Hi There: I used this in recording some bass tracks as well as guitar tracks. Very versatile little amp here! Looking to recoup some recent purchase funds, so I'm putting this Traynor Iron Horse 40 watt tube amp up for sale. This amp is still new ( still has that new amp smell!) and was used on a recording a few weeks back. That's it...! I have to say, this is a great little amp that can get some serious volume. It is very adjustable, and you can garner a lot of different tones out of this. Hats off to the Canucks at Traynor for this one...I am not a guitar player, but this thing impressed the hell out of me. Comes with a really nice padded gig bag as well. Here's some specs copied from the website: Hand Selected 12AU7 (x 1), 12AX7 (x2) and EL34 (x2) Tubes 0db and -6dB Inputs Selectable 4 & 8 ohm Outputs for Varying Cabinet Configurations Operates in Fixed Bias or Cathode Bias Mode Series Effects Loop Simple Gain, Bass, Treble, Master Controls Three Stage Clean/Pure/Solo Mode Switch Accepts Optional Two Button foot switch: Switch 1 = activate Pure mode Switch 2 = activate Solo mode All Metal Chassis Made in Canada And a video that gives you an overview 435 shipped in the US of A. Discount for local sale. International is cool, just let me know where. It might be a little more.