Hi People

Some questions for the more knowledgeable than me

How many hifi items have balanced outputs ?

How many amps have balanced in's / out's , TT's not that I have seen ?, Cassette players , not that I have seen
Tuners ? not that I have seen ? R2R yes some have the 3 pin connecters but are they balanced ?

I have a CD player with balanced out's but dont have a amp with balanced connections

Is the sound quality much improved if you use balance instead of RCA's

Fanks in advance