer, distributor, or Krell before using any devices designed to alter or stabilize the AC power for the Showcase Amplifier. Krell Showcase Amplifier Figure 1 The Showcase Amplifier Front Panel Figure 1 The Showcase Amplifier Front Panel 1 Power Button 2 Stand-by LED 3 Power LED Front Panel Description See Figure 1 on page 5 The Showcase Amplifier front panel provides power on and indicates operating status. 1 Power Button Use this button to switch the Showcase Amplifier power between the stand-by and the operational modes and also to switch the 12 VDC output (12 V trigger) on and off. 2 Stand-by LED The red stand-by LED illuminates when the AC power cord is plugged into the wall. The stand-by LED flashes when the protection circuit is activated. 3 Power LED The blue power LED illuminates when the amplifier is in the operational mode. Krell Showcase Amplifier Figure 2 The Showcase Amplifier Back Panel 6 4 5 7 8 9 OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 OUTPUT 6 OUTPUT 7 INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 Showcase Multi-channel Amplifier KRELL INDUSTRIES, INC. 45 CONNAIR ROAD ORANGE, CT 06477-3650 USA 50/60 Hz MADE IN USA 30mA max. OUT IN 12VDC NO USER SERVICEABLE PARTS INSIDE Figure 2 The Showcase Amplifier Back Panel 6 4 5 7 8 9 OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 OUTPUT 6 OUTPUT 7 INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 Showcase Multi-channel Amplifier KRELL INDUSTRIES, INC. 45 CONNAIR ROAD...
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