User Manual
32
Mic Models
Model Based On*
57 Dynamic
Shure
®
SM57
409 Dynamic
Sennheiser
®
MD 409
421 Dynamic
Sennheiser
®
MD 421-U
30 Dynamic
Heil Sound
®
PR 30
20 Dynamic
Electro-Voice
®
RE20
121 Ribbon
Royer
®
R-121
160 Ribbon
Beyerdynamic
®
M 160
4038 Ribbon
Coles 4038
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 EarlyRec
Setstheamountof"earlyreections."Highervaluesaddmore
reectiveroomsoundtoyourAmptone.
6 Level
Adjusts the overall output level of the Cab.
Impulse Response (IR)
Impulse Responses are mathematical functions representing the sonic measurements
ofspecicaudiosystems(forHelix,speakercabinetandmicrophonecombinations).
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 down-
load from line6.com/software.
1. Connect Helix 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 hardware's IR list automatically. Helix 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 HelixappallowsyoutoimportIR.WAVles
ofdierentsamplerate,bitdepth,lengthandstereoformat,andtheappwillconvert
these attributes automatically before sending to the Helix 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
ofthele,oramixofbothchannelsfortheHelix(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!IRblocksreferenceanIRnumber,nottheactualIRle.For
example, if you happen to replace or delete "IR 12" from the Helix applica-
tion,itwillaectanypresetscontainingIRblockswith"IR12"selected.
*See "U.S. Registered Trademarks" on page 35. All product names are trademarks of their respective owners, which are in no way associated or aliated with Line 6. These product names, descriptions
and images are provided for the sole purpose of identifying the specic products that were studied during Line 6’s sound model development.