Product Datasheet/Brochure

21
Impulse Response (IR)
Impulse Responses are mathematical functions representing the sonic measurements
of specic audio systems (for the HX Eects device, acoustic guitar body resonance
or speaker cabinet and microphone combinations). The HX Eects device can load
and store up to 128 custom or third-party IRs at a time.
IRs can be utilized within your presets by adding an IR block to your Signal Flow, and
then selecting any of the 128 IR index locations to which you've imported an Impulse
Response .wav le. You can add a max. of one 2048-sample IR block, or up to two
1024-sample IR blocks to your Signal Flow within a preset.
Loading Custom IRs
Loading custom Impulse Responses requires connecting to the HX Edit software in
your Mac or Windows computer. The HX Edit application is available as a free down-
load from line6.com/software.
NOTE: If you are using a Windows
®
computer - You'll need to rst install the
Line 6 HX Eects Device Driver, which is included with the HX Edit applica-
tion download or can be downloaded individually from line6.com/software. No
driver installation is necessary for Mac computers.
1. Connect the HX Eects device to your computer via USB and
open the HX Edit application.
2. Click the Impulses tab.
3. Drag one or more IR les from the desktop or any Finder win-
dow directly into the HX Edit app's Impulses list.
NOTE: The HX Eects device utilizes mono IR les up to 2048 samples in
length. Upon import, the HX Edit app automatically shortens (or lengthens)
all IR les to 2048 samples, but you may choose a less DSP-intensive, 1024-
sample version from the IR block menu. Optionally, a stereo .WAV IR can be
imported and the IR Manager will utilize only the left channel.
HX Edit updates the HX Eects hardware's IR list automatically. The HX Eects
device can import and store up to 128 IRs at a time. 48kHz, 16-bit, mono, .WAV
type IRs of up to 2,048 samples are natively supported, but the HX Edit app al-
lows you to import IR .WAV les of dierent sample rate, bit depth, length and ste-
reo format, and the app will convert these attributes automatically before sending
to the HX Eects hardware.
IMPORTANT! IR blocks within the HX Eects device's signal ow refer-
ence an IR by its index number (1-128), not the actual IR le. For example,
if you happen to replace or delete "IR 12" from the HX Edit application, it
will aect any presets containing IR blocks with "IR 12" selected.
Impulse Response Settings
Page Knob Parameter Description
1
1 IR Sel
Selects one of the 128 available IR index locations. As
you turn knob 1, you'll see the le name of the IR .wav
le that resides within the IR index slot.
2 Low Cut
Filters a portion of the IR's bass and/or treble frequen-
cies, which can help remove rumble and/or high-end
harshness.
3 Hi Cut
2
1 Mix
Blends the IR signal with the dry signal passed through
the IR block. When set to 0%, the path bypasses the
IR completely. When set to 100%, the entire path is fed
through the IR, and no dry signal is heard.
2 Level
Adjusts the overall output level of the IR block.
NOTE: Just like a true speaker cab, IR blocks are mono. Therefore, an IR block
will sum any stereo source that is fed into it to mono. See "Block Order and
Stereo Imaging"
Send/Return
Each of the Send and Return jacks can be used independently, or used in combination
as a mono or stereo FX loop.
FX loops let you dynamically insert your favorite external stompboxes (or rack eects)
into any location in your preset.
NOTE: Each Send and Return pair can be set for Instrument level (for inserting
stompboxes) or Line level operation. See "Global Settings > Ins/Outs"