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Monoprice Monolith Liquid Spark - By Alex Cavalli

Discussion in 'Headphone Amps (full-size)' started by ufospls2, Apr 4, 2018.
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  1. pcdubc
    Eyeing the Liquid Spark for my first ever amp. Considering the Atom as well, which is said to have better on-paper measurements, but comes at a 13USD premium due to shipping.

    Would love people’s thoughts, thanks!
    PlantsmanTX likes this.
  2. Shroomalistic
    I went from an objective 2 to the spark and it was huge difference. I plan on holding on to mine for a while. It’s got power to run argons and it sounds great. It’s built great, very solid. Well worth the price, should cost more when compared to other amps
    PlantsmanTX, waynes world and pcdubc like this.
  3. atomd
    Used mine last night and noticed it now has some issues. Static when turning the volume knob and hissing/light static at higher volume levels.....levels I wouldn't have it turned up to . Doesn't seem noticeable at normal levels which is at least good. Not a dealbreaker at this point but not super impressive either.
  4. dBel84
    Don't assume that you are hearing the amp noise floor. Ground the inputs and repeat. If you don't hear it this time round, the noise is coming from the source.

    With that said, if I use sensitive headphones with almost any amp and turn it up to max, there is a low level white noise from the power supply, this is true on power amps too.

    Rectifiers switching on and off induce noise into the audio band, smps switching is supersonic but anything that takes AC and converts it to DC will induce some level of noise. We just hope that it is in the micro volt range so as not to impact the obsession of music reproduction.

    If this noise originates in the source, it gets amplified, which is why we can sometimes hear it when we crank up the amp beyond normal listening levels.

    nick n likes this.
  5. atomd
    It makes this noise when moving the volume pot above say 50% while turning it and then the less noticeable (lower volume) but continuous noise begins when leaving the volume 70% and above. Switching just the amp out to a different amp with everything else the same makes this problem disappear.
    Last edited: Mar 17, 2019
  6. blackdragon87
    posts like these make me look forward to receiving mine in the next week or so =)
  7. atomd
    Now mine won't even turn on. Only got to use it for a few hours. Not super impressed.
  8. runeight
    Hi. Just for my own edification, what exactly is it doing? Does the red light not come on when you push in the power button? Or does it turn on but not connect to the headphones?
  9. atomd
    Red light doesn't come on. Power supply works properly. It had other problems before it quit though. I mentioned that issue in this thread too. It's under warranty of course but what a pain.
  10. runeight
    Yeah, that just sounds like a defective unit. So far as I know there have been a few, but not that many of them. It is a pain though. I know. :triportsad:
  11. Wildcatsare1
    Dr. Cavalli, I’ve managed to lose my powe supply, do you know a source for replacement? Thx!
  12. runeight
    Not in the US that I know about. Maybe MP can put you in touch with US manuf office to get a new one??
    Wildcatsare1 likes this.
  13. Wildcatsare1
    Thanks, I’ll contact MP.
  14. GearMe
    FYI -- have been listening to Beyer DT880s using this amp on shuffle; so a wide variety of music...nice!

    Not sure what prompted me to do so as I usually listen to Beyers and Senns on OTL amp but glad I did :dt880smile:
    blueninjasix and waynes world like this.
  15. tim0chan
    Just got mine this weekend and I love it already. Drives my hd6xxs well and also iems without problem. Leaving it to burn in this week b4 checking in next weekend
    fuhransahis likes this.
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