running dual speakers per channel in stereo, WTF!?

[khaliss]

Maybe get a speaker switch so you can switch when you move around or working to just one pair, and Martin Logan for critical listening?

Come to think of it, if I want to do some critical listening... I can actually just turn off (or bypass) the Marantz AVR which powers the RS6s, the surrounds, & the LFE subs. My DAC's balanced outputs are actually connected via XLR cable directly to the T8pro EQ/preamp, which in turn feeds audio to the outboard power amp, which powers my ESLs. Then it will just be the two main speakers!

 

[Chrispy]

Come to think of it, if I want to do some critical listening... I can actually just turn off (or bypass) the Marantz AVR which powers the RS6s, the surrounds, & the LFE subs. My DAC's balanced outputs are actually connected via XLR cable directly to the T8pro EQ/preamp, which in turn feeds audio to the outboard power amp, which powers my ESLs. Then it will just be the two main speakers!

So complicated

 

[khaliss]

okay, I used REW to generate room correction configs for EQ-APO... here are the results after measurements:

LEFT channel: green - unmodified | red = corrected

RIGHT channel: blue - unmodified | pink = corrected

now, onto some listening test see how I like the change =)

 

[khaliss]

fine fine, I LIKE it... tracks sound smoother & pure, me thinks!

"Come Together" 2019 mix = sounds sublime!

 

[Madlop26]

Yeah, I get it... and now kinda wish I should NOT have paid attention to the unsmooth graphs, now I can't unsee it. Sometimes, ignorance is bliss LOL

My ears are telling me the dual speakers are not having a detrimental effect to the sound... but instead it is adding some sort of enhancement (expanded soundstage, still providing good audio when I'm outside the sweetspot, etc), so I don't know... maybe I'll keep going with it LOL

I'll just program my brain to only visualize the sound in ERB smoothing :
View attachment 449443

I guess it was expected you get into intermodulation detrimental with dual speaker. From the technical aspect of fidelity to the original sound, single speaker has an advantage, if can you hear it or not, who can really know for sure. But..... regarding enjoyment, that is a quite different conversation. I have and automation that activates 3 speakers in my bedroom when I arrive from home, I know there must be some intermodulation problem, but I do not care, i was looking is for a more spread sound as i am moving around the room, which I enjoy.

 

[khaliss]

I guess it was expected you get into intermodulation detrimental with dual speaker. I guess from the technical aspect of fidelity to the original sound, single speaker has an advantage, if can you hear it or not, who can really know for sure. But..... regarding enjoyment, that is a quite different conversation. I have and automation that activates 3 speakers in my bedroom when I arrive from home, I know there must be some intermodulation problem, but I do not care, i was looking is for a more spread sound as i am moving around the room, which I enjoy.

yes, exactly what I had in mind when this idea popped in my head (not the first time too). At least I can always revert back to single speaker mode with just the flick of the little switch on my T8pro EQ/Preamp (like a virtual speaker switcher lol).

I did an A/B test last night, listened to several test tracks for over an hour, closely comparing single vs. dual speakers. Swear I cannot hear a difference in fidelity, both sounded just as good to my ears... no hint of anything missing as from the samples of comb filtering on youtube videos (I do have a very slight bit of hearing loss on my left ear, which I just found out a year ago... but nowhere near the point of needing a hearing aid LOL)

 

[mhardy6647]

"stacked Advents".

 

[khaliss]

"stacked Advents".

interesting stuff, thanks for mentioning this

 

[mhardy6647]

interesting stuff, thanks for mentioning this

For better or worse, it is/was a thing. Here's the origin story...

 

[khaliss]

this is half of what I love about this hobby... the fun involved in experimenting & tweaking the system!

So now, I did another big change... I changed from a Quad stereo speaker setup (which is what this thread is all about LOL), and now configured the RS6s to function as Front-Height speakers =D I'm now listening to music in Dolby PL-IIz (height-enabled) Surround 7.1, sounds darn good so far, very interesting & pleasant effect!

I've further refined my EQ-APO settings, by re-measuring and changing the curve parameters... measurement results look almost perfect! (for a small room with zero acoustic treatments)

LEFT channel (red = uncorrected | blue = corrected)

RIGHT channel (green = uncorrected | yellow = corrected)

 

[Chrispy]

this is half of what I love about this happy... the fun involved in experimenting & tweaking the system!

So now, I did another big change... I changed from a Quad stereo speaker setup (which is what this thread is all about LOL), and now configured the RS6s to function as Front-Height speakers =D I'm now listening to music in Dolby PL-IIz (height-enabled) Surround 7.1, sounds darn good so far, very interesting & pleasant effect!

