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Sleek Audio CT6 (Custom) Review (disappointed!!)

post #1 of 25
Thread Starter 
With great anticipation I really wanted to love these custom made Sleek Audio CT6 with wireless bundle for nearly $500. Unfortunately, they are very disappointing due to my high expectations.

I used them on a mission trip to Papua New Guinea which included six air flights, so I had extensive use of them in-cabin and while waiting. I compared them to my Altec Lansing im716s which are superior in almost every dimension.

The single armature aspect is what I believe makes SA's offering comparatively weak. The highs and mids simply do not sparkle, are not detailed like the im716s that I purchased (a backup pair) for only $69. The bass is below average especially at low volumes. In fact, at lower volumes these IEMs are weak and not detailed at all; and I believe this belies the weakness of a single armature design. Only at moderately high volumes do these IEMs seem above average. And then at those volumes, there is the noise fatigue issue. In contrast, the im716s sparkle relatively even at lower volumes and ROCK OUT at higher volumes. The im716s seem to be faster paced as well.

I listen mostly to vocals and am disappointed in the midranges of the SA CT6s which also lack crispness and detail.

The overall sound of the SA CT6 IEMs are veiled not unlike the Westone UM1s that I own. And not surprisingly these are also single armature.

The soundstage is pretty good and extended for IEMs, however, and only in this area does the SA CT6 best the im716s, and only by a little.

The comfort of SA CT6s was also disappointing as there is stuffiness after use of more than thirty minutes to an hour with the hard plastic material as opposed to the soft rubber tri flanges or modified bi flanges of the im716.

The sound isolation is decent but well short of the very isolating tri flanges of the im716s.

I bought these mostly based on reviews of these fairly low priced customs found on Slashgear and Techpowerup and HERE. I question the impartiality and fairness and accuracy of these reviews, because my experience is much lower than the glowing reviews at these three areas including this site. Some of these reviews have described them better than Westone 3s and UE 10s and SE530s which are some of the better IEMs. I am calling those reviews out as being NOT UNBIASED based on my disappointing experience. If you are on here and are truly unbiased, then I have to recommend that you do yourself a favor and buy some left over Altec Lansing im716s or Etymotic ER-4Ps which are similar; and if you are unbiased, you will like these more because of their superiority.

Had I to do it over again, I simply would have saved the over $500 invested including $50 custom fitting at an audiologist and $40 express shipping for the international trip. I regret the money I spent on the Sleek Audio CT6s and caution others with their hard-earned bucks. It's not that the CT6s are bad, they just have average sound and I expected so much more. Again in comparison, I find myself much preferring the less than $100 Altec Lansing im716s for the highs, midrange, bass, isolation, comfort, low volume performance, mid volume performance, and more moderate volumes as well. Be wise and be cautious.
post #2 of 25
I'm curious if you tried them wired at all. I ask because though I don't own the CT6, I do own a pair of SA6 which I love. I'm also curious about the configuration you ordered. With my SA6 I use bass+ and treble+ and feel the SA6 offer all that you say is lacking.

You might also consider calling Sleek Audio. They have top notch customer service and if you talk to them about your disappointment, they may work with you.
post #3 of 25
Wow, sorry to hear they were such a disappointment for you. Another member had raved about them I really considered getting them instead of my IE8s since it was not all that much more money. Having also owned the IM716s, I guess I would also have been just as disappointed. Maybe you can have Sleek re-tune them to a sound signature that would be similar to your IM716s?
post #4 of 25
One question. Does your custom sealed properly? Any seal leak?
post #5 of 25
Had I to do it over again, I simply would have saved the over $500 invested including $50 custom fitting at an audiologist and $40 express shipping for the international trip. I regret the money I spent on the Sleek Audio CT6s and caution others with their hard-earned bucks. It's not that the CT6s are bad, they just have average sound and I expected so much more. Again in comparison, I find myself much preferring the less than $100 Altec Lansing im716s for the highs, midrange, bass, isolation, comfort, low volume performance, mid volume performance, and more moderate volumes as well. Be wise and be cautious.[/QUOTE]

I am surprised to read your report on the CT6s. I don't think a established reputation company can launch a so lo fi product as a hi end model to the market.

Or something wrong with pairing with ? Or you just don't like the taste of CT6s? if you really don't like it , My recommending is just return it as soon as possible.
post #6 of 25
I would like to know about the OP's configuration as well. To me, SA6 (and very possibly CT6 which based on the same drive) certainly sounds better than iM716 - that is unless you are a big fan of Ety's sound of course.
post #7 of 25
Thread Starter 
Original Poster back; Thanks for the replies.

