All of the legacy Breakaway products, besides Audio Enhancer, are no longer supported. You will want to check out BreakawayOne
http://www.breakawayone.com/
It has a trial mode for everything. Try before buy. 🙂
You'll need a soundcard/audio-interface with drivers that support ASIO*. You need this so that the latency, the time between input and output, will be lower than what you can detect as a delay in the sound.
You will also need to either set (in App/Service mode) the HD core you'll use to one of the low latency settings like so:
http://i.imgur.com/iqjABi2.png
Or enable (in Config mode) a Speaker Output in the HD core you'll be using:
http://i.imgur.com/xzypNCS.png
And then (in App/Service mode) set that Speaker Output to this patch point:
http://i.imgur.com/977sVwc.png
*ASIO4ALL is not actually ASIO since it's just using Kernel Streaming, so you'll be able to get lower latency by just using BaOne's in-built KS support