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15
EN
APPENDIX
BMC-2 Design Philosophy
In the design of BMC-2, it has been important to
provide constant control of your speakers, regardless
of the state of your computer or other signal sources.
Another criterion was not to touch the signal unless
necessary.
Consequently, BMC-2 features a synchronous design
with bit transparent handling, impressive jitter rejection
and a sample rate generator with a memory lock
function that is invoked should the clocking input fail.
The XLR outputs have been optimized for both
balanced and unbalanced operation. When buying or
soldering XLR-to-TRS adapters, please follow the
wiring diagram on the following page to take advantage
of hum and noise suppression even in unbalanced
mode.
One important feature of the BMC-2 is that it can avoid
noise when switching between different sample rates.
But thanks to the sample rate memory lock, BMC-2 can
even handle an input clock that is coming and going.
BMC-2 continues to run at the last measured clock
rate, when your Airport Express or other feeding device
may think it’s time to sleep.
We try to treat your speakers as gentle as possible, so
if you remove power from BMC-2 ungracefully by
pulling the power instead of switching it off, all you hear
is a minor anomaly.
There is one thing beyond our control, however: If you
attach digital speakers and switch between sources at
different sample rates, it depends on these speakers
whether noise occurs during switching or not. It is down
to how the speaker handles a change of sample rate
while it is active.