Separate names with a comma.
I would do almost anything to get pm4's in purple
Sonion 33AJ007i/9 and 26-E25WT There you go
So these are the drivers details if anyone is interested, very nice. The drivers appear to be the best Sonion offers. Excellent choices Bob and thank you again for the specs. I like to know what goes in my ears!
Are going to come out with any longer cables.
I love the design and they are splendidly comfortable to wear, but they run a bit short and it doesn't allow me to wear it out of pocket with my DAP on a walk nor does it allow me to easily maneuver it around my laptop and in house listening sessions.
Right now i have sounmagic e50's with a 1.2 m long cable that seems to be a great length and about a good 6 inches difference from the vyrus cable (~1.1m). Don't know what you or anyone else thinks.
Tho i do imagine if you are braiding the cable you are going through a lot of cable length to start with that is compressed to a final, shorter length.
Would love to have a longer cable for the m6
Interesting you say that, because I also thought the Vyrus cable felt short but never thought about it or compared...
But following a super scientific method of laying them out on my bed, the non-memory wire Vyrus cable is indeed as short as I've ever received from Trinity, on par with the original Delta. The Atlas and Delta V2 are a little longer - interesting thing there is the difference is between the y-split and the IEMs, not the main part. Also, the memory wire Vyrus cable is a bit longer than the other.
The Sabre cables, however, are very much longer and would probably suit you better. I too hope they are the 'normal' length and the Vyrus is just a bit of a throwback.
IIRC Bob did mention 1.4m cable when someone asked abt it, but not sure applies to all iem or specific. That was quite a while ago though. @Bobtrinity
I wanted to add more about Sonion. Here is some background about their history; a great read.
Sonion’s AcuPass Technology: Making Things Easier for Everyone
All information presented in this article is derived from publicly available documentation. CYMBACAVUM has not been privy to any confidential industry documents.
In the world of premium earphones, while many manufacturers around the world are able to design and manufacture dynamic, moving coil transducers, the supply of balanced armature technology to earphone manufacturers around the world is essentially a two-horse race between the US-based Knowles Electronics and Netherlands’ Sonion SA. Out of these two companies, Knowles has always held the market lead. With a long history in microelectronics manufacture, they’ve managed, in recent years, to capture a good portion of the premium audio market with their miniature dual driver design, the TWFK. This tiny little driver, measuring in at only 5.00 mm × 2.73 mm × 3.86 mm, enabled some absolutely tiny in-ear designs, such as the JAYS q-Jays, the Ultimate Ears UE700, and many more. The TWFK’s success translated not only well to the mainstream (almost all balanced armature designs originate from applications intended for hearing aids), but the driver’s wide bandwidth and small size also allowed the TWFK to be a preferred driver of many manufacturers of custom in-ear monitors as well.
However, the TWFK, as great as it is in terms of tiny size and wide bandwidth, has had to concede a number of technical tradeoffs. A good number of IEM users lamented that TWFK-equipped IEMs sounded a bit thin and metallic, with unconvincing bass depth, and could even be at times sibilant. Having heard a good number of TWFK-equipped IEMs and their variants, I can agree that these complaints are not unfounded. Much of this subjective assessment has to do with the small-sized enclosure and the lack of adequate back volume required to provide the bass response necessary for listeners’ satisfaction. A number of companies, such as Westone, EarSonics, and Ultimate Ears, have had to design their flagship products around an assembly of larger-sized BA drivers on top of the TWFK, significantly increasing size and design complexity because of the need to design around a multi-bore output. For universal-fit IEMs, a manifold design would also be necessary. In addition, because of the difficulty in creating low-noise/distortion low-pass filters in crossovers for multiple BA-based IEMs, it’s not a surprise that acoustic engineers from all over have been searching for an acoustic-based alternative. In order to make things simpler for earphone manufacturers and designers, Knowles designed several integrated, dual-driver high/low solutions in not only the TWFK, but also the GP/GD/GQ drivers, and has even custom-designed solutions, such as that used in the Apple Dual Driver In-Ear Headphones. With easy tweaking options, integrated drop-in solutions are what seem to be trending for the rapidly expanding premium earphone market.
Sonion, on the other hand, has not had as much widespread success. They’d been playing second whistle to Knowles, and never managed to release any drop-in solutions until recently, when they introduced a new dual-driver assembly. In addition, the new driver set utilizes proprietary technology they term ‘AcuPass‘ that promises to make earphone design and implementation easier than ever. Without going into details, AcuPass is essentially acoustic low-pass technology that simplifies crossover circuits and enables multi-driver receivers to be combined into one single output port, making parts easier to design for. Sonion has a great layman’s explanation in video form:
The whole process works somewhat like the much-ballyhooed Shure SE846’s “true subwoofer”, where the woofer output is sent through a small, diameter-restricted and convoluted output path in order to filter away high frequencies without the need of passive LC/RC circuitry through SMD components. The SE846’s acoustic low-pass filter is a bit more complicated than is AcuPass, but the overarching principles governing both designs are exactly the same. While both the SE846’s acoustic design and AcuPass have come out only within the past year, these concepts are not exactly “new”. Klipsch, in their partnership with Sonion, explored the acoustic low-pass concept in the now-discontinued Custom 1/2/3 series of IEMs. Ultimate Ears has also explored these concepts with the UE4Pro custom-fit IEM, which uses a special woofer with a diameter-restricted output. In that sense, the UE4Pro could probably be regarded as the direct predecessor to AcuPass.
