Yes, you can!!! I have one of those amps and all you need is a volume pedal in the effects loop. You can buy them (best option), look up Audistorm Volume Pedal on Ebay, or make your own (bit fiddly), search YouTube for How to make a volume pedal for guitar in 3 minutes.I have ordered one of those. One question is still open. Can I play after midnight without disturbing my neighbours to the full advantage of the amp? Of course 0.5W setting. One sleeping room above and one to the right. Left und underneath are of no concern because they are living rooms. Daytime is less of a problem. Thanks!