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New RHA IEMs: The MA750i and MA600i - Page 14

post #196 of 410
T
Quote:
Originally Posted by n0str3ss View Post

Those foam tips look so small

I think Comply have large size foam tips if you need it.
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post #197 of 410

I know but still, I like some nice stock foamies :D  All the trouble and time to get new ones, oh jeez, I have not time and money for that.

post #198 of 410

Hi All,

 

After reading the recent comments regarding the fit of the MA750s, we thought it might be useful to post on the matter.  Here is what our design team had to say:

 

The MA750 cable is sheathed in a type of thermoplastic elastomer (TPE) which is heat set into a curve designed to hook over the ear.

There are two main reasons for wearing an IEM in this fashion; support and noise dampening. The cable running behind the ear stops the weight of the cable and splitter etc. from pulling at the earphone in the ear. This is essential with a cable of this weight/copper content.

The second reason, noise dampening, relates to fit. Microphonics (the issue of unwanted noise from cable rubbing) is most effectively dealt with by the cable running behind the ear, the ear acts as a damper and is the most effective way of cutting out microphonics.

There are three ways of building an IEM to fit in this way:

 

-Standard cable which the user places behind the ear. This works ok from a microphonics perspective but doesn’t stay in place as well as we’d like. We’d recommend that all IEM’s are worn in this way if they haven’t been designed with over ear features.

 

-Memory cable around ear. This solution most commonly uses a malleable metal wire between the outer and inner sheath to give the first few inches of the cable ‘memory’. On the upside this stays in place well and is easily adjustable. There are a few downsides; the wire can break through at either end and damage the cable or strain relief. The form needs to be created and will never be the exact shape of the ear, therefore the dampening effect is significantly reduced. This method also does not ‘move’ with the head/ear the way a flexible cable running over the ear would.

 

-Heat treated hook. We chose this solution for the MA750s because we felt it was the best of the above. It stays in place, is more comfortable, less prone to faults (due to wire breaking the cable) and is most effective for microphonics. Also, compared to the memory cable method, it is a better fit for most people – the substantial nature of the cable and rubberised feel help a lot in this when compared to thinner cables. 

 

So, the hook or kink in the cable is set at an angle which works very well for most people. This angle is important because if it is off, it can ‘pull’ the earphone out of the ear.

 

There is a little trick for adapting this angle and the way the MA750 sits in the ear – resetting the heat treated hook. We don’t advise doing this obviously and certainly would not give this advice to most customers, but this is Head-Fi so some of you are a little more open to tinkering.

 

Using a hairdryer with the kink of the cable in your hand, hold the kink in the shape you’d like it to be in and GENTLY apply heat. If it’s too hot for your hand, it’s too hot for the cable! Do not use blow torches, ovens, lighter fluid or anything else. Hairdryer, gentle heat and not hotter than the skin can stand, otherwise the cable will start to melt.

 

Before you think about trying this, make sure you’ve tried all the tips supplied. The MA750, especially with the selection of tips, should fit the vast majority of ears, but as every ear is different, there will never be a one-size-fits all. 

 

Thanks,

RHA Team

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post #199 of 410
Thread Starter 

Holy carp that's awesome!  :D  LOL!  And to think, I was beginning to get hassle from people when I said RHA cares about what we have to say.  Someone's eatin' crow tonight.

post #200 of 410
Quote:
Originally Posted by HiFiGuy528 View Post
 

Monster Gratitude isn't very good.  XBA-3 is uncomfortable to wear due to it's large enclosure.  Too bad you can't get a good seal with the RHA.

Beg to differ-maybe it has to do with the fit issue, but, to my ears, XBA-3 and Gratitudes both do many things better tan the 750. They also both fit and stay and isolate better. YMMV, of course, but that's not the way I hear it. I've done some detailed comparisons, even holding the 750s in place by hand so the seal is good...other iem's mentioned have better detail, instrumental texture, slam (750 has wider soundstage, darker space between instruments, bass equal but 750 does have drive and wow factor. In fact, I do like them, just like the others better, and have much easier time using the others).

