I have had the luxury of playing many different trombones. What I like about this horn is the sound and the comfort. This horn sounds like a trombone is supposed to. The size of the braces and the shape of the tubing in conjunction with the balance and weight of the horn make it a bone that will not tire me out.

I apologize for claiming in my 5 Star review that the 4501 is a "dual-bore" horn. It is not. In fact, it is a .500in standard-bore bone, however this is the only correction and all else in review stands as written. I do love this horn....

I am the least qualified trombone player and reviewer to judge or deserve the pleasure of playing this instrument. Hadn't played trombone for fifty years after disappointing parents, band director and band mates, quitting it in HS for sports, college, medical school etc. etc. Bought my TR4501 after three months as a 'recovering trombonist' invited to join my town's band. After discovering long lost skills with a borrowed Conn H48, trying other new and used Conns, Kings, Yamahas, Blessings & Bachs at garage sales and music stores I bought an Urbie Green on the basis of the reviews and its design without even touching one.I just love this thing. It has a character, a feel, a "soul" to it which speaks to me and, I swear is teaching me to voice its song. My new bandmates do not believe I haven't played for 50 years. Play this horn and see if your musical soul may find voice in it, too.

This Urbie Green model (4501)is: 1- high quality; 2- beautifully designed; 3- lightweight; 4- well-balanced; 5- nicely detailed (Note curved handgrip, SOLID slide grab rail & wide rubber bottom slide bumper that looks great & is a nice touch, not metal nippled like most). 6- a dual-bore slide tube design and I love the solid metal grab bar. I am spoiled by smooth, quiet and responsive glide slides and this bone has it; 7- bright & earthy toned throughout and gives me smooth transfer up & down the registers. 8- I like to blat & splat down low and this bone vibrates. Gotta love it.... 9- The small shank cupped Bach 12 mouthpiece is complimentary and well-matched. 10- The spit valve is responsively sprung & tight with a nice long lever; 11- as for the case- not the best I've had (room for mutes & music mainly), but is well thought out & sturdy, plus, you can access the storage bin WITHOUT having to unstrap the bell section! The whole assembly lifts right up. Another nice touch. 12- I strongly recommend using the two component Slide-o-Mix slide lube. It is the highest quality treatment I have EVER come across! It's a German product and it makes a great slide better. I couldn't believe the difference over silicone or other treatments I've tried since 1962. It cost me about $13 bucks. I have tried out vintage horns, the King 2 & 3B's (Standard and SilverSonic), the Vincent Bach Strad family (12 & 16 and the LT16M) and frankly, I was not romanced by any of them. Don't get me wrong. These are fine expensive horns, but I figure you have GOT to absolutely fall in love with such a costly bone and I didn't. Anything that comes in contact with my mouth had better give me a thrill and this little Martin cutie did it at first sight and blow. I have worked with first rank symphony and opera orchestras, and have many friends in the business. So I am accustomed to live, un-miked instrumental sound, tonal quality. I have been looking for the right horn partner for 2 years and I feel I have found her at last. Worth the wait.......

I have played King, Bach and Conn for many years. The "urbie Green" trombone is better than all of them. The slide is amazing, the tone is smooth, but bright when I want it to be. No matter how hard I blow the horn can take it and asks for more. The partials slot very well. I don't think one can go wrong with this horn.