Tweeters Inside or Outside... or Upside Down...? 

I have my Adam A8H's on stands vertically which you can do with the adjustable tweeters. This also puts the tweeter and midrange on the same ear level. Love them! 😎

Glad you got it sorted man. Tweeters inside or outside is 100% room dependant. For my current room, my 100hz issue only gets better when I push my speakers woofers as close to the corner bass traps as possible. So I'm currently tweeters in, but I am still about a meter and a half from each speaker.

Yeah, I think trying things for yourself is best. One thing can work for you, but it will be another thing that will work for someone else! It’s good to try things out! Good job, Ed. :)

I changed my A25-Ms horizontal with tweeters top. I was considering trying tweeters at the bottom, though. I like to sit lower, and having the mid driver higher up might be better in terms of the desk proximity (low-mid buildup). I did have them vertical and upside down to begin with, but the MA-1 alignment didn't seem to do a good job. The right speaker needed turning up and it had too much high mid to high freqs... Horizontal with tweeters/mids facing out (like how you have) worked SO much better. Phantom centre is absolutely spot on now. Sounds like there's a centre speaker! So happy with these monitors.

With the amphions I´ve found that it is best to set them up in a way that you like their sound signature in general (I have them at a distance of 1.10 m) and then NOT to calibrate them --> that way they tell you best what is wrong with the mix, if something sounds weird, then it is weird... I never had that effect with calibrating... :) the one15´s in particular only sound good when the mix is ​​perfect.. I pair them with the flexbase, awesome system for producing and even mastering, but I always turn it off for mixing. greeeets

Cool and timely (for me) vid as I’m having same challenge have re-arranged my room to have the listening point at one end of the room (long narrow space) rather than at the width. But I have lower ceiling doing that way so facing similar challenges. This is where Genelec wins. Tweeter is at mid point so makes no odds which way. So for once lucked out with that option!

For teh most part, check what the manufacturer says. A lot if not most tweeters are asymmetrical (throw wider than they throw vertical) and not made to pe turned on their sides. I have PMC 6 02's and the mid and high drivers are engineered to be on the inside, but they are big and expected to be placed at least 5 or 6 feet a part minimum. At first I thought I was going to have too switch the left and right side but I did not. They also have giant front facing reflex bass ports so it is kind of like having subs on my desk, which is great because the sub low frequencies are as close to time aligned with the low mid and hi drivers as they really can be without being steered by a delay. They faithfully go down to below 30hz too so a added sub is pretty unnecessary. Now that I'm used to them I'm not sure I could ever go back to a sub under the desk. They do look kinda silly on a desk though... they are really big for a nearfield.

Good informative video.

My thoughts are that bass frequency's are less directional and radiate a lot more outwardly... which is why they tend to increase problems if they are put outwardly as it's more filling the room and bringing the room issues into play. Although, I've always known it being common mostly due to the timing of when the bass frequency meets the ears in comparison to the faster moving high frequencies. I've seen a lot of setups where the speakers are upside down and usually this is when the speakers are mounted very high... although that then means it's worse for the timing surely?... it seems really there is no optimal setup where you can copy and paste the idea to another room... the theory then really is you have to test all ways in your room to find what works best in your room. If you are a audiophile you simply need to make sure it sounds the nicest to you... if you are a engineer you need there to be absolute transparency and nit picking becomes you living hell. Translation when mixing is flipping hard to setup up a monitoring system to be confident things will translate well. I mean, you are not just setting up what works best for your room but also what works best for your ears to promote you to make mixes that translate. I've taken note that I might want to have a set of Amphion speakers like to to help with translation... but they might not help me specifically, I will have to try these things with no guarantee they will help and at the same time risk wasting money. The monitoring setup in mixing is more important than analogue hardware and fancy plugins, but it's also not so simple to get a perfect monitoring setup... it isn't just spend over a certain amount and you'll be fine. Where if you was a audiophile, it can become a rabbit hole all the same, but is not going to hider you career in the process of getting it right.

Placing a speaker on the horizontal plane switches its horizontal directivity with vertical and vice versa. That makes the sweet spot of the speakers very narrow (verical directivity is usually +-10 degrees and is especially narrow at crossover point). This is not room dependent, since higher frequencies are very directional. Its not as much of a problem, if you are sitting still and don't move a lot when mixing... Oh and btw if you have low end problems in your room, why not try AVAA? Or a tuned helmholtz.. I'd rather try that than going with a sub or two...

oh but the fallouts I had on Tictok due to me ignoring combe filtering issues. I will say I don't like correction on the Amphions. I do use it on my iloud MTMs but the Amphions are designed to sound they way they are. It will brighten them and mess wit them but I think its best to learn them. Give it time and appreciate the natural sound of the Amphions.

Do u use flat target for room or a separate house target for studio?

If you get a dual coincident monitor you don't have this issue at all (though you'll have some others probably).