Complys didn't help...the largest silicone tip sorta works, but I have to hold my breath and not move, or the seal is gone. That's my ears, of course, don't begrudge anyone else's enjoyment of them, more power to you. (there is always the possibility that I got a bum pair, but no obvious defect I can spot)


Edited by doctorjazz - 10/17/13 at 6:12pm
post #201 of 410
Quote:
Originally Posted by RHA Team View Post
 

There is a little trick for adapting this angle and the way the MA750 sits in the ear – resetting the heat treated hook. We don’t advise doing this obviously and certainly would not give this advice to most customers, but this is Head-Fi so some of you are a little more open to tinkering.

 

Using a hairdryer with the kink of the cable in your hand, hold the kink in the shape you’d like it to be in and GENTLY apply heat. If it’s too hot for your hand, it’s too hot for the cable! Do not use blow torches, ovens, lighter fluid or anything else. Hairdryer, gentle heat and not hotter than the skin can stand, otherwise the cable will start to melt.

 

Before you think about trying this, make sure you’ve tried all the tips supplied. The MA750, especially with the selection of tips, should fit the vast majority of ears, but as every ear is different, there will never be a one-size-fits all. 

 

Thanks,

RHA Team

 

Good stuff RHA Team! Sounds like a great solution.

post #202 of 410
I have never heard before that the wire of an ear guide broke...
post #203 of 410
Quote:
Originally Posted by Gee Simpson View Post

Waiting for more Sony XBA-H1 impressions and then I'll be able to decide on my next purchase as it is between these and the Sony's.

 

Same predicament, anyone got any advice? Both have really positive reviews, though unfortunately I can't buy both!

post #204 of 410

I got the MA750i's about a week ago. It's still fairly early but I have to say I'm extremely impressed with the both the sound the build quality. I'm using Comply T500 tips and have no problem with fit, in fact they're one of the better fitting and comfortable IEM's I've used.

post #205 of 410

Hi All,

 

Pleased to see our advice was helpful!

 

We just wanted to quickly post, as we're running a review programme http://www.head-fi.org/t/687315/rhas-running-a-ma750-and-ma600-review-programme for our new products.

 

We're asking you to nominate another Head-fi'er who you think will like the sound signature of the MA750 and of the MA600 to receive a sample set to review. If your nominee is selected, you'll also be sent a review sample. We'll select 4 pairs of Head-fi'ers, so send out 8 products total; 4 MA750's and 4 MA600s.

 

Thanks,

RHA Team


Edited by RHA Team - 10/24/13 at 9:41am
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post #206 of 410

Definitely get joker to sample a pair, also sfwalcer (he does some great reviews and has tried alot of iem's). Best thing I would advise you guys to do is contact Dsnuts and he will give you a few names of the regulars on here.

post #207 of 410
Quote:
Originally Posted by koreanzombie View Post
 

Definitely get joker to sample a pair, also sfwalcer (he does some great reviews and has tried alot of iem's). Best thing I would advise you guys to do is contact Dsnuts and he will give you a few names of the regulars on here.


Thanks Zombie for the kind words, working at it as i type. :ph34r: 


Edited by sfwalcer - 10/24/13 at 12:52pm
post #208 of 410
Thread Starter 

LOL, I was gonna post about that review program, but it looks like RHA beat me too it!  :D 

post #209 of 410
Quote:
Originally Posted by warrenpchi View Post
 

LOL, I was gonna post about that review program, but it looks like RHA beat me too it!  :D 


This RHA hype train was suppose to blast off to Mars warren, you're slacking!!! :tongue:

 

BTW you made it in the Big Leagues, your hype for the LCD Xs that is............................................. enter if you dare. :ph34r: The Big Birdie had already gotten a taste and is a done chicken. :veryevil:

 

http://www.head-fi.org/t/683007/the-hype-appreciation-thread/240#post_9901459

post #210 of 410
Thread Starter 

Hehe, not gonna get any hype from me.  :smile:  Besides, a bunch of people have heard it by now, and so we've got a lot of good impressions to go on.

 

Yeah... that Audeze thing... I can't wait for a lot more people to hear it.  When that day comes, I'm not going to say I told them so (well, I might a little bit).  ;)

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