Adding Tone Controls?

Bama, FWIW, you can lower the volume of distortion in the upper-mids and highs, but you still get distortion only on a slightly reduced level. Maybe not so good.

But, how do you know without trying first. Perhaps an equalizer or tone control, digital or analog, will solve the problem. Maybe not. It is the cheapest possible solution though. And for me at least, the choice would be the simplist one to use, i.e. it has the flattest learning curve and very simple to use. After all, the recordings are poor in the first place, what would be lost?

I have not challenged the sound quality of the equipment or the set up being used. (You didn't ask and it is good stuff.) But, FWIW, I think the synergy itself may produce a set up with overly emphasized upper mids/highs which passes amoungst many audiophiles as evidence of what the sound should be, but rarely that it is too bright, because it is so smooth when playing high quality recordings you accept the HF emphasis as being correct or consonant with live music.

Obviously when the OP then plays a lower quality recording the poor highs etc stand out like a sore thumb. This is a problem I think created by the industry professionals in making and marketing stuff. Everyone is demanding high quality resolution and the professional's response is often little more than elevating the sound of the high(er) frequencies either by using frequency responses or rise/fall times, i.e. speed, changing the natural resolution of the sound.

A couple of things about your system which caused me to bring this up. The speaker set up looks good but you have a lot of glass and hard wall surfaces behind your speakers which can overemphasize backwave sound and cause distortions.

I would put reflective/absorbant materiels on those walls/glass. Also you can change the direction of the back wave by toing in the speakers so that you are listening on axis. Then the back wave is bouncing off the backwall (or in a narrow room, the side wall) at an angle which will make its arrival at the listening position much more distinct from the first signal (I did that very successfully with Quad 63's).

I would also try some different cable, something not known (in a general sense) for its 'wonderful' delivery of the high frequencies. I used Nordost cables for a time - loved the 'clarity' until found that it really only over emphasized the extant highs of my system.

If you did those things, your first impression might be that you have just dulled down the overall sound of your system, and you just well might have done so, but consider whether or not the new 'sound' is dulled down or actually more realistic, i.e. sounds like real live music, not just the sound of high end audio.

FWIW I went through high quality analog tone controls and equalizers several times many years ago for just the problem you are trying to solve. I haven't used them in years. Their demise started with the conclusion that the sound I was experiencing was more because of my need to have 'face', by buying and implementing really high end stuff, inadequately I think, than it was to produce a sound that was consonant with what good sounding music could sound like in my home. I recall then getting a lot of admiration (of equipment) and a concurrent inability to produce what I considered high quality sound. (Now I get excellent sound and little appreciation. :-)

I don't know if this is of any value to you at all, but what the hell....and its free! :-)

Bad recordings should sound, well.. bad, played through an honest system. If its tailored to sound acceptable or good reproducing them, then a compromise or two must have been made somewhere to compensate this system's fidelity ie. system is suppress to lying.

To me, the OP has clearly stated right from the get go (then repeatedly) that his main concern is ONLY that of the lesser (bad) recordings, and NOT of the system's set-up nor its general performance (which he seems to be already very happy and contend with!).

Thus, I assume he knows fully well the capability of this system, and had identified the symptom/s and only looking for advice as to what medication best to remedy it.

Let's not undermine the OP's experiences and also of his hearing acuity. Just take it at that and shoot simple suggestions as to what we think best whether it be aspirin, paracetamol or..??--to get that annoying pain off his head as requested, instead of re-analyzing over his illness, and giving him more of it. :P

I think the OP has gotten several good and varied suggestions within the realm of possibility to consider.

I'm curious to see how things turn out.

Bvdiman, Normally I would agree with your sentiments. In fact in my first post I completely avoided comments of any type on other possible contributions to the problems he was experiencing and a couple of possible solutions. None what so ever. As I said, he had good stuff and said he didn't want to change the sound of his system and I thought 'nuf said.

However since that post, he has recieved all sorts of recommendations, some fleshed out, some not. For example, the toe in recommendation. Now toe in with electrostats/panel speakers can be a huge issue because of the back wave, a problem distinctly different from toe in with boxes. Box speakers have a broad dispersion pattern vs the narrow dispersion pattern (think fan shape v a typically figure 8 shaped) of panels & electrostats. I looked at his set up and his speaker placement was very typical for boxed speakers, not necessarily for panels or electrostats, obviously IMHO. I learned that the hard way - no one told me. It was free advise that someone might just find useful, and it costs nothing to implement. Then why not? I saw no reason to assume he would be offended.

Ditto, Nordost cabling. It has a particular reputation in the market regarding its sound that differentiates it from a lot of other cable. Was Bama aware? If so, no harm. If not, well it gives him something to think about.

His post on 11/28 was somewhat interesting I thought. On the one hand he thought suggestions by myself and others, to put some type of an equalizer in the tape loop were very good ones, yet he neither closed the correspondence nor sought further guidance in an area with limited potential for resolution beyond that done. He just complained about the rec's that were beyond his original request. Complaining about free advise is always curious to me.

This suggested to me that perhaps, even against his comments to the contrary, that fleshed out recommendations might cause him to re-think his problems and potential solutions. I thought I'd take a try at spelling it out a bit. If he already knows - OK. If he doesn't know, he learns. What's at risk, his ego? Why would/should we think that? I work on the assumption that only your friends tell you your fly is open. Others like to just stand back and giggle.

Why do I take the time to write two posts and even explain myself to you? It is because I am (and I would like to say we are) trying to help him improve his sound, even if we have to go beyond his request. That is what most of us would want if we were in the posters position. Pride disappearing in the face of constructive critism or honest observations is not an attribute I normally ascribe to folks who need help, validation perhaps. After all, at the worst we are all a bunch of assholes and he'll never correspond with us again, or perhaps he had a hole in his knowledge base that we have helped him fill.

Whatever....It is free after all.

Again, thanks for all the responses. In answer to a few of the comments, let me offer the following:

.... Youthful, high acuity hearing does not appear to be the issue - I'm a proud member of the boomer generation. My hearing still tests well, but not like it was back in my 20s.

.... Impedence issues between the CJ preamp and Pass amp were (and maybe still are) a concern. I raised this issue a while back on another forum and received feedback from several folks (including Kal Rubinson) confirming that the pairing meets the guideline that "the input impedance should exceed the output impedance of its source by 10x or more".

.... The photo of my system in my profile is obsolete, since we've moved to a new home. The new arrangement is similar, in that a group of windows (with some drapery panels) lies behind the speakers. The room is dedicated to the audio system however, so I do have as much flexibility as needed to try acoustic treatments. Rough dimensions are 14 ft wide by 32 ft long, with the speakers firing down the long dimension. Speakers are roughly 7.5 ft apart (center to center) and about 5.5 ft from front wall (to speaker front side). The listening position is about 13.5 ft from the speaker front. Slight toe-in (to cross behind the listening position). For what it was worth, I used a sound pressure meter in an attempt to position the listening position away from any obvious low frequency nodes.

.... Previous cables were Purist Audio Elementa. To my ears, the Nordost was an improvement in speed and clarity.

.... In a previous system, I used a hybrid tube/solid state ARC preamp (LS2), with a solid state ARC amp (D200) and dynamic speakers (Theil 2 2s). It seemed to be a good system at the time, but I'd say that crummy recordings still sounded crummy. The current system beats the previous one in air and clarity on good recordings but, sadly, still sounds crummy on the others.

I appreciate the added info on the DSPeaker Dual Core. I'll do more research on it. Christmas is coming!

Lastly, I'm appreciative of all suggestions. I was merely trying to focus the conversation. Perhaps the added info in this post provides more background.