Audio-GD NFB-11

Discussion in 'Headphone Amplifiers and Combo (DAC/Amp) Units' started by PacoTaco, Apr 25, 2016.

  1. PacoTaco

    PacoTaco Friend

    Pyrate
    Joined:
    Nov 24, 2015
    Likes Received:
    1,476
    Trophy Points:
    93
    I thought I'd may as well make a thread for this, seeing as I haven't seen one/couldn't find one in search.

    Essentially, in my opinion, this is probably the best under-$400 (or even $500) amp/DAC combos out there if the NFB-15 is any indication (or the NFB-28 for that matter.) Audio-GD does some magical with their implementation of SABRE that renders it not-crappy and glare-filled. I'm going to have mine tomorrow. Fun times.
     
  2. SpaceLaser

    SpaceLaser Friend

    Pyrate
    Joined:
    Sep 28, 2015
    Likes Received:
    145
    Trophy Points:
    43
    Location:
    Raleigh, NC
    Should be a solid unit. My NFB28 has served me well in the last year or so that I've had it.
     
  3. PacoTaco

    PacoTaco Friend

    Pyrate
    Joined:
    Nov 24, 2015
    Likes Received:
    1,476
    Trophy Points:
    93
    It served me well as well...until I sold it to you, haha.

    It's been a great unit so far.
     
  4. FakeOcelot

    FakeOcelot New

    Joined:
    Nov 18, 2015
    Likes Received:
    6
    Trophy Points:
    3
    So Paco, what are your thoughts on this unit? I am considering purchasing one for my secondary setup.
     
  5. PacoTaco

    PacoTaco Friend

    Pyrate
    Joined:
    Nov 24, 2015
    Likes Received:
    1,476
    Trophy Points:
    93
    It's a great smooth amp with tons of power. Some people find it warm (which is odd for a sabre) but I found it very neutral compared to the wolfson units.

    It has a certain impact to it that is quite nice.
     
  6. capetownwatches

    capetownwatches New

    Joined:
    Jun 20, 2017
    Likes Received:
    17
    Trophy Points:
    13
    Location:
    Cape Town, SA
    Strange that there isn't more regarding this superb piece of kit on SBAF.

    I have a 2017 NFB-11 (bought in March prior to the June NFB-11.28 version) and I just love it. All the upgrades (TCXO etc).

    Not sure what to call it though! Correspondence from Audio-GD stated 11.28 but it does not have the ES9028/Amanero upgrades. And it's not the 11.32 either...?
    Anyways, call it what you like it's a brilliant unit feeding my DT990/770 Pro 250 as well as K612 Pro. I have not heard a better performing amp/dac at anywhere near its price. Mid-Fi perhaps but it doesn't sound mid-fi to me. In fact I chose it over the Woo WA3/Modi 2 Uber/uDSD after some serious auditioning. I felt that I did not need to spend more to get the quality I was looking for and I still feel that way.

    I listen mainly to Hard Rock/Symphonic Rock/Metal/Classic Rock along with a fair bit of Classical and the NFB-11 works with all of it - a terrific all-rounder.
    Source is i5 Win7 Pro - MC20 (ASIO) - AQ Pearl

    Be nice to read more feedback and opinions of the NFB-11 on this forum.
     
    Last edited: Sep 14, 2017
  7. HitmanFluffy

    HitmanFluffy Hoping to see real genitals someday!

    Anti-SBAF PSYOPS Banned
    Joined:
    Sep 26, 2015
    Likes Received:
    1,532
    Trophy Points:
    93
    Location:
    Austin, Texas
    Incredible, this right here is once-in-a-lifetime level lo-fi.
     
  8. purr1n

    purr1n Desire for betterer is endless.

    Staff Member Pyrate BWC
    Joined:
    Sep 24, 2015
    Likes Received:
    89,992
    Trophy Points:
    113
    Location:
    Padre Island CC TX
    I have the NFB-1 amp here. It's supposed to be the better than the amp on the NFB-11. I'm also using a tweaked Gungnir Multibit as source.

    With two resolving but tonally different cans, the HD650 and HD800, the $200 Vali 2 is a better amp than the $555 NFB-1. Heck, even the Magni 2U is better.

