1 rex warranty registration form unit serial number: _______________________________________ customer name: _______________________________________ address: _______________________________________ _______________________________________ date of purchase: _______________________________________ purch...
2 rex vacuum tube balanced stereo preamplifier owner's manual 1300 first stat blvd. Suite a w ilmington de 19804 tel: 302-999-8855 fax: 302-999-8818.
3 table of content current sources 4 changing current sources 5 ac shunt voltage regulators 6 introduction 7 package content 7 physical placement 8 configuring the rex 8 connecting to your system 9 front panel controls 10 rex power on sequence 10 turning the rex off 10 phase button and led 11 mono b...
4 vacuum tube current sources in rex your rex incorporates a unique feature that allows you to optimize its sound to tailor it to your individual taste or system requirements. The vacuum tube current sources incorporated in the rex, being part of the signal gain stage, have a direct effect on the un...
5 in order to change the tube type the user needs to remove the installed current source boards, and replace them with either another type, designed for a particular tube type, or install the 5881 tubes as a direct plug-in. Only the 5881 tubes can be used directly upon the removal of the 6c19 curren...
6 ac shunt voltage regulators the rex preamplifier incorporates another feature that allows the user to optimize its sound – the ac shunt voltage regulators. The ac shunt voltage regulators perform the final “cleaning” of the rex power supply rails. They work to reduce the minute fluctuations in the...
7 introduction thank you for your purchase of the balanced audio technology rex preamplifier. Please read this owner's manual to obtain the full benefit of the rex in your system. It will provide you with the needed safety information and operating procedures for this exceptional unit. Warnings: to ...
8 save all the packaging material in a safe dry area for the unlikely event that you need to return the rex to the factory for service. Physical placement it is recommended that you provide at least 6" of free space around each module comprising the rex preamlifier for proper ventilation. Mount the ...
9 connecting the rex to your system balanced components use balanced xlr interconnects. All input and output connectors are clearly marked on the back panel. Note: the rex xlr connectors are wired as follows: pin 1: common/shield pin 2: positive pin 3: negative for the rex, use the main 1 xlr output...
10 rex front panel controls standby button and led the standby button is used to turn the unit on and off and to switch the preamplifier into its standby mode. The led indicates the status of the unit’s power circuitry and has four state: led off display off unit is in off state display on unit is i...
11 phase button and led this button allows the user to invert the absolute polarity of the signal to compensate for some recordings that are made out-of-phase. The led indicates whether the unit is in its inverting or noninverting mode. This function is also accessible via the vk-r3 remote control. ...
12 display format: the rex vacuum fluorescent display (vfd) is capable of showing up to twelve alphanumeric characters. Its format depends on the mode of operation. In the normal play mode the display has the following format: 1. One character indicating the selected input number. 2. Four-character ...
13 display brightness function changing the display brightness: the rex display can be dimmed or turned completely off by simply pressing the display button on your vk-r3 remote control transmitter. Each press will reduce the brightness of display and led indicators in steps from full on to off, and...
14 rex programable functions the rex programming functions allow the user to optimize the unit configuration for any particular system set up. The flexible programming facility defines each signal input with a group of user- selectable parameters that are then stored in the unit’s memory. Every time...
15 parameter definitions: every input of the rex is defined with the following set of parameters. 1. Input name (examples include cd1, dvd1, ph-1, vkd5, or any other combination of up to four characters including the latin, cyrillic and greek alphabet as well as digits) 2. Balance adjustment – gain ...
16 relative volume adjustment. It is quite common to have sources with very different output levels connected to a preamplifier. In this case, switching between different inputs is usually accomplished by a large change in volume. The rex allows the user to avoid this inconvenience by setting volume...
17 phase programming. Select the desired input. Press the function button three times. The display will read: phase ninv. Use the volume knob to set the condition to ninv, inv or last. Exit the programming mode by pressing and holding the function button. Note: in the last mode, the state of the pha...
18 fixed gain mode in some systems (some a/v installations, for example) it is desirable to set a particular input to a fixed gain, that is then becomes unaffected by the volume knob. Most often it is required to set the preamplifier gain to unity (gain of 1). The rex allows the user to do so by usi...
19 input name programming: the rex allows the user to assign any a custom name to any input. Those names may include up to four characters. The default names for the inputs are as follows: 1 tape 2 tun 3 cd! 4 aux1 5 aux2 (it will automatically switch to ph1 if the optional phono card is installed) ...
20 remote control functions: the optional vk-r3 remote control that comes with your rex has the following functions: volume up and volume down control mute function fade down/fade up function input source selection 1 through 5 phase switch function switch display/power switch. The following describe...
21 display/power switch. The display/power button on the vk-r3 remote control provides two functions: turning the rex display on/off and switching the power to the preamplifier. To control the display: pressing the display button will change the display brighness. Turning the rex off with the displa...
22 resetting the rex: under certain conditions it might become desirable to reset the internal microprocessor that controls all the functions of the rex. Doing so will erase all user programmed setpoints, and will return the unit to its factory default state. In order to reset the rex, do the follow...
23 five year limited warranty terms and conditions 1. Limited warranty upon receipt of the attached warranty registration form, balanced audio technology warrants the purchased product to be free from manufacturing, materials, and workmanship defects for five years from date of original purchase, ex...
