FINALLY took the 90 min. drive up to Frankfurt Session Musik to check out the Sandbergs there. Here are a few unscientific observations of mine after playing a half dozen of them for an hour or so. It may seem a little pessimistic, but take it with a grain of salt; I'm an extremely picky player when it comes to the feel and sound of my basses!
After picking one up an jamming on it to get a quick feel the first thing I noticed was how unusually acoustically quiet it was compared to the basses I normally play. The store was pretty quiet, so there wasn't much audible distraction. The E string especially was hard to hear at all. This made me curious as I'm not used to this. So I picked up a workhorse bass like the one I'm currently playing, a 2012 Fender Am Del P Bass, and found the difference to be night and day. Hearing each note was effortless and enjoyable.
Back to the Sandbergs. I picked up and played a few more and found the results to be to one varying degree or another about the same. Hm, didn't go into any more testing than this at the time. There was much more I was curious about.
I picked up a P/MM and the MarlowDK Sig jazz bass to test side by side. Unfortunately, the setups on both basses were not optimal for my playing style, and they were strung with new SS strings, which feel exceptionally sticky to my fingers. I like bright nickels. Both were rather difficult to play for my style of playing, but certainly not as bad as any Guitar Center bass. Action was about medium, but the pickups were too low, necks were pretty straight.
I tried out the jazz first since I grew up on the jazz bass and it feels like home to me. This one felt pretty good, but it didn't feel like a jazz. For one, the neck was thicker than your typical 70's era jazz. It felt somewhere closer to a PBass to me. Not as thin near the nut. A medium C profile neck. The sound was really clear, very little of that jazz grit and grind. A modern take on the jazz sound for sure. Not my thing for a jazz bass. If I ever got this bass, I'd swap out the pickups in a hurry.
The P/MM model was a little more to my liking, surprisingly, although the configuration is rather strange looking to me. A P pickup screams vintage to me while the MM says modern. Interesting combo. I'm not a big fan of the MM pickup sound. I kept it either dialed 50/50 or straight over to the P 100%.
Mixed 50/50, it sounded very modern. If I closed my eyes I'd see soapbar pickups. Very clear with a warm low end and a little clacky upper mids and highs. It was alright. Not my typical thing, but I could see myself getting used to it. I like a little vintage grit when I dig in though. With a little EQ I might have been able to find it, but knob-dialing wasn't on the list of things to do that day. Just looking for the straight up sound of each bass.
The P was... unfulfilling. My current P is outfitted with the Fender Original 62 Pickup, and this thing is P heaven! A lovely bottom end and lots of meaty mids that really carry a band. The Sandberg P didn't have this vibe to my ear. It was clear and warm, but not ballsy, and less of that midrange grit. I think the less ballsy nature may be in part to the pickups being set a little low, and also maybe because of the low acoustic volume of the wood/components. Unfortunately, the sales guys were busy and since I wasn't planning on buying anything I wasn't going to make a guy give it a setup.
After that comparison, I played few more of the Sandbergs. Each one varied in weight and balance so much that I couldn't see myself ever special-ordering one. One felt like a tank, the next light as a feather, and another had bad neck dive, etc. My guess is their choice of wood and parts matching is not in the same league as your Lulls, Sadowskys, etc. and that's why (one of the many reasons) the much lower price point. Just a guess, naturally.
To top things off, I picked up a Lakland AJ-55 and the neck and action were superb! To me, Lakland has the feel of the neck down perfectly. 5 strings don't feel to wide or like a baseball bat, they're relatively thin for fast playing, but thick enough to keep the tone ballsy and substantial. Additionally, I played on a couple 2012 Fender American basses and felt equally at home in terms of feel. What's funny is that Fender is known for having a lot of variance in their line of basses and guitars, but the ones I've played from the last few years are MUCH more in line than the Sandbergs I played, where each one felt like it was made by a different builder. Hm.
All in all, I'm really trying to love the Sandbergs. I love the way they look and I love that they're German made. But I'm still on the fence. I think if I played enough of them and found the right one it could work. Most likely though, I'd be changing out those pickups in a hurry. I was not digging the ultra clear sound of these vintage-esque instruments. That's just my personal taste, though. YMMV. And there was no scientific studies done here. Just some casual jammin' and bass comparing.
For reference: the rig I was playing through was what I use at home, TecAmp Puma900 through a TecAmp S212 newer rear-ported version.