There were no undertones on any notes, and every note was clear as a bell. I even pushed a VERY forceful fortissimo with all my fingers lowered (B/F) to TRY to get that edginess/squeek however wasn't able to get it. I was late for work because I didn't want to stop playing this clarinet. It felt great and I thought I sounded great.
This 601, the lowest cost pro instrument in their lineup, completely outdid my Buffet E-13 and those R-13's I tried out yesterday morning. This item is in the category "Musical Instruments & DJ Equipment\Wind & Woodwind\Band & Orchestral\Clarinets". The seller is "artalmauri" and is located in this country: GB. This item can be shipped worldwide.