Doc B.
Member of the Trade: Bottlehead Corporation and The Tape Project, LLC
We will probably start taking pre orders next month. It does not have a tube output. I felt that the sonic quality of this product didn't warrant it.
Can't wait for the formal announcement and details Doc! The more tidbits I read about your and John's painstaking FPGA design, and John's recent posts on jitter and your careful (and equal) attenuation to all the various digital input receivers, the more excited I get.
One option would be take out the odac and put it in its own enclosure
In order to upgrade my headphone equipment I decided to get my self a Crack, which will go along with my newly Order Beyerdynamic T1(which will of course arrive tomorrow while I am still at work). At the moment I have some Sennheiser HD 650 and an ODAC/AMP combo from Epiphany. What I did not consider and totally forgot was, that this combo only has an headphone out for a connection to the Crack, which I understand is not a good option, as the the signal goes through the amp of the ODAC/AMP first before going into the Crack.
Now my question is, what are my best options until around the middle of next year, when my Geek Pulse should arrive, to remedy the situation.
First would be, still use the headphone out of the ODAC/AMP into the crack.
Second would be, plug back in my Asus Xonar ST and use the output into the Crack.
Third would be use the onboard sound outputs into the Crack, but that would not make much sense, when I can use the Xonar.
So any help would be appreciated to help me in this matter.
You didn't mention whether or not you were considering a new DAC?
It appears your Asus sound card has RCA line out jacks. Personally, I'd just use the RCA line out jacks from your Asus sound card, and plumb them into your Crack.
Some folks say that the choice of DAC and cans has a greater impact on the total sound quality than your amplifier. If you're willing to drop $1k on cans and $300 on an amp, I'd drop a few bills for a good DAC to go with the other fine gear.
Using a headphone output will double-amp the sound and introduce distortion. It's also possible to over-drive an amp if you turn the headphone output up too much. You have a usable DAC on that sound card, that's the way I'd go. I'd also recommend you spend some money on a better DAC.
The Crack will be a very diferent animal.
I currently have the SEX and waiting for the fully loaded Pulse X with femto, active/passive and LPS4 and not expecting them to
match each other at all.
Does anyone out there with a Crack and installed Speedball have any noise or hum when the volume is turned up say 75% or higher? I have a bit of noise when the volume pot is up that high and I had my buddy bring his over and he has no noise but a humming sound at that same volume level. Now I know there is no way anyone who isnt WAY hard of hearing would ever need to turn the volume up that high and yes both amps are dead silent until you get to those high volumes, I was just kinda wondering if anyone else's did the same thing. Oh and these effects were heard in multiple places around my house to eliminate the possibility of external noise, with and without a source/RCA cables plugged in and I even removed my Speedball and put the Crack back to stock on mine and it was dead silent all the way up so I know the slight noise at 80%+ volume on mine at least comes from the Speedball upgrade. All voltages and resistance checks look good with Speedball in and I have been soldering for well over 20 years so I know its not a build issue. I suppose it might be one of the components in the Speedball boards but I just wanted to ask around and see if anyone else was experiencing the same before I worry any further about it. As I mentioned its only with no music playing and the volume way higher I would EVER turn it up to.