I've got a good deal on one of the discontinued combo amps BA300/115 and when I search for information about quality issues on these it's really hard to get any information. Anyone with experience of the power and sound compared to the old BA115? And what's the rumor about regarding some rattling sound in the cabinet when pushing the bottom a bit? To me that's an issue for most combos because of the compact size, but is it worse than the average combo? And why did Ampeg stop making these so quick? Any opinions are appreciated.