Some MTDs are very bright and some are not - it really depends on the individual bass. I much prefer MTDs that fall on the warmer end of the spectrum and sound a little more "traditional".
Yes…A lot depends on the wood combinations that are used.
I also have some problems “taming” my MTD’s (ash/maple/ebony) tone at times. It kind of can be a love-hate type situation sometimes. I just crave that “traditional” tone more and more frequently now.
I’ll have to look into having that passive tone option possibly added to my bass by Mike, or maybe another MTD in the future.