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There were 23 articles found in this category:

  1. questionWhat are the salient technical features of the Capri preamplifier?
    Use of extremely low noise symmetrically balanced signal processing modules (OPA-1632), permit exceedingly short signal paths and super compact design geometries. This results in astonishing nimble response, very fine detail resolution, broad frequency extension, superb staging and imaging, an ...
  2. questionWhy is the Capri preamplifier built around the tiny Burr Brown OPA1632 fully differential I/O audio amplifier modules instead of utilizing bulky discrete components?
    The extraordinary performance of the Capri preamplifier is made possible by the exceedingly high electrical and electronic performance of the TI Burr Brown OPA1632 fully differential I/O audio amplifier modules. Conversely, slower traditional discrete components could not have imparted Capri wit ...
  3. questionIs Capri a green product, and why is it important?
    Yes, drawing only 6 Watts of power in class A, the Capri preamplifier is definitely a green product. Thanks to its highly regulated and very high speed switch mode power supply, and the extremely efficient TI Burr Brown OPA1632 fully differential I/O audio amplifier modules, it consumes as littl ...
  4. questionIs the Capri preamplifier compatible with the PC-1 PFC rectifier?
    Yes, the Capri preamplifier can be safely connected to a PC-1 power rectifier and conditioner, regardless of local AC mains voltage. Capri is equipped with auto-ranging circuitry, and dual-stage voltage regulation, compatible with AC mains voltages ranging from 85 to 265 VAC, and AC frequencies ...
  5. questionDo I need to change the Capri from 110V to 240V operations before connecting it to a PC-1?
    There is no need to change voltage on Capri before connecting it to a Rowland PC-1 external rectifier. Capri can operate on any AC mains voltage from 85V to 265V, and from 50Hz to 60Hz without any internal adjustments. Therefore, the Capri preamplifier can be safely connected to a PC-1 power rec ...
  6. questionCan I use a single PC-1 on a combination of 102 stereo amplifier and Capri preamplifier?
    Yes, a single PC-1 active power factor correction (PFC) rectifier unit can be connected to a Capri preamplifier and 102 power amplifier pair. The Capri linestage draws only 6W, while the 102 stereo amplifier draws a maximum of 500W under peak conditions. Their combined power requirements are wel ...
  7. questionWhy does the Capri stereo preamplifier employ a switching mode power supply?
    The dual stage regulated switch mode power supply of the Capri preamplifier is pivotal to its musical magic. The highly efficient, very nimble, and incredibly low noise operation of the switch mode power supply (SMPS) is an integral contributor to the Capri’s astonishing musical performanc ...
  8. questionWhy is Capri completely balanced in both its input stages and its output stages?
    The exceptional electrical characteristics of the high speed TI Burr Brown OPA1632 fully differential module, makes it possible to create the core of an advanced preamplifier like the Capri. Thanks to its fully balanced topology, to a superb common rejection ratio of 85dB over a frequency band r ...
  9. questionIs Capri compatible with tube power amplifiers as well as solid state (SS) power amplifiers?
    Yes, with its incredibly low output impedance of only 80 Ohm balanced, and 40 Ohms in single ended operations, the Capri preamplifier is compatible with most solid state and tube-based power amplifiers on the market today. Compatible power amplifiers can have input impedances as low as 1000 Ohms ...
  10. questionDoes Capri support unity gain for home theater bypass?
    Yes, Capri is equipped with a single ended unity gain bypass input for home theater applications. Theater Bypass can be selected via the Capri’s front control panel, as well as from the Capri’s remote control transmitter.
  11. questionDoes Capri support single ended as well as balanced inputs and outputs?
    Yes, the Capri preamplifier features a full complement of balanced and single ended inputs and outputs, including: Inputs: 2 x balanced XLR. 2 x single ended RCA. 1 x single ended unity gain (theater) bypass. Maximum input level: 7 Volts RMS at 0 dB gain. Outputs: 1 x XLR balanced line level ...
  12. questionHow do I return Capriís channel balance to its neutral middle position?
    To return the Capri preamplifier's channel balance to the center (0 dB) position, press and hold the MUTE button on the front panel of the preamplifier for 3 seconds. This will reset all microprocessor controlled functions and return the balance position to L/R +/-0 dB. Optionally, press the rem ...
  13. questionWhere can I obtain the optional Phono cards for the Capri preamplifier?
    Phono cards for the Capri preamplifier are available from authorized JRDG dealers, or directly from the JRDG factory.
  14. questionWhy are Capriís phono cards so small, and how can they be any good?
    Like the Capri preamplifier itself, its phono cards due their high performance to the incredible shortness of their signal path and exceptional compactness of their topology. This is made possible by the incorporation of advanced high speed and low distortion components, and the phono cards̵ ...
  15. questionDoes Capri support an external phono stage?
    Yes, an external phono stage can be connected to any of the balanced or single ended inputs of the Capri preamplifier.
  16. questionDoes Capri have a remote control?
    Yes, Capri is supplied with a 6-function remote control that supports the following functions: Volume up, in 0.5dB increments. Holding this button down increases the volume continuously, until the button is released, or until 99.5 is shown on the volume display. Volume down, in 0.5dB increment ...
  17. questionHow do I replace Capriís remote control battery?
    Capri’s remote control is powered by a single standard 9 Volt alkaline battery. When the remote begins to weakens, or no longer functions, it is likely necessary to replace its battery. Access to the battery is gained by removing the two Phillips head screws that secure the back cover of t ...
  18. questionWhere do I locate the Capriís serial number?
    The Capri Stereo Preamplifier’s serial number begins with the letters “SE.” This serial number is located on the rear panel of the chassis. Please include this serial number with any correspondence regarding your Capri Stereo Preamplifier with the JRDG factory or with your auth ...
  19. questionWhere is the Phase control of the Capri preamplifier?
    Capri's phase control is found on the front panel of the preamplifier. Pressing the phase button inverts the phase of both channels of the selected input and illuminates the yellow indicator light below the button. Pressing this button again turns off the light and returns the phase to uninverte ...
  20. questionCan the Capri preamplifier be left on at all times?
    As Capri draws only 6W, and operates very cool to the touch, it is recommended that it be kept on continuously. This will maintain Capri’s components at optimum operational temperature, and will maximize Capri’s musical performance. Capri should be turned off or unplugged during sto ...
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