Before going into the details, I would like to point out that I work in the audio industry, and although I am not an engineer, I am surrounded by sound engineers and high quality audio products, so I understand that there are no free lunches, and that quality is expensive, and if I could afford high end products I definately would do, however... For around 15 years I have been doing rap music (vocals) with various groups and solo, and was actually enjoying some mini tours and festivals with a group until 3 years ago when I had to start travelling due to work. Recently this group has released a new CD. I did some colaboration work on this (including bass) and we came up with the idea that although it is not possible for me to rehearse with them to do vocals, it would be nice to do a live instrument show each time I am home (so once or twice every 2 months) with me on bass (which I can practice while away). This brings me (finally) to my situation! I have never done live shows on bass before, and although my GK MB112 is great for practice and recording, it is not enough for this... or is it? We always have PA support (sometimes our own, sometimes provided, depending on the size of the show. We also have our own sound tech, but this doesn't always mean we have subs). My main bass is a 4 string passive, but I have strung another active bass BEAD for a few songs where we need those lower notes, which to be truthful are only a couple, and I have purchased a B3 for effects (which I have yet to try). I also have a pair of Peavey PA speakers, and a QSC amp (300w per channel @ 4 Ohms, 2 Ohm Stable, Bridgeable), which I can use for my own monitors, but they don't go below 75Hz (HPF). So, after reading many many posts and threads, I have narrowed it down to the following options. 1. Keep the GK MB112 for stage monitor, and just go DI (from the B3 or the GK). This is obviously the cheapest solution, but does not guarantee that I will always be able to here myself on stage (sometimes monitors are not good) especially when moving around (this is a hip hop group!!). 2. Buy my own sub, and crossover, and use the QSC + Peaveys + Sub as my bass rig. This would be great for getting those low bass notes and effects, however my budget will not stretch to a decent sub, so I would be stuck with a cheap sub. My other worry is that the Sub may interfere with the FOH PA. 3. Buy a 410. Again, my budget will not stretch to a decent 410, so I am around the cheaper end of cabs (used is not an option where I live, as stuff is cheaper new online than used). I would be looking at something like a Kustom DE410, Hartke VX410, Fender Rumble 410, Laney RB410 or maxium and Ashdown MAG410T. However, this may also interfere with the FOH (or at least some people thought it might) 4. Buy a 115. I am not conviced this would work, especially on the lower notes etc. but I may be wrong! Maybe if I used a crossover and split signal between this and the peaveys, but then I may as well buy a sub. 5. Build a cab. This would be my preferred option, I would like a 212 with the same drivers that are in my MB112. However, as I said, I am only home for a week or so every 2 months, so by the time I finished... So there you have it, so many options, yet I cannot decide where to turn!! Other options, like buying a GK 212 or a fEARful (which I would love) are unfortunately out of my reach I miss the days when all you had to decide between was whatever the nearest music store had in stock!! Sorry for the looooooooooooong post!! Please give me your opinions, sush as... stop that rap crap and make proper music!!