Have used this outfit 25-30 years.
They have almost anything you might need.
Have no connection other than purchases.

http://www.mcmelectronics.com/

Also couple more idea's.
For house and your shop/studio.
Wifi may preempt some of the needs.
Good quality RG-6 video cables.
We've been in our "new home" about 8 years now.
Put empty conduits, bit larger for runs you might want later.

Also for your entire new project, home and shop/studio.
Install Spike/Arc/lightning suppressor devices on your main
power panel, and also especially on main power feed or panel
for you Audio studio.

They are about $40 bucks H.Depot or other places.
They install similar to a breaker, but usually external
next to your panels.

FrankB

Down The Street vs2015 12-03-2014
Win7, AMD QuadA8-5500,16GB,2TeraHD, Komplete 10
PG Ultra Plus 2016,Alesis 12USB, Sonar Platinum