jc9394
Headphoneus Supremus
- Joined
- Feb 6, 2006
- Posts
- 5,921
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- 60
I'm very happy with the setup driving the LCD and HD800, no plans to get the he-6.
Fishski13:
I do have 2.5" heatsinks with a 100VA trafo. I am currently running gain of x5, but I do have spare components to increase the gain to x8 if I needed to. So if I went on the path of high quiescent current with gain of 8, are you saying I should be able to drive the HE-6 properly? Or do you think it is still safer me to go with LCD3? The beta 22 is my only good amp and I am also concerned about it being too powerful (too little pot play) with gain of 8 for my other future headphones =P
I thought the HE-6 has sensitivity of 83.5dB/mW with impedance of 50Ohm? I do not know how to do the calculations myself, but will the numbers stay roughly the same? say for 115dB level, will the current draw be still similar to 340mA? Also, on the AMB website, it says the power output for B22 is 18Wrms into 8Ω unbalanced. Is that the maximum power output the amp is capable of in single ended mode regardless of the transformer rating? If so, what limits the output power?
Hello!
Have anyone use custom PSU for beta22. Something like this http://www.ebay.com/itm/ULN-PS7-Ultra-Low-Noise-6-0A-High-Current-Power-Supply-for-High-Quality-Audio/231109887461?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D261%26meid%3D3875593153771070086%26pid%3D100005%26prg%3D1088%26rk%3D2%26rkt%3D5%26sd%3D330869867631%26. This PSU with ultralow noise. Original PSU sigma 22 has 102.5 db noise against 132 on ebay's one.