Do they still sell new mono speakers or do you have to buy vintage?

[JerryLove]

I havent tried that. But why would there be cancelation?

Because waves interacting out of phase cause cancellation. Interference (wave propagation) - Wikipedia, the free encyclopedia

I have heard speakers in car (6"x9") close together that were intalled on the rear panel(hatchacks) and never heard anyone complaining about cancelation.

How would you know? Do you know which frequencies you'd be interested in? Did you measure the output?

Any car is likely to be full of problems: (relatively) high-frequency standing waves, nulls and highs, etc.

Though that mess of angles can also work in favor of sound: there's a reason that car stereos rarely compete with home rigs.

As far as comb filtering, i could see it happen as you move off axis, that depends how bad it gets. I have never had any problem with my mtm center which should also exhibit com filt.

Why do you think they do MTM and never TMT? SPL obviously, but also because the distance between the wave sources before which cancellation and comb filtering becomes a real problem is related to the wavelength of the sound. Same with baffles.

This is a considerable problem with transmission-lines and one which designers have to work around (and yes, sometimes MTM builders).

But he'd be a pretty poor speaker designer if he had encountered a problem like comb filtering and the just done nothing to correct it, yes?

 

[Ricardojoa]

When you said cancelation, i thought you meant the overall sound. Like when you stand on the side of the open baffle speaker and you hear a lost in sound. Of course putting two speakers together side by side wont do that. Regarless whether the speaker are put side by side or 5 feet apart, the waves length will interfer, thats what we hear stereo (no?) and that causes cancelation?

Thanks for the links.

 

[JerryLove]

When you said cancelation, i thought you meant the overall sound. Like when you stand on the side of the open baffle speaker and you hear a lost in sound. Of course putting two speakers together side by side wont do that.

Umm. Yea it will. At 1/2 wavelength distance (or multiples 1.5, 2.5, etc) where two waves will be 180-degrees out-of-phase.

It happens with a single speaker at the crossover too. One reason for the choice in crossovers is to control where the optimal sound will occur (see lobing: Linkwitz-Riley Crossovers: A Primer)

Regarless whether the speaker are put side by side or 5 feet apart, the waves length will interfer, thats what we hear stereo (no?) and that causes cancelation?

No. You hear stereo because two different sound are hitting your ears.

I mean: technically you always hear stereo (you have two ears), but with only one speaker your stereo hearing will only serve to locate the speaker. By using two speakers it is possible to fool your ears and create a soundstage that does not exist in the room in reality.

 

[MidnightSensi2]

Many a true word spoken in jest. I'm certain most rooms would be better off with 2.1 systems. However you can't even by a 2.1 receiver or pre/pro that is any good.

I have three systems and two of the three are two channel. Dialog is fine and clear and stays centered in all listening positions.

Nod, I watch movies on my computer all the time (2.1 in signature).

My theater room is better with 5/7.2, but thats a dedicated room. I usually recommend people who want to do home theater in living spaces to do it 2.1.

I find for a decent midfield home theater your going to drop some money, even doing it on the 'cheap.' Cost in dollars can be offset by shopping and researching, exchanging time....But there is the gear to really get a theater sound.... and then all the rest: the electrical, the treatments, real blackout blinds if applicable, large air duct to keep ambient noise down/controlling A/C noise, paint, running wires, etc.

Then again, we all define 'home theater' a little different I think, and I may be on the extreme end of that.

I built my theater for a bunch of people to sit in, but really its usually me + one (if I'm good). So, really having to do it over again I could probably go smaller and just sit closer lol. If have overflow, could just toss some pillows and blankets on the floor. Half the time that's what we do anyways.

 

[j_garcia]

Many a true word spoken in jest. I'm certain most rooms would be better off with 2.1 systems. However you can't even by a 2.1 receiver or pre/pro that is any good.

I beg to differ: RR2150 Stereo Receiver

 

[TLS Guy]

I beg to differ: RR2150 Stereo Receiver

It isn't any good. It has no HDMI connectivity or switching. That unit is quite useless as a two channel AV receiver. It would not be any handier than my vintage 2.1 workarounds, and probably not as good.

 

[j_garcia]

Maybe I missed the HDMI requirement, but IMHO, in a 2ch setup I would have to say HDMI would not be among my own requirements. That's exactly how I have my 2ch system setup - the two video sources are both HDMI and feed directly to the display and stereo analog connections to the AVR for audio. Works like a champ, though yes I have to actually press a button to switch sources - which really isn't any different than my pre/pro either, still have to press a button to switch a video source.

