HiBy FC6--R2R dongle DAC reborn
May 22, 2024 at 11:56 AM Post #241 of 245
To my subjective ears, and for the right headphones (tested with Beyerdynamic DT 700 pro x and Sundara), I can distinguish the difference in sound quality. Sorry, I can't give you mumbo jumbo words to describe it.
It is my personal take no claims anyone should agree. Forgot to mention that in my previous message.

I just did a controlled blind abx test with my wife: nos 1.04 vs nos 1.06 vs nos 1.07 with Dan's E3, Radiance and on the iem side Monarch 3 and Kiwi Quintet.

She has good hearing and experience listening to multi-kilobuck stuff I have been stupid enough to buy previously. She couldn't tell me any difference between the 3 FWs, but immediately recognized another r2r nos dongle I threw in for control purposes. Again, no intention to convince anyone, just had to check if I got something wrong previously.

May be its in OS mode where you hear the differences as they have been playing around with some of the filters parameters between FWs but these small changes should be hardly audiable between the same filter. I didn't spent time for OS mode in the test as it is a disaster to my personal preference.
 
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May 22, 2024 at 7:19 PM Post #242 of 245
It is my personal take no claims anyone should agree. Forgot to mention that in my previous message.

I just did a controlled blind abx test with my wife: nos 1.04 vs nos 1.06 vs nos 1.07 with Dan's E3, Radiance and on the iem side Monarch 3 and Kiwi Quintet.

She has good hearing and experience listening to multi-kilobuck stuff I have been stupid enough to buy previously. She couldn't tell me any difference between the 3 FWs, but immediately recognized another r2r nos dongle I threw in for control purposes. Again, no intention to convince anyone, just had to check if I got something wrong previously.

May be its in OS mode where you hear the differences as they have been playing around with some of the filters parameters between FWs but these small changes should be hardly audiable between the same filter. I didn't spent time for OS mode in the test as it is a disaster to my personal preference.
Did she hear difference between HDR on and off on NOS?

How was volume matching done? :wink:
 
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May 22, 2024 at 8:02 PM Post #243 of 245
May 22, 2024 at 11:09 PM Post #244 of 245
Did she hear difference between HDR on and off on NOS?

How was volume matching done? :wink:
Two FC6 one with 1.07 the other (newer one I bought for her) with 1.04 and then with 1.06.
Both at the same volume.

Well she tells me she does hear the HDR difference even in NOS mode (on the Monarch 3 iems)...I can swear I don't hear it myself... mystery! 🤣
 
May 23, 2024 at 11:14 PM Post #245 of 245
Hi please can i have all other FW versions? 🙏
I don't know that anyone else would want the original release to market firmware but I've sent it to you via pm :)
 
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