Bluetooth pairing, Mini to Taco
I have a Mac mini 2011 which states it has bluetooth 4 and a recently purchased Venstar Taco (wireless speaker) which states it has bluetooth 4. I have had no trouble and have been happy with the range when easily pairing with my iPhone 5s. I can easily pair this Taco with my 2011 Mac mini, however the audio stream isn't always steady and max range is maybe 10 feet. Right now I am streaming from my phone (next to my Mac) to the Taco which is 50 feet across the house and it is coming in clear.
Is the mini's bluetooth range diminished by the aluminum housing or is the connectivity range just so much shorter than a phone? What can I do to strengthen the connection range between the mini and Taco?