Vsonic GR07 MK2 - stunning new cable! | bio-cel tech IEM | now with review - see 2nd post - Page 47

Originally Posted by goodvibes 

From what I've seen, covering the 80 vent just reduces the low bass and not so much the midbass. So Inks, have you heard both the MK1 and MK2 GR07. I liked the MK1 but couldn't get that treble quite tamed enough withoiut triples which I prefer to not use. Is the Mk2 less peaky and maybe a little better with nuance in general? I suspect that the MK1 hot spot just hit my ears harder than most,

From what i've seen it seems to reduce midbass more than subass. Luckily the vent is behind the driver so it's not a pressure vent and it likely has it's mechanism for sunction inside to avoid damage. I honestly don't think the IE80 is that promising if the ie8 is anything to go by (even reducing the midbass), but I do give benefit of the doubt. 

I haven't heard the mk1 in a while. The MKII, forgetting the MKI is a fine IEM, but I think the resonance from before are still there, but lessened or perhaps more balanced by other frequencies, one of the two. Somewhere between 7-9k can get a bit offensive (according to shotgunshane) with a shallower insertion but I have no issue with this as I can insert them deep enough to avoid this. There's a spike higher up at like 10k that adds sparkle, nothing bad. The ever present spike at 6k does make it a bit sibilant, but nothing too offensive imo as long as you keep your volume levels in check. According to Rin pa757 shure tips are good at balancing out the 6k spike without taking much away from the rest. I personally use Hybrids just because they're the most comfortable and i can actually achieve a deep fit them. 

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Originally Posted by shotgunshane 

I've narrowed down the FR band I have issue with to be between 7900 and 8500. Insertion depth doesn't seem to affect it, as it still happens with Meelec trips. Surprisingly EQ hasnt helped like I expexted b/c the overall tonality is affected by the time the ringing is removed. However, foam tips seem to remove the offending ringing. So perhaps silicone is my issue on the GR07? I never use foams but will be with the monster foams for the next couple of days. Hopefully this completely resolves the ringing.
Edit: also worth noting is that the ringing doesn't happen in every song, just certain songs and always cymbal splashes. I've got a list of affected songs now. I suppose they will become my test songs for offensive treble.

I too found that foam tips improved/solved that problem that a long time ago, as I almost only used mine with foam tips since I got them! The only silicone tip I tried with them were the pre-fitted tips for some minutes. I started almost imediately using the included foams, that aren't even that great, but the sound was much better for me!

Beware of those Monster foam tips, as they're too large for the GR07 (tested myself, and their quality is also some of the worst I've seen so far among foam tips) and you need a mod so they can fit! The best foams tips I've found so far for the GR07 are the Jays Foams (descontinued and very hard to find), the Comply Ts400 (require a mod) and some cheap foam tips from eBay (also need mod) that look like de-cored Shure Olives...

One thing about the Jays tips is that they tend to LOVE the GR07's nozzle, so much so that it's quite difficult to get them off.

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Originally Posted by Inks 

From what i've seen it seems to reduce midbass more than subass. Luckily the vent is behind the driver so it's not a pressure vent and it likely has it's mechanism for sunction inside to avoid damage. I honestly don't think the IE80 is that promising if the ie8 is anything to go by (even reducing the midbass), but I do give benefit of the doubt. 

 

I haven't heard the mk1 in a while. The MKII, forgetting the MKI is a fine IEM, but I think the resonance from before are still there, but lessened or perhaps more balanced by other frequencies, one of the two. Somewhere between 7-9k can get a bit offensive (according to shotgunshane) with a shallower insertion but I have no issue with this as I can insert them deep enough to avoid this. There's a spike higher up at like 10k that adds sparkle, nothing bad. The ever present spike at 6k does make it a bit sibilant, but nothing too offensive imo as long as you keep your volume levels in check. According to Rin pa757 shure tips are good at balancing out the 6k spike without taking much away from the rest. I personally use Hybrids just because they're the most comfortable and i can actually achieve a deep fit them. 

Things will change if fully closed but here's the effect of the adjustable vent, I can't find both graphs which used to be available but if I recall correctly, this was at the min. setting and the max setting looked like a straight line from 100hz down. I only mentioned it because I saw these graphs before.     

It was the 6k spike in the GR07 that I had issue with.

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Originally Posted by shotgunshane 

I'm not having any issues with the monster foams staying on.
Are these the jay foams you are referring to?
http://stereotypeaudio.com/our-brands/jays/jays-foam-sleeve-pack.html

Yes, the Jays Foiams are those ones in the link! They're one of my favourite foam tips, mainly to use wearing the GR07 straight down!

About the Monster tips, are you using them with those small red adapters? I bought a sampler pack recently because of the foams, and already sold as they were too large for my GR07, but I didn't use those adapters! What do you think of their quality, btw? I consider them really bad for my tastes and among all the foams tips I've tried so far! I much prefer soft memory foam as in the Comply's or in those eBay tips I mentioned that look like de-cored Olives! I also tried Olives on my GR07 without de-coring them (I still have them around somewhere), they were a pain in the *** to get on the nozzle and although the fit and confort was good, the sound wasn't. They kept all the problems I found with the silicone tips...

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Originally Posted by shotgunshane 

If they resolve my issue and are more comfortable than the monster foams, I can live with that. Shure olives are similarly hard to remove off thin nozzle IEMs. Tweezers usually help.
So is my link to the correct foams?

The Olives are much tighter than the Jays Foams! I can put and take the Jays Foams on my GR07 without much effort by now. I guess it's just the habbit... 

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Originally Posted by shotgunshane 

Oh I didn't even try to force the olives on. The monsters fit fine for me without the adapter. My issue with the monster foams is that they don't flex enough for ultimate comfort. I ordered the jays foam. Hopefully this will finally make me happy with the mk2.

That's strange, as the Monster foams I had were definitely too loose and would easily fall off! Like, if I placed the GR07 on my ears with them, the tips would stay on my ears when I took the GR07's off. And about the comfort, I also found them to be too hard and uncomfortable. No way those things are worth the price they cost! 

If you don't like the Jays Foams, I'll be happy to take the unused ones off of your hands for a reasonable price! 

Oh, and don't loose hope if that happens, as I find Comply Ts (the round ones) to be very good too, the problem is their price (for me in Europe) and durability! And then there's always the cheap foams from eBay... 

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Originally Posted by shotgunshane 

Thanks, I'll keep that in mind if I don't like them. For now it seems the MH1c tips are golden with the GR07. Silicone. Go figure.

Yep, that's what I'm using right now on my 07. It's funny because I actually prefer the genuine hybrids on the mh1c, so the stock tips are free for use elsewhere.

I think the base of the MH1C tip has a ring that literally grabs the ears, while the rest of the tip is relatively supple. That's what seems to make all the difference

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Originally Posted by shotgunshane 

I'm going to try some wider bore tips on the MH1c and hopefully let more of that nice treble through.

If you can spare a foam core to make it fit, the UE tips are actually very nice on the MH1