A great amp always has a certain something. More than just great tone, it has dynamics that breathe life into every note and give punch to every chord. With THR amp heads, Yamahas engineers have captured the component-level interaction between the speakers and the power amp (the murky world known as the damping factor) and tuned it to perfection, achieving a new level of performance excellence, even at low volumes. Dont worry about hearing the difference youll feel it as soon as you plug in and play.

MODERN
An American-modded version of the Lead amp-type, slightly more saturation and smooth, fluid overdrive

LEAD
Medium-gain British tone with rich, controllable overdrive and great definition

CRUNCH
Low-powered, bright British tone with soft touch and chiming high-end

CLEAN
Warm, rounded American tone with late breakup and incredible dynamics

SOLID
Clean, solid-state amp for zero breakup at any level

6V6
Warm, soft, round sound with rich harmonics and easy distortion

EL84
Smooth feel with soft, tactile, harmonically rich response and a pleasingly musical top end. Widely used in modern class A amps

KT88
Big, clean, tight sound with outstanding headroomgreat for rock, where more pronounced note definition is desirable

6L6GC
Strong, pronounced midrange character and bright, clean, powerful punch. Commonly associated with American guitar sounds

EL34
Pronounced midrange, tight low end and crisp treble. The most recognisable British guitar sound

*THR100H Dual/THR100H do not incorporate physical tubes in its design. Instead, it utilizes Yamahas VCM Technology to faithfully reproduce the characteristics of each of these tube types.

Belying their awesome tone, stage-ready volume and the playing experience of an amp full of glass tubes and transformers, THR head amps tip the scales at under 5kg. We guarantee youve never come across an amp as lightweight and compact that sounds like such a heavyweight.

THR amp heads come equipped with an assignable booster that can be engaged direct from the amp or via the dedicated footswitch. With 3 incredible sounding VCM boosters, from a clean solo boost to a smooth overdrive, all selectable via the optional utility software, the THRs boost function is ready to push your tone to the next level, right when you need it.

Any amp only sounds as good as the last link in the signal chain and in a great sounding rig, thats usually a cabinet and microphone. THR amp heads use impulse response speaker simulation to drive a DI tone thats indistinguishable from a perfectly micd cabinet. With simulations of a range of industry-standard cabinets and mics available via a USB connection with your PC, THR amp heads give you a host of options straight out of the box. But it doesnt stop there you can use any IR file available online, taking advantage of a huge community of tone-hounds creating custom impulses for download, or even use third party software to create your own. The difference in tone can range from subtle to significant, and the possibilities are endless.

Supported IR File Format
File format: .aif / .aiff / .wav
Bit Depth: 16bit / 24bit / 32bit Integer
Channel: Mono / *Stereo (*Only usable either one channel)
Sample Rate: 44.1 kHz
IR Length: 2048 points

THR amp heads are equipped with XLR line outputs for connection to professional recording or live sound equipment. The speaker outputs dont even need a dummy load, so you can disconnect your speakers for silent recording or on-stage performance without having to worry about damage to your amp.

The controls on THR amp heads go back to basics for quick, easy manipulation of your sound. An instantly familiar control layout along with intuitive response and interaction thanks to VCMs component modeling, means that dialing in your sound is exactly like you expect it to be. No menus, no options, no hidden functions. Just plug in and play.

An included dedicated footswitch is available for each model, giving you the control you need at home, in the studio or on-stage. With access to boost, reverb and FXloop functions, plus A/B/A+B switching for THR100HDual, everythings right where you need it. Industry-standard 5-pin DIN MIDI connectors even allow you to replace and extend the cable easily and cost-effectively.

THR amp heads come equipped with USB functionality that lets you connect to your computer for quick and easy configuration of the on-board reverb and booster effects, switching between serial and parallel effects setups, and uploading of IR data files.

Almost all of the classic tube sounds of the last few decades have been a product of the synergy between a high-quality amp head and a dedicated speaker cabinet designed to complement the unique sonic characteristics of the amp. The THRC112/THRC212 are no different, and have been crafted and tuned specifically to accommodate the versatile amp, speaker, and valve simulations of THR amp heads.