Reviving this old thread.
Scored 2 pairs of KG4's at an estate sale last week. Excellent condition. Original owner. Fired up pair one with matching SN's in my main rig which consists of Pass Labs X2.5 preamp running balanced to a Bryston 4BSST2 with a Marantz SACD player and USB audio dac. Main speakers are Dynaudio Contour S3.4 LE's.
I positioned them about 7 feet center to center, 2 feet apart and set them on some inactive sub-woofer cabinets.
My mouth opened and hung there was I played song after song speechless at the impact, openness, upper frequency air, tone, and overall enjoyable sound that issued forth from these squatty music makers.
In some areas with some music they are better than the dynaudios, which is just incredible. What were they new circa 1988? ~400-500? Inflation calculator suggests that's about $1000 in today's money. The Dyns are 7x more in today's money. The do NOT sound 7 times better, lol!
I just received titanium tweeters and crossover kit from Bob Crites. Can't wait to try that out...
I am re thinking the high powered amp/ low efficiency speakers in favor of a Great tube amp or Nelson Pass First watt Class A 30 wpc and the Forte III"s...unless the KG4's are just the bomb and tamper the ol' upgraditis.