Tried to upgrade firmware by OTA, and my unit stuck on message "FW Downloaded 0.46%" What the safe way to reset it? I wish I downloaded the file first :smile: Can I just switch it off? UPD after 5 mins: just pressed on Back button and everything was ok :ksc75smile:

I like the same genres. My suggestion is Yamaha as1000-1200 (no ad, just IMO) for these speakers. I use cayin HA-1a mk2 as preamp. Tubes for coloring, and transistor for amplification, it reveals the soul of the music.

What kind of music do you listen to?Sometimes I pair my ha1a mk2 with Yamaha 1000 + Dali mentor menuet. It sounds amazing. But if you listen hard rock genres take a look at another speakers. IMO

Hey guys, I'm a bit confused with ordering PSVANE EL84 pair of tubes.I found: EL84-S, EL84TII T series MARK II. Which one is suitable for 1AMK2? Should I look for EL84 exactly (without -s or mk2)? Has anybody compared PSVANE EL84 with EL84 Genalex Gold Lion? Which one is better?

Finally bought both Cayin units :D Enjoying now! Actually I was a bit shocked how neutral this setup sounds even with vacuum tube mode on DAC.

Thanks a lot for your response @Andykong but currently it doesn’t look like a DAC’s problem. It works with all platforms I could to test including android phones. All I need now is sort this issue out with fiio tech support

Trying to connect my m15 to Cayin idac6 mk2 via usb. All I hear is noise in Fiio music, all other soft players provide only silence . What might be a problem? I tested this dac with windows, macOS, android. All works perfectly except fiio m15 player.

Yesterday bought this unit. The biggest disappointment is it doesn't work with android devices! I can't use my fiio m15 as music transport via USB. Interesting is it software or hardware disadvantage? Is it possible to add such a feature with updating firmware?

Hey guys, I'm going to buy Cayin IDAC-6MK2 as DAC for Cayin HA-1A MK2 (as I understand @Andykong has same setup). Is it good pair?

Your experiments with tubes are really interesting, keep us updated please

I plan to order this amplifier for my Audeze LCD-2C. Is there anybody who use such a set? I read that HA-1A MK2 with stock tubes not going well with this headphones. I'd be really appreciate with any advice

That’s great! But we should know answer but what it purpose of this modification? Did you manage to improve some parameters?

Thanks! Nice setup! I'm trying to compose something similar guys who own this unit mentioned good "silent" and affordable tubes above in this topic.

Hey, is there anybody who uses this amp as preamp? Please share your impressions