Specifications

MADI 700 Series Guide14
DM 714/MD704 Front Panel
This section discusses both front panels and notes their few differences.
Signal Strength LEDs Each of the 28 channels has a four-seg-
ment LED that represents the following signal levels: -42 dB,
-18 dB, -6 dB (green), -.05 dB (red).
Trim Pot A trim pot adjusts the analog output level of channels
A1 and A2 between +12 and +26 dBu in 2-dB steps.
SR Conv The sample rate of all digital inputs is automatically
detected and, if asynchronous, converted to the system Sam-
ple Rate. This process is independently applied to each stereo
pair such that a combination of synchronous and asynchro-
nous signals can be connected to the DM714. Sample-rate
conversion is switched off when synchronous signals are de-
tected. The range of sample-rate conversion is 32–56 kHz. 88.2
or 96 kHz signals cannot be sample-rate converted and are
passed through if synchronous. If non-synchronous 88.2 or
96 kHz signals are detected, the upper signal strength LED
flashes red to warn the user that the sample rate for those
channels is not in sync with the system settings. Sample-rate
conversion reduces the bit depth in a 24-bit signal to 20 bits.
Sample Rate LEDs These LEDs indicate the Sample Rate to
which the converter is currently locked. Sample Rates are
auto-sensed but can be manually selected on the DM714. Sup-
ported Sample Rates are 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
and Custom Rates from external sources.
Sample Rate Source LEDs These LEDs indicate the format of
the Sample Rate Source to which the converter is currently
locked. Sample Rate Source can be auto-sensed or manually se-
lected. If an external source is not detected, the DM714 reverts
to Internal sync; the MD704 mutes its outputs. If a manually
selected source is not present, the Sample Rate Source indica-
tor blinks.
• AES: Sample Rate locked to AES Input.
• Word: Sample Rate locked to Word Clock Input.
• Internal (DM714 only): Sample Rate locked to its own in-
ternal crystal.
• MADI (MD704 only): Sample Rate locked to MADI.
• Auto: Sample Rate Source has been auto-sensed.
These LEDs appear in the same order in which signals are
tested for presence. This detection procedure occurs when the
converters are powered on. The Sample Rate (DM714 only)
and Sample Rate Source can also be selected manually.
Manual Selection Buttons The button below each Sample Rate
LED row manually selects the Sample Rate Source. The DM714
also allows manual selection of the Sample Rate.
Power Switch On/Off switch.
DM714 Front Panel
There are no user-serviceable parts in the
converters.