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The discovery thread!
Feb 12, 2013 at 3:27 AM Post #6,992 of 100,554
Here are my early impressions of the HDA-100 amp:
 
Even though its still not sounding its best because of the balanced vs unbalanced issue, I think this amp is well worth the asking price.
 
So far I think the only problem leaving it unbalanced is a slight hiss in the signal when the music is quiet. I know some people might be bothered by it but I don't mind it as much, not to mention I have a feeling it'll be solved if a balanced input is used. So far with the tone controls turned down, I think the natural sound of the amp is slightly warm. The mids are lush and detailed and makes female vocals sound great, while the bass has good extension and texture. The treble is still detailed and clear, but it doesn't have the airiness that AT cans can do. On the other hand, I love how it tames sibilance on tracks very well because of it. The treble and bass controls work well, and can turn any headphone into absolute bass monsters, even more than the ZO2 amp. It kinda starts getting boomy and intrudes into the mids past the 3 o'clock position though. Another feature is the balance control, which adjusts the "center position" of the soundstage. All these options just make this amp really fun to mess with.
 
Even when its still unbalanced and not sounding it best, this is probably the best value for an amp yet. The unit has plenty of power and the tone controls give it great flexibility compared to other amps. The only thing I can hold against it is the (probably fixable) hiss, but other than that I wouldn't hesitate to recommend paring this with an ELE dac for a super budget-friendly setup.
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Feb 12, 2013 at 3:39 AM Post #6,993 of 100,554
So I was planning on using the Somics as my first pair of experimental modding headphones, but then I came across a modding thread for the Sennheiser 400 series cans. The results looked promising and fun.
 
http://www.head-fi.org/t/646251/sennheiser-hd-428-hd-428s-modding-guide-january-2013
 
I really like the idea of pulling it apart and adjusting to my desired sound signature.
 
Questions:
1. Has anyone compared a modded hd-428 with the somics + 840 pads (sound wise)?
2. Has anyone tried opening up the somics and doing any modding inside?      Follow up: How'd it go?
 
Feb 12, 2013 at 1:23 PM Post #6,996 of 100,554
So I was just browsing the dac amp section on Amazon.com and I see this.  This unit is being sold for a blow out price. If you guys want what is a rebranded Fiio E7 for $40.. Take a look http://www.amazon.com/Pyle-Home-PHE7AB-Headphone-Amplifier/dp/B004V9GPHS/ref=sr_1_124?s=electronics&ie=UTF8&qid=1360693194&sr=1-124&keywords=dac+amp
 
Feb 12, 2013 at 1:52 PM Post #6,997 of 100,554
dsnuts said:
So I was just browsing the dac amp section on Amazon.com and I see this.  This unit is being sold for a blow out price. If you guys want what is a rebranded Fiio E7 for $40.. Take a look http://www.amazon.com/Pyle-Home-PHE7AB-Headphone-Amplifier/dp/B004V9GPHS/ref=sr_1_124?s=electronics&ie=UTF8&qid=1360693194&sr=1-124&keywords=dac+amp
ir
Click to expand...

I think you just cost my curiosity $40

I wonder if i could use it on my galaxy s2 with an OTG micro usb cable. I would buy it right now.
 
Feb 12, 2013 at 2:17 PM Post #6,998 of 100,554
Quote:
mackem said:
Are these legit/genuine?
 
http://www.ebay.co.uk/itm/Genuine-JVC-FX3X-Xtreme-Xplosives-Inner-Ear-Headphones-Deep-Bass-HA-FX3X-/290829961278?pt=US_Computer_Headsets&hash=item43b6d1083e&_uhb=1
Click to expand...


I'm getting a pair from this seller within 2-3 days, I'll report back in this thread once they've arrived!
They definately look like the real deal compared to the fakes shown here: http://bbs.kakaku.com/bbs/J0000003711/SortID=15271348/
 
Feb 12, 2013 at 2:32 PM Post #6,999 of 100,554
Quote:
kamakahah said:
I think you just cost my curiosity $40

I wonder if i could use it on my galaxy s2 with an OTG micro usb cable. I would buy it right now.
Click to expand...

