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Balanced Audio Technology VK-33SE Owner's Manual

Manual is about: Vacuum Tube Balanced Stereo Preamplifier

Summary of VK-33SE

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    1 vk-33se warranty registration form unit serial number: _______________________________________ customer name: _______________________________________ address: _______________________________________ _______________________________________ date of purchase: _______________________________________ p...

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    2 in order to receive the full five year product warranty, please mail this completed form together with a copy of your sales receipt to balanced audio technology at the address below, within thirty days of purchase. Failure to do so will result in the product being warrantied for one year from the ...

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    3 vk-33se vacuum tube balanced stereo preamplifier owner's manual 1300 first stat blvd. Suite a wilmington de 19804 tel: 302-999-8855 fax: 302-999- 8818.

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    4 vacuum tube current sources in vk-33se your vk-33se 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 vk-33se, being part of the signal gain stage, have a direct effe...

  • Page 5: Warning:

    5 please consult the factory regarding options for other tube types that may be available in the future. Warning: the following procedure should only be performed by qualified personnel to change the current source: 1. Turn the unit off and wait at least 5 minutes to allow the tubes to cool down and...

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    6 turning the vk-33se off 8 phase button and led 9 mono button and led 9 mute button and led 9 input selection 9 volume knob 9 display format 10 fuction button 10 display brightness function 11 mute function 11 vk-33se programmable functions 12 parameter definitions 13 programming the vk-33se 13 bal...

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    7 do not operate with the cover removed. Do not expose to rain or moisture. Do not defeat the ground power-plug. Do not replace fuse with anything other than the same type and rating as supplied by the factory. Package contents included in the box should be the following: description quantity vk-33s...

  • Page 8

    8 physical placement it is recommended that you provide at least 6" of free space around the unit for proper ventilation. Mount the unit on a hard surface with proper ventilation underneath. Do not stack the vk-33se preamplifier on top of other units, nor vice versa. Connecting the vk-33se to your s...

  • Page 9

    9 vk-33se 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 i...

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    10 the unit can be turned off by pressing and holding the standby button. It will automatically mute. 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 ...

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    11 it is also used as a data input device in various function modes to program the unit. For example, it is used to set the balance adjustment when the vk-33se is switched into its balance mode. More on that in the corresponding sections of this manual. The volume control knob on the vk-33se is link...

  • Page 12

    12 programming mode until the exit command is issued. To exit the programming mode at any time, press and hold the function button for about two seconds. Display brightness function changing the display brightness: the vk-33se display can be dimmed or turned completely off by simply pressing the dis...

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    13 vk-33se programable functions the vk-33se 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. Eve...

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    14 parameter definitions: every input of the vk-33se 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 – g...

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    15 exiting the programming mode by pressing and holding the function button will store this adjustment for the selected input. The balance adjustment for each selected input is also stored when switching to another input while still in the balance programming mode. Relative volume adjustment. It is ...

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    16 alternatively, the volume offset number can be entered directly, based on your judgement of volume difference between the two sources. To do that, select the input, enter the volume programming mode by pressing the function button twice, and use the volume knob to set the volume offset number tha...

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    17 select the desired input enter the maximum programming mode by pressing the function button five times. Set the display to any desired number that will now represent the maximum allowable volume setting for the selected input. Exit the programming mode by pressing and holding the function button ...

  • Page 18

    18 display mode programming the volume display of the vk-33se can be switched to work in any of the following three modes: cnts: relative volume counts with the range of 000 to 140 dbu: decibel readings with respect to unity gain (0db). Dbm: decibel readings with respect to maximum gain (20db) note:...

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    19 order: the digits, the latin alphabet, the cyrillic (russian) alphabet, the greek alphabet. Advance to the next character by pressing the function button once. Exit the programming mode by pressing and holding the function button . Remote control functions: the optional vk-r3 remote control that ...

  • Page 20

    20 mute pressing this button will cause the mute function in the vk-33se to toggle between on and off states. The mute led on the vk-33se front panel will reflect the status of the mute circuit. Fade pressing the fade button on the vk-r3 remote control will cause the volume to smoothly decay over th...

  • Page 21

    21 fuse protection: a blown fuse in the vk-33se is an indication of a serious problem. If a replacement fuse fails as well, no further attempts should be undertaken. Please contact the factory for professional service. The proper fuse ratings are as follows: for 100-120 vac units: 2a 250v slow blow ...

  • Page 22

    22 resetting the vk-33se: under certain conditions it might become desirable to reset the internal microprocessor that controls all the functions of the vk-33se. Doing so will erase all user programmed setpoints, and will return the unit to its factory default state. In order to reset the vk-33se, d...

  • Page 23

    23 specifications inputs: 2 xlr’s + 3 rca’s outputs: main: 1 xlr + 1 rca tape out 1 rca maximum gain: 20db global feedback: none volume control resolution: .5db volume control number of steps: 140 frequency response: 2 hz to 200 khz input impedance (minimum:) 100kohm each phase output impedance 300 ...

  • Page 24

    24 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...

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    25.