Mesa Nomad & 4x12 3/4 back cab

I was just wondering what sound i should be looking for playing this ? This is what i use. It sounds good to me when i stand next to the cab, but when i walk out in front of it it doesnt sound good at all. should i adjust the sound standing in front of the cab ?

well, it depends, if you're planning on playing with the amp sideways to the audience, no...
Otherwise yes. You always want to consider how the amp is going to sound from where it's pointed at (your target). If you're practicing alone, it's allmost irrelivent, but if you plan on playing with other people or gigging, you really need to start setting your amp up to sound good in a jam space or out in a room.