Hey , hope you enjoy your new amp. Ive had my rectoverb for about a month now and loving it. Ronnie has a great setting for metal like you asked. Id like to throw my 2 cents in also. I have found that the mid and treb knobs play a large roll in this amp. First on the modern channel lower it way down to around 7-9 oclock,,nice. On the vintage channel you can get many different sounds you may like that you wouldnt think would be there. Try lowering the treble knob on vintage all the way down and you will find you get more treble,,,hard to explain? its not what you would expect to happen,, but Try it out. Also a very nice mode to try metal is the pushed mode with the gain cranked. It took me a few weeks to understand a lot of the sounds you can get out of the amp. P.s. try out an overdrive pedal in front of the amp like an xotic bb preamp.. real nice