 
I'm not sure you can use OTG with the S2. At least that was the impression I got when I was looking into it.
 
Feb 12, 2013 at 2:53 PM Post #7,000 of 100,554
Oh man I am finding the deals today. I have one of these. I use this dac amp for burning in my phones. I thought they sold out of these but they seem to be back in stock. http://www.amazon.com/Ha-Info-U2-PLUS-Headphones-Amplifier/dp/B006NQF4M4/ref=sr_1_419?s=electronics&ie=UTF8&qid=1360698659&sr=1-419&keywords=DAC+AMP  This little unit is excellent for Op amp rolling.. It has more power than you think too.
 
Feb 12, 2013 at 3:35 PM Post #7,001 of 100,554
Quote:
dsnuts said:
Oh man I am finding the deals today. I have one of these. I use this dac amp for burning in my phones. I thought they sold out of these but they seem to be back in stock. http://www.amazon.com/Ha-Info-U2-PLUS-Headphones-Amplifier/dp/B006NQF4M4/ref=sr_1_419?s=electronics&ie=UTF8&qid=1360698659&sr=1-419&keywords=DAC+AMP  This little unit is excellent for Op amp rolling.. It has more power than you think too.
Click to expand...

 
Dude, stop with the deal spammin lmao
 
My wallet is already starting to hate you haha 
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Feb 12, 2013 at 3:47 PM Post #7,002 of 100,554
Damnit, I bought one.
Quote:
dsnuts said:
Oh man I am finding the deals today. I have one of these. I use this dac amp for burning in my phones. I thought they sold out of these but they seem to be back in stock. http://www.amazon.com/Ha-Info-U2-PLUS-Headphones-Amplifier/dp/B006NQF4M4/ref=sr_1_419?s=electronics&ie=UTF8&qid=1360698659&sr=1-419&keywords=DAC+AMP  This little unit is excellent for Op amp rolling.. It has more power than you think too.
Click to expand...

 
Feb 12, 2013 at 3:49 PM Post #7,003 of 100,554
Here is some more info on what op amps guys was trying out with that HA-info. http://www.head-fi.org/t/572262/ha-info-u2-plus-usb-dac-headphone-amp-review-the-best-inexpensive-usb-dac-headphone-amp#post_7762664
 
 
 One of these days I am gonna order this Op amp and try this. I bet this sounds way more expensier than what this all costed.
 
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I agree it's the best budget USB DAC headphone amp but forget the OPA you mention 
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 and put a serious OPA like the Audio-GD OPA-EARTH and you get a true killer amp!
Ok you have to sacrifice some aesthetical but it worth the effort...The sound of stock HA INFO U2 PLUS is quite decent but with the Audio-GD OPA the difference is spectacular
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With stock and OPA2134 the cymbal sound like 192kbps mp3, with the Audio-GD it sound like 900kbps FLAC. The modified HA INFO U2 PLUS is even better than my previous setup:Fubar II USB DAC and Little Dot MK4 SE
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Feb 12, 2013 at 7:48 PM Post #7,004 of 100,554
I bought that last U2 that was left.. Figure for 40 dollars it's definitely worth a try.. I didn't like the ele dac at all so I'm hoping this will be an upgrade over my xonar dg =).. Will leave thoughts after I receive and burn it in
 
Feb 12, 2013 at 7:53 PM Post #7,005 of 100,554
Quote:
dsnuts said:
So I was just browsing the dac amp section on Amazon.com and I see this.  This unit is being sold for a blow out price. If you guys want what is a rebranded Fiio E7 for $40.. Take a look http://www.amazon.com/Pyle-Home-PHE7AB-Headphone-Amplifier/dp/B004V9GPHS/ref=sr_1_124?s=electronics&ie=UTF8&qid=1360693194&sr=1-124&keywords=dac+amp
Click to expand...

it looks like the e7... but is it really?
 
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