So here’s the finished guitar amplifier:

The new Bluetone Crossroad 2+2 amp head is fitted inside its cabinet, and Bluetone’s game-changing wifi-software is up and running smoothly.

Bluetone’s wifi-protocol makes it easy to check and readjust the tube bias on your amplifier’s power tubes. No engineering degree or special tools needed – you only have to have a mobile device or computer to hand.

The amp head is accessed as a web-address. The correct bias values for the power amp valves fitting your amp are listed in the owner’s manual. All you have to do is to type the new bias values into the correct fields, and save them by pressing the ”Change Bias” buttons.

This is what the finished half-stack looks like. It has already been taken home by its lucky owner.

Contact: Bluetone

The time-consuming process of hand-wiring, assembling and soldering the innards of the new Bluetone Crossroad amp head was practically finished by the start of last week. The only thing still missing was the software to run the wifi power valve biasing (the traditional, hardwired bias adjustment already worked, of course).

This is the way a custom-made guitar amplifier should look on the inside – exemplary workmanship and top grade components.

There was still a tiny bit of adjustment work to be done on the metal chassis to make it fit properly into its cabinet.

When all is finished the control panel should be flush with the cloth grille.

From a tonal perspective the Crossroad-head was all dialled-in, thoroughly checked and rearing to go. Matti and Harry gave me a run-through of the sounds offered by this amp’s three channels, and I must say it sounded fantastic!

Only a few hours after my visit to Bluetone’s HQ, I got a message from Harry that the wifi-application had arrived for inclusion in the head.