Birdland Audio Odeon-m1, Руководство пользователя, Страница: 8 / 18

The way music should sound
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O d é o n - m 1
4 - Understanding the Odéon-m1
The Odéon-m1 is mainly a 24 bit Digital-to-Analog Converter (DAC) and also a commodity passive
preamplifier which allows you to not only connect digital but also analog sources.
A DAC is a unit that converts digital data from CDs or any other digital medias into analog music
that can be fed to a power amplifier for listening. Digital data is usually extracted from Compact
Disks (CD) using a transport or a player and can be fed to the Odéon through either a digital coaxial
interconnect cable (commonly called S/PDIF) or a fiber optic. CDs store music using a digital
format of 16bits/44.1kHz but there are other formats which allow to increase the fidelity of digital
conversions such as the recent availability of 24bits/96kHz on audio DVDs (Digital Versatile Disk)
sometimes also called DAD (Digital Audio Disk). The Super Audio Disk format - recently introduced
by Sony/Philips - does not offer a way to carry digital data out of the box and are not compatible
with widely used S/PDIF or AES/EBU consumer and professional formats.
The Odéon-m1 will convert any digital data from 12 to 24 bits at sampling rates of 32kHz, 44.1kHz,
48kHz, 88.2kHz and 96kHz. You can connect 3 and up to 4 different digital sources to your Odéon
and use the buttons on the front panel to instruct it which source to convert.
The Odéon-m1 is also a passive preamplifier that allows you to connect 3 and up to 4 existing legacy
analog sources. Passive means that there are no active components in its analog section. You can
select which analog source to route to the Odéon output and the sound is passed on as-is unmodified
so you get out exactly what you feed in.
Your Odéon DAC is the result of the latest developments in both Digital and Analog domains along
with the highest quality components providing you with the most natural sounding conversion you
can get from your digital sources.
The DAC is a 24 bits delta-sigma converter which is composed of a 5
th
order digital interpolation
filter, a digital filter, a switched capacitor filter and a final 2nd order filter all developed together to
provide an overall constant group delay insuring no phase shift and a perfect stereo imaging. The
volume attenuator is a high-quality ALPS stereo potentiometer and the passive analog matrix is
made of the highest quality miniature air sealed relays with gold-plated over silver contacts.