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New 4 channel amp

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toastyghost View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 3:31pm
Originally posted by levyte357- levyte357- wrote:

Originally posted by knet94 knet94 wrote:

http://www.bluearan.co.uk/index.php?id=JMSQ10&browsemode=manufacturer






Originally posted by [URL=http://www.bluearan.co.uk/index.php?id=JMSQ10&browsemode=manufacturer%20 [URL=http://www.bluearan.co.uk/index.php?id=JMSQ10&browsemode=manufacturer%20 wrote:

http://www.bluearan.co.uk/index.php?id=JMSQ10&browsemode=manufacturer]
[/URL]<div id="fulltitle1" style="font-weight: bold;">JAM Systems Q10 :: 4 x 2500W
<div id="info1">A
high-performance range of professional use switch-mode power
amplifiers, delivering outstanding premium power from a compact package.
Its elegant 1U-footprint reduces rack space and cost, and weighing in
at a shade over 10kg, set-up and breakdown of your stage is quicker and
easier. Thoughtfully-designed recessed stepped attenuators make for easy
and precise matching of gain structures, and a completely modular
channel architecture means that each of the four channels has its own
dedicated power supply for ultimate stability, with zero crosstalk or
interference between channels. Employing a classic pulse-width
modulation design, high switch-mode frequency and precise controlling of
deadtime makes for exceptionally low distortion, surpassing the quality
of traditional transformer-based amplifier designs. The high efficiency
power supply is kind to the environment and ensures weight is kept to a
minimum, with a circuit tailored for reliability that helps make sure
your amplifier will continue to provide you with driving power time
after time.



Specifications:

<ul ="with_dots">
  • Number of channels: 4
  • Output Power (all channels driven, THD = 1%) 8 ohms: 4 x 1100W
  • Output Power (all channels driven, THD = 1%) 4 ohms: 4 x 2200W
  • Output Power (all channels driven, THD = 1%) 2 ohms: 4 x 2500W
  • Frequency response (@8 ohms): 20Hz - 20kHz, +/-0.3dB


  • Those specs would make this effectively, more powerful than Inf8MK2.


    Not sure how you make that conclusion - it doesn't suggest they can be bridged, and it gives out less wattage at 4r per ch. And yeah, no indication of what process was used to get those ratings. EIAJ? Would say if so…
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    levyte357- View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 3:39pm
    Originally posted by toastyghost toastyghost wrote:


    Not sure how you make that conclusion - it doesn't suggest they can be bridged, and it gives out less wattage at 4r per ch. And yeah, no indication of what process was used to get those ratings. EIAJ? Would say if so…


    Of course.

    Did say "effectively", but omitted "in theory"..

    You know I'm a "bit" of an '8 groupie, so thought you might have detected, the invisible "tongue in cheek".. LOL
    "Gentlemen, you can't fight in here, this is the war room!!".
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    nickyburnell View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 4:16pm
    Same money as used FFA on a lucky eBay day. Seems nice to me.   Is it Chinese, or re-badged Chinese, or UK design Chinese or do I sense a bit of Matrix here?
    It's everything, not everythink!
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    rosssss224 View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote rosssss224 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 4:20pm
    Same folk as T.amp?


    edit: actually doubt it


    Edited by rosssss224 - 09 January 2017 at 4:20pm
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 4:34pm
    Pl audio from Germany has a amplifier that looks exactly the same.. (D10.4)
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote rosssss224 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 4:37pm
    here we go


    Edited by rosssss224 - 09 January 2017 at 4:39pm
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote freddymendez Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 4:47pm
    KAM?
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    MarjanM View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote MarjanM Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 7:40pm
    Why is it important what is it? Either it works, or not.
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote concept-10 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 7:54pm
    Originally posted by MarjanM MarjanM wrote:

    Why is it important what is it? Either it works, or not.


    This
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    Andy Kos View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy Kos Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 8:30pm
    Originally posted by levyte357- levyte357- wrote:

    Originally posted by midas midas wrote:

    Now, Andy, if you can just add a Q5 to the list. I will have one Q5 and 2 x Q10, thank you...lol.


    Remember amplifier specs are not Gospel..

    Would suspect those supplied, are measured at 1khz, burst. Wink

    Correct, the maximum power is EIAJ burst rating at 1khz (sames as most other class D amplifiers on the market)

    We're working on getting some more accurate measurements done for continuous at 1khz, and probably also a 40-80 hz test.

    If Im honest, the 2 ohm power rating is there just because everyone else has them - I dont think I would recommend 2 ohm operation. 

    If we didnt use EIAJ power ratings, and include 2 ohm, they would immediately look inferior to every other amplifier on the market that uses the same ratings.




    Edited by Andy Kos - 09 January 2017 at 8:31pm
    just a guy with a warehouse and a few speakers... www.bluearan.co.uk
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy Kos Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 8:36pm
    In case of any confusion, there is NO bridge mode. 

    The unit has four separate amp modules inside, each with it's own dedicated PSU, and each module is individually fused. Unfortunately there doesnt appear to be any PFC on these, they are relatively basic amps intended to hit a certain price point. 



    just a guy with a warehouse and a few speakers... www.bluearan.co.uk
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    luton_soundman View Drop Down
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    Post Options Post Options   Thanks (0) Thanks(0)   Quote luton_soundman Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2017 at 8:52pm
    I think the risk of looking inferior should outweigh the risk of publishing 2r specs to show it is 2 ohm stable when you know in yourself you shouldnt do it and wouldnt recommend it.
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