Problems with my K5LA

hello
I write in this forum using the google translator because no English, so I apologize if something is not understood …
A few months ago bought a Nathan horn kit airchime K5LA and until last week I could not ride. Once assembled the kit I find that the compressor loads the tank to 150 psi, and the horns sound strong but not the tone I should have. I put the kit with the material sent to me, with the solenoid and the black tube half. I ask for help in finding the problem, since I’m not sure if it’s for lack of airflow or a problem with the membranes. Remove a horn to view the status of the membranes and appear to be in good condition. I have also looked at the solenoid and it seems to open fine. Could you please advise me of what might be wrong. To give you a short video where the sound comes out and a photo of the installation of the compressor.
Thank you very much in advance and greetings from Barcelona, Spain.

http://www.youtube.com/watch?v=Nev19r_dn-4

http://img504.imageshack.us/i/img3953qb.jpg/

http://img688.imageshack.us/i/img3945f.jpg/

Number 1 bell, biggest bell is too close to exhaust, and need to take off those horn covers.

Welcome Housemory.

Like Curt said, it sounds like the horn is vibrating the exhaust or side of the vehicle too much and the exhaust is in the way of the sound

You need to take those covers off and she will scream!

Okay, I removed the cover and separate the exhaust and the sound is expected. Thank you very much for everything!!!
I would like to ask another question, there are differences between having a pressure of 150 psi to 200 psi have the power or the tone of the horns?
Greetings!

^ The horns will be a little louder, but a little higher pitch as well. I enlarged the inlet holes on my horns to achieve a bigger punch. It worked great!

Okay, take this into account. I put a video of my horns sound like after he had removed some of the exhaust pipe. Greetings!
http://www.youtube.com/watch?v=ElYIqt0__-g

Sounds great! And loud!

200 psi does not sound good on American tuned bells.