    The strange thing is that the Vali 2 isn't exactly the clearest sounding amp, but the NFB-1 sounds just as veiled, albeit in different way. The Vali 2 has capacitor veil, but it's still rather involving. The NFB-1 has a pervading dullness. Kind of gives it a sense of warmth - not in a good way. The NFB-1's presentation also seems kind of disjoint. Sure all amps have a tonal character, but in this case, the mids don't quite mesh with the bass and treble. Last time I'm listening to Kevin Gilmore telling me to buy AGD instead of Schiit.

    As for why the Sabre works, it's probably because the AGD amp circuit dulls the heck of of anything that is feeding it.

    It's just time to move on from AGD before we lose more community funds. We should have learned the first time from the S19.
     
    Last edited: Sep 14, 2017
  9. k4rstar

    k4rstar Britney fan club president

    Pyrate BWC
    Joined:
    Jun 11, 2016
    Likes Received:
    6,951
    Trophy Points:
    113
    Location:
    Toronto, Canada
    LOL, pervaded dullness is right. Totally dead sounding, with blunted transients and complete lack of micro-dynamics. Listen to some 90s alternative and power riffs sound like porridge. It seems to be most offensive in the upper mids which is also where the ESS nasties reside the most heavily, can't help but wonder if that's intentional. I feel really bad in retrospect that I wasn't harder on the amp section when I reviewed the NFB-28 way back, but I was naive and lacked the experience.
     
  10. Scubadude

    Scubadude Almost "Made"

    Joined:
    Jan 23, 2016
    Likes Received:
    332
    Trophy Points:
    63
    Location:
    Pretoria, South Africa
    The NFB11 is a great sounding unit in my book. This was never intended for publication and comes from a private whatsapp chat, does reflect my thoughts at the time despite many typos and poorly made comments ...

    Right some thoughts on the Jotunheim and NFB 11. I had the Jot on loan for a week or so and more recently the 11. The stints were about 3 weeks apart, so no AB listening.
    Jot is a very nice amp. No real complaints. It does everything rrasonably well with no obvious shortcomings. I had it on exclusive use for most of the week, and at one point remarked that it could be end game kit for all but the nuttiest of enthusiasts.
    However when switching back to more exotic gear I realised what was missing. The subtle graduations in tonality and timbre and loudness that creates a more vivid, emotionally engaging experience is somehow a little compressed and bleached. Having said that in absolute terms the differences are rather small.
    The 11 reminded me of the Audeze Deckard. A less powerful Deckard and one that gets ruffled a bit easier, but the same rich and warm yet clear and detailed signature. It has all the soul the Jot doesnt and to my tastes it is the more enjoyable (but not most accurate) of the two. But like the Jot the 11 has shortcomings. At low to medium listening levels it sounds wonderfully composed, but as volune increases dynamics become compressed, images gets blurred, details get glossed over and the illusion snaps out of focus.
    As pure DACs I would rate these two equals.
    Both are excellent choices and offer sound value for money. I do however think they will appeal to different listeners. Also the Jot's balanced mode is not matched by the 11, the merits of which may end up in another revolving door argument.
    In terms of build quality both are very well made but compromises were made ... the Jot has plastic 6.35mm socket and the 11 has facia toggles that look and feel plasticky.
     
  11. Peter78

    Peter78 New

    Joined:
    Jan 20, 2016
    Likes Received:
    18
    Trophy Points:
    8
    Hmm. I have the NFB1 amp, and it sounds pretty good to me with my headphones (HE-6, HE-560, HD-650, LCD-2.2c, E-MU Teak, ...), though I haven't tried nearly as many amps as the folks here have (and basically no "high-end" amps). I also have a Bottlehead Crack w/Speedball, but I really only use that for the HD-650's. Now I'm interested in trying some other amps with my cans, especially if I can get something reasonable that will sound significantly better.

    For those that find the NFB1 amp to be dull, would you attribute that to the preamp or amp section (or both)? I ask that question, because I do find the preamp functionality (including the stepped attenuator and remote control) to be very convenient with my active monitors, but if the preamp is underwhelming too, I'd be interested in exploring other options there, as I probably use those speakers as much as I use headphones.

