• THR Librarian 1
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THR Librarian

Store and edit patches on your THR amplifier directly from your phone or tablet!
Yamaha's THR series are terrific little amplifiers. Unfortunately they only have the ability to store 5 patches on-board. The only way you can access more than 5 patches is hook your amp up to a PC or Mac and install Yamaha's THR Editor application. In addition, some of the amplifier effects such as the compressor are only accessible through Yamaha's PC application.

Until now.

Introducing the THR Librarian for Android. Simply attach your Android phone or tablet to your amplifier using a USB On-The-Go adapter, and you can switch between patches and edit them right from your device.

What you need:


- An Android phone or Tablet that supports USB On-The-Go.
- A Yamaha THR5, THR5A, THR10, THR10C or THR10X amplifier.
- The USB cable that came with your amplifier.
- A USB OTG adapter. If your phone has a USB Micro-AB connector, you will need an adapter like this one: http://a.co/3mustjw. If your phone has a USB Type-C connector, you will need an adapter like this one: http://a.co/hSyMego.

The free version of the app allows you to test your setup and load the built-in demo patches. In-app purchases are offered if you wish to unlock the librarian and editor features (each feature requires a separate purchase).

The librarian feature allows you to download patches from your amplifier, rename and delete patches, import patches from .YDP and .YDP files, as well as share patches email, Google Drive, Android Beam, etc.

The editor feature allows you to modify all of the parameters available on your amp, including ones not directly accessible such as the compressor. The editor also changes in real-time as you adjust the parameters on your amp.

Note: This app is not affiliated with or endorsed by Yamaha Corporation in any way. THR is a registered trademark of Yamaha Corporation.

Category : Music & Audio

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Reviews (29)

Ant. I. Aug 28, 2019     

Good but missing something Overall this app is good does all I want it to except you can't adjust the overall volume output you can only adjust the master volume for the gain, otherwise I would have given 5 stars. It would be good to see the developer release an update which would allow for overall volume control via the app then this app would be complete.

A. G. u. Dec 25, 2018     

Great app, really straightforward to use but lots of control options. It would be good to have a few more library management options, like adding a label to all patches within a YDL on import and being able to select lots of patches easily if you want to delete several of them at a time. Really impressed so far though.

A. G. u. Feb 26, 2019     

it works perfectly. It does what it says it does. it's cool that I can tweak my amp settings from my phone. and I can even access the compressor. it really smooths out the sound. it would be nice if I could get into the effects deeper. but it does what it says it does. Well worth 8 bucks

Sim. T. Sep 12, 2021     

Bought a THR10C a few weeks after Yamaha started to distribute them in the UK and have thought of selling it many times due to the lack of flexibility of editing patches outside Yamaha's own PC/Mac software. This app really is a game changer. Works perfectly with an android tablet and a USBc to USBb cable to the THR. Editing patches and selecting patches in real time is so easy and patch changes, as far as i can tell, are instantaneous. The best 8 quid I ever spent in the Playstore.

Dou. M. Mar 10, 2019     

Just recently discovered that this was available. Tested it out and happily purchased the full app, which allows you to save patches. Works perfectly and allows easy access to all setting available via the Yamaha computer app. Nice simple and thought out UI that is easy to use.

Joh. H. Jan 13, 2020     

Just started using app. Works as intended, but Yamaha needs to fix cranked up volume issue when loading presets. Scares the brown stuff outta me each time! Even if master is at 0, the present overrides with 11 so it seems. I've had the THR10 for a while now. Glad I found this app, cause my laptop wont see the amp.

A. G. u. Mar 9, 2019     

Ever since I upgraded the app the amp can't connect. otg with a USB drive works fine so it must be the app. I have a paid version too. Please help. Works again, thanks support team.

Jam. M. Jul 10, 2020     

Better than I expected, better than the Yamaha app. The hotkey shortcut feature is great and allows you to rig up a "pedal" using a cheap USB controller.

Mic. L. M. May 14, 2019     

Works just like the pc app as it should. after all it is just a UI to change settings in the amp. Shame on Yamaha for not including this.

Mr.. S. Aug 13, 2020     

Absolutely love this app. I use it to connect to my THR10C with the cable. Very easy to use and better than the Yamaha software that I have to use on my laptop.

Joe. R. Mar 20, 2020     

Update : I changed the cable and now it works great!!! Doesn't work with Samsung Galaxy 10+. Worked well with Galaxy 8.

Ste. B. Feb 4, 2020     

Really great to be able to edit settings without powering up a bulky laptop. Good work and worth the price!

404. Jul 26, 2019     

doesn't connect to my amp for patches. i used a usb cable to connect to my phone but it wont sense my amp is connected. wasted $8 on this.

jos. a. Nov 3, 2020     

Awesome was thinking of getting rid of the Amp because there's too many settings now I can set it and save them keep up the good work thanks

Ala. B. Mar 22, 2020     

Bummed THR 11 not supported! Why???? The amp has been out for months and still not supported. Ugh!!!!

Syl. D. Sep 29, 2020     

I use it with both my THR10C and THR10X and absolutely love it. I can't wait until I'm finally able to use it with my THR10-II.

Dan. T. Feb 18, 2021     

Excellent. Also allows you to run flat with a cab. The cab IRs on this are exceptional

Ste. C. Sep 9, 2020     

Connected to thr10c but the app says the amp is switched off but it's on

Los. P. Oct 3, 2019     

Works as it should, no problems a little expensive but worth it, five stars.

Ang. M. Mar 2, 2019     

releases the power of thr without the need to drag around a laptop

Kol. K. Nov 14, 2019     

Does it applicable for thr 5, via bluetooth adapter?

A. G. u. Mar 23, 2019     

my app wont seem to detect my amp i have a lg q6 with a otg cable

Nit. J. P. Dec 13, 2019     

How do I connect my Thr5 to my phone? I have a USB-C port on my phone.

And. G. Apr 12, 2020     

Why isn t Yamaha giving this for free? Everything is for purchase here..

Jam. V. Feb 15, 2021     

Love it with my thr10x

A. G. u. May 9, 2018     

This is truly a must-have app if you have a thr series amp. I have two... Perhaps I can't find the feature, but it would be great if there was a way to swap libraries, right now I have all the patches for my thr10 in the same library as the ones for my thr10c.

DJ. .. Apr 14, 2018     

This is just brilliant. It untethered my THR5A from my computer, and let me use the full capabilities of the amp interactively in an environment. Couldn't be happier. Yamaha should have put an app like this out at the start. Thank you to the developers

Tim. M. May 18, 2018     

Pretty cool app. Bluetooth would knock it out of the park. I am using an Android phone so I use an adapter to get the standard USB to match up with the smaller USB on the phone. I tried to find a cable that would connect the phone to amp without the adapter but was unsuccessful.

54m. Jul 12, 2018     

Complete fail. Has not worked, keeps telling me the amp is not connected.