[blogfellito11]

My Budget is limited, I am a university student, i love the music and I want to create my private studio

 

[Roseval]

Take your pick: https://en.wikipedia.org/wiki/Horn_(instrument)
or rephrase your question

 

[motberg]

My Budget is limited, I am a university student, i love the music and I want to create my private studio

I am not sure if this is what you are looking for, but sometimes "bocina" in Spanish translates to "horn".
But actually "bocina" is frequently used for "speaker".
So maybe you are searching for "stereo speakers", or for a recording studio (estudio de grabación) speakers are often referred to as "monitors".
Hope this helps, and good luck!