I bought an Mbox 2 off of Ebay, which I'm trying to use to record some demos. I'm using it with Audacity on Linux, via the JACK sound server. When I listen through the headphones (via the Mbox 2 headphone socket) while I'm playing something on my guitar, it sounds great; however, if I record it in Audacity and then play it back through the Mbox 2 headphones, the signal seems a lot weaker. I can hear it if I really crank up the Mbox 2 headphone volume knob to max, but it's a bit of a nuisance and it's going to make it difficult to monitor properly while I'm recording. The playback sounds fine if I put it through my PC's built-in sound card.
I'm just wondering if anyone else has experienced anything similar with this interface, or has an idea of what the problem might be? I have the output volume set at max in Audacity, so perhaps there is something not set correctly in JACK? Is there some way I can boost the signal?