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The diary entries of a little girl in her 30s! ~ Part 2 - Page 1253

post #18781 of 21414
Quote:
Originally Posted by EveTan View Post

Only $760. Wow that's pretty cheap smily_headphones1.gif (not sarcastic)

Better then the AK120 which goes for 1300
post #18782 of 21414
Quote:
Originally Posted by MuppetFace View Post
 

I'm super psyched about Sony's 35th Anniversary Walkman, the NW-ZX1 ...

 

Even though for me the ZX1 is insanely expensive (much than I have ever spent on a single piece of audio gear) I am sorely tempted to get one. I've always been yearning for high capacity, high quality player with a good interface which will unlink me from having to buy high capacity phones. There is something sweet about this being an anniversary model as well... I hope it's the kind of thing that lasts for a decade.

 

And that design. Nghh. Classic Sony slab.

 

I am trying to get information about international availability for this beauty :s

post #18783 of 21414
Quote:
Originally Posted by a_recording View Post

Even though for me the ZX1 is insanely expensive (much than I have ever spent on a single piece of audio gear) I am sorely tempted to get one. I've always been yearning for high capacity, high quality player with a good interface which will unlink me from having to buy high capacity phones. There is something sweet about this being an anniversary model as well... I hope it's the kind of thing that lasts for a decade.

And that design. Nghh. Classic Sony slab.

I am trying to get information about international availability for this beauty :s

When u have more info please let me know.
post #18784 of 21414
I wonder how much different the F880 series will sound from the flagship. I wouldn't mind trying one of those, since I've never heard a Sony dap.
post #18785 of 21414

Btw Happy Birthday Arly!!!

post #18786 of 21414

Interesting little band from the 70's that nobody's ever heard of:http://www.youtube.com/watch?v=-Plfbya_7yU  Cool mix of funk, punk and even a little prog thrown in. Wish they had recorded more albums...

post #18787 of 21414
Quote:
Originally Posted by MuppetFace View Post
 

I'm super psyched about Sony's 35th Anniversary Walkman, the NW-ZX1 ...

...

 

 

 

 

"The NW-ZX1, on the other hand, is quite a strange beast, marketed, and priced, to be a high-end device. It sports the same audio prowess as the F880 but, curiously, actually removes some features for the sake of better audio quality. The ZX1 does away with the FM radio and even digital noise cancellation to reduce the amount of possible audio interference. The device also has a bulge at the rear to house a larger capacitor and headphone amplifier. The NW-ZX1 comes with 128 GB of storage. Like the F880 series, the ZX1 also touts Sony’s S-Master HX digital amplifier that reduces distoration and noise on all frequency ranges, whether high or low. To best experience the audio quality offered by the ZX1, Sony doesn’t include free earphones in the package and instead recommends buyings one if its Hi-Res audio headsets separately."

 

Source: http://androidcommunity.com/sony-walkman-nw-zx1-and-nw-f880-series-unveiled-coming-in-october-20130925/

 

$760 USD

 

Hnnnngggg!! A high end DAP that sounds good, looks good, is stable to use, is easy to carry around, and celebrates the Walkman lineage? Yes plz.

 

Right there with ya!

post #18788 of 21414
Quote:
Originally Posted by MuppetFace View Post
 

I'm super psyched about Sony's 35th Anniversary Walkman, the NW-ZX1 ...

...

 

 

 

"The NW-ZX1, on the other hand, is quite a strange beast, marketed, and priced, to be a high-end device. It sports the same audio prowess as the F880 but, curiously, actually removes some features for the sake of better audio quality. The ZX1 does away with the FM radio and even digital noise cancellation to reduce the amount of possible audio interference. The device also has a bulge at the rear to house a larger capacitor and headphone amplifier. The NW-ZX1 comes with 128 GB of storage. Like the F880 series, the ZX1 also touts Sony’s S-Master HX digital amplifier that reduces distoration and noise on all frequency ranges, whether high or low. To best experience the audio quality offered by the ZX1, Sony doesn’t include free earphones in the package and instead recommends buyings one if its Hi-Res audio headsets separately."

