Answered Monitor Audio - IDC vs FX for Atmos?

Discussion in 'Home Cinema Speakers' started by DeadEye, Feb 2, 2017.

  1. DeadEye

    DeadEye
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    The Atmos advice on the Dolby website says the ceiling speakers should have a wide dispersion.

    Many say the upward firing Atmos floor standees the referential sound off the ceiling are particularly good.

    So surely the FX version of the CT265 with two tweeters giving a very wide dispersion would be a better option than the IDC which simply allow you to point the tweeter and mid at the listening position.

    Or?
     
  2. Deleted member 598831

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    The 265idc are a step up from the 265 and 265fx in terms of sound quality with having the dedicated mid driver. They also have decent dispersion over the 265, but i cant comment on the fx version.
     
  3. DeadEye

    DeadEye
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    Do you have Atmos?

    Do you know what kind of frequency range Atmos effects have?

    My only bench mark is going from 5.1 to 7.1 and in the end I went back to 5.1...

    I've never heard Atmos...
     
  4. Deleted member 598831

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    Im how can we say, in the process of going atmos. I only have 5.1 base layer also.

    I dont know the fr range of the atmos effects, but with having a sub the avr will crossover at roughly 80-110hz, as a majority of dedicated atmos speakers are quite small.

    As for atmos being an object based surround sound format i was of the understanding that a direct firing speaker was the preffered option as nearly all atmos speakers have single tweeters. On the other hand quite a lot of people use tripole speakers for atmos duties and have obtained good results.

    I think with anything in this hobby its a case of what works for your room/system/budget etc.
     
  5. Stoke192

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    I too am in the process of updating my system to atmos, well my whole system actually and if I'm honest my head is starting to hurt with all of it...... Information overload ;)

    I've decided on my LCR (Apex A40's) and reciever but the surrounds are a causing some decision problems, either a pair of A10'S or Silver FX's......
    I'd decided on either 2/4 CT265's for atmos duties.....And now this :facepalm:
    The FX's are listed as "Dolby atmos compatible"....For the better dispersion ?
    I suppose, if you can stand the extra cost of the FX speakers then you could switch between the two modes to see which sounds best....
    My head is starting to hurt a lot with all this, the sooner I get a demo of all this kit the better.....
     
  6. Deleted member 598831

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    I would say if you go for the silver fx as surrounds then look at the ct265idc for atmos.

    Im sure the idc are a better match for the silver fx. At least. Thats what my ears told me.....
     
  7. DeadEye

    DeadEye
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    The FXs are cheaper.
     
  8. Deleted member 598831

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    Than the 265idc yes, but not cheaper than the 265
     
  9. DeadEye

    DeadEye
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    Got a link?

    The CT265IDCs are the dearest, then CT265FX then CT265 when I search.
     
  10. Deleted member 598831

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    Yea, i was saying that stoke192 said if you could find extra money fot the fx, as he was talking about the 265. You replied saying fx were cheaper, but you were talking about the 265idc, so as you said above the fx are chesper than the idc but not to the 265.:smashin:
     
  11. Stoke192

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    The 265idc's are a bit of a stretch too far budget wise atm, I might be able to stretch to the 265FX's if I drop down to a 5.1.2 atmos setup (with a view to go .4 when funds allow), if they give a better bang for buck.
     
  12. DeadEye

    DeadEye
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    There doesn't seem to be a great deal of info on the web about Atmos in-ceiling speakers does there?

    At the best part of £1k for all four it's an expensive risk...
     
  13. Deleted member 598831

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    Some places can offer discounts, and some dealers may have some b-stock, but on paper the 4 idc come in at £860, plus cabling, and in my case external power amp.........the joys of AV:laugh:
     
  14. DeadEye

    DeadEye
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    Ok, I have a response from Monitor Audio. This is despite a YouTube video I watched from a home cinema installer saying the FX speakers are better:

    Hi Phil

    Thank you for your interest in our speakers.

    I have taken the liberty of attaching a document by Dolby regarding Atmos setup and installation. You may find it helpful?

    We would not recommend using the FX’s for Atmos speakers, they are fine for your side and rear channels but we have found Atmos to sound better with a traditional directional speaker. For the majority of systems the best in ceiling speaker we do for Atmos is the CT265-IDC.
    This speaker houses an inverted mid-range driver (IDC) which offers a superior dispersion to the standard Trimless models (such as the CT165 or CT265), which works very well for atmos. Being a 3-way speaker, it will also offer improved clarity in the mid-range frequencies.


    More information on the CT265-IDC can be found on our website here:
    CT265-IDC

    Please come back to me with any questions.

