MrEleventy
Headphoneus Supremus
- Joined
- Oct 24, 2012
- Posts
- 2,329
- Likes
- 159
you'd want to set the volume in Windows @100.
I just recieved my O2+Odac combo and i'm wondering if its normal that the computer volume control affect the volume of my amp.
Thanks for the replies,
I have noticed something else: when there is no sound playing trough the O2/Odac i can put the volume to the maximum with the low 2.5x gain and i wont hear a single noise coming out of my headphones. But when i open a music program or when my computer sees that a sound is about to be played i can hear noise. (I believe the noise is still there when the song is playing)
Is there any fix for that?
Also it is major when i put the 6x gain on it, it sounds like i'm in the middle of a rain forest...
Thanks.
I played music on Mac and the noise problem dissapeared. I looked at what could be the problem on Windows and i think it could be because my version of windows is "Not Genuine". On startup, there is a pop-up saying that "Windows Update" and other things may not work because my version is not genuine anymore. So i suspect that this could be the cause even though windows seemed to have installed all the required drivers on first usb plugging.
Could this be caused by something else?
Maybe the Windows audio output format is set to 16 bits ?
Maybe the Windows audio output format is set to 16 bits ?
Quote:I have not yet received it I thought to dig up some info beforehand. Sig DJ has 115db sensitivity i think.
98db is the sensitivety of the signature pro. i was wrong.
i cant seem to find the sesitivity of the the signature djs... on the ultrasone site, part of the specs say "SPL: 115 dB", is that sensitivity? sensitivity rating is usually given together with "@ 1kHz 1mW" or something of the sort...
either way, ill be glad to hear how they fair with *2.5 gain, especially if their sensitivity is 115db, which would make them even more sensitive than the m-100.
anyone here with ~32ohm impedance and ~103db sensitivity cans? if so, is *2.5 gain too much for them, are do you still get manageable volume control without channel imbalance?
Does the M-100 count? You mentioned it earlier. 2.5x gain is too much (I have the 2.5x/1.0x installed).
With my K 701 I have the volume on my computer set to ~60% and the O2 at ~8 o'clock at 1.0x gain.
Speaking of all of this, can anyone explain the source vs amp volume control thing? I used to have the source at low volume, O2 on max until I read otherwise. It doesn't make much sense to me. If I need to adjust the volume, wouldn't it be easier to have amp set at max volume, source at a comfortable loud volume, then just reduce the amp volume from there? That way you don't have to worry about any channel imbalance problems, nor having the amp constantly at a "low" volume and adjusting everything again for different headphones (M-100 for example). Not to mention having the Windows boot-up sound blast at full volume every time you boot because you leave the volume on the source (computer) at max. With the other way I used to have it, I would just swap headphones, lower amp volume accordingly, not worry about channel imbalance at all. Can't get much simpler than that.
while were on the subject, how do i take the volume knob off? i want to open up the O2 and take the batteries out and i cant seem to figure out how to take the knob off, which i assume is necessary.
and as for the second part of your post, im given to understand that for maximum fidelity, you want to control volume with your amp, not your source. having your source on 100% will deliver the maximum quality, and if its on less, you could be delivering like, 12 bits of digital audio to your amp, as opposed to 16 bits, if the volume was at 100%. granted, i have no idea if this is true, even if it is, i dont know how audible the difference will be and ofcourse, im in no way an authority on these issues.
yes it counts! thats the one im talking about! maybe i will "go for the snip"... ill wait and see if i do go for the m-100 first, if i do, ill see how they fair with the *2.5 gain. worst comes the worst, ill send an email to john and ask for some guidance...
while were on the subject, how do i take the volume knob off? i want to open up the O2 and take the batteries out and i cant seem to figure out how to take the knob off, which i assume is necessary.
and as for the second part of your post, im given to understand that for maximum fidelity, you want to control volume with your amp, not your source. having your source on 100% will deliver the maximum quality, and if its on less, you could be delivering like, 12 bits of digital audio to your amp, as opposed to 16 bits, if the volume was at 100%. granted, i have no idea if this is true, even if it is, i dont know how audible the difference will be and ofcourse, im in no way an authority on these issues.
while were on the subject, how do i take the volume knob off? i want to open up the O2 and take the batteries out and i cant seem to figure out how to take the knob off, which i assume is necessary.
Just take the front plate off and the whole board should slide out easily (If your O2 build is like the JDS Labs one). No need to remove the knob.
Not sure if JDS uses a set screw or just a press fit knob, but either way should be simple enough. If it's a press fit just pull it off, if a set screw loosen the screw and it'll fall off.
There's a set screw on the volume knob. IIRC, all you need is a tiny allen wrench.