Hello Soundscape 
Your site looks neat.
But I personally feel that those speakers in the banner image don’t look too real
So because I
love good DJs and good electronica, I have taken the liberty of doing a 3D speaker model/image for you, which you can use in your banner
if you want.
This is a sample banner featuring the speaker models:
This is the speaker image which you can use [if you want]:

Just right-click and use
Save Picture As option to save it.
Note: This is a
PNG image with an alpha channel, which means when you open the image in Photoshop, you’ll see something like
this:

As you can see, it’s ready to be used with any background you create. To get the second speaker just use the
Image > Rotate Canvas > Flip Canvas Horizontal option.