
NHT Xd Filter Set Loader Software -
This is the program that will
allow you to upload filter sets and
firmware changes into your XdA Digital
Integrated Amplifier
XdFilter 1.8 Setup.exe - updated
12.12.06
<Download>

This is the first production filter
set used for the XdS/XdW speakers.
Used in all current XdAs.
nht-xd-240305-1.flt
<Download>
This is a filter set designed for
high output applications for use with
systems that contain two XdWs on the
XdA. The crossover frequency between
the XdA and XdW has been raised to
135Hz to allow higher output from
the XdS. For best imaging, each XdW
must be located within 1’ of
it’s XdS.
nht-xd-040805-1.flt
<Download>
This filter set is designed for applications
that need lower bass extension and have two
XdWs connected to the XdA. The
crossover frequency between the XdA
and XdW has been raised to 135Hz to
allow higher output from the XdS.
The filter for the XdW has been adjusted
to give the system bass extension
to 20Hz at -3dB. For best imaging,
each XdW must be located within 1’
of it’s XdS.
Use of this filter set will decrease
the output of the system due to the
increased equalization needed to extend
the XdW bass response to 20Hz. If
the system playback level is too high
while producing low frequencies, the
XdW amplifiers may periodically mute
to protect themselves. This is normal
behavior. If this occurs, turn the
playback level down.
nht-xd-040805-2.flt
<Download>
This is the current revision to the
firmware code for the XdA when used
with the XdS and XdW speaker systems.
We recommend that all users of the
(consumer Xd system) XdA upgrade to
this version when used with the XdS/XdW
speakers.
107_9.frm - updated
11.29.06
<Download>
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