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Just got mine and had about 3 hours of troubleshooting to get it to work. You need to manually select the evaluation drivers to get it working. The drivers it picks by default wont work. Also the cd that came with it was defective so I had to download the drivers from their website. I even resorted to downloading drivers from XMOS but had limited success. For the price it is fantastic, build quality is top notch, feels solid, and I have a gold lion tube in it right now. Too early to tell but one thing is clear, it isn't strong enough to power an AKG K70x/Q701. I haven't had a chance to test my HE-500s on them since they are home and this is my office setup. My Q701 sounds good but I can tell where detail and bass is missing compared to my Lyr/Bifrost combo. It feels a slight bit anemic. But a lot more lively than other sub 150 dollar amps I've tried. This will do for the office.
Edit: Changing to 24bit 192 causes driver to crash. Had to reboot. Drivers aren't that stable. The most i listen to it... The more I notice the bass missing :( BUT plugged in a coworkers K550 and it sounds great.
Keeps crashing/failing. I noticed it was set to power save mode in the utility so I changed it to always on. Hoping this fixes it. This is starting to become an annoyance. Either have to reboot the machine, repick drivers, rollback drivers, power off/on the amp, or reconnect the usb to get it to be recognized each time. It's becoming a headache.
Hello, out of curiosity, which operating system are you using?
Both Win7 and Win8. I finally got it stable. I used the drivers from XMOS v.2.23 directly, manually chose one of the eval drivers. Then to get it stable I had to turn off power save mode. If you were continually using the amp/listening to music you would get this bizzare distortion every now and then. Also if you did not use the amp while it was on, the usb light would go off and the device would disappear even though it is powered on and the only way to get it recognized again was to power it off/on or remove/reconnect usb cable. Setting it to always on through the program resolved the distortion and disconnects. It works now. It powered the Q701 but not to 100%. I can tell a clear difference between it and my Lyr. I did not bother trying to the HE-500s, if It cant do the Q701s @ 100% then it wont power the HE-500s. It is however nice for the price if you get over the driver/setting issues. I used a Gold plated Lion tube and gold plated JJ Tesla tube.
Note: I would like to state I got 0 help from their support, never replied back to me. I even asked them to give me a link to the drivers on the CD because I know the one on their site is a diff version than the one on the CD.
Have you tried this with your HE-500 yet? I'm wondering if itll drive my HE-400i's - but right now..i guess my next amp will be a Project Sunrise 2 - this one looks good, has good specs, but i feel like its too good to be true
I may bring in the HE-500s. I ended up selling the amp, some tubes, and Q701 with some cables to a co-worker of mine. He had less problems getting it running on his machine even though same laptop/image... Only problem he had was the power save feature. He had to change that and it seemed to resolve any issues he had. I don't know why his experience was much easier than mine.
My co-worker/friend is very happy with the setup.