 

Source: http://androidcommunity.com/sony-walkman-nw-zx1-and-nw-f880-series-unveiled-coming-in-october-20130925/

 

$760 USD

 

Hnnnngggg!! A high end DAP that sounds good, looks good, is stable to use, is easy to carry around, and celebrates the Walkman lineage? Yes plz.

 

Everything looked great right until I saw the price tag Eeek! 

post #18789 of 21414
Quote:
Originally Posted by a_recording View Post
 

Btw Happy Birthday Arly!!!

Thanks Lachlan, now if only that DT1350 I bought arrived tomorrow I'd have a great old time

:beerchug:

 

Quote:
Originally Posted by veyrongatti View Post
 

 

Everything looked great right until I saw the price tag Eeek! 

It's 2013, seems like the businesses figured out they can price their stuff sky high and we'll sell a kidney to buy it

post #18790 of 21414

So... I've been looking into upgrading my home Amp/DAC combo but I'm still not sure if I should just upgrade one or the other or both!

For DAC, I use a NuForce Icon HDP. Nice little DAC/amp/pre-amp combo, it's a bit treble happy (both DAC and Amp sections).

For Amp, I use a Lehman BCL. Fast, linear, multiple gain settings.

 

I think it's a good "cheap" combo but I think it might be time to scale up a bit.

What do you guys/gals think?

 

The thing is that, it cannot be "tube" based, nor super big. I actually would like to keep the same "tiny" profiles... (probably one of the reasons why I haven't bought Schiit amps or things like that).

 

Any suggestions?

 

Headphones I'll use at home: MrSpeakers Mad Dogs, Alpha Dogs, Ultrasone Signature DJ (at work too, I use a Magni), Denon D5000 (Lawton modded), Yamaha HPH-MT220, Perfect Sound Dido D901, etc.

 

 

Thanks. ;-)

post #18791 of 21414
Quote:
Originally Posted by shotgunshane View Post  I wonder how much different the F880 series will sound from the flagship. I wouldn't mind trying one of those, since I've never heard a Sony dap.

 

My semi-educated but mostly uneducated guess: less hiss, blacker background, hence better spatial presentation, as well as better textured, weightier bass, and better power delivery (both I/V). The caps they use in the ZX1 are big, low ESR (more efficient, as it's able to use more of the PWM signal clock, and hence more accurate voltage conversion, better current delivery) and that's why they take up that extra space in the ZX1. The S-Master HX is using a differential full-bridge design, and matching LC filters is important as well.

 

On low-pass filters in PWM systems (selected passages from various companies involved with DSP design):
Wolfson:
The filters used in Class D outputs are made up from inductors and capacitors, rather than the simpler resistor and capacitor filters used in line-level circuits. The reason for this is that power efficiency is important. The resistor in a filter dissipates power, but the inductor is reactive and stores energy magnetically and releases it, “transforming” the energy; this makes the filter much more efficient.
 
The audio current for the headphones must pass through the inductor. It is important that it maintains its inductance at the peak current, without the magnetic core saturating and losing its inductance. It
is also important that it does not overheat. Inductors generally have two current ratings, saturation and self-heating, specified separately; although sometimes the lower of the two is given as a single parameter. The saturation current is more important for Class D amplifiers as it can affect peak currents and introduce distortion.
 
Apex Analog:

Capacitors of the split-inductor topology must be capable of bipolar operation and will be very large when the filter is designed for both high current and low signal frequency. While the bipolar capacitors exhibit very low ESL and ESR to provide good roll off in the high frequency spectrum, this leads to very large and expensive banks of capacitors. The dual-capacitor topology can provide a cost savings, at the expense of high frequency performance, by substituting a pair of electrolytic (or possibly tantalum) capacitors of twice the size. To convince yourself this a valid substitution, forget the ground connection and think of two series connected capacitors in place of one. This substitution usually allows the use of unipolar capacitors.