I've further refined my EQ-APO, by remeasuring and changing the curve parameters... measurement results look almost perfect! (for a small room with zero acoustic treatments)

LEFT channel (red = uncorrected | blue = corrected)
View attachment 449756

RIGHT channel (green = uncorrected | yellow = corrected)
View attachment 449757

Well, you had duplicated 2.0 setup originally from what you posted, not a quad setup. Using front heights with L/R speakers is closer to quad, tho, but not quite.

 

[khaliss]

Well, you had duplicated 2.0 setup originally from what you posted, not a quad setup. Using front heights with L/R speakers is closer to quad, tho, but not quite.

aye, that's what I meant... my bad! But yeah, at least I no longer have to think about comb-filter thoughts, even though I couldn't really hear the effects at all, haha

 

[Chrispy]

aye, that's what I meant... my bad! But yeah, at least I no longer have to think about comb-filter thoughts, even though I couldn't really hear the effects at all, haha

As I like to say, reference isn't necessarily preference. Do what you like. Quad (4.0) is a specific format, not just having four speakers is what I was after.

 

[Old_School_Brad]

Yeah, I get it... and now kinda wish I should NOT have paid attention to the unsmooth graphs, now I can't unsee it. Sometimes, ignorance is bliss LOL

My ears are telling me the dual speakers are not having a detrimental effect to the sound...

I'll just program my brain to only visualize the sound in ERB smoothing :

The ERB models the human auditory system's frequency resolution and is well-suited for perceptual audio. It's generally the best choice when you're working with sound in a way that's meant to reflect human hearing. Other smoothing models are more appropriate when specific technical or diagnostic needs arise.
So ERB is the one you should use.

 

[khaliss]

The ERB models the human auditory system's frequency resolution and is well-suited for perceptual audio. It's generally the best choice when you're working with sound in a way that's meant to reflect human hearing. Other smoothing models are more appropriate when specific technical or diagnostic needs arise.
So ERB is the one you should use.

yeah, the ERB graph seems to reinforce what I'm actually hearing on listening tests... I just can't unsee the raw graph (with no smoothing), so those thoughts kinda linger in my head & makes me doubt if I'm getting the most out of my system in terms of fidelity... oh well

 

[wadude]

For better or worse, it is/was a thing. Here's the origin story...

View attachment 449745
View attachment 449746

That they went through six tweeters through careless handling and applying too much power speaks volumes.
Also, the dimensions mentioned in the video were for Smaller Advents, which were rated at 4 ohms.
Nice to see some Advent love, though!

 

[Old_School_Brad]

yeah, the ERB graph seems to reinforce what I'm actually hearing on listening tests... I just can't unsee the raw graph (with no smoothing), so those thoughts kinda linger in my head & makes me doubt if I'm getting the most out of my system in terms of fidelity... oh well

The best advice is to just ignore it -it's inevitable and ultimately unimportant.

 

[Marin]

Hello everyone

yes, exactly what I had in mind when this idea popped in my head (not the first time too). At least I can always revert back to single speaker mode with just the flick of the little switch on my T8pro EQ/Preamp (like a virtual speaker switcher lol).

I did an A/B test last night, listened to several test tracks for over an hour, closely comparing single vs. dual speakers. Swear I cannot hear a difference in fidelity, both sounded just as good to my ears... no hint of anything missing as from the samples of comb filtering on youtube videos (I do have a very slight bit of hearing loss on my left ear, which I just found out a year ago... but nowhere near the point of needing a hearing aid LOL)

It's great that you managed without introducing more electronics into the upstream path.
But I wanted to ask you why you put "stand mount" speakers on cabinet?
I guess for the same reason I'm thinking of doing it.
So when I listen to music sitting or, better yet, lying down on my sofa,even though I'm a good 10 centimeters below the tweeters, I always have the feeling that all the singers are dwarfs
I guess it has to do with the fact that most of the basic tones and voices come from the midrange
But again, looking at the Klippel spins and how almost all speakers are bad vertically, I'm afraid I'll end up with a hole between 1000 and 4000hz where the crossover is.
Does anyone know what the length of 10 degrees is at 3 and a half meters away?
Thanks for the reply.

 

[khaliss]

Hello everyone

It's great that you managed without introducing more electronics into the upstream path.
But I wanted to ask you why you put "stand mount" speakers on cabinet?
I guess for the same reason I'm thinking of doing it.
So when I listen to music sitting or, better yet, lying down on my sofa,even though I'm a good 10 centimeters below the tweeters, I always have the feeling that all the singers are dwarfs

the Monitor Audio RS6 speakers are quite short, I think they are the smallest floorstanding speakers from that product line... and since I have those extra nighstands, I decided to put the speakers on top of them to gain a bit more height so they don't look too odd next to the electrostats. Also, by propping them up, when I'm standing & moving around, the tweeters & woofers would be more in the same level as my head/ears, thus sound better (in theory)?

 

[khaliss]

setup modified, for now I'm doing away with the dual stereo speakers & putting them in as height speakers... thanks for everyone's feedback/advice!