Sabai, I will be more than happy to tell you everything I know about holography. First, Carver was not true holography. I've owned and tried almost every gimic under the Sun, none of them worked.
Let us compare obtaining holography to cooking a good recipe; you begin with the best products you can buy. I suggest perusing an old library of "Stereophile" magazines and selecting from the components rated "Class-A". You also may need advice in regard to "synergy". Kevin at Upscale Audio is always in a talkative mood. Although I have custom speakers I'm partial to Von Schweikerts.
A dedicated listening room is also essential. There must be space between the back wall and the side wall in regard to the speakers. The only area you can make a substantial savings, is on interconnects and speaker wire. Since high quality wire is a must, you'll have to get it from a speaker store or "Vampire Wire", but you can get it in bulk and terminate your own.
Once you get it altogether, you'll still need advice from your "guru" of choice to make it click; but when it does, you're in "audiophile heaven".