Now let me start by saying that at the time I purchased these Delta's, I was looking for a step up to my Philips SHE3580's to get a better quality budget iem. I have just sold my JVC FX40's and my Sennheiser CX215. This before I bought the Vsonic VSD1S, GR99, or the LG Quadbeats. i was researching through head-fi for a budget bump in quality. The Delta's were getting a bit of positive press, so for $20.00, I took the dive. I was excited to receive my newest go to IEM. When i go them in the mail, I hurried home and did the mandatory 2 hour burn in with sweeps and noise at moderate levels before listening to them. Then I popped them in using my Sansa Fuze and E11 amp, and well...ummm....what's up with this "balanced bass"?? it was muddy and forward. The highs were nicely presented, but the mids were grainy and instrument separation was less than the SHE3580's. Ok so maybe they need some decent burn in time? I put a loop on my computer with the E11 amp, playing SKREAM! A few hours later i took them off the burn loop, and put them in again. This time I switched between the Sansa, my Sony 475, and iPod Touch. Though clarity improved and the highs were fairly refined and extended, the bass was still very unruly and unrefined. The grain in the mids was still present, taking away from the smoothness of the presentation, and the reported balance just wasn't there. These turned out to be bass forward/mid forward IEM's, where the bass simply wasn't refined enough to pull off a high end budget presentation like the SHE3580's or the LG Quadbeats. Even the JVC FX40's had better instrument separation and clearer mids than the Deltas. The biggest problem i was was that I had to turn the bass EQ down to get decent clarity, and flat, the grain in the mids really shown as these struggled to present instrument separation with average soundstage and definitely budget imaging. Even the GR99's excelled over the Brainwavz Delta's in these categories. Then there's the question of the mild but still noticeable driver flex from the shape of the aluminum housings. They are very small, and lightweight, and as such, with the design of the driver housing, driver flex tends to happen from the seal being moved within the ear canal from the housing construct. These are most definitely a $20.00 IEM, and no, IMHO they do not perform outside and above their price range. They perform right at the price they fetch. There are many budget IEM's that perform better and brighter at the price range, and exceed their domain. Several are mentioned above. 
 
Now build quality is definitely a plus. These things are pretty, built like a tank, and the high quality cord is free of most microphonics and tangling. They also have a nice angled jack, and lovely strain relief. Gorgeous design...and BUDGET sound. 

I got these on a pawn shop deal, and wanted some cheap headphones that could deliver for what I was looking for. An all-arounder that provided clarity, good bass, nice treble, and handled all genres of music. Since these normally retail from anywhere between $100-180, I gave them a try, and I like them. The laid back, v-shaped signature is what I was looking for. The mids are slightly recessed, but still manage to push through when needed. It's noticeable but tolerable. Sennheiser HD800, T1's, or hell, even my old JVC DX3's were better technically and soundstage wise, but there are fun and fun is what I wanted, so the Roland RH-200 does the job. They are comfy, but the fit can be cumbersome because they are a bit heavy, so for long periods of listening it might get a bit much if you're not laying down, but the fabric cups are so soft and comfy and lie nicely over the ears. The RH-200 employ 40mm drivers, neodymium magnets and CCAW voice coils,  so they are powerful enough to deliver some really nice crystal clear details, so for the price, these are more than serviceable. They are excellent all-arounders that compete well with JVC, Audio Technica, and Sony at the price range. 

I've spent the past week auditioning these new VSD1S by VSonic. Before this I was listening extensively to my dual dynamics JVC FXT90's and my dual armature UE 700. For a single dynamic driver that is priced below $50.00, you get something tuned to compete with above $100.00 IEM's. Within a few hours, I realized that my VSD1S sounded as accurate and sonically equal to my dual FXT90! Though the FXT90's revealed more details in your music, and had greater instrument separation and timbre ability, the sheer SMOOTHNESS of the mids and the bass simply stood equal to the FXT90's, due to the aggressive mid nature of the 90's, and the lack of smoothness in the sound of those dual carbon drivers. The bass is more articulate and rounded in the Vsonics as well. Though they don't dig as deep or punch as hard, the ability of the bass to produce clear and thoughful notes and provide blinding speed on the low end is simply too impressive to ignore. The mids are exceptionally smooth and clear, with just the slightest bit of coloration to give it that snappy fun sound without losing too much transparency. These things are almost as transparent as the RE-ZERO's. Not quite, but they definitely are a close second, while trouncing the FXT90's. Transparency and soundstage is also greater than the UE 700. No small feat since the 700's are a dual TWFK armature driver IEM. the high end is where you will be left for want if coming from the armature crowd or the JVC crowd. The sparkly, strong treble presence of those types of IEM's is not present here. These are laid back highs. I'd say more subdued and eloquent highs. The cymbals and crashes and clicks and brushes come out clear and have presence, but not the extension or strength you might find in a BA driver. This is well balanced, and beautiful. Nothing offensive at all with the sound signature. You could say the sound signature is ELEGANT. This is the beautiful woman walking across the room, that everyone takes notice of, who is powerful yet understated, despite more overt and stunning women in the room. These are my budget champions. I don't believe a better sounding budget IEM exists. IMHO. Why? because these can handle ANY genre of music to sonic perfection, and do it at a price reserved for $100-200 IEM's with multiple drivers. I've got the Fidelio S2 on order, as well as the T-PEOS H-100, and after hearing the VSD1S, i'm not so excited about either anymore, and I think there won;t be much improvement over these budget Kings. 
 
