I've been looking for a new bass amp (love my LH500, but I'm looking for something a little lighter and with a different tone). A friend has let me borrow his GK MB500 for a few gigs and considering the success I've had with it and other GK heads, I was looking at a used MB800 in my area, but then a Carvin BX1500 turned up for a really good price. I've heard many good things about the Carvin heads, but have never had the opportunity to play one. I'm looking for a head a clean and articulate tone, but can still offer some tight/aggressive mids. I don't need any extreme gain (I'm using a Sansamp Paradriver for that), but the one thing that turned me on to the MB800 was how crisp and defined the top end was. To any Carvin user's out there, I was curious to how the BX1500 (or it's smaller brother the BX500) stood up to GK's MB line, and if the BX heads could dial in a similar tone.