Browse Helix Models and Effects

Helix currently supports 72 amplifier models, 194 effects, 37 speaker cab models, and 16 microphones. On top of all that you also have the ability to load Impulse Responses (IRs) that you can grab from free or paid sources. Go have fun.

Recorded with a Les Paul Standard, Seymour Duncan Alnico Pro II pickup in bridge position. Default amp and cab settings used for tone sample.

The Plexi Tremolo 50 is a classic late 60's Marshall amp head. This is a great amp choice for classic rock and when that vintage Marshall grind is desired.

This model is for the preamp's normal channel.

Image source: reverb.com

mojorisin - Aug. 25, 2019

I believe you have the image and description wrong for these "Brit Trem" models.

Line 6's documentation for this amp is somewhat confusing where they seem to have incorrectly applied JTM-45 to two out of the three descriptions for the "Brit Trem" variants. The one for "Brit Trem Nrm" is more appropriately designated with JTM-50. However, according to the release notes for v2.30 the "Brit Trem" is a model of a Marshall® Plexi Tremolo 50.  It's any easy mistake to make as the model numbers for Marshall amps over the years are super confusing. However, given Line 6's description in the release notes, the fact that they include a 4x12 as the default cab on their model and the icon they use is of an amp head rather than a combo amp, it's clear this is a most likely a 1960's era Marshall Plexi Tremolo 50W amp head and not a Tremolo 50 "Bluesbreaker" 2x12 combo amp.