i luvmusic 2
Headphoneus Supremus
- Joined
- Aug 27, 2013
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Check the bottlehead forums crack page for a list of possi le tubes
Thank You!
Check the bottlehead forums crack page for a list of possi le tubes
The other problem is the Crack's channel imbalance is more obvious at low volume positions. Since my DAC has a pre-out volume control, I leave my Crack volume to about 50% and use the volume control on my DAC to adjust the volume. This makes the channel imbalance hardly noticeable.
The other problem is the Crack's channel imbalance is more obvious at low volume positions. Since my DAC has a pre-out volume control, I leave my Crack volume to about 50% and use the volume control on my DAC to adjust the volume. This makes the channel imbalance hardly noticeable.
The other problem is the Crack's channel imbalance is more obvious at low volume positions. Since my DAC has a pre-out volume control, I leave my Crack volume to about 50% and use the volume control on my DAC to adjust the volume. This makes the channel imbalance hardly noticeable.
Hi!
I do the same, it helps when your DAC take 24 bit signal as then volume control in your Mac/PC then still works. May I ask what causes the imbalance, since I experienced that as well and lowering the source volume helps but I like to tackle the cause, rather than the symptom (when I hopefully buy @punit Crack in a few days....). So is there any fix that a beginner can implement? A new poti/volume control maybe?
Cheers,
K
That is cool if you can do that. I use an UberFrost though, so it is what it is.
I have done that to a point, but my dac/pre sounds best between 12 and 3. so I don't want to move it much lower then that.
Very informative things here. i likely won't do all the mods. I'd like to only really do the ones that will make the biggest impact on the sound. It seems that changing the caps and adding the choke would be the easiest and most straight ahead. the volume pot seems intimidating.
Side note. I use my crack with the hd600 and dt880. does anyone else need to add the resistors to give more play in the volume control? I can hardly move my volume with the 600's before its too loud. But I'm not really hip with putting resistors in the signal path.
I'd like to be able to use the pot up to about 12:00, but there is no way in hell that is possible at this point. can't really even get it to 9:00.
Got my speedball installed today. It would have been pretty quick but I put the heatsink and transistors on the wrong side of the big board and then played merry hell getting them unsolder end and removed to out them on the right side of the board. After that the only issue was space.. My bent metal copper crack has a small interference issue with the volume pot and the right ride small speedball board. I rotated the board about 5 degrees and bent one of the vol pot leads out of the way. The correct solution will have to be a much longer standoff. Thankfully the copper crack design is taller and has lots of space.
I'm also getting a spike over 20v on startup at the headphone jack, the final test. At least I think I am, the auto ranging multimeter changes scale up and down so quickly I'm not sure. I'm going to have to video the multimeter and play it back slow to be sure. All the other tests are inspec.
Sounds great though.
From memory there's a mod posted as a sticky at the top of the Crack threads on the Bottlehead forum to help deal with the voltage spike on the HP jack.