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Drop O2 + SDAC DAC/Amp
01 / 20
Drop O2 + SDAC DAC/Amp
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Product Description
For the objectivist audiophile seeking a complete desktop solution, there’s the Massdrop O2 + SDAC: a DAC/amp that brings two great products together in one affordable, easy-to-use package. It features the Massdrop Objective 2 (or O2), the community’s favorite solid-state amp, alongside the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear Read More
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1
Sep 26, 2021
I am new to the audio world so forgive me for this!! What is the max power output if I were to use this on my pc? Is it 60O ohms? If so then it should be able to power my 58Xs and pretty much anything else I throw at it without issue for the most part, correct?
raansire7
1507
Sep 28, 2021
- Max output (33 ohms): 613 mW
- Max output (150 ohms): 355 mW
- Max output (600 ohms): 88 mW
FengShui
0
Nov 29, 2021
raansire7Also new here and saw this comment, but when you're describing the max output, that is from where exactly? Sorry just trying to understand the whole concept. I currently have this connected to PC and wall outlet and I am not sure if there is any other way to do it, so I am lost when you are describing the max output and mW.
TronFnknBlow
31
Dec 26, 2021
FengShuiIt's how much power the amp section outputs to the headphone jack. The power it produces/provides will depend on the impedance of the headphones. If all you've done is plug the box into the wall, and USB to the computer, it's not doing anything yet.
FengShui
0
Dec 26, 2021
TronFnknBlowWhat else needs to be done then? I thought it was pretty much plug and play?
allsmilesb
116
Dec 26, 2021
FengShuiAmp will provide as much power it can in relation to the ohms of the headphone. You don't need to do anything if you have power cable plugged into the dac/amp combo as well as the usb then computer automatically switches to sending audio out your dac/amp combo. If your not getting sound out of the dac/amp combo then you needed manual select the dac/amp combo as your output sound through the computers sound settings
TronFnknBlow
31
Dec 26, 2021
FengShuiYou need either headphones plugged into the jack in front, or analog signal from the DAC going out to another amp/speakers using the RCA-out on the back.
raansire7
1507
Dec 27, 2021
FengShuiWhat allsmilesb said.
IT IS plug and play. Once you have everything out of the boxes, it takes like 10-15 seconds in total to plug everything and selecting the DAC output on the computer if it doesn't do it by itself, which rarely happens.
It switches automatically almost always on the OS. Unless you use foobar2000 or another application that needs to know precisely if you want WASAPI, ASIO or KS output, it is as easy as plug it, turn it ON and hit PLAY.
CactaurCactus
8
Jun 18, 2021
When using the RCA outputs on the rear, does inserting a headphone into the front jack automatically mute the RCA output?
Anonawesome
24
Jul 11, 2021
Ignore the last poster. The RCA jacks are outputs. No, the unit does not disable the RCA outputs when you connect headphones unfortunately. So you will want a separate way to turn off your speakers.
Erenau
22
Jun 28, 2021
Is this powerful enough to comfortably drive the 6XX, or should I go for standard gain O2 amp only? Also does it make a difference to plug in DC power adapter when powered by usb?
Anonawesome
24
Jul 11, 2021
Yes you will want this or another amp for the 6XX headphones. A normal device (PC, phone, whatever) will have to "max out" the volume to get it to a barely-acceptable volume. The amp in the o2 dac/amp has more than enough power for whatever volume you want.
No you cannot use the device with just DC. It's super annoying, and I just had to buy a new plug after moving to a 240v country, but the open source patent doesn't allow anyone to modify the design to something more modern and reasonable.
Drogemuller
0
Jan 2, 2022
Hey so i am little new in the audio space and wanted to know if this solution is viable for my pc setup.
i have a usb mic with a 3.5 mm headphone jack which i wanna use so i can hear when i talk and there fore i was thinking that i could get a cable so that i could connect the dac/amp to the 3.5 mm headphone jack (with the usb c plug on the back of the o2) and then plug my headphones into the o2 dac.
the setup would look like this
pc to microphone to dac/amp with (3.5 jack to micro usb) to a pair of hd 6xx? could this work or would i not be getting any use out of the dac then?
this is the mic btw
Svive Leo Studio kit
Evshrug
3772
Community
Jan 3, 2022
Hey, some general info to help you out (I can’t see the date you asked, so I apologize if I’m raising the dead here).
Short answer: it would work, but not the way you think.
DAC stands for Digital to Analog Converter - computer files and PC games are digital audio sources, but all speakers (even the little speaker drivers in headphones or earbuds) require analog power to create an electromagnet > magnetic push/pull > vibration movements that we hear as sound. So, all PC audio paths require a DAC somewhere.
In your case, your Svive microphone is connected to your PC by USB (which is a “digital” connection) and it has a DAC and ADC inside, as well as a little amplifier with not enough power for your Sennheiser HD 6xx (probably). The 3.5mm Jack is an analog-only connection, so you wouldn’t use a 3.5mm to MicroUSB cable… since the Svive already did the digital to analog conversion, you would connect the analog 3.5mm headphone monitoring port to the analog RCA jacks on the Objective2 amplifier (or 3.5mm jack, if the O2 amp has one, I forget). Therefore, the O2 would amp the analog signal from the Svive, and it probably would be powerful enough for the HD 6XX.
Ideally, though, you would connect the Microphone to your PC with USB, and then connect the SDAC to another USB port on your PC. That way, you would let each component do what they do best: the Microphone would just be a microphone, and the SDAC is the clearer/more realistic sounding DAC while the O2 amplifier is powerful enough for the HD 6XX.
Thanks for reading my TED talk. I Hope that explaining things provided clarity for you, and didn’t sound too tech-jargon-y.
zach_snyder
0
Mar 26, 2022
I just got a pair of hd6xx and the o2 + sdac amp and as soon as I plug in my headphones and go to a video or something there is no sound, all the lights are on and my pc is registering that everything should be working but they just won't make any sound, I tried everything, even returning my headphones and getting a new pair and returning my amp and getting a new pair.
allsmilesb
116
Mar 26, 2022
If you have windows pc you need to switch your audio setting manual to your DAC. Most likely that is your problem. I have your exact setup and I had to manual switch the pc audio output.
(Edited)
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