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Dust-by-Monday t1_je837af wrote

I have the 660s and I just got the 6XX... can't tell a difference between them on any source. I think I'm just broken or don't listen to the right songs. I dunno.

Straight out of iPhone with dongle is fine on both. Plugged into 3V RMS Mac, they're both fine. I don't notice any distortion anywhere with either one.

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lukelib t1_je8wt5d wrote

The difference is very very minute.

But I did notice the 660s was just a TAD more clear. Sold my 6XX kept the 660s. Powered by the Topping DX3 Pro+. Also the build quality is better.

This is my endgame

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verifitting t1_je8yd9m wrote

> I have the 660s and I just got the 6XX... can't tell a difference between them on any source.

660 is warmer/ has quite a bit less of treble. Maybe you're not so treble sensitive.

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5uperman8atman t1_je9lg7n wrote

I once had the 6XX and I thought it was a pretty boring headphone, so I returned it. Later on I got the 660S for a really good deal and I think it's utterly fantastic! So it's interesting to hear that someone couldn't tell the difference between the two. I have often wondered if maybe my 6XX unit was a little bit off. It gets so much praise that I always thought about trying it again.

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Jfox8 OP t1_jeeky67 wrote

No, there is a difference to me. Same issues with boringness, I just didn’t get what all the fuss was about (excluding price). There are many on here that hear significant differences as well, so you are not alone.

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emptypencil70 t1_jeg0wnb wrote

You also have to consider that people will force themselves to believe they hear significant differences because they purchased hundreds of dollars worth of headphones and dont want it to go to waste

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