I have being having trouble getting clarity back into my tone for the last six months. I currently run a Stingray 5 into an Ashdown ABM 500 head and Sovtek 410/Hatrke VX115 and have just been getting a muddier and muddier tone as I continue to rehearse/gig. I've tried all the tricks of upping the mids and highs, soaking the strings in alcohol and changing them weekly, even my BDDI hasn't been able to brighten my tone up enough to hear note articulation clearly. Until Wednesday night ... I turned up to our rehearsal space and another bass player's rig was there (a Hartke 3500 with a Transporter 410). I thought I would give the Transporter a go and kept the VX115 in the car for the night. The aluminum cones in the Transporter cab brightened up the tone just the right amount, even with strings that were on the way out. In fact, combined with my paper cone 410, the rig sounded fantastic - great bottom end with sweet clarity of each note. So now Im thinking of dropping the VX115 in favour of a Hartke aluminum 410. But which one should I go for? The 410TP sounded great on the night, but I have heard these are the budget line, and as such may have quality issues. Apparently the XL series are better, but does the addition of aluminum high frequency driver in the 4.5XL make it too bright/sterile? Please let me know what your opinions are of the Hartke aluminum 410s and what one you think I should opt for in this case.