Carving Up The Soundstage

This 1980 demonstration record for a Carver Sonic Hologram pre-amplifier from Carver Electronics Corporation is fairly useless, I suppose, without the actual piece of hardware that it was meant to promote, but some of the tests on side one are still useful for general hi-fi setup. I expect the conversion to mp3 totally ruins the Sonic Hologram (TM) properties, though.

These devices were designed to expand the soundstage beyond the boundaries of the two stereo speakers without going to a quad system (which was pretty much dead by 1980). Most online discussion recommends them for headphone use, as opposed to speaker use.

Carver Electronics Corporation ‎– Sonic Hologram (TM) Demonstration - Calibration - Test Record C-4000
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A1		Introduction
A2		Loud Speaker Phasing
A3		Internal Cartridge Phasing And Frequency Response
A4		Cartridge Absolute Phase And Electrical Balance
A5		Autocorrelator Adjustment
A6		Peak Unlimiter Adjustment
A7		Time Delay And Echo Density
A8		Trim Control
A9		Introduction To Side Two
B1		Sonic Holography (TM)
B2		Music
B3		Holography Encoded Music