I had a TRBII 4 string fairly recently. The neck was very wide, wider than a P bass, just. Quality was second to none, very well built and a comfortable bass to play-heavy though. Sounds are very versatile from the pre amp, quite modern-dare i say 'hi-fi' (whatever that means )...all in all though a great quality bass but there was just something about it that didn't quite do it for me, it didn't quite compete with my olde warm sounding Stingray or my 96 Corvette...not that it should but i thought its just not for me. Very glad i tried one though.