A very brief report from me, because I really only had brief time this morning to attend the show...
First and foremost, the usual thanks to Fujiya Avic / Sasaki-san to let us in early, it was fun to attend the unveiling of the
Astrell & Kern AK380 in a ... chapel!
I will let Anakchan and Currawong comment on the specs / sound in detail. What stood out from the talk is the new AKM chip used with new (oversampling or brickwall, not sure) filters that should result in a smooth albeit more lively sound with various time / phase optimisation. One of the gurus from Asahi Kasei Microdevices who was part of the dev. team for the new chip I suppose showed an interesting figure with out of band noise from their chip vs. that of a "competitor" chip. Basically, while the AKM chip was dead quiet to 200kHz and only slight ramp-up to 400kHz I recall, the other chip was clearly spitting out a lot of noise in that ultrasonic range (which apparently can fold back into the audible range depending on downstream gear).
More info here: http://www.akm.com/akm/en/product/featured/velvetsound/
There were also rather complicated / confusing block diagrams with arrows flying around about possible streaming modes and connections to an ecosystem of devices to be released with the AK380. From what we understood with Anakchan, there's this connect app for iOS and Android that lets you use it as a (wifi) remote for the AK380 or stream music from the device to the AK380 by DNLA protocol.
No information on MSRP / release date but apparently, 3500USD is the figure that was announcing in Munich.
I could not listen to the device but at least got a couple of teaser pics:
Balanced 4 pins and USB port to connect to an optional analog amplifier (shown later below):
Side by side with AK240, the buttons are relocated to below the screen to maximize real-estate (very bright screen, gorilla glass I recall hearing):
This is the dock / ripping station (apparently, you can rip a CD that gets stored to the DAP):
This is with the optional amp. When I asked about the benefits, the rep could not tell as this is a mockup and they've received no detailed information yet. Think of it as an analog balanced amp with extra gain I suppose (and USB passthrough):
Next stop was to give a listen to the new
Pioneer SE-Master 1.
First some teasers of the driver, this is the back of the driver with various porous films and felts
(it's an open back phone but there are very little effect of putting my hands on the cup, which lets me believe these screen are quite resistive and the felt inside the diaphragm venting tube is quite absorptive):
This is a view of the magnet and cone (aluminum base + ceramic coating):
Now onto the sound: I have to be honest, it was a bit of a letdown for me. I used my iphone / lightning connector to the Pioneer DAC/amp combo which was driving the phone balanced. I used Qobuz / flac tunes I am familiar with.
The bass was rather boomy at first unless I strongly pressed on the pads to ensure a seal (again this supports the idea that the driver baffle, while open, has quite resistive acoustic screens). What I did next is replace the metal arc controlling the clamping force with a stiffer one (2 versions are provided with the phone), which surely felt much tigther:
I also got rid of my glasses (somewhat thick frame) and the bass did improve (although it still sounded a bit mid-bass centric / lacking extension on this short listen).
It did not sound bright and shouty but I did not get too excited about the overall resolution. The other very unsettling thing was how sensitive the tonal balance was to positioning. As if there is a very clear sweet spot and you don't want to be offcenter.
It was very brief listen so don't put much faith into these thoughts but my take from today is that it's a bit of a steep price for the performance achieved, I'd place it more in the 500-1kUSD bracket.
Next stop was
Hifiman, with the
HE-1000:
It looks like Hifiman is establishing operations in Japan, the lady who was manning the table was a familiar face as she was taking care of the headphone floor at Dynamic Audio in Akihabara for many years. She just started with Hifiman this April and had the HE-1000 hooked up balanced to the HE-6, driven by their portable player / dock.
Again here, impressions to be taken with a grain of salt considering the chain (and limited songs I could sample but it was not the dreadful playlist of past year at least so I could use a few familiar tunes like latest daft punk, rebecca pigeon, hotel california live etc ...). The first most shocking thing was the bass kick. That's a given for orthos but I guess I always get surprised
. I love my stat gear but I think it's fair to say it just cannot give quite that level of rattling bass. It was almost a tight too bassy for my tastes actually. The midrange speed & smoothness was typical of good orthos, really nice. I was not as convinced by the mid-highs / highs but again, that could very well be due to other limiting factors besides the phone... It was also rather song specific, hotel california live sounded quite awesome actually.
Conclusion: I can imagine why people like the HE-1000. I'd take one if it was given to me, no question about it
. As it stands, my audio budget is just shot for the next couple of years at least so I will just watch the train passing on this one
. That does not turn me away from my stat rig but that would probably have won me over 5 years back.
Last stop was
Stax, having my traditional chit chat with Sasaki-san (director of sales):
- Nothing new at the show but we may expect something at the fall festival in the entry level (portable gear)
- No news about the T2 return but the project isn't completely canned at least
- We may see a refresh of the existing driver line, in particular the SRM727 and / or SRM007t2
- About the rumour in regards to changes to the SR007 and SR009: there's no such thing! (what do you expect them to say
).
- About the pads: there might have been alterations to the foam material but that is admittedly out of Stax control / something that sometimes happens at the supplier.
- Also sasaki-san commented that all their pads are made by hand by a small artisan. No two pads are identical to the others so these manufacturing variations may partly explain differences in sound perceived by some with some recent batches.
- Conclusion: Stax remains Stax, it's business as usual there
.
That's it folks, looking forward to reading about the zillion over things I missed ...
arnaud