The Boss GT-1 can emulate 27 different amps. They are named in a weird way, probably in order to avoid copyright issues. So far I have only found one list, that suggests the “real” names of the simulated amps. In this blog post Michael Rendon suggests what the names of the simulated ams could be.

The list is long – around 27 amps or so are listed. I have commented a few of the amps, and added links to articles about a few of them.

Rendon’s List

“NATRL CLN (NATURAL CLEAN)
An unembellished, clean sound that minimizes the amp’s idiosyncrasies, such as its trebly character and boomy low end.

FUL RANGE (FULL RANGE)
An amp with a broad frequency range and an extremely flat response. Good for acoustic guitar.

CB CRUNCH (COMBO CRUNCH)
Crunch sound that allows the nuances of your picking to be expressed even more faithfully than on conventional combo amps.

ST CRUNCH (STACK CRUNCH)
Great-feeling crunch sound that responds well to picking dynamics while retaining all the defining characteristics of a 4 x 12” speaker cabinet.

HiGAIN STK (HiGAIN STACK)
High-gain sound of a vintage Marshall specially revamped in a way that is possible only with COSM modeling technology.

POWER DRV (POWER DRIVE)
A straight drive sound that works well in a broad range of situations, from backing to lead. A sound like this cannot be obtained from any existing combo amp or stack amp.

XTREM LD (EXTREM LEAD)
A new type of sound that smoothes out the uneven frequency response that is typical of existing large stack amps.

CORE MTL (CORE METAL)
A large stack sound that has been tweaked extensively in the pursuit of the ultimate metal sound.

JC-120
This models the sound of the Roland JC-120.

CLEAN TWIN
This models a Fender Twin Reverb.

PR CRUNCH (PRO CRUNCH)
This models a Fender Pro Reverb.

TWEED
This models a Fender Bassman 4 x 10” Combo.
– Here I’d suggest that the modelled amp simulates the classic Fender Tweed (1948-1960). / petj

DxCRUNCH (DELUXE CRUNCH)
This models a Fender Deluxe Reverb.

VO DRIVE
This models the drive sound of a VOX AC-30TB. This is a sound that it suited to sixties-style British rock.

VO LEAD
This models the lead sound of the VOX AC-30TB.

MATCH DRV (MATCH DRIVE)
This models the sound input to left input on a Matchless D/C-30. A simulation of the latest tube amp widely used in styles from blues and rock.

BG LEAD
This models the lead sound of the MESA/ Boogie combo amp. The sound of a tube amp typical of the late ‘70s to ‘80s.

BG DRIVE
This models a MESA/Boogie with TREBLE SHIFT SW on.

MS1959 I
This models the sound input to Input I on a Marshall 1959. This is a trebly sound suited to hard rock.

MS1959 I+II
The sound of connecting inputs I and II of the guitar amp in parallel, creating a sound with a stronger low end than I.

R-FIER VTG (R-FIER VINTAGE)
Models the sound of the Channel 2 VINTAGE Mode on the MESA/Boogie DUAL Rectifier.

R-FIER MDN (R-FIER MODERN)
Models the sound of the Channel 2 MODERN Mode on the MESA/Boogie DUAL Rectifier.

T-AMP LD (T-AMP LEAD)
This models a Hughes & Kettner Triamp AMP3.

SLDN
This models a Soldano SLO-100. This is the typical sound of the eighties.

5150 DRV (5150 DRIVE)
This models the lead channel of a Peavey EVH 5150.

BGNR UB
This is a heavy distortion sound that models the high- gain channel of a Bogner Uberschall.

ORNG ROCK
This models the dirty channel of an ORANGE ROCKERVERB.”
– The sound emulates a “dirty” Orange sound experience. I guess that the emulation is a “general Orange experience”. But it cannot compete with a real amp. / petj

(here the very long quote ends)

My favorite amps

In “real life” I use an Orange Crush 35 RT as my home practise amp. Mostly I like the sound directly from my amp – as in no effect pedals. Here the modelling amps cannot compete.

Among the modelling amps in the Boss GT-1 I prefer the simulated Vox Amps. Add a dash of sustain and some slap back echo. I tend to prefer a 4×12″ cabinet – that is in my headphones.

On rare occations I add the Boss GT-1 to the FX-loop on the Orange 35 RT. Here the simulated amps should be turned off, since the real amp is the Orange. But then you have a plethora of pedals, effects, wahs, flangers, tubescreamers, and …