As Line 6's Spider amp range is among the bestselling all around the whole world, the launch of the fourth series is big news. The range comprises smaller 15- and 30-watt combos, as well as larger, more advanced items, such as a 150-watt head and the 75-watter we have here. So what's the deal? 'We set out to try to improve on what is already an extremely successful product, without accidentally fixing what wasn't broken,' says Spider IV's product manager Scott Waara. 'We wanted to see if we could improve on what we and some of our customers perceived as not being our strongest points without altering the things that already work well. We carried out surveys and then just came back to the amp and tried to satisfy our ears and instincts. 'One priority was improving the mid-gain, edge-of-break-up tones. Suzuka Sub Indo Download.