Left Hand Knob - The left and side selector knob is a 5-position rotating knob which serves multiple functions. Pushing in direction of up, down, left or right will scroll through the left hand side options which include Input, Tuning, Station, Audio and Video.
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Headphone Jack - Headphones having a standard 1/4” stereo plug can be connected to the headphone output. Control Output - 1/8” Mono Mini-jack (Tip+ Ring -) source of 12VDC (100mA) Control output for controlling external devices, such as amplifiers and projection screens. A 12V (100 mA) signal is sent or stopped when the IR, RS-232 or Ethernet com mand for CTRL+ or CTRL- is sent.
CONNECTION OVERVIEW The following is an overview of connections found on the Reference 70. Further information can be found later in the quick guide or in the Reference 70 manual. This guide should only be used for reference only. It is recommended an authorized B&K installer or dealer is contacted for integration of the preamplifier in advanced installations.
Composite Source S-Video Source Component Source HDMI Source Video Input Connection - HDMI The HDMI connection carries both audio and video, although it is possible on the B&K product to only output one or the other (please see the menu structure for further information). To connect an HDMI video source to the B&K, connect the HDMI cable to the HDMI output on the source piece.
Analog Source Coaxial Digital Source Optical Digital Source HDMI Source Audio Input Connection - HDMI The HDMI connection carries both audio and video, although it is possible on the B&K product to only output one or the other (please see the menu structure for further information). To connect an HDMI audio source to the B&K, connect the HDMI cable to the HDMI output on the source piece.
Audio Output Connection - Unbalanced The Reference 70 supplies 7.1 RCA surround outputs. These surround outputs can be used to con- nect to an external amplifier and/or the subwoofer to the preamplifier. To connect seven amplifier channels, connect seven RCA audio cables between the surround outputs and the amplifier inputs. Be sure to match the appropriate preamp output to the speakers location in the room.
There are a few different ways to achieve control and configuration of the Reference 70. Using the component video or HDMI output on the Reference 70 you can get the on-screen menu GUI to an HD monitor. Ethernet or RS-232 communication can also be used using a serial or ethernet control device or a PC.
WARNING: to prevent fire or shock hazard, do not expose this unit to rain or moisture. Care should be taken to prevent objects or liquid from entering the enclosure. Never handle the power cord with wet hands. • The lightning flash with arrowhead within a triangle is intended to alert the user of the presence of uninsulated "dangerous voltage"...
Specification Preamplifier Surround Outputs Surround Sound Processing Frequency Response Processor Type Input Sensitivity Signal to Noise Ratio Input Impedance Output Impedance Maximum Output Level User Presets Audio / Video Source Inputs Balanced (XLR) Source Inputs Digital Coax / Optical Audio Inputs CK1.1 / 2.2 Keypad Compatible Multichannel Analog Inputs Tape Record Loop Outputs...
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