Bifrost 4490

I use something similar to this. Not sure about the minute technical merits of dividing the source signal between two amps, but I could not notice any difference. Bifrost puts out 2V RMS and I did this on my Gungnir Multibit which also outputs 2V through RCA output. You may have to turn up your amplifier a bit more than you used to with only 1 amp, but again should all be fine.

 

First, one should allow at least one hundred hours of burn-in time before attempting to evaluate the new board. If possible, let it "warm up" for 24 to 48 hours without playing any sound; then play a wide variety of sound from music, TV, and others continuously for about 4 to 5 days. Leave it playing overnight with the speaker volume turned down, but keep ti playing! After that burn-in you can fairly evaluate the performance.

Second, depending upon quality of implementation in your laptop, PC , Blu-ray or CD player, the coaxial digital or optical will produce the best sound quality. USB is a distant second.

 

No.

 

Probably better ways to go about contributing here...

 

Life's too short for burn in and burn in procedures. Even if there was some small percentage of perceived improvement that wasn't placebo, wouldn't it be more enjoyable getting there by listening to good tunes? Yes schiit multi bit dacs have some warm up time, but 4490 is more than good to go out of the box.

 

Subjective observations followed by objective data.

Good rule for much in life as well.

 

Shit man, my 4490 sounds identical from new and cold to running forever. This Modi Multibit however.. sounded like a pop can when first fired up.

 

Sounds to me like you're barking up the wrong tree then:

@Marvey:

I think you're fully capable of recognizing that when someone posts outside the measurement subfora that they are most likely posting their opinions, feelings, and subjective impressions. I tire of your demands, acting like people owe you explanations and disclaimers, while you get away with the same pseudo-"science" arguments that are ridiculed when made by certain other members. I mean c'mon, you posted in the very thread (before it was closed) where this same issue was just hashed out and where the above quote originates, and now you're in another thread posting the same stuff.

 

@zonto, well argued.

 

That may be due to the way R2R DACs work, they need to be up to temperature to work accurately within spec. High end R2R DACs used in medical applications (CT scanners and the like) are usually placed in little "chip ovens" (I don't know the correct term) which bring them to an optimal operating temperature rapidly after power-on. Your average audio R2R DAC setup doesn't have this feature, and depends on the heat of operation to achieve it.

Before they're fully warmed-up, R2R DACs tend to be somewhat less linear and accurate than peak performance as per their spec. It's not crazy audiophool bizniss to suggest leaving them powered on for at least a couple of hours prior to use- don't confuse it with silly "burn-in" rituals.

(Go on, someone better informed, swoop in and explain this properly, using the correct terms!)

 

Hmmm...IMO you're trying to be too black or white and authoritative. I sometimes struggle to STFU and have learned this site is one that forces some practice and humility there, in no small part due to mockery. You are missing a subtlety in this thread that you won't make evident by continuing to engage. IMO, JM2C, YMMV and all that.

 

Thanks to zonto for helping me understand.
@cizx, I'm surprised there's not more cursing because you are a bully, the Bill O'Reilly of SBAF, throwing tantrums that are seemingly endlessly indulged. I have yet to see you post anything of support or encouragement (Friends is part of the name of this place) except to @MuppetFace, but that's only because it related directly to something you have been through, a classic narcissistic trait.
@Marvey seems to have some regard for you, but I don't see why.
Prove me wrong, please.
Oh, and someone please quote this .

 

By saying 'people' you are of course including yourself.

 

The problem in this thread you speak of is inconsequential when compared with your attitude and the divisiveness you cause on the site.

I had you on ignore too for the last few weeks because it seemed that whenever I clicked on a thread, there was attitude, a multiplicity of dislikes, and irrelevant, out-of-context posts. That is, until I clicked on the "Show ignored content" button, saw you were at it again, and all was made clear.

Let me be more blunt than I was before. You contribute nothing of real value to this site. Your posts can be boiled down into three main categories: (1) show me the "evidence" of your subjective impressions, (2) insults, and (3) don't-tell-me-what-to-do temper tantrums.

You may not like me, @Wilson, and a slew of others, but we aren't the ones that use this site to push people around and attempt to control others as a way to deal with whatever issues we have in our personal life. Nor are we so temperamental and self-involved that our posts in multiple threads are frequently deleted or moved into their own separate thread to fester.

What's been going on is atypical, even for you, and it is more than the typical New Englander speak-your-mind mentality. I know you don't like unsolicited advice, but I'm choosing to give you some anyway. You need to find a healthy way to deal with whatever is going on. I hope that you can see that, and choose to manifest positive change. This site is obviously not giving you, nor will it give you, what you really need.

 

I just leave my DACs on 24/7. Interesting that the ModiMB runs hotter than the Jot it seems. Sounds great though I play a lot of games and the gunfire and upper registers sound so much more tonally accurate, grenade blasts are thick and chewy, and everything is just thump'n. I'm looking forward to experiencing the HD650's on this combo vs the 400i to see where my preferences settle.

 

Not sure if you jest... so...

How does that work out in real life? I mean, when you must decide whether you enjoy this icecream over the other, or this toilet paper over that toilet paper, or that diaper over the other diaper, do you still turn to the scientific method? I mean, do you start measuring the diapers, determining their density, look for the chemical composition and purity of materials, set up careful double-blind tests, etc., etc.? Or do you just trust your butt-o-meter, and go with the one that seems to work best?

 

Hah, I go through phases, depending on mood.

Overwatch sounds fantastic in either though, through the Jot. I'm always a bit bummed when I join my semi-regular group to play, and have to switch to my gaming headset with a proper noise cancelling mic. Those super-accurate spatial cues in the sound are so nice..

 

It wasn't clear just how hardline your position was, and this reminisces way too much of hardline "objectivists". I do agree that some consistency framework can be useful, but even then "anecdotal evidence" is a staple of the scientific method (see e.g. @ultrabike 's masterful example). Compare 0.00035 THD with 0.15 THD... Hey, the first one sounds better!

My choice of examples above (icecream and stuff) was to exemplify that not all can be dealt with purely via the scientific method, certainly not in a sane existence and in the time-frame of a human being. There are MANY stuff in this life, like buying a car or a house or moving to a city, that are WAY more important than buying and choosing the next DAC fad, that simply cannot be dealt by with measurements or the scientific method: you just pick a city given what you feel will work best for you and your family, and swing it. Same for a car: You may look at metrics till your eyes pop out and roll down, but even then no metric will tell you how the car will feel when driving it. And even then you won't be able to do anything fancy like DBT'ing or the like. So even if you'll rely on 'try, evaluate, pick', in many aspects it'll still be an incredibly subjective process.

I guess it tickles me when people go haywire on "anecdotal evidence", when this is something we fully rely on as a species in our daily lives for things infinitely more critical than choosing a DAC...

PS No need to pollute this thread any further. I'll see myself out...

 

Proper mic? I just use a 3.5mm that sits on my desk and I rock the 400i's in CSGO/BO3 Zombies. No way I'd drop this setup for a headset with a mic attached. Push to talk, with input gain cranked up.

 

Aye, after many years of online gaming and unpleasant VoIP experiences, it's out of consideration for other players that I use a noise cancelling mic, and more specifically one that isn't on a simple desk stand.