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M&K 750 HT speakers

Discussion in 'Home Cinema Speakers' started by padalam, Mar 4, 2003.

  1. padalam

    padalam
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    Hi,

    I am in the process of upgrading my HT speakers and planning to buy M&K LCR 750 MK II THX 5.1 Suround speakers. Rear L&R speaker are s150. Can I replace s150's with LCR 750 for the rear, will there be any significant performance change, Does it make sense to replace rear with LCR750. These speaker will be driven by Onkyo TXNR-900 receiver. Any Help Appreciated.

    Thanks
    -RJ
     
  2. CarlB

    CarlB
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    I think you mean the rear speakers are the 550's, not 150's. The 150's are M&K's finest consumer satellites...

    I have the 750 package and find the 550's to be fine at the rear in my small room, they are essentially identical to the 750 except they only have 1 midrange driver, rather than the two in the 750. I don't really see why you'd want to swap for 750's at the rear, and if you really want to upgrade the rears then I would be looking toward the M&K tripole range instead (such as the Surround 55 tripole).

    Hope this helps.
     
  3. padalam

    padalam
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    Sorry folks, I meant M&K S-550 NOT S-150 for the rear

    -RJ
     
  4. Apone

    Apone
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    While it would not hurt to have five identical speakers the main factors to consider are-

    1 Have you got enough power in the Onkyo to power all five speakers?

    2 What are you hoping to achieve with 750 thx speakers at the rear if you already have 550 thx surrounds?

    3 I think that 550thx speakers may be an 8 ohm load to the amp and the 750thx are a 4 ohm load hence will draw more power so again consider point number 1

    If you can accomodate the larger speaker then go with it or consider the new MK column surround speakers if you want a more difuse sound.

    Hope this helps

    Mahmood
     
  5. Phil Hinton

    Phil Hinton
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    I am using the 750THX LCR with Surr55 Tripoles and these create a superb soundfield that fills my room very well.
     
  6. Phil Hinton

    Phil Hinton
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    Forgot to mention they are 4ohm all round, so good amplification is required, and i dont know the specs of the Onkyo.
     
  7. Craig Sowerby

    Craig Sowerby
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    Hi,

    The Onkyo TX-NR900E is a good match for the M&k 750THX

    select speakers, and will have no problems driving them.

    As for speaker choice, either the SS-550 or the SS-55 tri-pole will be fine.

    Phil (THX1138) has the tri-pole and i'm sure he is very happy with them

    Which Subwoofer are you using?
     
  8. chips

    chips
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    I'm using an Onkyo 989-UPG2 to drive S85 fronts and SS-150 surrounds and rears, seems to do a good enough job. I can play reference level with no noticable distortion.
     
  9. padalam

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    Subwoofer : Waiting for M&K v1250. Either I will settle for M&K or REL Q150E. I need to audition M&K in my room, before I decide to keep them.
     
  10. padalam

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    Onkyo TXNR-900 7.1 Specification

    Power Specifications
    Power Output* (8 ohm, 20 Hz-20 kHz, FTC) -
    Front L/R 110 W/Ch
    Center 110 W
    Surround L/R 110 W/Ch
    Surround Back 110 W/Ch (L/R)

    Dynamic Power** -
    3 ohm (Front) 280 W/Ch
    4 ohm (Front) 220 W/Ch
    8 ohm (Front) 140 W/Ch

    Amplifier Design
    Identical Full-Bandwidth Channels 7

    I was told this can easily handle full bandwidth speakers. I wasn't sure if it really makes sense to have M&K LCR 750 speakers even for the rear.
     
  11. Ian J

    Ian J
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    I assume that you are American as you refer to HT speakers which we don't have in UK.

    As REL products are much more expensive over there why would you want to buy a Q150 when the Velodynes that we are all buying in UK are so much cheaper out there. :confused:
     
  12. CarlB

    CarlB
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    The 750's, and all M&K main/surround speakers, are not full bandwidth. They are all designed as sub/sat systems, so all the 750's add over the 550 is an additional midrange driver. They do not produce more bass and are not designed as such. The bass is routed to the subwoofer through your amplifier bass management system (when your speakers are designated as 'small').

    I use 550's at the rear and they are great, but in the longer term I will probably upgrade to the 55 tripoles to provide a little more diffusion. I will still keep the 550's as mini-monitors in another room though, they are not low quality surrounds at all!

    Personally, if I were you I'd get the 55 tripole rears rather than 750's (if we are talking about speakers costing the same ballpark figure).
     
  13. Craig Sowerby

    Craig Sowerby
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    The M&K v1250THX is a good choice,
    also try one of the M&K MX series of push/pull subwoofers,
    perhaps the MX125 Mk11 or MX150THX.
     
  14. Ian J

    Ian J
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    As there is no acoustic matching to worry about with subwoofers, it isn't necessary to buy a sub from the same manufacturer as the main speakers and there are many other subs that offer better value for money than M&K
     
  15. Craig Sowerby

    Craig Sowerby
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    Hi

    Sinergy between subwoofers and speakers is important,

    clearly it is not "necessary" to buy the same subwoofer from the same manufacturer as the main speakers, and Value for money is a matter of opinion.

    Padalam,

    enjoy auditioning the M&K system, and as Ian suggested try auditioning other subwoofers for comparison.

    Good luck.
     
  16. Phil Hinton

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    Very hapy with them craig, as i said in another thread somewhere they are by far the best rear speakers i have used in the 10years i have been into this hobby.

    BTW Craig, I will soon be a Tag av32r and Rotel 1075 owner, so advice on cables needed soon.(the arcam stuff was just too bloody expensive)
     
  17. padalam

    padalam
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    In fact this is my first time on a forum for questions, really appreciate ever ones suggestion. I finally decided to go for M&K 750 for center, friont Right+Left, for the rear I am going with M&K s55 tripole.

    Regards
    RJ
     

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