    Best regards
     
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  15. Deleted member 598831

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    @Stoke192 perhaps look at the ct165, as they are a match for the radius range, just a thought.

    Plus it saves £200

    Edit, ignore that, I forgot your going to upgrade to the apex and silver fx:facepalm:
     
  16. DodgeTheViper

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    And thank you to @Steven1210

    :smashin:
     
  17. Stoke192

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    Thanks,
    I was originally going to go for the 165's but have since been made aware that the 265's are the better match for my proposed upgrades and originally though (when I posted here) that the FX's were somewhere in between the 265's and the 265idc's......but judging from that reply from MA, i'm guessing not.
    maybe i'll stick with the 265's and maybe upgrade to the idc's at a later date when funds allow.

    heads still hurting btw ;) :laugh:
     
  18. DodgeTheViper

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    It'll keep hurting right up until you make the final decision :D

    Then that particular hurt will stop to make way for a new hurt . . . . . 'The Installation' . . . . :D ;)
     
  19. Stoke192

    Stoke192
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    The installation shouldn't be to bad as I can get access from the room above, the fact that it's full of my 9yr olds "Stuff" is another matter :facepalm:
     
  20. DodgeTheViper

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    Sounds like it'll possibly be a little easier than mine then :D
     
  21. Stoke192

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    Yeah, I've read your thread, looking good btw..I've still to decide on speaker positions..... more head hurting, it's the whole .2/.4 thing.
    .2 "should" be relatively straight forward, if I go .4 then I've a feeling, like you i'll have some electric cabling to deal with.
    I'll cross that road when I get to it lol
     
  22. DodgeTheViper

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    You're very welcome to come and have a listen to mine if you want :)
     
  23. Deleted member 598831

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    I keep thinking that, should I go 2 rather than 4, but my logic is that if I already have the amp capability, the positions in my head etc, them I'm bloomin sure I'm not going through 2 lots of install ballache, might as well do 4, and can always disconnect 2 if not happy:D
     
  24. Stoke192

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    The amp i'm after is 9 channel, so was going to go 5.1.4....then having thought about it a bit further decided that a 5.1.2 setup might be best as my seating is against the back wall.
    Then reading Dodges "time for Atmos" thread, there were pics of Seriously Cinemas setup posted in which he had a 5.1.4 setup with speaker positions pretty much identical to my proposed positions....
    So, thinking to myself, if is good enough for him, then me too....so the 5.1.4 was/is back on.
    And round and round it goes :laugh:, the sooner I demo some kit, buy it, install it and start enjoying it, the better.....maybe, just maybe my head will stop hurting ;)
    As you say, I can always disconnect the back 2 if it sounds pants....but I can't see that happening ;)
     
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  25. Deleted member 598831

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    Oops, editing issues.

    Sofa on back wall as well, 4 is the magic number;)

    20160424_184554.jpg
     
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  26. Stoke192

    Stoke192
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    Thanks for your kind offer, but your probably a bit far from me, I've a demo booked at QuantumAV at the end of the month, so hopefully I can make some decisions :laugh:
     
  27. DeadEye

    DeadEye
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    I cabled my lounge before the plasterers boarded the house (and before we exchanged contracts!) to the cupboard behind the lounge.

    I left coils for all four heights but could never find the tails.

    So last week I cut a hole in the ceiling near the back of the room and found them all coiled up rather than fed through to the cupboard. Cheeky sparky must have done it.

    So fingers crossed I just need to cut the holes for the speakers and the cables will already be there.
     
    Last edited by a moderator: Feb 4, 2017
  28. DodgeTheViper

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    Andrew Quantum AV: Home Cinema & Hi Fi Specialists will look after you, he's a really nice guy ;)

    You won't need much gas to get to me, PM me if you want to pop over.
     
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  29. Stoke192

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    Nice!, how do you get on with the FX's ?, they've been recommended to me instead of two A10's on stands either side of the sofa (which is how I've got my R180's currently) they would be installed behind my head, like yours.
    I've no experience of FX speakers at all, I was toying with the idea of getting some used Bronze FX's to see how they sounded compared to the 180's on stands.

    Here's a pick of the back of our room, ignore the R90's on the wall, they're either going completely or the cabling with be re used for possible FX speakers (spread out a bit) and loosing the speakers on stands.

    [​IMG]
     
  30. Deleted member 598831

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    I think the silver fx could work in the thoughts that you have. I would say one on right where r90 is currently, and the other above the two cusions on the left of the sofa. Probably same height, about 1.5ft above ear level as like me your close to rear wall. Moving sofa forward by as little as 15cm can make a difference as I found.
     

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