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- Users: deaconblues
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Darkvoice 336i & 336SE Tuberolling PartII
I just got my Darkvoice 336SE from Massdrop yesterday. I had to open it up and fix a disconnected solder joint at the headphone jack's ground. It's working great now, but unfortunately I failed to pay attention to the orientation of the bottom panel. Could someone please look at the...- deaconblues
- Post #1,115
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
220mA should be enough. The BOM even suggested a 12vAC 200mA power supply. That's what I use on the O2s I built, and I've never experienced any explosions :D. That having been said, I guess it wouldn't hurt to increase his headroom a little bit. JDS labs uses a 15vAC 500mA supply. The O2...- deaconblues
- Post #5,027
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
Does your ican power supply output DC voltage? The O2 need an AC power supply.- deaconblues
- Post #5,025
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
RevA had compatibility problems with a very small percentage of motherboards. Its power regulation would become unstable and cause severe distortion. RevB was made to fix this problem. If you don't have this problem, there is no reason to replace your odac. Even if you have the problem, it can...- deaconblues
- Post #5,018
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
What's your O2+ODAC's configuration? Does it have the separate line out from the ODAC in the back or does the O2's line-in do double duty as input and output? If it has separate line in and line out, the O2 should disconnect the ODAC when you plug a cable into the line-in jack. Just...- deaconblues
- Post #4,588
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
There should be a usb port on the back of the unit. If there is no usb port, then there is either no odac.... or they accidentally installed a rear plate with no cutout for the usb port.- deaconblues
- Post #4,431
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
That little wire loop is just for connecting the amp's ground to the case in order to help reduce the chances of electrical noise. I don't see how it could affect connectivity with the headphones and/or input jack. The most likely scenario is that the cheapo jacks on the O2 are worn out. This...- deaconblues
- Post #4,422
- Forum: Headphone Amps (full-size)
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The Sennheiser HD580 Impressions Thread
9 years ago, I painted my HD580's headband and grills. It looked cool back then. Today, not so much lol- deaconblues
- Post #1,485
- Forum: Headphones (full-size)
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Headphones you regretted buying the most
AKG K701 - I bought this twice! That damn soundstage kept tempting me. But there wasssss alwayssss sssssomething about it that didn't agree with my earsssssss. Jecklin Floats Model II - I keep it more for amusement than for actually listening to music.- deaconblues
- Post #1,707
- Forum: Headphones (full-size)
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Oldest headphones you currently own and use.
My HD580, which was already old when I bought it used 9 years ago. It's probably closing in on 20 years old. I did replace the drivers with HD650 drivers though. The original drivers suffered from soft springs on their cable connections which constantly caused the audio to cut out...- deaconblues
- Post #13
- Forum: Headphones (full-size)
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O2 AMP + ODAC
I think the phone refuses to power the DAC if it asks for more current than what the phone's software allows. Using the hub tricks the phone into providing power. There is an article offering a more detailed explanation at JDS Labs http://blog.jdslabs.com/?p=838- deaconblues
- Post #4,415
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
It works when I do Phone > OTG adapter > USB cable > USB hub > USB cable > ODAC A direct connection from Phone > OTG adapter > USB cable > ODAC does not work for me. This is not the case for all DACs. I also have a y1 DAC, and it works perfectly well on my phone without having to...- deaconblues
- Post #4,413
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
It doesn't work when I hook it up directly to my Android phone (the Oneplus One), but it works if I connect it to the phone via a USB hub. The phone provides power to both the hub & DAC. I don't need to use a separate power source.- deaconblues
- Post #4,401
- Forum: Headphone Amps (full-size)
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O2 AMP + ODAC
I just built myself an O2 with ODAC rev B, and I'm very happy with it. It's just as capable of powering my HD600 as my M^3, but at the same time, it can also run IEMs with a totally quiet background. I really appreciate its very neutral presentation. The O2+ODAC simply takes a recording and...- deaconblues
- Post #4,399
- Forum: Headphone Amps (full-size)
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Sennheiser HD 600 Impressions Thread
And the truth comes in such a small package. It's a much better match for my Intel NUC than the M^3, which is gigantic in comparison. I painted my HD580 before. I thought it looked awesome (see my sig). However, time has been unkind lol. I think it's time for me to buy HD600 headband...- deaconblues
- Post #11,741
- Forum: Headphones (full-size)
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Sennheiser HD 600 Impressions Thread
I finished building my O2 + ODAC, and it is definitely able to handle he HD600. At first, I thought my M³ had better impact in the bass region, but after quickly switching back and forth between both amps, I found that I had trouble hearing any differences. I'm not at all confident that I...- deaconblues
- Post #11,736
- Forum: Headphones (full-size)
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Objective2 + ODAC Rev. B Combo?