THERE IS A NEW BUDGET CHAMPION. LONG LIVE THE KING. 

i was excited over my first custom IEM's ever, I was also excited because i've been a sucker for the Ultimate Ears sound for a long time. Now I know that Logitech is now in charge of UE, but I still felt like these would be very musical CIEM's, as the Ultimate Ears commercial line is so well known for their musicality factor. After a month of waiting due to having to get impressions, and then some delays with my molds, i was able to get my UE 7's in a beautiful package very similar to the one I received with my UE TF 10's, but with a bit more professional flair. Now after placing them in my ear, and getting used to the custom fit (very uncomfortable for awhile due to the ear canal not beingused to having something placed so deep inside), i noticed how these did not sound so great with my ipod touch amped or unamped. Didn't sound all that great with my Sansa fuze amped or unamped, and finally sounded only slightly better with my Sony NWZ amped and EQ'd. Now here's the thing...The soundstage in these things are so damned airy and wide, and the imaging seems so odd, that i just can seem to get used to the sound signature. Now if I was using these on stage, as i have been a singer in many bands, then I'd be incredibly satisfied with the balanced and VERY CLEAR sound from these CIEMs. The downside is since I'm using these for private music listening, they just aren't "musical" or "fun" enough for me. The bass is there and has some depth and weight (very very close to the bass in my TF 10), and the treble is sparkly and very present and active. The way they differ than the TF10 is the mids aremore in line with the rest of the frequencies. MORE BALANCED. The TF 10's have that recessed mids that make guitars and vocals feel like they are coming from the back. These are slightly more forward, but the vocals are more stage sounding aka a bit more hollow and less "full" than in universal IEMs. I think the UE 900 would probably be a more ideal IEM for music listening through an ipod or mp3 player, and these would be absolutely AMAZING for musicians wanting a full bodied, clear and properly soundstaged live experience. For that i recommend these 1000%. For everyday music listening, i'll say pass. I am. I'm selling these for reshelling. UE 900 here I come. 

these ridiculously shaped but equally ridiculously slick sound signature earphones or monitors or whatever you'd like to call them kick some major a**. They are detailed as all heck, and are revealing of the slightest breath, brings a delightful transparency to your music, delivers banging bass and sparkly and detailed highs. The mids are slightly recessed, but some fidgeting with your eq can easily bring them in line with the rest of the FR, giving these the wide soundstage and fun sound that have kept these IEM's at the top of the want and purchase list of most every head-fier or musician, despite being one of the most uncomfortable and foreboding Frankenstein bolts out there this side of the Nautilus shelled Monoprice 8320. Jerry Harvey's swansong IEM. a five star sound and a two star fit, these are the gorgeous girl you take to the ball, who turns out to be great in bed, but an equal pain in your...head. 

I got a great deal on these iem's, which MSRP is $150.00-170.00, for $70.00 on ebay. I own the UE 500's, the TF 10's and until recently the Sennheiser IE 80. After purchasing the HiFiMan RE-ZERO and test driving the 700's, I decided to sell my IE 80's and my RE-ZEROS. The solid professional sound and true comfort I get from the dual BA 700's, I felt there was no need for either dynamic driver IEM, as the ONLY thing the IE 80's have on the 700's is the expansive sound stage and deeper bass. In regards to the beautiful and extended highs, the 700's hung right there with the 80's and kicked the RE-ZEROS around. Warm and clear detailed mids? check. substantial bass for a BA driver? Well...to be honest, the only way you're gonna optimize bass response, and get strong thump with these is to bass boost with an amp. I use my E11, on bass boost, and use Comply olive tips. This also refines the top end sparkle that some find annoying with the 700's, while the bass extends deep and is surprisingly detailed. Though not nearly as powerful as my TF 10's, the trade off for comfort v.s bass depth is one I gladly accept. I love that the 700 delivers details in the music, while having that sweet sound signature so well known from Ultimate Ears. The detail retrieval is very close to that of the RE-ZERO's, but able to deliver the bass response the ZERO's simply cannot achieve. The housing is miniscule. I mean it's the smallest housing I've seen in a IEM. Lightweight as heck, and very classy looking. Maybe a bit fragile, but i handle these as if they were purchased for $300, and not $70. I'm not worried about build quality. They just FEEL fragile. The slider takes care of most microphonics, and isolation is very good. Now the wires are thin and brittle, and after two years, I've had to electrical tape the wiring at the Y, and at the jack to keep these things alive. Still all in all these are some of the most underrated, underappreciated, but great sounding IEM's in the dual BA world. Anyone who says different has either not tried these on for size, or simply is being snobbish. The UE 700 is money well spent.