21
Caution:
Do not switch power off and on rapidly, as this interrupts the
normal power-up sequence. We advise waiting at least five
seconds between power cycles.
2
DIGITAL OUTPUTS
These outputs provide
digital audio signal
(
DAS
)
via
cables equipped with
either XLR-type or RCA-type connectors to a digital audio processor.
The XLR output conforms to the Audio Engineering Society/European
Broadcast Union (
AES
/
EBU
) professional digital audio standard, which calls
for a 110
Ω
transmission of the DAS. Use a digital interconnecting cable spe-
cifically designed for the 110
Ω
AES
/
EBU
standard, such as Madrigal MDC-1
cable, when using this input, with pin assignments as indicated below:
1 2
3
Pin 1: Chassis ground
Pin 2: non-inverted digital
Pin 3: inverted digital
Connector ground lug: chassis ground
It has been Madrigal’s experience that the
AES
/
EBU
interconnection standard
offers the best quality of all digital transmission interfaces when fully opti-
mized, and we recommend its use wherever possible between Mark
Levinson components.
However, optimizing any electrical digital interface completely represents a
significant engineering challenge. It is entirely possible that a different type
of input may actually outperform a less-than-optimized
AES
/
EBU
implementa-
tion on some brands of digital components. For this reason, we have gone
to great lengths to fully optimize both of the digital outputs on the Nº39. If
you are using your Nº39 with a different brand of processor, we recom-
mend experimenting to determine which type of input on that component
results in the best audible performance.
The RCA output provides
digital audio signal
(
DAS
)
via
cables equipped
with RCA-type connectors to the digital processor. It conforms to the Sony/
Philips Digital Interface Standard (
S
/
PDIF
), which calls for a 75
Ω
transmission
of the DAS. Use a digital interconnecting cable specifically designed for the
75
Ω
S
/
PDIF
standard, such as Madrigal MDC-2 cable, when using this output.
3
DIGITAL INPUTS
These inputs accept
digital audio signal
(
DAS)
via cables equipped with
either
eiaj
optical or
RCA
(
S
/
PDIF
) coaxial connectors from digital sources
such as a compact disc transport, laser disc transport, digital audio tape
transport, or digital broadcast receiver.
The
eiaj
input accepts
digital audio signal
(
DAS
) via optical cable equipped
with the
EIAJ
optical connector (sometimes called “Toslink™”) from digital
sources such as a compact disc transport, laser disc transport, digital audio
tape transport, or digital broadcast receiver.