Only now, however, has Sonion been able to introduce a ready-made module that fully realizes AcuPass without the need for special, custom-order runs like those established by Klipsch and Ultimate Ears, and this realization is Sonion‘s 1723 assembly:
In this 1723WT03 driver assembly from Sonion, the output from the 17A012 woofer is fired against a small chamber created by the AcuPass center plate and exits through a small custom-fabricated damper to restrict higher frequency output, effectively becoming an acoustic low-pass filter centered around 80-100 Hz. The tweeter of the the 1723, coded as the 2331, is part of the 2300 series of drivers, which is a “standard” driver series designed to possess a frequency response as accurate to human eardrum response as possible. They’re analogous to and very similar in performance to Knowles‘ ED driver series, which has been made famous by the Etymotic ER4. As a single wideband driver, however, the 2300 is often found not to possess the kind of low-end headroom required for convincing reproduction of low frequencies.
In the past, Sonion has attempted to make up for its shortcomings by venting the driver, coming out with iterations such as the 2354 and 2356. However, venting often increases total harmonic distortion levels of the transducer to audible levels; balanced armature drivers also commonly possess higher levels of odd-order distortion, which is said to be sharper and less palatable to the ear than even-order distortion, leading to claims of “tinny” response in IEMs. The logical way to keep distortion low but to add low-frequency performance is to use a specialized woofer. The 17A012 woofer in the 1723 AcuPass is part of the 1700 series of drivers specifically designed for audio use, of which Knowles does not have a direct analogue. In the middle is a specially machined plate that is the key component of AcuPass. It manages to restrict the output diameter of the woofer response, cutting frequencies very low — much lower than if it were an crossover designed with resistors and dampers. The single spout output is icing on the cake, making it easy to design a small-sized universal-fit IEMs around the 1723. However, in concept alone, AcuPass doesn’t need to be solely a single spout design.Since the receiver terminals of BA drivers are usually very small, accompanying the AcuPass technology is the addition of an integrated PCB board that makes for easy soldering (without the need for microscopes).
Moreover, the best part about this AcuPass technology is that it’s not restricted to just this 1723 design; it can be applied to essentially any receiver in the Sonion portfolio. Already, there are rumors of Sonion developing a “3323” driver assembly, based around the 3300 series drivers and the 2300 series, arguably improving on the sound quality of the 1723 because of lowered distortion, and improved transient articulation of the 3300 series over the 1700 series. It’s certainly very exciting, and AcuPass may very well give Sonion the cachet to catch up to Knowles in market share for the premium earphone segment.
So which products are already equipped with AcuPass technology? Let’s start with universal-fit IEMs. The earliest product to sport AcuPass in its present form is undoubtedly the Imation TDK TH-ECBA200BBK (or BA200 for short, reviewed here). At a street price of ~$150 USD, the BA200 is a massive win for the discerning audiophile, as it sports great electroacoustic properties (courtesy of the 1723 AcuPass driver inside), on top of the great street price. Unfortunately, TDK has quietly discontinued the model, dumping extra stock into discount stores such as Ross, which has in turn sold them for bargain bin prices. The second universal-fit IEM to utilize AcuPass is likely the FitEar Parterre. While the drivers used within the Parterre were purposely not mentioned by Suyama FitEar, third-party individuals have analyzed the Parterre’s outward electroacoustic properties and found it to correlate heavily with the 1723WT03/9. Mr. Keita Suyama has also mentioned in passing to the Japanese audio press that the Parterre does not utilize a traditional electronic low-pass filter, further suggesting the use of technology at least similar to AcuPass. Then, shine a bright light in on the Parterre, and two drivers similar in size to the 2300 and 1700 will be revealed, along with a PCB attached to the back.Even though only two universal models using AcuPass currently reside on the market (the new Audio-Technica ATH-IM04 might be using it in conjunction with other drivers), several custom IEM models are verified to be using the 1723 AcuPass:
CosmicEars BA2, BA4R/F
CustomArt Music Two (CYMBACAVUM Review)
Livezoner41 LZ2 ‘Street Life Gold’
InEarZ IE-P250 Pro
Considering the 1723 was only officially released to the public in late-January 2013, to have this many official, in-production CIEM models already using the AcuPass driver in their designs speaks to the 1723’s ease of use, wide-ranging applicability, and performance. Is AcuPass the technology that will vault Sonion ahead of Knowles in terms of market share, however? Not necessarily. While the current 1723 assembly is excellent in terms of sound quality, it is not actually all that small. While it’s small enough to fit inside a Westone or Shure-like universal form factor, it will be unable to shoehorn itself inside an enclosure like that of the JAYS q-Jays. Thus, when it comes to absolute size, the TWFK still has its advantages. We’ve got to keep in mind that Knowles Electronics has a few tricks up its sleeves as well, and has been hard at work making high-quality, small-sized drivers that can double as woofers. Knowles will undoubtedly be releasing new drivers that will attempt to keep Sonion‘s growing market influence at bay.
Sonion has great potential with their AcuPass technology, however, and we here at CYMBACAVUM will look forward to many new products that take full advantage of this convenient new technology.
But it will certainly make the balanced armature game a bit more interesting. Knowles is huge and does a pretty good job, but I always like to see a company like that to have competition. It's like Intel and AMD. I like Intel CPUs and I chose one when I build my own rig, but I'm very happy to see AMD come back into the game with their new CPU architecture. Case in point: I like and use Intel, but I want to see them have competition. Just like how I want to see Knowles have competition in some way.
Right. It all has it's positives and negatives depending who you are and what entry point you are coming in as the company themselves, the competitor or the consumer, etc.
I have ordered the PM4 and am interested to know about the sound improvement of using the silver cable?
What do you think is a better use of resources in terms of sound PM4 plus silver cable or use the money from that toward the PM6?
are these in pm4 too?
Sonion BA are not in the PM4. The BA are similar as to what is in Delta VII. Bob posted in the past
so, they are for pm6 or hunter
does somebody know if the discount on the pm6 ends like the one on the pm4 on august, 31st?