The consensus is that the Twenty Threes are a bit better, and can handle more power due to the larger woofer magnet. To me, it was very close, and I kept my Six's as I know their story and I'm the second owner.I am sitting here listening to a pair of 6's as front and 23's as rears powered by Sansui 3300 and a QS-800 for my living room system. I love the KLH 6 sound, its hard to say but I think the 23's sound better as much as want the 6's to be superior. I have not recapped the crossovers, and each time I start to think of the hassle I think how great the system sounds as it is. Love my KLH speakers! Craigslist finds, $75 for the 23's, $150 for the 6's. If you ever see them get them. Big soundstage, powerful bass, musical midrange.
I am sitting here listening to a pair of 6's as front and 23's as rears powered by Sansui 3300 and a QS-800 for my living room system. I love the KLH 6 sound, its hard to say but I think the 23's sound better as much as want the 6's to be superior. I have not recapped the crossovers, and each time I start to think of the hassle I think how great the system sounds as it is. Love my KLH speakers! Craigslist finds, $75 for the 23's, $150 for the 6's. If you ever see them get them. Big soundstage, powerful bass, musical midrange.

This is why I sold my Twenty Three's and kept the Sixs.Damn. I recently sold my Sixes because I had too many speakers and listen mostly to my Fives, but feeling regret after browsing this thread.![]()
This is why I sold my Twenty Three's and kept the Sixs.
Yeah I know, but my Sixs were my first re-veneer restoration project, and I know their history from the original owners wife.Glenn! Sold your 23's? Sacrilege. lol
Here I am looking for a pair of 23's....
Stacked Sixs is impressive. I did it a while back for a year or so.Yep...KLH Sixes were among the very best sounding vintage two-way systems and still hold up well today. I have a pair of Fives that I just finished rehabbing and they are terrific as well. I local AKer who owns his own vintage repair/resell shop had 2 pairs of Six's and when a customer was demoing one set I mentioned to them that they should entertain the thought of purchasing both pairs and stacking them,,,which they did end up doing much to the delight of the shop owner. I'm still hunting for a pair of Six's and I've seen them listed for around $100 in various condition as well as for the higher amounts already mentioned for refurbed ones.