ODAC Rev B is an update to the ODAC which fixed a compatibility issue with the USB ports in a small percentage of PCs. Rev B also adds 88.2khz output and seems to have better measurements than the original. As for which one to buy, I don't think you really have a choice in the matter if you...- deaconblues
- Post #2
- Forum: Introductions, Help and Recommendations
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Sennheiser HD 600 Impressions Thread
Silly me. When I went for that $229 HD600 deal, I should have known that I wasn't just gonna spend $229. Ever since I built my Gamma 1 DAC and M^3 amp 6 years ago, I've been satisfied. They sound fantastic with my HD600. But in this thread I learned about the O2 amp & DAC which have been the...- deaconblues
- Post #11,636
- Forum: Headphones (full-size)
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Sennheiser HD 600 Impressions Thread
10 years ago, I used the HD600 with a cmoy amp. I found it rather nice, but quickly sold it off to try other stuff. Last week, I got tempted by the $229 HD600 deal and placed an order. I'm now running a far more respectable setup(gamma1 DAC and M^3 amp). I was blown away when I tried the...- deaconblues
- Post #11,549
- Forum: Headphones (full-size)
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HD 600 vs HD 650
I used to have a HD600 back in 2005. I also bought a HD650 shortly afterwards and had both headphones for a while. I sold both off to try a lot of other headphones, but I missed the Sennheiser sound, so bought an old used HD580. Its drivers were failing with constant connectivity issues, so I...- deaconblues
- Post #405
- Forum: Headphones (full-size)
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USB wifi dongle that works in Ubuntu
I ordered a usb 802.11n adapter on ebay, from a seller in hong kong. It was branded "Jensen" and luckily for me, it turned out to have the Ralink RT2870 chipset - which has open source linux drivers avaiable. I checked out the seller's current auctions and found that the Jensen wifi adapters are...- deaconblues
- Post #5
- Forum: Gear-Fi: Non-Audio Gear and Gadgets
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$350 amp for HD600
Another good one to look out for is the M3. Be quick to snap that up if one should show up for sale.- deaconblues
- Post #4
- Forum: Headphone Amps (full-size)
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The MODDED Sennheiser HD 580 appreciation thread.
The ancient HD580 mentioned in my sig now has HD650 drivers, thanks to inspiration from Linuxworks' post. Take a look at the part of the headband that says "HD580 Precision". Ancient I have another little HD580 project that is currently on the backburner. Once I get around to ordering a...- deaconblues
- Post #34
- Forum: Headphones (full-size)
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How would this DAC work with my LD MK III and HD650s?
I don't think you can rock out with your guitar using the MIDI interface. MIDI doesn't transmit actual audio data. It transmits instructions to and from synthesizers and instruments. (very crappy and simple explanation )- deaconblues
- Post #9
- Forum: Headphones (full-size)
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Recommendation for headphones as a gift for a friend
I'm surprised that the oldschool 80 ohm DT770 pro hasn't been mentioned yet. Just $1 under your price limit BEYERDYNAMIC DT770 DT 770 PRO 80 Headphones BRAND NEW - eBay (item 270376624550 end time May-18-09 14:13:15 PDT)- deaconblues
- Post #23
- Forum: Headphones (full-size)