UNiKA UD-064 & UD-064D Switching Power Amplifier
built-in LPFMix function in UD-064/UD-064D to automatically generate a mono mixed from the other
channels and have the mono mix to feed to the input of LFP filter. Please look into the above block diagram
for understanding how LPFMix is positioned in the signal path. For example, if you have Left on CH1 and
Right on CH2, by enabling LPFMix as well as BTL3&4, you can have a mono mix of CH1 & CH2 to feed
the input of LPF filter when the LPF filter is enabled. By doing so, you actually get a LPF filtered output
mixed from Left and Right audio without an audio console involved.
NOTE:
The above block diagrams do not show the preceding gain controls on each respective analog
pre-amplifier
The control range of gain of each preceding gain control is about -16dB ~ +8dB. The operation
of the gain control is linked and integrated into the volume control of its corresponded channel
and is transparent to the users' operation. However, users do observe the initial volume change
on the input of LPF when users adjust the volume of the corresponded channels from where
LPFMix source in the range from 0dB down to -19 ~ -24dB (depending on the setting of
analog sensitivity).
When inputs are sourced from Dante network audio, the whole analog pre-amplifier is
excluded from the signal path, so the above block diagram is already completely depicted and,
for the above example, changing the volume1/volume2 won't affect the input level of LPF or
output level of LPFMix.
Furthermore, you have the option to enable the eXtraTone™
function along with the LPF filter, so that you can further extend
the bass performance of your subwoofer into the band of insanely
ultra low frequency. The overall frequency response might look like
the illustration on the right.
NOTE:
the LPF Filter is introduced only in the pair of channels
where either BTL or PAR is enabled.
the mono mix of LPFMix can only apply to the input of introduced LPF.
the LPFMix is forcely diabled if all the 4 channels belong to either a BTL or a PAR
configuration.
the eXtraTone™ function only applies to the pairs of LPF-filtered channels if any of the LPF
filters in the amplifier is enabled.
the LPFMix is by default set to OFF in the SETTINGS menu.
Overview Description Getting Started Configurations
eXtraTone & LPF
In & Out Dante Applications Specifications Warranty
