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Would people be interested in a new high quality DAP that takes 2.5 inch HDD's? - Page 3

Poll Results: Would you buy a high quality hard drive based DAP?

 
  • 70% (38)
    Yes
  • 29% (16)
    No
54 Total Votes  
post #31 of 61

.


Edited by seeteeyou - 11/4/14 at 11:49pm
post #32 of 61

My main hesitation about using a 2.5" drive is its size. By the time you add in batteries, you've got a reasonably large brick. 

 

definitely would not want an spinning-platter drive in a portable device.

 

Even with SSDs running $1/GB these days in the smaller sizes, its hard to beat the density of microSD cards, which are under $1/GB for true Class 10 speeds. The SanDisk and Transcend ones I use with Android devices typically clock out at over 20 mbps both read and write. Carrying eight of them in the space of a credit card would give me 512 GB. Not my complete music collection, but I get around 3-4 CDs per GB using Apple Lossless, so that is 1,500 CDs or so. 

 

Another thing to think about is unlimited "smartphone" data plans. With my phone, I can pull lossless right off my home server faster than I can play it. I personally would prefer microSD in the device with a TCP/IP stack and an OS that supported ssh and VPN if I were to "use up" space in a physically larger device.

post #33 of 61
Quote:
Originally Posted by mark2410 View Post

 

according to windows just over 42 thousand files in my music folder or 600gb of the stuff.

Live long and prosper.

 

Take a while to hear all those, LOL I've actually got a few TBs but a good portion is HiDef so drive storage would be appealing. 24/48 sounds great on the go.

 

I like the idea of swapable 1.8" ssd drives


Edited by goodvibes - 11/14/12 at 5:08pm
post #34 of 61
Quote:
Originally Posted by jeffsf View Post

My main hesitation about using a 2.5" drive is its size. By the time you add in batteries, you've got a reasonably large brick. 

 

 

And other high end players (Hifiman, DX100, C4 etc.) are tiny? :D

 

Batteries can be made nice and flat these days... My laptop is 12.9mm thick with the lid closed... in those 12.9mm there's a aluminium casing, screen, keyboard. mainboard, coolingsystem and the battery...This battery has enough power to keep the Core i5 based laptop running for 7h under medium load.

I think a device with an outer casing a little over the width/length of a 2.5" drive, can be kept under 20mm thickness, even when using a 2 layer Lithium cell to improve battery life.

Yes that might be slightly brick-ish, but IMHO it is still quite pocketable, and think about it, you can put in a 1TB drive for less than $90, or spend a little more and go SSD...

And then there's the huge number of *enter flavour of flash memory here* to SATA converters, allowing you to use pretty much any memorycard you have laying around in a device like this.

post #35 of 61

Actually what I'd like to see is an audiophile music player in the form factor of a (albiet fat) 7" tablet. Runs on Android with USB audio, comes with a dock to keep it upright (I'd prefer the dock on a long side, so it'll be landscape-oriented - think of a Squeezebox tablet version), with 8gb built-in memory (for music player apps, etc) and two (micro)SD slots. A circuit more like a CDPlayer - AD1955 DAC, AD797+TPA6120 (or a better headphone driver IC). No lineout necessary for my needs since that headphone driver circuit may be enough for most cans/IEMs I'll use away from a desk with a fixed or transportable set-up on it. I won't mind if it's a bit thicker than the Acer Iconia or Samsung Galaxy 7" if I get a bigger battery. Can't omit WiFi though, with NAS/portable HDDs streaming uncompressed now.

post #36 of 61

If you guys start this, I would love to get involved in the coding part. I'm studying IT, so coding is not a problem for me, even though I never worked on Custom Roms. Maybe some Rockbox devs would help us out.

 

I would rather go with 1.8". Toshiba has a 250GB Hard drive and I got a 1.8" External one with a samsung in it.

If you want more Space, you can always go with an SSD (don't remember the brand, but I found some 1.8" 500GB SSDs yesterday if I remember right)...

 

 

Native Rockbox!!! Both thumbs up.

 

 

The DAP should have a good DAC in my opinion, or atleast an option to get direct digital data on an external DAC (same as Ipod to HP-P1).

 

 

24/192 would be my choice, but 24/48 would also be perfect.

 

 

Replacable Hds, Direct Digital Output and Rockbox, I'm in ;)


Edited by Sleinzel - 11/15/12 at 2:08am
post #37 of 61
Thread Starter 
Quote:
Originally Posted by goodvibes View Post

Live long and prosper.

 

Take a while to hear all those, LOL I've actually got a few TBs but a good portion is HiDef so drive storage would be appealing. 24/48 sounds great on the go.

 

I like the idea of swapable 1.8" ssd drives


lol

 

but i didnt think i had that much compared to some around here

post #38 of 61

no too big, and cost will be too much

 

2.5in hard drive

atleast 2000mAh battery

PCB + UD100 for example.

+ screen, buttons, casing, connections.

 

NOPE.

