User Manual

Table Of Contents
30
Mic Models
Model Based On*
414 Cond
AKG
®
C414 TLII
84 Cond
Neumann
®
KM84
67 Cond
Neumann
®
U67
87 Cond
Neumann
®
U87
47 Cond
Neumann
®
U47
112 Dynamic
AKG
®
D112
12 Dynamic
AKG
®
D12
7 Dynamic
Shure
®
SM7
Cab Settings
Knob Parameter Description
1 Mic
Selects one of the 16 available mic models.
2 Distance
Sets the distance (1 inch to 12 inches) between the mic and
the speaker grille.
3 Low Cut
Filters a portion of the cab's bass and/or treble frequencies,
which can help remove rumble and/or high-end harshness.
4 High Cut
5 EarlyRec
Setstheamountof"earlyreections."Highervaluesaddmore
reectiveroomsoundtoyourAmptone.
6 Level
Adjusts the overall output level of the Cab.
Impulse Response (IR)
Impulse Responses are mathematical functions representing the sonic measurements
of specic audio systems (for Helix LT, speaker cabinet and microphone combina-
tions). Helix can load and store up to 128 custom or third-party IRs at a time.
Loading Custom IRs
Loading custom impulse responses requires connecting to the Helix application in
your Mac or Windows computer. The Helix application is available as a free download
from line6.com/software.
1. Connect Helix LT to your computer via USB and open the Helix
application.
2. Click the Impulses tab.
3. Drag one or more IR les from the desktop or any Finder win-
dow directly into the Helix app's Impulses list.
The Helix app updates the Helix LT hardware's IR list automatically. Helix LT can
load 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 Helix app allows you to import
IR.WAVlesof dierentsamplerate,bit depth,length andstereoformat, and
the app will convert these attributes automatically before sending to the Helix LT
hardware.
• Go to the Helix app's Preferences to set the preferred behavior for importing
Stereo WAV IRs - there you can choose to import the left or right channel data
ofthele,oramixofbothchannelsfortheHelix(mono)IR.
• The imported IR is automatically shortened (or lengthened) to 2,048 samples.
You may optionally choose a 1,024-sample version from the model list to
save DSP, which fades out the IR halfway through.
IMPORTANT!IRblocksreferenceanIRnumber,nottheactualIRle.For
example, if you happen to replace or delete "IR 12" from the Helix applica-
tion,itwillaectanypresetscontainingIRblockswith"IR12"selected.
*See "U.S. Registered Trademarks" on page 33. All product names are trademarks of their respective owners, which are in no way associated or aliated with Line 6. These product names, descriptions and images
are provided for the sole purpose of identifying the specic products that were studied during Line 6’s sound model development.