I would have thought there'd be a significant possibility of introducing noise going from speaker level to line level, but a quick perusal of that thread seems to indicate otherwise, by posters who seem to be more knowledgeable than I. It still seems like a wacky solution to me and also, don't understand why you're looking at a solution that would give you only 2 channel capabilities when your original question concerned a multi-channel receiver. It seems to me that it would be just as inexpensive to get a decent MCH AVR as it would be to get a decent stereo amp and the AVR would allow you to have surround sound in the future.
Also, I would still be leery of those speakers if the ones that came with a HTIB setup sound better. I'm also confused as to how your Technics sounded better crossed over at 200 hz, when you had the sub's filter engaged (unless it is actually used only for the speaker level inputs). Otherwise, if your mains are crossed over at 200 hz in the receiver and your subs hi-pass is set to 120, you're getting very little musical info in that 120-200 hz region- the receiver is sending everything below 200 hz to the sub, but the sub is filtering out everything above 120 (which would explain why you're not hearing much localization of the bass, which you definitely would w/ just the single 200 hz crossover). You might want to see how your neighbor's speakers sound on your receiver, if he'll let you do that and see if he notices a significant difference as to how they sound w/ his AVR/amp. Unless your receiver is way under-powered, I can't imagine why they would have a significant effect on the bass your speakers put out- unless maybe it's an impedance problem? Do you know the rating of your Technics (if they're 4 ohms, maybe that's the problem)???
Well I'm doing all this using cheap used old equipment... I'd get an old stereo amp for 15 bucks or so, and the speaker-to-line converters for 7 dollars each.
The idea is:
- Center, Surround L/R: connected to receiver's high-level speaker connectors. Passive.
- Sub: AIWA, connected to receiver's low-level RCA out. Active.
- Stereo amplifier: connected to receiver's high-level speaker connectors with high-to-low speaker-to-RCA converters.
- Front L/R: connected to stereo amp
That setup should give me multichannel with great sound from the front L/R, which, connected directly to the receiver, sound bad. But you're right, a proper solution would be to just get a great 5.1 receiver. I fully intend to once I can afford it.
About the speakers, I can say:
- The Technics sound great on the in-a-box system in the living room, shitty on my receiver
- The living room speakers sound great on the in-a-box-system in the living room (a bit better than Technics), shitty on my receiver
The Technics didn't sound any better or worse when crossed over at 200. I am 99% certain that the receiver is just very weak, and to get better bass, I need to feed it to the powered subwoofer which does its own amplification.
The receiver has been giving me weird behaviours ever since I bought it. This is how it worked when I was still using the passive speakers it came with (small center/surround/fronts, passive sub):
https://www.quadraphonicquad.com/fo...ct-for-some-Titles-Crap-for-Others&highlight=
All my speakers are 8 Ohm.