I just downloaded the free trial of Cubase Elements 7, and while the fader levels are moving and there seems to be active sound from audio/MIDI files I put in, I hear nothing.

I've done a lot of research looking for a solution and have found nothing helpful. I've come to suspect that it's an issue regarding ASIO or something.

I go to Devices> Device Setup > VST Audio System, and under the ASIO Driver window, All I get are two of my mics and "built-in audio". All three options produce no sound.

I'm on a Mac Pro running 10.9.3.

Any ideas?

UPDATE:

I installed Cubase onto my MacBook Air, and it's playing fine there.

I have a Technics DC Power Amplifier SE connected to the Mac Pro, and headphones/speakers are connected to the amplifier.

I disconnected the amplifier from the Mac Pro and connected it to the Laptop. It still plays from the Laptop.

Why would there be no sound from the Mac Pro? Everything is working on the MacBook Air, and my Device settings are identical (ASIO Driver is "Built-in Audio", VST Connections Output is "Built-in Audio", etc.).

I assume it's a problem with the output. Is it a problem with Cubase? With my computer? With my Core Audio?