Michael Yee Audio
The SuperNova 2...
Manual for the SuperNova 2
The SuperNova 2 is an extremely versatile preamplifier that delivers an accurate, rich, precise representation of recorded sound, allowing users to hear music as it was meant to be heard. The SuperNova 2 accepts two phono cartridges and, if used in Power Amp-Direct setup, an additional line-level input. The unit also has independent input loading and gain settings and comes with a sperately housed Battery Power Supply (four that allows the unit to run powered by four self-recharging battery packs, which frees the system from noise and distortion from AC power and improves the sound accuracy even further. The SuperNova 2 can run off wall power or off of the battery power supply. The unit connects to the wall with the supplied wall mount transformer.
Built in California, the SuperNova 2 is a battery-powered preamplifier designed for flexibility and performance, accepting two phono and one line-level input, and featuring rear-panel switches for flexibility in gain and input loading settings. The SuperNova 2 also offers two output configuartion options, Standard (a fixed or line-level output configuration to be used if the unit is going into a preamplifier or line-stage amp), or Power Amp-Direct (a variable output configuration to be used if the unit is connected directly to a power amp). The power supply features two rechargeable internal NiMH dual mono battery packs, and a Smart Sensing auto recharge feature which instructs all AC and charging circuits to automatically disconnect when listening in battery mode. The unit also features a proximity detector switch on the front panel to indicate charging status and mode.
The SuperNova 2 Battery Power Supply
Problem: Unit goes into charging mode repeatedly.
The battery charging system may need several charging cycles before the batteries are fully charged. Because the maximum charging time is limited by software and the batteries are so high capacity, the battery packs are actually not fully charged for several cycles. The unit will still operate perfectly, but the indicator light will not indicate a full charge for several cycles.
Problem: Batteries have come loose in shipping.
There have been instances of the battery packs coming loose during shipping. We have addressed this by adding a third battery strap to the units. If your batteries have come loose, reconnect them as per the diagrams on the Battery Replacement page.
Problem: After several years of use, batteries fail to hold a charge.
Batteries will eventually need to be replaced (they average about a four-year life span). See the Battery Replacement page for further details.
Problem: System noise or hum.
With the SuperNova 2 set at very high volumes and no record playing, there exists the possibility of a very slight hum coming from the unit. This is normal, and will not be evident under normal circumstances with a record playing at reasonable volume. It is not unusual to have a little noise in an analog-based system, especially at very loud playback levels. Most prefer this to the sterility of digital.
Do not leave the Battery Power Supply plugged into the SuperNova 2 if the wall-mount transformer is NOT plugged in. This will quickly compromise the integrity of the batteries. We suggest leaving the power supply plugged into wall power at all times.