The original mono track is offered alongside a near - identical DD stereo option, the sole substantive difference coming during the abovementioned three - way tryst / double - castration, where an adventurously distorted soundmix (parts suggest a fetal heartbeat monitor) is rendered with more clarity. (filmfreakcentral.net)
I'd recommend avoiding this mix in favour of the alternate stereo option were the stingers — the film's ultimate raison d'être — not juicier in 5.1. (filmfreakcentral.net)
Watched sans picture, the film still has the chops to raise the goose pimples, though it's worth mentioning that the alternate DD 2.0 stereo option doesn't cut it in the same way. (filmfreakcentral.net)