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  1. questionWhat is the sonic signature of the Model 102 stereo power amplifier?
    The Model 102 stereo power amplifier raises the bar to new heights in its achievement of sonic excellence in a superbly compact and power efficient package. It inherits the hallmark imaging, staging, and the effortless musicality of Jeff Rowland’s great classics. Its broad frequency exten ...
  2. questionWhat are the benefits of the compact design of the Model 102 stereo power amplifier?
    A compact footprint sporting a width of only 13.7 inches, a depth of 7.5 inches, and a height of mere 2.7 inches, combined with energy efficient green technologies that ensure cool operation and high reliability, make the elegant Model 102 stereo amplifier ideal for every listening environment. ...
  3. questionDoes the Model 102 stereo amplifier feature user accessible fuses?
    The Model 102 stereo amplifier does not feature any external fuses. All Model 102's fuses are internal to the chassis. These fuses should be accessed and replaced only by authorized repair personnel, authorized JRDG dealers, and by the JRDG factory.
  4. questionWhat are the salient technical features of the Model 102 stereo power amplifier?
    As typical for JRDG products, the entire chassis of the Model 102 stereo amplifier is milled from a solid, massive block of 6061 aircraft-grade aluminum to provide a vibration-free and EMI resistant enclosure for its sensitive audio circuitry. The chassis is sealed to prevent dust from penetr ...
  5. questionIs the PC-1 PFC rectifier compatible with the Model 102 stereo power amplifier?
    Yes. As the Model 102 stereo power amplifier does not incorporate an active power factor correction (PFC) circuit—but never-the-less uses auto-sensing and auto-ranging switch mode power supplies—it is inherently compatible with the external PC-1 active power factor correction (PFC) r ...
  6. questionCan I use a single PC-1 on a combination of 102 stereo amplifier and Capri preamplifier?
    Yes, the Capri linestage draws only 6W, while the 102 stereo amplifier draws a maximum of 500W under peak conditions. Their combined power requirements are well matched by a single PC-1, which can deliver 750W of pure DC power. The 2 components can be connected to a single PC-1 through a “ ...
  7. questionWhy the Model 102 stereo power amplifier is completely balanced in its input stages?
    The Model 102 stereo power Amplifier from Jeff Rowland Design Group features a fully balanced Differential Mode input and output circuit that is as technologically advanced as it is musically involving, and is pivotal to the 102’s high common rejection ratio of 85dB. Improving performance ...
  8. questionWhy does the Model 102 stereo amplifier employ the ICEpower 200 AS power conversion module?
    Over the last quarter century, Jeff Rowland has established his hallmark reputation for unsurpassed engineering artistry, for manufacturing products that have consistently mustered the test of time, but also for blazing the path in the high end audio industry with trend setting technical innovat ...
  9. questionWhy does the Model 102 stereo amplifier feature fully balanced output stages?
    The 102 is fully balanced in its output stages to maximize speaker control and authority, staging and imaging, nuance and resolution, while halving the levels of output currents. The uncompromising balanced design of the Model 102 stereo amplifier extends to its output stages. The ICEpower 200 ...
  10. questionWhy are both the positive and negative leads on the speaker connectors of the Model 102 stereo power amplifier carrying current?
    The uncompromising symmetrically balanced design of the Model 102 stereo power amplifier extends to its output stages to yield superior speaker control at any supported load. The ICEpower 200 AS module at the core of the Model 102 is inherently balanced, and drives the amplifier’s output s ...
  11. questionIs the Model 102 stereo power amplifier compatible with high efficiency speakers?
    The Model 102 stereo power amplifier supports a maximum speaker impedance load of 16 Ohms, which makes it compatible with most high efficiency speakers.
  12. questionIs the Model 102 stereo power amplifier compatible with low efficiency speakers?
    The Model 102 power amplifier supports a minimum speaker impedance load of 3 Ohms. The amplifier features a damping factor of 1000. This makes it compatible with a number of relatively low efficiency speakers of moderate size. Please note that Model 102 is not compatible with speakers whose imp ...
  13. questionCan the Model 102 stereo power amplifier drive any speaker load?
    The Model 102 stereo power amplifier supports speaker impedance loads between 3 and 16 Ohms. This makes it compatible with a large number of speakers on the market, ranging from high efficiency speakers to a number of lower impedance speakers of moderate size However, the Model 102 is not compa ...
  14. questionIs the Model 102 stereo amplifier compatible with tube preamplifiers and other high output impedance preamplifiers?
    Yes. The 102 stereo power amplifier features an input impedance of 48 K Ohms. While the combination of a pair of 102s with a JRDG Capri preamplifier creates musical magic, its high input impedance makes the Model 102 exceptionally compatible with almost any preamplifiers on the market, including ...
  15. questionWhat is the estimated break in time for the 102 stereo power amplifier?
    A new 102 stereo amplifier gradually reaches its full performance potential during an extended break-in period that may protract for over 1200 hours of playing time. Sophisticated amplifiers like the102, which operate at low temperatures and contain switch mode power supplies and ICE Power modul ...
  16. questionCan the Model 102 stereo power amplifier be left powered on at all times?
    Yes, as the 102 stereo power amplifier draws only 10W when idling, it is recommended that it be left powered on even after its initial break in process is complete. This ensures that whenever music playback resumes, the 102 stereo amplifier achieves peak performance within a few minutes of play ...
  17. questionCan an external power conditioner benefit the sound of the Model 102 stereo power amplifier?
    An external JRDG PC-1 active power factor correction (PFC rectifier and conditioner enhances the Model 102 stereo power amplifier more than any third party external power conditioner. The JRDG PC-1 was expressly designed by Jeff Rowland to further enhance the sonic performance and refine the mus ...
  18. questionDoes the Model 102 stereo power amplifier support speaker wires terminated with banana plugs and bare wires?
    The patented Cardas binding posts of the Model 102 accept only spade terminations for loudspeaker cables. Banana plugs or bare wire connections can be used with an optional clamp available from authorized JRDG Dealers.
  19. questionWhere is the serial number of the Model 102 stereo power amplifier located?
    The serial number of the Model 102 stereo power amplifier is located on the rear panel of the chassis. It starts with the letters “SD”. The serial number must be included with any correspondence with the factory.
  20. questionDoes the Model 102 stereo power amplifier support an external 12V power trigger?
    Yes, the Model 102 supports a 12V remote power trigger. A 1/8” (3.5 mm) mini-plug connector is provided on the rear panel of the 102 for remotely switching the amplifier between Operational and Standby modes. When connected to another component with the proper circuitry, the amplifier̵ ...
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