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bi amping 908's

Discussion in 'Home Cinema Speakers' started by clancol, Sep 18, 2003.

  1. clancol

    clancol
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    i have a marantz sr5300 and some mordaunt short 908s for my fronts.
    I was thinking about biaming them.
    How would i do this?
    What gear would i want?
    And how much would it cost?
    Please Help.
     
  2. Ed Selley

    Ed Selley
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    1) Attach additional amp(s) to pre-outs of 5300
    2) For a reasonable (note not identical) match try Marantz MA6100 Monoblocks. Someone on the forum has this config.
    3) Depends on where you shop. RS had some at the last clearance sale.
     
  3. pwiles1968

    pwiles1968
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    That would be Me. They are not an Identical match for the SR5300 because they are vastly superior amplifiers, but as far as gain and tonality they are fairly well spot on, or as close as you will ever get.

    I got my MA6100’s from unbeatable (follow link), and had to wait for quite a while for them but it was definitely worth it they cost me about £375 inc delivery, yep quite a lot of money but in my opinion worth every penny, I had looked at buying a £400 CD player these cost me less and IMO gave much greater improvement in sound quality, Tight Bass, much more detail, better staging.:smashin:

    Here is the link - http://www.unbeatable.co.uk/CatalogueItem_123.html

    Another option would be to look on e-bay I have seen MA6100’ go for just over £200 a pair (two weeks after mine arrived, bummer) others to look out for are the MA500 or 700. or Marantz did a 5x140W power amp the MM5000. If you go for any other amp you will need to check the gain, if you can find an amp with variable gain inputs you can adjust it to match the SR5300.

    I do not know if it is true but on another thread someone said that all THX amplifiers have the same gain? The MA6100’s are THX ultra approved and are the same gain as the SR5300, if it is true that THX amp’s all share the same gain then you could use any THX approved power amp with the SR5300, can anyone confirm or refute this?
     
  4. pwiles1968

    pwiles1968
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    Nearly forgot to mention the drawbacks of the MA6100’s, first is the length they are very long! I had to glue two extra feet on because the ones that were on there overhung my cabinet by a couple of inches, no big deal for me and only about 40p from the DIY store. The second is there is no way you will be able to listen to any of these, I will be surprised if you find anywhere with them in stock that have demo facilities so you are buying on spec or a gut feeling. I would not recommend anyone do that unless they are certain it is what they really want.
     
  5. clancol

    clancol
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    piles
    do you run your mid/bass off your fronts from your mono blocks and your tweeter from the5300
     
  6. Ed Selley

    Ed Selley
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  7. pwiles1968

    pwiles1968
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    Yup
     
  8. clancol

    clancol
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    does that "Yup" means. Yes thats how i wire the speakers.
    or Yup pure genius.
    how much better do you think it sounds with the ma6100
     
  9. clancol

    clancol
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    i have had a look at the marantz sm 17 and I really, really, like the look of it.
    would this work the same way as the ma6100 mono blocks that you were talking about. only i would only need one.
     
  10. Ed Selley

    Ed Selley
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    You'd only need one BUT it really doesn't have much in common with a SR5300 sonicaly. So there would be a bit of mismatch.
     
  11. pwiles1968

    pwiles1968
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    Clinkers - "Yup" means the MA6100 would drive the bass, and the SR5300 drives the treble, you already know I don’t think you are a genius, LOL.:rolleyes:

    With respect to how much Improvement – I was never 100 % happy with the system yes it sounded miles better than my last amp a Yamaha DSP A5, but the bass was never quite right it plodded a little, mainly due to the B&W’s they need a good amp to keep them in check, now well I know I could make some improvements (the CD player to start with) but I really enjoy the sound I get :D and I am not bothered I can not afford any new kit at the moment.

    Would I change? If I had several grand spare probably, upgrades? possibly a sub something that would work with music, a CD63 KI if I can find one cheap enough, not the amp though not for a few years yet.

