Absolutely not. The spec is completely fake: There is no chance it can drive 3.8 watts into 600 Ohm :jecklinsmile: They don't even know difference between "voltage" and "wattage".

Try connecting the dongle to one of the amplifiers I listed. Set Windows and application volume to 100% - this will make the dongle work in DAC mode. Control the volume on the amplifier.

No sound card will handle such headphone. You need watts, not volts. Every DAC can put out 2 volts RMS (it's the standard), even without an amplifier.

SMSL SH-6 at 187$ and SMSL SH-8S at 230$ will both drive 99.9% of headphones on the market: https://www.aliexpress.com/item/1005004037125738.html https://www.aliexpress.com/item/1005006669959139.html

Better - maybe Good - no I would look into anything with at least 500mW into 32Ohm.

Absolutely not, it will sound bad. HD5XX has very low sensitivity - 93.5dB, so you need a proper amp, regardless of the low impedance. The lower the impedance, the more current will flow, and small amps are not a great source of current. Driving voltage is much easier than driving current.

Better than what model?

I burned X3 for ~250 hours and listened just now for a few minutes. Initial impression - X3 is a great improvement over X6, and sounds fairly close to LBBS. I wouldn't be surprised if it's simply a renamed LBBS (with a horrible cable), to justify increasing the price - 90$ vs 48$.

Here are (almost) all the coupons for the AliExpress sale: This list is missing the "8$ off 69$" or "8€ off 69€" coupon - code is the same as other coupon codes, but ends with "08". BTW, looks like outside of US and "others" the sale ends at different time - for example, in Europe at midnight...

I have received it, but didn't get a chance to test it yet - all my Pro 82s are either in remote storage or in remote office - and I haven't visited either one in a while... However, I'm very confident that even if it won't have synergy, it will at least sound great anyway. Right now there is a...

You are about to be disappointed - X6 is nowhere near as good as LBBS. There are 3 last ones available for sale: https://www.aliexpress.com/item/1005001464323686.html I bought 8 LBBS so far, so I can look with confidence into the future :jecklinsmile:

You should get Yincrow X6 over Temperament X6 regardless of other earbuds - they sound better despite lower price.

You should buy Temperament LBBS - it's much better than both Temperament X6 and Yincrow X6. It's 48$, and there are last 5 units available on AliExpress (it's not made anymore): https://www.aliexpress.com/item/1005001464323686.html

So I ended up buying it last night - 75$ instead of 89$ thanks to coupons and discount codes. If it's using the exact same Chinese 12AU7 tube, the chance for synergy is really high. If not, I may need to tube roll. Either way, I'm sure it will be either best sounding or second best sounding...

I concur. It's not that RW3000 is a bad earbud, I just don't want to keep listening to it - too boring. I'd rater listen to Yincrow X6 over RW3000.