Guaranteed spatial accuracy, straight to your headphone of choice


Accurate Audio Reproduction

Crossfeed is an essential part of human hearing. Our ability to hear sounds accurately in space largely depends on both ears working together receiving sound at different times and different levels. Using digital signal processing, Crossfire applies these concepts to create a realistic spatial listening experience. Crossfire works for all headphones and in all major plugin formats for use in a DAW.

How it Works

From a psychoacoustic perspective, the way sound travels from speakers to our auditory system differs from how it’s delivered by headphones. When listening in the free field with speakers, sound from the left channel will be heard first by the left ear and then by the right ear at a slight time delay and vice versa. It is important to note that the sound that travels to the opposite ear will arrive at the eardrum filtered with mostly low and mid-frequency energy, a phenomenon known formally as the shadow effect of the head. The perceptible difference with crossfeed is an enhanced and natural sounding stereo field and soundstage.

The Science Behind Neptune

Key Features

  • Realistic Crossfeed Emulation featured in Neptune
  • Linear Phase Mode
  • Zero Latency Mode
  • Bass Boost Mode
  • Stereo Input and Output Meters with Clipping Alert Lights
  • Resizable Interface
  • GPU Powered Graphics Acceleration
  • Available in Major Plugin Formats for use in DAW


All Bullseye Audio software is available for Windows 10 as 64 bit and for Mac OSX 10.10 or higher.

Plug-in formats

All plug-ins are available in VST3, Audio Units, and AAX formats.