AndrewJohn

Welcome, and pictures are always good..., Unlike the "rules" of some Carver-named Facebook Groups, we are pretty flexible - but as noted above by previous responders, location and ask price is helpful - and you might get some offers. Location (city or zip code) helps people calculate add'l cost for shipping if they are not co-located, or could get you a local buyer that might want to come over and check out your equipment. People here won't be shy about helping you align price with actual value. There's a forum topic just for listing selling and buying..., check it out in the home-page index, see an image of that part of the index, below..., you get to it on the home page, and scrolling down to the section called "Trading Post." FWIW, Karma is where people can also give gear away..., Read a few posts there, and you'll get the idea. I circled "Novice" because you're new here, and the thoughts above about building trust by participating in TheCarverSite help you get out of that secion - to the Members gear (FS/WTB) section. ESCROW is a good site to check out - and, alternatively, some folks will list their gear on eBay, and just include a link here in the For Sale forum topics. Again, Welcome to TheCarverSite!

@aaron1anderson, welcome to the site. Just a bit more info on tuners..., as you make your choice. What Sk1bum offers is a great option. The TX-11a is more desirable over the TX-11 - they are more different internally, than just "one has AM, the other does not." The TX-11a has AM, and FM, and is considerably better electronics. Both the TX-11 and TX-11a have silver faceplates. If you want a black faceplate - the TX-11b is one step above the TX-11a (it was considered top of the line over the TX-11a, AND it had a black faceplate to match the black faceplate amps of the same era). Alternatively, the final production Carver tuner was the TX-12. It has a black faceplate, and looks different with an analog signal strength meter (over the LED strength meters in the TX-11 and TX-11a. AND, for my liking, the TX-12 has a remote control. Very late in production from Carver Corp came the TX-8 and TX-8r, significantly miniaturized and in the "slim-line" format chassis. The only difference between these two is that the TX-8r has a remote control, the other does not. The manuals with pictures of these models are in theCarverSite manuals library in the menu at the top to get more specifics as you choose a tuner. I have had every one of these tuners, and have settled on the TX-11b for my liking in my black faceplate stack, and a tx-11a for my silver-faced stack of gear. I would like to pick up a TX-12 again, I regret selling that one. ;-/ Again, welcome to TheCarverSite.

There are a few hard-to-use research tools on the internet..., one is to go to the WayBack machine, which has every past internet page ever..., I have not looked there... Another is to query one or more of the other groups and forums that focus on Carver gear - or stereo / audiophile stuff in general..., a la Audio Karma, Phoenix, et. al. I have another packrat friend..., I may reach out to if he's still around.

Welcome to the site, @genxer, lots of info here. The one thing I would add, is that once you get engaged in this hobby, and in Carver audio fandom, you will find that selecting something, is not a decision to land at a final destination..., it is instead, just another stop along the way, call it "a journey..." and one day, you'll wake up with multiple amps..., or find that you have gone through flipped, and migrated to different amps along your Carver Journey... Don't fret or fear that - it's an exciting experience! 😉

Thank you, Kurt. That's good information... More for me, is that this area is a waste-land for listings of the gear that I am looking for - in my own unscientific observation - but then, when you see a listing in, say Phoenix for NHTs..., that "feeling" is exacerbated.

Bob Carver's patent for Sonic Holography is here: US4218585A - Dimensional sound producing apparatus and method - Google Patents It is surprisingly revealing..., and every time I read it, I learn some minutia or detail. Check it out. The figures (2 of 4, really describe the circuit design - I think). Another reference is the topic of "Ambiphonics." That field is: "a method in the public domain that employs digital signal processing (DSP) and two loudspeakers directly in front of the listener in order to improve reproduction of stereophonic and 5.1 surround sound for music, movies, and games in home theaters, gaming PCs, workstations, or studio monitoring applications." Wikipedia has a good article, here: Ambiophonics - Wikipedia The first "roots and research" reference is to Bob Carver and Sonic Holography. And, the license of Sonic Holography from Bob Carver for use in Polk speaker design "marketed in 1982 by Polk Audio as "true stereo" in its SDA-SRS, SDA1 and SDA2 series speakers." This one is another good read!

Distance..., I'll unlikely never get over that way. Probability says that eventually, a pair should come up closer to me in the stomping grounds I frequent (IL, MI, IN, WI, IA, MN).

Sounds like I need to keep focused on getting a pair of 3.3 NHT's. It's been about 3 years since the last pair came available (that I saw) in the WI, MN, IA, IL, IN, MI corridor. Thanks, Mark, I really value your thoughts and experience in this area.

@Sk1Bum, Dick, what is the difference(s) between Kappa 9's and RS IIIb speakers? I've been looking for the Kappa 9's for a long while, and may be giving up. But wonder if I'm searching for the wrong model? I know a few members here in the past swear by the Kappa's. Any thoughts there from anyone?

Would that be this pair of ESL? (I jeard these at AXPONA a couple years ago, in a dealer showcase.) Sounded great, but had a certain sense of fragility about them to my eyes. No cats, no dust, no crazy cleaning lady..., kind of fragility. I assume, like Sonus Faber, they come with custom fitted cloth dust covers..., or I'd want something like that.

Maybe the H-9AV is Bob's version of, or combination of the Dynaco, with his two-channel Sonic Holography... ? I have two of these, one works, the other produces gawd-awful feedback..., need to look into that. There is one two-channel input, with four processed outputs to hook up to a front and a rear pair of speakers via the Carver (of course) amp of your choice. The controls on the front allow you to "engage the SH", apply focal zoom, or the precognition matrix (found in 4000t preamps, IIRC). with an adjustable precognition level when that option is engaged. Hmmm, I've been doing it all wrong..., I (without reading the manual) have always thought this was for two front, and two rear speaker configuration..., But, reading the manual for the first time..., it's really for 4 or 5 speakers, placed as pseudo 4 or 5-channel surround placement, with proper amplifiers for the combined channels for front center, and for rear center (or rear split, driving two speakers with the same output). I learn something new every day - now I have to try this setup, and see how it works. the remainder of the manual is just plain-old 2 channel SH information (same as all other manuals of the period) describing the front left and right speaker placement, toe-in, and so on... I got some fun to go have ..., ah yes, another project!

You should be able to see it - it is just a thread, available to anyone who joins and becomes a member. We've relaxed nearly all of the requirements to participate in this forum - any spamming, and us Mods and Admins just jump on it and delete it. So, you're a member, you should see the link to the other thread. Not sure why..., are you looking at the site on an iPhone? or small screen? Wonky-ness may be due to that - but on a PC or laptop, I know it's visible (I go over to my wife's pc, who's NOT a member, and see it there).

welcome @oldenit, glad you found us. I recall many MANY years ago (15-20?, stumbling across that document/article published by Bob Carver on DIY sonic holography - on the early internet before it was so good at retaining everything... But, alas, I never saved it, and can't find it now..., either. When you built yours, from Bob's instructions, did you keep it? If so, can you post a picture of it? However, one of our members has built their own SH circuit - and there's a thread on his work that he sold here:

Welcome. Another place I would look for help..., is YouTube. There are a dozen or more videos on "Sunfire Subwoofer Repair"..., one guy has made several, and is a member here (albeit has not stopped in in a long time). That guy is "Supreme Innovation" (his name on YouTube. The videos might help, but also, sending a creator of one of those might get a response - schematics unlikely, but experience, perhaps. Best of luck as you search.

just curious, is there a typical reason for this common failure? Any prevention possible? Or does it fall into the two buckets of a) user abuse and/or b) aging or low-quality original components? Thanks for sharing this project. Looking forward to watching the whole thing!