Nuforce Dac-100 News
Feb 9, 2013 at 1:08 PM Post #152 of 292
Is it my unit or the hissing noise is on the high side?  I am using a 32 Ohms headphone so maybe that's the problem.  I'll try a higher impedance headphone when I get back to my S.F. house.
 


I found noise levels to be high with low impedance headphones. The literature recommends 120ohm and up. The only low impedance headphones that did well with it was my Fostex. Actually, the Fostex sound *great* from it. I would say the T50rp and Senn HD600 were my favourite pairings with it. The LCD2 was good, but definitely appreciated the extra headroom from the HAP-100. 
 
Feb 9, 2013 at 3:23 PM Post #153 of 292
Quote:
 
I found noise levels to be high with low impedance headphones. The literature recommends 120ohm and up. The only low impedance headphones that did well with it was my Fostex. Actually, the Fostex sound *great* from it. I would say the T50rp and Senn HD600 were my favourite pairings with it. The LCD2 was good, but definitely appreciated the extra headroom from the HAP-100. 

 
 
The spec for the 100 lists A-weighted SNR at 96db which is rather mediocre for a modern DAC making it bang-on 16 bits, that said noise at 96db should still be inaudible and the manual says Recommended Headphone Impedance: 32-300 Ohm so no clue that low z phones should be an issue, my $90 DAC/amp is utterly silent even a full volume into both 250ohm and 32ohm.
 
I can understand allowing some deficiencies in cheap gear a free pass but audible noise on a grands worth of DAC/amp at listening levels seems a bit generous ! The fact that my mass-produced jelly bean chip eBay DAC/Amp is audibly silent when my rather more expensive and boutique parted M^3 is not pisses me off a tad, fortunately even on the disappointing noise-wise M^3 noise is only an issue at very very high volumes so perhaps it does not matter ...
 
Feb 9, 2013 at 5:13 PM Post #154 of 292
Their literature is a little bit inconsistent in terms of what impedance headphones are acceptably. I've seen the 32-300, some say over 100, some say over 120. Some say low impedance high efficiency. Etc.
 
The lineout is quieter than the headphone out. But still, the noise is present. I'm curious how the UDH performs, as it's supposed to be the same but without the optical/coax inputs, but the specs are better.
 
Feb 9, 2013 at 10:19 PM Post #155 of 292
Quote:
 
I wish I knew how strong the headphone output is on that thing. 
 
 
 
 
Cool. Looking forward to it.

on the Harman Kardon 430? IDK but it sure does drive the DT990 600ohm like no other I have experienced. I made a desktop sound system out of it last night and hooked my B&O BeoVox S45's up to it and it sounds super. the UDH-100 to the HK 430. 
 
Feb 9, 2013 at 10:23 PM Post #156 of 292
Quote:
Their literature is a little bit inconsistent in terms of what impedance headphones are acceptably. I've seen the 32-300, some say over 100, some say over 120. Some say low impedance high efficiency. Etc.
 
The lineout is quieter than the headphone out. But still, the noise is present. I'm curious how the UDH performs, as it's supposed to be the same but without the optical/coax inputs, but the specs are better.

my Sennheiser HD 598 headphones sound beautiful out of the UDH-100's headphone socket. The HD 598 is 50 Ohms. so do the AKG K702's 62 Ohms sound wonderful 
 
Feb 10, 2013 at 1:07 AM Post #157 of 292
If the HD598 is quiet on the UDH-100, then it definitely has an improved noise floor over the DAC-100. 
 
Feb 11, 2013 at 1:00 PM Post #159 of 292
i'm a happy udh-100 user, it pairs with my Q701 very much to my liking. The RCA PRE out is excellent VFM, I compared it with a DAC and Pre 6 times the cost of the udh-100 and the udh-100 lacked only a slight amount of resolution. For the money, I am very happy with it. It will soon feed a pair of genelec 0840's.
 
Feb 11, 2013 at 11:39 PM Post #160 of 292
Might have asked this before, but has anyone compared the DAC-100 to the Lavry DA-10/11? I'm curious to find out which is the more neutral sounding.
 
Feb 12, 2013 at 1:10 AM Post #161 of 292
I think Jude did early on. You'll have to dig through the thread. 
 
edit: here's one... http://www.head-fi.org/t/615533/nuforce-dac-100-news/90#post_8937209
There might have been one somewhere else, but I don't remember for certain.
 
Feb 12, 2013 at 4:06 PM Post #163 of 292
I really do enjoy the sound I get from the pairing of the HD 800 and DAC-100. I'm pretty content with it for now. I've heard a Stax SR-009 with a LL amp and that sound was quite excellent, but I'll be waiting a while before I decide to get the SR-009. The HD-800 and DAC-100 is pretty close.
 
Feb 12, 2013 at 4:37 PM Post #164 of 292
Quote:
I really do enjoy the sound I get from the pairing of the HD 800 and DAC-100. I'm pretty content with it for now. I've heard a Stax SR-009 with a LL amp and that sound was quite excellent, but I'll be waiting a while before I decide to get the SR-009. The HD-800 and DAC-100 is pretty close.

I just which it had a tad more bass :/ I'm going to try the foam mod thing on innerfidelity and maybe get a copper cable.
 
Feb 13, 2013 at 4:01 AM Post #165 of 292
Quote:
i'm a happy udh-100 user, it pairs with my Q701 very much to my liking. The RCA PRE out is excellent VFM, I compared it with a DAC and Pre 6 times the cost of the udh-100 and the udh-100 lacked only a slight amount of resolution. For the money, I am very happy with it. It will soon feed a pair of genelec 0840's.

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