I have configured +Bass, and neutral Treble (because I had read about possible sibilance with +treble). In retrospect with the lack of sparkle, I wish I had ordered +treble.

I have used corded more than wireless, although the sound is basically the same.

I had a slight leak on the left ear noticeable on the airplane. I could push it in on the left and stop the leak but it took quite a bit of adjustment. I called Sleek Audio and they approved using the clear finger nail polish to solve any leaks which it has for the most part. The SA IEMs simply sound veiled without sparkle, if that is understandable.

In regards to customer service, Sleek Audio knows of my concerns. I contacted Andrew at Sleek Audio and he approved of the clear nail polish. He referred me to Bill at Sleek Audio and I replied to an email he sent. But he did not reply to my email which expressed my disappointment at the Sleek Audio IEMs.

To be honest, I believe the big problem with these IEMs is the single armature is simply inferior. In some of the reviews, they indicated that multiple armature IEMs was all about marketing. In actuality, this claim seems to be false marketing, because IMHO the single armature is not able to put out the fidelity, clarity, and detailed sound that multiple armatures can. I was fooled by the marketing hype. I am only sharing so that others do not make the same mistake with their hard earned dollars. I am getting ready to go on a two week beach vacation and the Sleek Audios will remain at home and the Altec Lansing im 716s will be with me.
post #8 of 25
Well, I am sorry you are not enjoying yours. My CT6 are better in every regard to my single, dual and triple driver earphones. Single drivers especially from Sleek are very good. While they may not be as thickly layered in the bass, they smash through all of my universals for clarity in every frequency. I had fit issues though and sent them back twice.

That is frustrating.
post #9 of 25
Just putting it out there, but the iM716s are also single-armature. I'm assuming you know that and that the iM716 is likely an average to compare the CT6 to.
post #10 of 25
First of, I think you disappointment with the SQ is mainly the wrong selection of treble port. Second, though I won't said SA6 (or CT6 to a large extent) is capable of competing with the top-end three drivers IEM, it is IMO more than enough to go head-to-head with most dual drivers.
post #11 of 25
Thread Starter 
3XO, I didn't know the im716 was single armature. Thanks for the info. They do sparkle and I wish my Sleek Audio CT6s did. Perhaps I will again try (3rd try!) to get Sleek Audio to respond to my concerns.
post #12 of 25
if you don't like them, that may not be a fault of the sleek. you may just want a different signature. i have come from er4s, se500, um2, ck10, sm2 and a host of other single and dual driver models, some of which cost more than the sleek (mine were 300$ as they were early production of the ct6) and nothing comes close to providing the same tactile experience in mids, highs or lows.

however, if you don't like them even after multiple refits and remakes, it could just be that you are not a sleek person. it has nothing at all to do with single or multiple drivers. i have some three other customs, each with at least 2 drivers and while i've not made final decisions on sound, i certainly wouldn't say that the sleek fall behind because of a single driver.
post #13 of 25
neutral treble: thats... bad. if you want treble sparkle, you should have gotten at least treble+ or even treble++. ps i don't have the customs but i had SA6 a while ago.
post #14 of 25
Quote:
Originally Posted by drksuh View Post
To be honest, I believe the big problem with these IEMs is the single armature is simply inferior. In some of the reviews, they indicated that multiple armature IEMs was all about marketing. In actuality, this claim seems to be false marketing, because IMHO the single armature is not able to put out the fidelity, clarity, and detailed sound that multiple armatures can.
You're right. If they told you that multiple driver IEMs are just marketing, they lied. Of course, there IS a lot of hype and a single-armature design can still put out some pretty great sound. But if you take the Knowles Acoustics TWFK and listen to the sparkle coming out of that driver, you're just not going to get the same experience from a wide-range driver. There's a sizzle at the high end that needs a good tweeter. The TWFK is a dual woofer/tweeter combo, but the tweeter end stands on its own.

Quote:
Originally Posted by shigzeo View Post
if you don't like them, that may not be a fault of the sleek. you may just want a different signature. i have come from er4s, se500, um2, ck10, sm2 and a host of other single and dual driver models, some of which cost more than the sleek (mine were 300$ as they were early production of the ct6) and nothing comes close to providing the same tactile experience in mids, highs or lows.
There's truth in this. Often, people blame the earphone when it's really an issue of tips, EQ, configuration, et cetera. Often, what you do with the earphone can have as much impact as the choice of a different earphone.
post #15 of 25
Sometimes I do question the biasedness of the reviews posted here and on tpu.

Seems like most expensive headphones/iems (>$250) posted on tpu receivedat least an 8 out of 10 from the reviewer. Makes me wonder sometimes, where did all the lousy headphones/iems go?
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