Like the Spider IV 75, the Jam has the same 12" speaker and wattage. So why the Jam.
The big picture... because it will allow you to record.
It has Jam tracks pre-loaded, all jams are real pro’s playing in studios, not computer generated beats.
Because you can play at the same time the jam plays, you can also record both. You can plug a mpe3 type device using the 1/8 connecter. Play whatever you have through the amp and jam along and record it. It holds up 24 minutes of cd quality recording.
At any point you can go back record another layer over the last. I think it has 99 layers.
The amp also has a 2nd input area. It has a mic jack and guitar input type jack. So after recording yourself playing using 3 to 7 tracks, you can plug in a mic and sing while the amp plays a recording you wanted to sing to or you plug a bass or piano and jam over recording adding yet another layer.
You can record yourself playing chords. Record a lead over the rhythm you just recorded…. You see where I’m going with this. It will record or save your music to a SD card in different formats. Once on the SD card delete the recordings you have from the Jam freeing up room to start again.
Ok, so I like my Jam and what it can do with it.
Check it out on youtube, Line 6 Spider Jam.