    I will take 'tons' word for the Sonics I have never herd the SM17, I am not sure if the SM17 would have the same gain as the SR5300 plus the fact that they are IRO £700 (unless you can get them cheaper where you work?) so although you need only 1 they are twice the price of two MA6100’s, and your wife will love the blue lights on the front of the MA’s - no honest.;)

    The Mordaunt short 908's are they active sub at the bottom? what is the x-over frequency?
     
  12. clancol

    clancol
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    no they are passive subs. built into the 908's
    am not quite married yet?
    and do the ma6100's have BLUE lights?
     
  13. pwiles1968

    pwiles1968
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    -You should definitely get a decent amount of gain in Bass control over just the SR5300,
    -Sorry I read Partner as Wife, getting old.
    -Yup, Bright Blue Lights that turn Red in standby mode, you can hook them up (via remote in out) to turn on and off with the SR, you do not have to press loads of buttons.
     
  14. clancol

    clancol
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    i think i will be lookin to see if i can get some. It's the light that sold me.
     
  15. pwiles1968

    pwiles1968
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    Let me know how it goes.
     
  16. clancol

    clancol
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    i think i will be lookin to see if i can get some. It's the light that sold me.
     
  17. pwiles1968

    pwiles1968
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    Ooh dejavu
     
  18. clancol

    clancol
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    that was weird, I never posed twice.

    Anyway it may be a while till i get them as
    i'm after a new tv first.
    no point in havin killer sound with a 28inch telle
     
  19. clancol

    clancol
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    just thought. I take it this blue light can be switched of
    may get distracting during movies
     
  20. pwiles1968

    pwiles1968
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    Afraid not, I had read threads about them being distracting but never had a problem myself even with the room lights off.

    I only have a 28” TV (it has to go in a cabinet) Wife likes big speakers but not tellies, trying to convince her we need a plasma, by the time I do I may actually be able to afford one and the quality problems should have been ironed out. I bought the amps primarily for music, although movies have improved as well (bass goes lower now).
     
  21. nathan_silly

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    Put a blob of blu tack over each bright LED. I've done that to my Toshiba RP (one bright red LED when it's switched on)

    Tag gear also have bright blue (which are much more distracting than red), I've painted over the LED- now a dull blue shines through the paint... looks much nicer.
     
  22. clancol

    clancol
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    nice
     
  23. pwiles1968

    pwiles1968
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    But the blue lights are cool, its having your own disco LOL.
     
  24. nathan_silly

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    Nah it's just annoying. My DVD player DD light is especially bright- 1cm x 1cm bright blue Dolby Digital logo (checkout the comments on audioreview on the Sony DVP-S500D). In a darkened room it sticks out like a sore thumb and is very distracting. Dim red LED's don't bother me, bright Red & bright Blue LED's do.
     
  25. clancol

    clancol
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    Just tell me if this is stupid.
    But could i get another cheaper sr5300 or 4300 and conect via pre out and bi amp the speakers that way and also have two pure subwoffer outs and two rears. or would setting the volumes on each amp be to iritating.
     
  26. pwiles1968

    pwiles1968
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    Volume setting would be a nightmare you would have to tape over one of the remote sensors otherwise you would be controlling both of them at the same time and the improvement in sound quality would not be as good IMO.

    Another option would be a good separate stereo amplifier, this would not be Bi-Amplified but it would give better control over your speakers than the SR5300. If you had one of the Arcam’s then you do not need to mess with volume controls as they have an AV input at the rears, this includes the older Alpha Series like the A85 these are moderately cheap now a days, and you could even add a P85 power amp later to Bi-Amp. I have a friend with this set up but he thinks my system sounds at least as good in stereo. Look on e-bay should be able to get a bargain.
     
  27. clancol

    clancol
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    like i said. just tell me if i am stupid.
    i think i will just save up for the ma's
    mabey if i can get a good deal on a tv at chrimbo
    say reduced by £400 i'll get them.
     
  28. pwiles1968

    pwiles1968
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    Not a stupid idea, just potentially a little impractical.
     
  29. clancol

    clancol
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    oh your to kind.
     

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