I have had this issue happen too.

  Speaking of musicians knowing... My wife plays the violin and I asked her to listen to the Bifrost MB today playing Tchaikovsky's Violin Concerto In D by Toshiyo Eto. This is a Japan import JVC RCA CD saved in lossless format and played over USB.  The amp is O2 and headphones are HD600.  The...

Thank you for the detailed response.  I am also already a happy owner of the Bifrost MB. 

Thank you!  A couple of questions:   - What are the two humps in the jitter curve around 9 and 13kHz ? - What's going on at 1kHz @ -90dBFS ?

I just received my upgraded Bifrost MB.  I ordered my Bifrost May 2012 -- 9 months after the first units started shipping (Aug/Sep 2011).  My unit's RCA jacks are not even gold plated.  The Biforst I received today has gold plated RCA jacks and the optical input has a shutter.  This probably...

How does the Yggdrasil compare the Bimby in your opinion? 

I once changed the GE211 tubes in one amp to the coveted United 211 tubes with pellet getter.  It sounded soooooo much better to me.  I asked my wife, who is a violinist, to listen.   Me: What do you think? Wife: What did you do? Me: I changed the tubes. Wife: It sounds like crap. Do we...

Hi isquirrel, Thank you very much for the great comparison.  You mentioned earlier that the Elrogs have 250 hours on them, while the Takatsuki's have 150 hours.  Are you noticing any more changes in the Takatsuki's as you use them more? I'd be very interested to hear your opinion once both...

+1 on being sick of analytical listening.   My Bifrost has opened up, and I am finally starting to enjoy the music.

I finally got to do some listening after a few hours of burn in each day for the past 3 days (about 15 hours). The sounds has opened up quite a bit. It's clear, not bright and reaches high and low noticeably more than the original board. I (maybe strangely) found that I needed to re-tune the sub...

I definitely also experienced burn in with the original board on the Bifrost. I remember being underwhelmed initially. @AiDee, Jason didn't give an exact time, he just said it can take a while.

LOL, I considered rubbing it with the cat for good luck :-)   I emailed Jason and was told it can take a while to open up. I'll report back... currently burning it in.

LOL, I considered rubbing it with the cat for good luck :-)   I emailed Jason and was told it can take a while to open up. I'll report back... currently burning it in.

Could I have blown something on the card while installing it?  I'm assuming it would just not work in that case.

Hi Byronb. Yes, I did a listening session before and everything sounded as good as usual.  The bifrost is feeding into a custom 211 Tango-based amp, Zu Union speakers, and REL B3 sub. The sound is definitely opening up but since it's night I can only listen at very low volumes now :-)

Hello, this is my first post to head-fi.  I just installed the Uber and Gen2 boards today.  Thanks to the contributors here who shared pictures and instructions, the upgrade was very smooth. (One screw holding the power inlet was loose to begin with -- someone tightened too much at production)...