 

Cost and size will be too much and functionality/portability/ build quality too little.

 

the 4x SD card idea is genius. And much better IMHO. You can extend as much as you want. 

 

 

But I already have 64gb on my S3, which is a digital source and not a bad analogue one with the right cable. So I see no point.

 

 

 

But if it were to happen, then 2.5" would just be too big, and SSD's still aren't cheap enough.

post #39 of 61
Quote:
Originally Posted by WiR3D View Post

no too big, and cost will be too much

 

2.5in hard drive

atleast 2000mAh battery

PCB + UD100 for example.

+ screen, buttons, casing, connections.

 

NOPE.

 

Cost and size will be too much and functionality/portability/ build quality too little.

 

the 4x SD card idea is genius. And much better IMHO. You can extend as much as you want. 

 

 

But I already have 64gb on my S3, which is a digital source and not a bad analogue one with the right cable. So I see no point.

 

 

 

But if it were to happen, then 2.5" would just be too big, and SSD's still aren't cheap enough.


Toshiba 1.8" 240GB HDs are avaible for 90$ on ebay... Should be enough storage, not too big, and a 2000mAh battery is 16$, LCD Display should be also around 10-20$.

 

So we are at 140$... With everything else we need, we could certainly stay under $200, still cheaper than a Ipod Classic, while offering native Rockbox, easy to change harddisc and maybe a really good dac.

 

Also, you can get 40GB 1.8" HD for 10$ on ebay... Cheapest 64GB SD Card I found is 40$ (http://www.ebay.com/itm/Toshiba-MK4004GAH-40-GB-Internal-4200-RPM-1-8-HDD1524-Hard-Drive-PARTS-/280853914867?pt=US_Internal_Hard_Disk_Drives&hash=item416432a4f3), (http://www.ebay.com/itm/OEM-64GB-64G-64-G-SDHC-SDXC-ultra-fast-SD-C10-Card-Class-10-Class10-/320791164412?pt=Digital_Camera_Memory_Cards&hash=item4ab0a4b5fc).

 

So if you wanna have 240GB Storage, you can go with 90$ HD, or $160 4* 64GB SD Card. 1.8" is used in the Ipod Classic, so no size problem there.

 

So, you can build a 40GB DAP for around 60-80$... How do you wanna beat that?

 

SSD prices will come down more and more. If we would start doing this now, it'll take some time.

 

This DAC would rock:

http://www.akm.com/prodfolder-dac.asp?p=AK4480


Edited by Sleinzel - 11/15/12 at 7:28am
post #40 of 61

I don't really see the point in creating something like this for 1.8" drives... That'd be too much like an iPod Classic...

post #41 of 61
Quote:
Originally Posted by Coop View Post

I don't really see the point in creating something like this for 1.8" drives... That'd be too much like an iPod Classic...

So, the ipod Classic is bad? 

 

I mean the iPod Classic is a pretty good DAP in terms of Storage, but not in terms of music, codec support and it has itunes... So having an iPod Classic with a good DAC, Digital Output, Easy to change HD, Rockbox in it, and that all at a lower price than an iPod Classic. What's wrong with that?

post #42 of 61
Quote:
Originally Posted by Sleinzel View Post

So, the ipod Classic is bad? 

 

I mean the iPod Classic is a pretty good DAP in terms of Storage, but not in terms of music, codec support and it has itunes... So having an iPod Classic with a good DAC, Digital Output, Easy to change HD, Rockbox in it, and that all at a lower price than an iPod Classic. What's wrong with that?


1. You can Rockbox a classic and use FLAC/WAV whatever you like.

2. A good DAC is relative. Some people like the Cirrus Logic DAC.

3. I would imagine that using Rockbox for commercial use would require the company building the DAP to purchase a license and so upping the price of the DAP.

4. Digital out would be nice.

5. Hot swap HD would be nice.

post #43 of 61

If we built a player using 1.8" Hard drives, it should be not too hard to also create an microSD version. Different case and different storage, nothing more.

post #44 of 61
Quote:
Originally Posted by RingingEars View Post


1. You can Rockbox a classic and use FLAC/WAV whatever you like.

2. A good DAC is relative. Some people like the Cirrus Logic DAC.

3. I would imagine that using Rockbox for commercial use would require the company building the DAP to purchase a license and so upping the price of the DAP.

4. Digital out would be nice.

5. Hot swap HD would be nice.

 

Yes, I know that iPod Classic is able to run Rockbox. Its still easier to own a product who officially supports rockbox. No Rockbox licence, since this project would be open source in my opinion. Selling everything for non-profit, or maybe provide a kit to build the player yourself. Its not always about the money.

 

I heard of Cirrus Logic DACs, i'll take a better look at it if I get some time.

post #45 of 61

Not sure these are relevant, but: 1) 1.8'' HDD only provides 320GB of storage (which may not be enough for someone like myself) currently, while 2.5'' HDD provides 1TB for $120; and 2) iPod with Rockbox cannot output digital.

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