Klipsch Heresy IV

I certainly agree with the draw backs of rear porting, the bass extension over the III will mainly come from the port. But there are creative ways of reducing rear port interference.
However, as I recall with the III’s they needed at least 2-3 feet away from the walls to sound their best.
Usually that’s sufficient for rear ports. If not, some creative damping can help as mentioned.
I once made a small l shaped holder for a 2" thick piece of fiberglass wrapped in a tick, it held it about 3" from the port, and nulled the rear wall interference.  Much also depends on your wall and floor construction/type.

jacques19602 posts01-24-2020 7:19am"I had the opportunity to listen to both the Heresy IV and Forte III yesterday, putting both through their respective paces with a playlist of Al DiMeola, Rob Wasserman, Alison Krauss, aria from La Wally, Japanese Drums, Don Shirley, Ron Carter, Brad Mehldau and Sade; short of teeing up Zeppelin, it was a diverse playlist. Frankly, I was disappointed by the Fortes in comparison - the Forte midrange was not as supportive of vocals as that of the Heresy".


This does not surprise me. The Heresy was more of a specialized midrange speaker anyway, so why vocals would be expected to sound more coherent in a Forte wouldn't make much sense IMO. 

I own the Heresy IV, reviewed them on my website and on YouTube. These speakers are a huge improvement over the III (I owned the III and enjoyed them). The IV are way more transparent, more wide open, have a huge soundstage, image amazingly well, and the bass sounds about 10hz deeper. Still sounds like a sealed design and bass is tighter and more plentiful than ever. Makes the Heresy a much more balanced sounding speaker but the start of the show is the Midrange. Like velvet with actual texture to the human voice. 

They are crazy good. Can play soft or loud as thunder and do both equally well. They are much more refined and sound like a true Hugh end speaker. I sold my Dynaudios after getting the HIV as they were just so much better doing the "live sound" thing. These are not forward nor do they sound like old for speakers. Build wise they are gorgeous and have the updated metal speaker binding posts. The high end is more extended and has more snap than the III's as well. 

I adore these and have been listening more than ever. I attribute that to these speakers. They really do breath life into the music. I suspect these will end up being very popular once people start to hear them. 

If any substantial improvement has occurred with the IV redesign (and I do expect there has) I'll likely have to get a couple of them suckers as the IIIs have been such a pleasure to have around the last couple of years. They surprise me every day really...

I picked up a set of H3's last Dec (2019) and am really enjoying them. now the 4's are out at double the price yikes.... they better be better. may have to sell my 3's and get the 4's I wanted a wood finish aposed to the black anyway.... haha yeah that's the excuse I'm using.

glen 


I'd may look at the H3's mods though first.