AD11
Operation
12
However, some equipment will only operate properly if the correct format is presented to the inputs
(typically consumer oriented equipment due to copyright concerns). For this reason, the AD11 has
settings for the output format.
These settings are numbered 7& 8 in Diagram 2, and like the SF settings, one must be “On”
(selected) at all times.
Please Note: These settings affect BOTH the XLR and RCA outputs in the same manner! This
means that the same format will be output from both the XLR and RCA outputs.
In most cases, a simple adapter or adapter cable can be used to convert the outputs to the other type
of connection. For example, an adapter can be used to convert the RCA output to an XLR to feed a
second AES input. In this case the output format would typically be set to “
aes
.”
In the other case, a simple adapter can be used to convert the XLR output to RCA to feed two SPDIF
inputs. In this case, the output format would typically be set to “
spdif
” because the consumer format
is more likely to be required by the equipment receiving the
AD11’s output.
If you are feeding both an AES and SPDIF input, the
spdif
setting will allow the RCA input device to
operate “normally.” The AES input device is likely to accept the signal. In some cases, a change to
the AES input device’s settings may be required to allow the audio to pass through normally.
phantom (+48V Phantom Power for Condenser Microphones)-
There is a Phantom Power setting for each channel. The left channel phantom power status indicator
is number 10, and the right channel indicator is number 9 in Diagram 2.
- Immediately after AC power is applied to the AD11, the unit goes through an initialization sequence.
First a single LED “scans” each channel of the meter, then both channels. Next, the AD11 enters a
special version of the Setting mode to allow the user to check and change the settings of the
Phantom Power, if desired. The cursor moves automatically through each setting until it reaches the
phantom
setting for the right channel, where it pauses for ~8 seconds to allow changes to the right
channel
’s setting. It then moves to the left channel and pauses for ~8 seconds to allow changes to
the left channel setting. Regardless of whether the settings are changed or not, the sequence then
completes itself and the AD11 reverts to Operating mode. This insures that the user always has an
opportunity to be certain the phantom power is set properly before the AD11 can be used.
- It is advisable to not enable the phantom power setting until after a condenser microphone is
plugged into a channel of the AD11, and to disable the phantom power before un-plugging the mic to
minimize the possibility that +48V will be present on the input when a line level source is connected.
- This function is controlled separately for each channel, and
automatically becomes inactive for gain
settings of 12dB or less
; even when the
phantom
setting is enabled for that channel and the LED is
illuminated.
- The +48V phantom power function is enabled on the left channel input when the
left
channel LED is
on, and is enabled for the right channel input when the
right
channel LED is on.
Pleas
e Note: Phantom power turn “on” is ramped to minimize the possibility of damage to ribbon
microphones. However, caution is still advised when using ribbon microphones with the AD11;
especially with vintage ribbon microphones.
Sat (Soft Saturation Mode)-
- The
sat
function can be enabled individually for the left and right channels.
- The left channel setting is number 12, and the right channel setting is number 11 in Diagram 2.
The AD11 features the Lavry exclusive Soft Saturation mode- a digital emulation of analog tape
saturation. The advantage of this mode is that it allows dynamic range control (increased average
level) with no degradation due to attack and release times employed in compression and limiting.
This means that the Soft Saturation can be used either before or after compression or limiting without
undesirable side effects due to differences in time constants between the two processes.
