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Nad M22 V2 on the way...

Discussion in 'audio' started by KWB1, Jan 13, 2018.

  1. KWB1

    KWB1 pfm Member

  2. hifi-dog

    hifi-dog pfm Member

    Holy moly,,
     
    KWB1 likes this.
  3. Julf

    Julf Evil brother of Mark V Shaney

    700 W into 4 ohms isn't enough?
     
    KWB1 likes this.
  4. KWB1

    KWB1 pfm Member

    You would of thought so for most people - no such thing of having too much headroom though :D

    Im really liking the Nad Masters kit - great on the eye with excellent features and sound
     
  5. TheDecameron

    TheDecameron Unicorns fart glitter.

    Who’d ever have thought we could get this kind of wallop from a board the size of a fag packet? That bridged performance is terrifying- you could turn your tweeters into car cigarette lighters. The Master stuff is really fine quality.
     
    KWB1 likes this.
  6. Julf

    Julf Evil brother of Mark V Shaney

    You should see my main amps - 4 nc400 modules per channel (but power limited to 1200 W by power supplies, two smps600's shared by the 4 amps per channel) - and it all fits in the speaker stand :). Properly done class D is a real game changer.
     
  7. dtd

    dtd pfm Member

    A few interesting things with the v2; adjustable input gain (finally!!!), Makes a good difference at normal listening levels, especially if digital volume control.

    They appear to have better current capabilities that other ncore modules to date. The question is how clean do they remain at 2 ohm's? Admittedly not that often seen in normal speaker loads.

    Hopefully they've cleaned up the thd performance on their input buffer, on paper at least the v1 wasnt the cleanest of all ncore amps. Depends how important thd+n is to you mind.
     
    KWB1 likes this.
  8. Julf

    Julf Evil brother of Mark V Shaney

    What makes you say that? I didn't see any max current specs, but 1000 W into 2 ohms is 22 A. The current limit of the nc400 is 26 A.
     
  9. dtd

    dtd pfm Member

    Well, they are reporting far higher 2 ohm capabilities than I've seen for nc500s. I actually have a pair of nc500 and nc1200s, with speakers that do drop closer to 2 ohms the bass response is clearly better on the nc1200. Which took me by surprise as you'd think the nc500 would handle it just fine. Guess it depends on speaker loads.
     
  10. dtd

    dtd pfm Member

    By better I mean far more refined, less flabby, controlled etc.
     
  11. Julf

    Julf Evil brother of Mark V Shaney

    The difference is probably the power supply.
     
  12. dtd

    dtd pfm Member

    Same identical smps1200 unit to each amp module. Speakers do have 4x 9inch bass drivers each, so probably crueller load than usual.
     
  13. dtd

    dtd pfm Member

    Oh sorry yes could be better PSU in m22 v2 yes.
     
  14. Joe Hart

    Joe Hart pfm Member

    How do you calculate this? what is the formula?
     
  15. Julf

    Julf Evil brother of Mark V Shaney

    I = sqrt(P/Z) ( so current is the square root of (power divided by impedance) )

    So in this case sqrt(1000/2) is 22.36
     
    naimplayer likes this.
  16. KWB1

    KWB1 pfm Member

    ouch.. too technical for me!
     
  17. naimplayer

    naimplayer Aspiring to be a halfwit.

    Very impressive. Regrettably this is incomprehensible to me but I do admire the ability to quote such information at the drop of a hat.
     
  18. Julf

    Julf Evil brother of Mark V Shaney

    I have to admit I had to reconstruct the formula from Ohm's law and the definition of power on the back of a scrap note. :)

    It is actually basic high school physics (or was, back in the day when I did high school). Nothing like the calculus, matrix operations or complex number stuff we got thrown into in freshman electrical engineering... :)
     
  19. JensenHealey

    JensenHealey pfm Member

    'tis only Ohms law and Power = Volts x Amps. Nothing more needed

    Crossed posting!
     
    Julf likes this.

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