    Thanks for any input that can be provided. It's certainly enlightening to hear specific impressions about my amp (even though unfavorable) from folks with greater experience than I have. And here I thought that the NFB1 amp was a good deal for its feature-set...
     
  12. purr1n

    purr1n Desire for betterer is endless.

    Staff Member Pyrate BWC
    Joined:
    Sep 24, 2015
    Likes Received:
    89,992
    Trophy Points:
    113
    Location:
    Padre Island CC TX
    I don't have any mid to high-end orthos on hand, but I surmise that the NFB-1 is better match for them than the Sennheisers. The Senns are not power hungry and have less current demands. The Vali 2 would be horrible for most orthos.

    As for topology, I do not believe that the NFB-1 has a separate pre and amp section. They are one and the same. I heard one of the big dedicated AGD Master series preamps, and it was underwhelming. Veiled and as with the NFB-1, having that pervasive dullness thing going on, but less of it.

    As for powered monitors, I generally don't worry too much of what's feeding it. It depends. The ones with built in AD DA DSP and Class D amps: it really doesn't matter much. I'd just get something that sounds and measures clean if not reusing whatever is handy.
     
    Last edited: Sep 15, 2017
  13. Ray

    Ray Friend

    Pyrate
    Joined:
    Oct 27, 2015
    Likes Received:
    1,302
    Trophy Points:
    93
    Location:
    On the range
    I had the nfb1, didn't reealize how bad it was until my bw2 arrived. I think that why audio gd is so popular on head-fi. What have they heard to compare it to
     
  14. Scubadude

    Scubadude Almost "Made"

    Joined:
    Jan 23, 2016
    Likes Received:
    332
    Trophy Points:
    63
    Location:
    Pretoria, South Africa
    Would love to see some price relevant GD vs Schitt vs xxx blind listening results.
     
  15. k4rstar

    k4rstar Britney fan club president

    Pyrate BWC
    Joined:
    Jun 11, 2016
    Likes Received:
    6,951
    Trophy Points:
    113
    Location:
    Toronto, Canada
    Are you saying a blindfold will make the AGD not sound like porridge? Or will it make the Schiit sound like porridge? I'm not sure which alternate reality is more scary.
     
  16. purr1n

    purr1n Desire for betterer is endless.

    Staff Member Pyrate BWC
    Joined:
    Sep 24, 2015
    Likes Received:
    89,992
    Trophy Points:
    113
    Location:
    Padre Island CC TX
    A blindfold isn't necessary to tell the difference between butter chicken from an crowded hole-in-the Indo-Paki joint and butter chicken from Whole Foods made by progressive skinny white people who love animals and hate butter.
     
  17. Pilsnerpunk

    Pilsnerpunk Friend

    Pyrate Contributor
    Joined:
    Dec 6, 2016
    Likes Received:
    177
    Trophy Points:
    43
    Location:
    Canada
    What's xxx blind testing? Sounds like something from 50 Shades of Grados.
     
  18. purr1n

    purr1n Desire for betterer is endless.

    Staff Member Pyrate BWC
    Joined:
    Sep 24, 2015
    Likes Received:
    89,992
    Trophy Points:
    113
    Location:
    Padre Island CC TX
    [​IMG]
     
  19. Elnrik

    Elnrik Super Friendly

    Pyrate
    Joined:
    Jan 10, 2017
    Likes Received:
    8,974
    Trophy Points:
    113
    Location:
    Denver CO
    Home Page:
    Damnit, do you know what Guinness does to my sinuses? You bastards. You owe me.

    Where the hell did I put my blindfold...

    LOL
     
  20. Scubadude

    Scubadude Almost "Made"

    Joined:
    Jan 23, 2016
    Likes Received:
    332
    Trophy Points:
    63
    Location:
    Pretoria, South Africa
    Not sure but I do know a teaspoon full of Schiit destroys a bucket full of porridge despite having an insignificant, practically imeasurable effect Schiit/Nonschiit Ratio.

    Now how did we get from pervaded dullness to perverted dildos?
     
    Last edited: Sep 15, 2017

Share This Page