So I recently purchased the Fender Bassman 500HD from Sweetwater, and this evening took it for a test run with my Lakland Skyline 44-51 and my Aguilar GS 212 4 ohm cabinet. First off, aesthetically this amp takes the cake, very cool look and in a very light package. All of the controls worked well and obviously with the Fender tone stack you're adding and subtracting things along the lines of bass and treble. I could definitely get the tones I was looking for, but I found that volume was a bit of an issue. Having typically played out of a Tonehammer 500, I feel like the Fender was lacking in power. I found too that the more I rolled the tone up, the seemingly louder the bass got, and as I rolled it off I lost a lot of volume. The bass itself is fairly new, and I've never had that issue until tonight. Curious if there's anyone out there that may have an explanation for what seems like a lack of volume, and the tone effecting my volume.