diyJohn

So the setup you liked with risers was the angled ones. I have risers on mine but they are level. Thanks for the 5Y3 offer. I have a few, I think. I should have been more clear. The solid state replacement is simply for the variac run-up to 80 volts or so. It gives a more gentle run-up of voltage on the power supply capacitors than the tube, which would stay at zero volts for a long time and then come on suddenly with rising ac input. I wouldn't use the solid state for actual operation. John

I've pulled the RCA RS-193A off the shelf and will be putting it on the variac as soon as I can find my solid state 5Y3 replacement. Looks like I will have to do some work to adapt the non-standard input plugs, but this should not be a problem. Thanks for the encouragement. I'll let you know how it sounds! Erik, the risers mentioned in the last post, are those angled or flat?

So 4 watts is enough? I have this little amp from an old RCA console, 6BQ5 single end, that I have been wanting to try on something, but never had anything as efficient as the Heresy. It should be 3-4 watts. Can someone point me to the drawings for the angled riser? Thanks all for your comments! John

Don't need no steenkin' badges! Seriously, what size holes did you use in the plastic material? To match the driver sizes or larger?

Thanks, folks, for all the good suggestions. To summarize, it sounds like the angled risers were made to get the horns aimed at the listener and still get the bass reinforcement from the floor, which might also cause a little boominess. Placing on short stands may get them up to ear height but might require some bass augmentation. In answer to one post, mine appear to be walnut veneer. Was there a particular color of grill meant to coordinate with that option? With regard to grills, do they generally sound better without grills? I think they look pretty good bare. The construction is such that it wouldn't be too hard to make up a grill, though. John

OK, I'm new to Klipsch and will probably be asking lots more questions that may be obvious to many of you. Please bear with me. I appreciate the good help I've gotten so far. I got my 1978 Heresy's (no grills) hooked up last night and listened for a few hours. Not an optimum setup I'm sure; just an old Marantz 2220 receiver that was spare and speakers were too close together, listening to PBS classical on FM. I am happy to report that all six drivers seem to be making sound, and the overall sound was pretty good. Bass was a little shy but I expected that since the efficiency is fairly high and the box not too big. I tried them close to the wall and then out about 18" and liked them better out from the wall. Mids and highs were realistic, but the bass seemed a little maybe boomy, especially on male voice. Or maybe that was just the announcer using a tailoring network to make himself sound more manly ! This is just a first impression and may not mean a whole lot. Still it seems they are kind of low to the floor. The little built in stand, which is really short and not tilted, implies that they were meant to be floor standing, but the mid and tweeter are nowhere near ear level that I am used to with other designs. Are they really made to be used on the floor or would a good stand help? What positioning do you folks like for Heresy? What about the slight boominess I found. Is that normal? John

Thanks to all for the welcome and enthusiasm. So if I describe these as 1978 heresy, folks will know what that is? What is the significance of the 59 in the serial number? Also there was stamped into the wood, DKD on one speaker and DKL on another. Anyone know what that means? I am looking forward to getting them set up in a proper system, but I will have to move a few things around. I have heard that they are SET friendly. Any idea of efficiency? Thanks for the help. John

I was lucky enough to buy a pair of heresy speakers over the weekend. The labels are blank except for the signature of the tester (sun bleached?) but there are numbers stamped into the rear edge of the top wood, 59S387 and 59S390. What do I have? Any comments on driver types and possible improvements are welcome. These appear to be walnut veneer. Tops are pretty scarred up and one appears lighter than the other (again, maybe sun effects?). There were no grills provided. I haven't fully checked them out yet. More questions than answers... Thanks for the help. John