Is a .525 bore considered a small bore tenor trombone or not? also what are like the standard bore sizes for large and small im looking to purchase a smaller bore tenor for some jazz.

A .525 bore is considered a medium bore tenor. Small bores are usually closer to .500, give or take.

is the Conn 52H a small bore? if not do u any reasonably cheap small bore tenors like range of 500$-1500$?

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also would a medium bore tenor be good for some jazz and solo work...I'd rather have that small bore though

the 52H is a dual bore.. .525 on the top tube and .547 on the bottom
A dual bore can work in jazz and big band, but if you're playing with a bunch of guys on smaller horns it will be hard to blend.
Consider a used King 3b, 2b, or even just a yamaha ysl-354. Can't go wrong.

k thanks just i need some less pricy bones cause im 14 and payin for this by myself i have saved up like 1100 but my parents might chip in a little also

Also i can't seem to find any used 2B or 3B Kings...do u know anyone selling?

I took a look at the Yamaha...seems nice but those Kings look amazing and got great reviews. I really dont have the money for a new one and i wish i did. Anyways would you really recomend the Yamaha? Even though its a student horn and also would it be good for jazz?

keep your eyes open on the trombone forum classifieds..
classifieds.tromboneforum.org
always horns for sale, usually by trombone players as opposed to people who have no idea what they are selling. Finding a 3B in your price range shouldn't be a problem.

an example
http://classifieds.tromboneforum.org/detail.php?id=3111

Hey is the King Silver Sonic a small bore also??

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Also, about the Silver Sonic...i found one on ebay for around 1000$ and i was wondering what type it is if you could just illustrate the concept of that horn thanks. One more thing, there was this old 1957 liberty king 2b (http://cgi.ebay.com/1957-King-2B-Liberty-Trombone-Absolutely-Stunning_W0QQitemZ320327068360QQihZ011QQcategoryZ16216QQssPageNameZWDVWQQrdZ1QQcmdZViewItem) Can u also tell me about that one its 1100$ thanks again Steve ur very helpful

the silver sonic horns are the same as the laquered brass horn, except that the bell is made of solid sterling silver and sometimes with some gold plating on the inside of the bell and on other parts of the bell section. I own a 4b silver sonic (.547 large Bore). 2b and 3b will be the small bore horns. 3b+ will be the medium bore (.525).

the only difference is the bell material...and as far as I know that's about it.

this is wierd i was just trying to figure the same thing out. I have a 52h too(great horn). I'm buying a denis wick mouthpiece but i can't decide between two modles: the 6BL and the 6BS. The only diference is that the 6BL is for a lare bore and the 6BS is for a medium bore. Wich one would fit a conn 52h?

The 6BS is a small shank mouthpiece and I think the 52H dual bore has a small shank mouthpiece reciever. Small or medium bore trombones use small shank mouthpieces. good luck!