Whether you use pedals for your overdrive or just crank up your volume control, one great amp sound is where it all starts. Sometimes though, you want to take your sound in a new direction with something just a little different. THR amp heads feature a single-channel design with five distinct custom amp types from solid state through to modified high-gain, all tuned to sound amazing whether you want to get your drive from a pedal or your amp.

The choice of power tubes in any amp can make a vital difference. From the warm, soft, rich harmonics of a 6V6 to the pronounced midrange and tight low-end of an EL34, changing your tubes changes your amp. However, this can be difficult; selecting the right tubes, swapping them out and re-biasing your amp takes a lot of time and money, and it’s easy to get wrong if you’re not entirely sure of what you’re doing. THR amp heads feature new VCM simulation that allows you to pick from five classic tube types for any amp model with nothing more than the flick of a switch on the rear panel. You can even choose from the smooth compression, soft touch and old-school distortion of class A, or the tight bass response, greater headroom and increased dynamics of class A/B for each tube type.

"The Yamaha THR head is an extremely straight forward amp that not only sounds great but also provides an endless array of tone shaping possibilities. From classic tones we all know and love to ones that only exist in your mind, the THR has them all."

"The THR100 has quickly become my go-to amp. I'm impressed with its ability to dial in my favorite amp tones."

"Whether it be in the studio or live, I've never been left wanting more from my amp #THR"

"I've always loved my THR10,and now I'm able to use that same technology on stage with the THR100HD."

"The head and cabinet combination is an awesomely flexible touring rig. Dialing in good sounds on the head is quick and easy, it takes pedals well, it's loud, and it's light. In conjunction with the different speakers in the 212 cabinet, micing and splitting signals is a breeze. On one tour, when my keyboard amp broke, I used it as both the guitar and the keyboard amp and it performed perfectly. I am very impressed."

"The THR head is light enough to carry on a flight as hand luggage with all of the tonal goodies for large festivals. A game changer for me. 5 out of 5 stars."

"The Yamaha THR100HD is a game changer for me! An extremely affordable, easy to use and high quality sounding amp suitable for both live and in the studio! All of the classic sounds I require are there at my finger tips in one box! Great work Yamaha!"

"Classic and Boutique amps at your fingertips in an extremely mobile and vibey package! This amp records and plays beautifully and not for one second did I feel like I was playing through a modeled amp. It sounds exactly the way you expect it to and you can’t argue with the great tone. The verb is top notch, foot switch eliminates at least 3 go to pedals (boost,verb, & A/B/Y box), it has an fx loop, and it sounds great with pedals. More than any other amp I’ve seen, it’s a perfect solution for guitar players in church situations that call for either very quiet stages or direct input - and you don’t need a rocket science degree to use it! Just turn knobs and flip switches and get your tone at any level with a cab or the speaker simulation output. The cab rocks too!."