Owner`s manual

Avoid connecting the e28 DAC to receivers and any other sound processing equipment
that performs analogue to digital (ADC) conversion. Digitizing the analogue output signals
back to the digital domain for processing will undo the benefits that e28 brings to you.
Remember that your sound system is as good as the weakest link in the sound processing
chain.
Analogue Interconnect Recommendations
Over-engineered interconnects made from exotic materials are unnecessary. When selecting cables, the
following characteristics are important:
• Reliable electrical contact
• Low resistance
• Robust mechanical design
Remember that cables act as filters. The shorter the cable, the more transparent your system will be.
Connecting the Power Adapter
To minimize ground noise and hum, it is recommended to connect the power cords of all components to
a single point - usually a single surge protector with multiple outlets. Connecting all components to a
single point, as close as it is practically possible minimizes the differences in ground potentials between
the components.
Using an Upgraded Power Supply
The e28 DAC comes with a 12V/1670mA power adapter. This power adapter has been
tested to comply with the DAC’s power supply and quality requirements and allows for
very high performance. A better unit may allow you to squeeze the last bit of performance
from the e28 DAC. If you decide to use another power supply, the specifications marked
on the back of the e28 DAC must be observed.
Surge Protectors
We strongly recommend the use of surge protectors for all of your audio and video components.
Isolating the Cable TV Ground
If you have a cable TV connected to your audio system, ensure that the TV cable ground is galvanically
isolated from the audio system ground. The TV cable ground, usually connected to the earth outside
your home, can have a significantly different potential than the audio ground. This condition can cause
audible hum. If you suspect this is the case, use a cable TV ground isolator just before the cable set-top
box or at the RF TV input.
When turning on and off your music system, the power amplifier should be the last
component to be turned on and the first component to be turned off. This prevents power
on/off transients from being transmitted to the loudspeakers.
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