 

[TLS Guy]

Maybe I missed the HDMI requirement, but IMHO, in a 2ch setup I would have to say HDMI would not be among my own requirements. That's exactly how I have my 2ch system setup - the two video sources are both HDMI and feed directly to the display and stereo analog connections to the AVR for audio. Works like a champ, though yes I have to actually press a button to switch sources - which really isn't any different than my pre/pro either, still have to press a button to switch a video source.

When you buy your next TV you will find that there is no analog output. So then you will be out of luck. I do the same thing with my downstairs system more or less, except I use an automatic HDMI switch for video. I do use the analog outs on the TV. Back in 2006 all TVs had analog outs, now they don't. So you would have to use an analog optical converter. From the reviews these all have issues, and good audio is not the priority of any of them.

I think this is a DRM issue as TVs now have to make the audio out silent if content has flags to make it so. So with some program the optical out would be silent anyway. I suspect this is the reason TVs no longer have analog outs.

 

[j_garcia]

I mean I use analog directly from the source to the receiver, not from the TV to the receiver. My main system's TV already has no analog outs, but the one in the second system is older and does.

 

[TLS Guy]

I mean I use analog directly from the source to the receiver, not from the TV to the receiver. My main system's TV already has no analog outs, but the one in the second system is older and does.

That is exactly what I used to do at Eagan, but my wife could never get the hang of it, and just used the TV speakers.

My wife wanted a bigger Plasma screen TV to watch the final episode of Downton Abbey with some friends of ours.

No analog outs and the TV is wafer thin, has to be wall mounted for safety, and the speakers face the wall with the space of about two inches. So the TV speakers are now effectively useless.

So I end up with a multichannel pre pro, that does not even work right for 2.1. (See my review). My wife loves it however and got the hang of it right away, as everything switches together with correctly labelled buttons.

In my view we absolutely do need 2.1 pre/pros and receivers that are small and have good HDMI connectivity.

This whole situation is nuts. Panasonic wonder why they can't sell TVs and may well stop making them. I will tell you why, because the broad base of consumers is totally alienated by this idiocy and now watch TV largely on iPads. Trust me the electronics industry is now in the hands of idiots.

My son now principal engineer for Broadcom, says we are rapidly approaching the time where the majority of people only own mobile devices and everything else will be niche.

 

[afterlife2]

My son now principal engineer for Broadcom, says we are rapidly approaching the time where the majority of people only own mobile devices and everything else will be niche.

That's a scary notion.

 

[MidnightSensi2]

My son now principal engineer for Broadcom, says we are rapidly approaching the time where the majority of people only own mobile devices and everything else will be niche.

Rapid is right!

This is with regard to web sites, but still worth a look:
http://www.designfloat.com/blog/2013/02/20/mobile-web-design-infographic/

2014, mobile visits are projected to be the majority over desktop.

 

[j_garcia]

That is exactly what I used to do at Eagan, but my wife could never get the hang of it, and just used the TV speakers.

My wife wanted a bigger Plasma screen TV to watch the final episode of Downton Abbey with some friends of ours.

No analog outs and the TV is wafer thin, has to be wall mounted for safety, and the speakers face the wall with the space of about two inches. So the TV speakers are now effectively useless.

So I end up with a multichannel pre pro, that does not even work right for 2.1. (See my review). My wife loves it however and got the hang of it right away, as everything switches together with correctly labelled buttons.

In my view we absolutely do need 2.1 pre/pros and receivers that are small and have good HDMI connectivity.

This whole situation is nuts. Panasonic wonder why they can't sell TVs and may well stop making them. I will tell you why, because the broad base of consumers is totally alienated by this idiocy and now watch TV largely on iPads. Trust me the electronics industry is now in the hands of idiots.

My son now principal engineer for Broadcom, says we are rapidly approaching the time where the majority of people only own mobile devices and everything else will be niche.

I understand the "ease of use" part and we've had many discussions about stereo receivers with HDMI here - and the fact that we likely won't see such a beast. It is possible someone will do one, but it won't be the "norm", nor will it be a heavy lifter. My chick has a hard time figuring everything out in my systems too, even though everything is on one remote and the new pre/pro does the switching in the main system. In the second system she only uses the PS3 for streaming, so she never has to switch anything My buddy's wife said the same thing to me not too long ago: "He has so many things in the system that if he died, I wouldn't even be able to just watch TV."

The new Denon "E" series have no analog and no doubt would work in a 2.1 setup BUT they lack pre-outs and hefty amps. If we do see a 2.1 pre/AVR come out, it won't likely be from the big manufacturers.