Astell & Kern ACRO L1000

Discussion in 'Portable Headphone Amps' started by alphanumerix1, Oct 11, 2017.
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  1. Giraku
  2. obsidyen
    Interesting product. It's nice that it also drives speakers.
     
    Peter Hyatt likes this.
  3. sweetben
    it seems nuts, that nothing has really been written about this amp/dac. People go nuts for their portable players. I am tempted to pull the trigger on one, but I'll wait till I read review or two. Thinking about the L1000 or the Quesstyle CMA400i.
     
  4. obsidyen
    I agree... This seems like a really nice amp/dac for bedroom. You can drive small speakers and headphones with one device.
     
  5. TYATYA
    On pics we see sp1000 -usb- acro - hd800s. Hope the amp have same sq sp1000 line out.
    Anyone can list some small PASSIVE spk desktop size would be use on acro?
     
  6. obsidyen
  7. haiku
    Just got the confirmation from a trustworthy source that the amp is only for beginners.
     
  8. Wyd4
    Why is that?
    Is it easy to use with good instructions?
     
    Kuh-Fi likes this.
  9. Giraku
    OK. I got mine yesterday!!

    [​IMG]
    [​IMG]

    Currently testing with various HPs and IEMs comparing against SP1000Cu and Hugo 2.
    As for the HP driving power, I tested it with my friend's Beyerdynamic T1.2 and had to turn the volume up to ~90%.

    Also it seems like the filters are not working (bass boost and high gain mode). Maybe it requires a firmware update.
    @JasonNYC, do you have any info about the filters and firmware update?
     
    alphanumerix1 likes this.
  10. JasonNYC
    @Giraku not sure about the filters, I haven't actually played with a retail version yet. The pre production unit that I used had all of the filters working correctly. I am at CES with our team. Let me ask them for more info and get back to you.
     
    Astell&Kern Stay updated on Astell&Kern at their sponsor page on Head-Fi.
     
    https://www.facebook.com/astellnkern/ https://twitter.com/astell_kern https://instagram.com/astellnkern https://us.astellnkern.com support.inc@iriver.com
  11. Giraku
    Thank you, @JasonNYC.
     
  12. sweetben
    At minimum it really is a great looking amp.

    Going off topic for a sec...I notice you have the new green Fostex 900's. Assuming you've heard the red ones, have you noticed any differences in the sound?
     
  13. Giraku
    Yes, I heard the red ones. Actually, I have been a fan of TH900 for a while but did not buy because of the color. The green one fits me very well.
    Soundwise, they got exactly the same driver/cable except for the finish color. I don't hear any difference at all. So I think it is safe to assume that the limited emerald green edition is essentially the same as the good old red ones in the sound department.
     
    alphanumerix1 likes this.
  14. Giraku
    Ok. I have been playing with L1000 for 2 days now. It's still premature to review it, but I just want to share my initial impressions.

    L1000 is a well built small amplifier that doesn't require much space to set up. I love the soft clicking feel of its epic sized volume knob.

    My signal path is:
    MacBook Pro (2016) -> Roon 1.4 -> L1000
    It is nice to have a variety of connection options for headphones and IEMs. I'm using the following connections:
    HE1kv2 -> XLR balanced
    TH900 -> standard stereo unbalanced
    Tribute 7 -> 3.5mm unbalanced
    JH Layla 2 -> 2.5mm balanced
    Andromeda -> 3.5mm unbalanced

    Again it is a bit premature to conclude its sound characteristics at this moment. But compared to Hugo 2 and SP1000Cu, L1000 is smoother and fuller sounding with less resolution/separation/air. For its price, it is quite enjoyable with its slightly laid back presentation.
    I will share more detailed review after a couple of weeks of listening.
     
  15. Giraku
    I forgot to mention one thing in my previous post.
    L1000 does not have "Low" gain mode so that some audible hiss exist with Andromeda. "High" gain mode is doing nothing at this moment. Or at least the effect is not obvious to my ears.
     
    alphanumerix1 likes this.
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