 
If one could acquire a perfect PWM amplifier (equal rise and fall times, no dead time plus an exact out of phase condition) and perfectly matched inductors, current through each of the dual capacitors would be equal and phased such that no current would flow into the ground node. Even with these imperfections, the ground node current will be a small percentage of the capacitor current.
 
Analog Devices:
LC Filter Design: To save on cost and board space, most LC filters for Class D amplifiers are second-order, low-pass designs. The speaker serves to damp the circuit’s inherent resonance. Although the speaker impedance is sometimes approximated as a simple resistance, the actual impedance is more complex and may include significant reactive components. For best results in filter design, one should always seek to use an accurate speaker model. A common filter design choice is to aim for the lowest bandwidth for which droop in the filter response at the highest audio frequency of interest is minimized. A typical filter has 40-kHz Butterworth response (to achieve a maximally flat pass band), if droop of less than 1 dB is desired for frequencies up to 20 kHz. If the design does not include feedback from the speaker, THD at the speaker will be sensitive to linearity of the LC filter components
 
On the other hand, the principal cost disadvantage of Class D is the LC filter. The components—especially the inductors — occupy board space and add expense. In high-power amplifiers, the overall system cost is still competitive, because LC filter cost is offset by large savings in cooling apparatus. But in cost-sensitive, low-power applications, the inductor expense becomes onerous. In extreme cases, such as cheap amplifiers for cell phones, an amplifier IC can be cheaper than the total LC filter cost. Also, even if the monetary cost is ignored, the board space occupied by the LC filter can be an issue in small form-factor applications.
 
Texas Instruments:
The performance of filtered PWM as a digital-to-analog converter depends heavily on the choice of the analog low-pass filter. When one thinks of filter performance, they tend to think of active filters (built using op-amps) rather than passive filters (composed solely of resistors, inductors, and capacitors). Active filters avoid the impedance loading issues suffered by passive filters, where the upstream or downstream impedances surrounding the filter can change the filter properties. Passive filters can offer lower cost and reduced design complexity.
 
Passive filters do not suffer as much from a gain bandwidth problem [as do active ones], although they do have their own high-frequency design issues (especially inductors). The biggest drawback of passive filters has always been impedance related: upstream and downstream impedances can affect the performance properties of the filter. In the PWM/DAC application, upstream of the filter will be the PWM output from the DSP. This is a low output-impedance source that will not significantly affect the filter. In the downstream direction, one can use a low-cost voltage follower op-amp to create a high-impedance input.

 

Quote:
Originally Posted by a_recording View Post  Btw Happy Birthday Arly!!!

 

+2, Feliz aniversário!

 

Quote:
Originally Posted by veyrongatti View Post  Everything looked great right until I saw the price tag Eeek! 

 

That's why I'm looking at the F886 --- lower price tag, nearly the same technology.

post #18792 of 21414
Quote:
Originally Posted by DigitalFreak View Post
 

 

Happy Birthday ^^

post #18793 of 21414

Did you guys see this? :eek: Supposedly this is the upcoming HiFiMAN HM-700 DAP:

 

 

On a side note, I may possibly meet Dr. Bian next week. If you guys have questions for him, PM me and I'll try to squeeze them in.

post #18794 of 21414
Will he consider re-releasing the re0? It was such a classic.

ClieOS had an update about an 802 as well. No pics though.
Edited by shotgunshane - 9/26/13 at 8:27pm
post #18795 of 21414
Quote:
Originally Posted by DigitalFreak View Post
 

Thanks Lachlan, now if only that DT1350 I bought arrived tomorrow I'd have a great old time

:beerchug:

 

It's 2013, seems like the businesses figured out they can price their stuff sky high and we'll sell a kidney to buy it

 

Oh didn't know it was your B-day. Happy birthday Arly you old fart ;).

 

That Sony DAP does look very nice. Too bad it doesn't have expandable memory :(.

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