One of the first 'modelling amps'. It includes quality FX, linked with MIDI storage. It still has much to commend it, not surprising given the time in R+D that went into putting this out. It's not always 'instant gratification', unlike a Kemper etc one needs to work to extract 'that' sound - but once there it can be stored and manipulated.
The 2 for sale are in the sidebar, with the links below:
Please read throught the above specification. It is basically a powered version of the Yamaha DG Stomp pedal, with all of its facilities (including the ability to deep dive into FX adjustments), coupled up to a 60w amp, 12" speaker combo. As with the DG Stomp It has 8 amplifier types built in with 2 variations of 'clean', 'crunch', 'drive' and 'lead'.
Individually accessible, fully adjustable (and crucially storable via MIDI) FX and various speaker sims also feature for live and studio work. These amps come further to life with a simple MIDI pedal to enable scrolling between stored groups of sounds while utilising the footswitch to work as 4 on/off footswitches for the various professional FX (unlike many beginner amps). In addition the foot pedal can accept a standard foot controller to for wah FX, volume, tremolo (depth, speed) etc.
Some commenters venture the names of what the preamps are based on, but I have never seem Yamaha stick its neck out, so take this as a 'ball park approximation' for an online review:
Lead 1 - Marshall
Lead2 - Soldano
Drive 1 - Fender Bassman
Drive2 - Fender Twin
Crunch1 - Vox AC30
Crunch 2 - Matchless
Clean 1 - Fender Twin Silverface
Clean 2 - Fender Twin Full Blackface As an aside the FX are genuinely useful, remember it's the same as the DG Stomp pedal developed with Allan Holdsworth. I find the 'compressor' and 'tape echo' slapback invaluable, as are the various reverbs + inbuilt cab sims. The modulation FX are of a similar pro standard + particularly well thought out (drawing on Yamaha leading the field in the 80s/90s with studio + guitar 'rack FX'). The rotary cabinet simulation, which can be endlessly tweaked to give the sound of high and low spinning horns, being genuinely impressive and arguably worth the entrance money alone.