@lucasbrea This is a comparison I did a while back between the SD7 and the SD7 plus.
So I have been going back n forth from the Hybrid SD7 to the Plus SD7 and the more I get used to hearing the plus model the more I can tell the differences between the two models
I was testing out the treble on both and vocals in the mids and my initial thought of the hybrid model having more treble energy was correct. The hybrid is more closer to a U signature vs a W on the plus model. However the real differences comes from the treble area. Upper treble on the plus model is clearly heard but is not as emphasized as the Hybrid. There seems to be a bit more emphasis in the 5-7K range in the hybrid model too. The tonality is a bit brighter on the hybrid due to the upper mids and highs having more energy on the hybrid model vs the Plus.
While both models are good at staying away from sibilance. It is the plus model that win for vocal refinement with a touch less treble emphasis especially upper treble. The plus model has a slight warmth and better overall smoothness to the sound while the hybrid model is a bit more dryer sounding. The real crazy thing about these 2 is how bass emphasis is very identical to each other. While one is clearly using a dynamic for bass and you would figure that is where the hybrid model will clearly win over the plus.
I don't think so. The plus has an agility to the bass end the hybrid model is lacking a bit in. It is not a slow bass per se but due to the bass clearly being emphasized. You have to be a fan of bass in order to like these two models. The bass adapts to each tune better on the plus. Big and rumbly when it needs to be and no where to be found on bass light tracks.. I think tonality wise the bass end of the plus model also has a slight edge over the hybrid model. The bass just sounds smoother especially in the subs.
So in conclusion. I still think the hybrid SD7 is excellent but the more I am hearing the SD7 plus the more I am appreciating the slight refinements from bass to the mid ranges and toning down treble end some from the hybrid model. Some guys might actually prefer the more energetic treble end of the hybrids more so that is a matter of taste and to be honest the bass end is where I find almost identical in function and form with the edge going to the plus model for being able to pull off a very dynamic sounding bass end while using some BAs to do so. Very impressive.
Balanced out of both earphones are excellent and I think guys who are willing to give these a try will be rewarded with a very dimensional enjoyable earphone for not that much money. Hidden gems. both of em ABSOLUTELY!