Built a music server

Tin

Club Member
Back around Christmas, Newegg had a great deal on an Atom D510 barebone and 2GB of memory for the great price of $120 shipped. Ive always wanted to build a dedicated music/movie server, and I felt this was the perfect ticket. The system itself has a rather small footprint, smaller than a standard DVD player, although it is a tad taller, but not too bad. I chose Vortexbox as my OS, as I felt it would be perfect in that its a dedicated music server distro based off of Fedora 14. I had a spare 1TB hard drive laying around, so in it went, and off I went.

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As you can see, there really isnt much to the system. It was kind of a pain in the ass to assemble, as some components dont fit the conventional way.

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For the sound card, I picked the Audiotrak HD2 Advance DE, which is a dedicated stereo sound card. Audiotrak cards are made by Egosystems, who make studio-grade equipment for digital audio workstations. Not a gamers card, but thats not what this is for...music only. It uses a fully differential output (audio geek talk for something that has no crosstalk) and uses 3 socketed dual opamps. The stock opamps had to go, and in their place, I put much higher end units sourced from Digi-key...one of the most renowned electronic components around. The new opamps match the noise floor of the DAC (digital to analog converter) at 120dB, and have a much higher bandwidth, so as to let every minute detail in the music be heard.

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Here she is in all her glory, fully assembled. It looks rather nice sitting on the rack too.

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...and the back of the unit...note the true analog RCA outs on the sound card. No wimpy 3.5mm headphone jack there.

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Then it gets sent to the speakers via those lightbulb things :D.

Everything is controlled through my phone, web browser, or my Logitech remote...works like a charm. Vortexbox is a very good OS...better than any other Ive seen for a music server. You insert a CD, and it rips it automatically with no user intervention. All tracks are ripped to FLAC (Free Lossless Audio Codec) by default, and all ID3 tags and album art is retrieved as well. This thing also rips DVDs to various formats. Not only does it rip CDs to FLAC, it also mirrors them to mp3 and Apple Lossless for you iPod/mp3 player folks. Total cost of components, including stuff I had on hand was ~$300. Pre-built systems of equivalent capability cost upwards of $1000...much more in many cases. Id say I did good...and it has been rock solid since day 1.
 
Wow. That's pretty cool. I assume that you can stream to your phone (or any computer) from anywhere via 3G?
 
Wow. That's pretty cool. I assume that you can stream to your phone (or any computer) from anywhere via 3G?

I cant do that just yet, but Ive been working on it. For that, I need to run Apache webserver. I use Squeezebox receivers around the house to stream music to my other stereos and such, and they interface with the music server flawlessly. The Squeezebox Server software used on the music server doesnt support web streaming, I need to set up a separate service for that.
 
I see. I'd like to eventually set up my current P4 processor & mobo into an HTPC/music and video server. I'm not really sure where to start though.
 
Backup is also very simple with this setup. Plug in a USB drive, open a web browser and navigate to the music server, hit the "backup" icon, and its done. The networking is very simple on this too. Vortexbox comes with CIFS and NFS enabled by default, so its very easy to add/remove files to it over the network, regardless of which OS you use...Windows, OS X, or Linux. Sometime down the line, Id like to get a case that fits better on the stereo rack. Even though this is unobtrusive, it still looks like a computer sitting there.
 
Looks sweet! I really want to listen to your set up. :lol: So, what kind of headphones do you have? I tested the Sennheiser HD 280 Pro, and really liked them, especially considering the small price.
 
Looks sweet! I really want to listen to your set up. :lol: So, what kind of headphones do you have? I tested the Sennheiser HD 280 Pro, and really liked them, especially considering the small price.

The system sounds pretty good, but it does have its quirks. Ive been running single driver speakers, which are some of the most lifelike sounding out there, especially on acoustic and vocals. The problem with them is theyre almost too resolving...poorly engineered music (like Metallica) sounds terrible on them. If you put something with high dynamic range on them (like Dire Straits), they sound pretty damn good. I want to build a 2-way high efficiency speaker one of these days. The parts Im interested in are large JBL horns with Eminence Beta woofers. These will be ~100dB efficient...meaning theyll rip your face off with 1W of power :lol:. My amp only puts out a bit over 3W, so I need the efficiency to be able to hit those louder volumes.
 
Looks sweet! I really want to listen to your set up. :lol: So, what kind of headphones do you have? I tested the Sennheiser HD 280 Pro, and really liked them, especially considering the small price.

I have a set of 280Pros for years and bought a set of Audio Technica M50s when the headband on the 280s started to crack. I like them a lot better than the 280s. I only drive them off an ipod though, so it may be that the 280s just need a bit more power to drive them. I used to have a set of MDR-V6s as well which were pretty nice for the money.

I cant do that just yet, but Ive been working on it. For that, I need to run Apache webserver. I use Squeezebox receivers around the house to stream music to my other stereos and such, and they interface with the music server flawlessly. The Squeezebox Server software used on the music server doesnt support web streaming, I need to set up a separate service for that.

Not sure if it's still applicable, but I used to be able to do some of that with shoutcast. I think the biggest problem is going to be bandwidth from your ISP to send it out.
 
I was going to run it converting FLAC to 128kb ogg on the fly...should work well with my upstream. Im getting about 300kb up...not great, but it should work ok.
 
The system sounds pretty good, but it does have its quirks. Ive been running single driver speakers, which are some of the most lifelike sounding out there, especially on acoustic and vocals. The problem with them is theyre almost too resolving...poorly engineered music (like Metallica) sounds terrible on them. If you put something with high dynamic range on them (like Dire Straits), they sound pretty damn good. I want to build a 2-way high efficiency speaker one of these days. The parts Im interested in are large JBL horns with Eminence Beta woofers. These will be ~100dB efficient...meaning theyll rip your face off with 1W of power :lol:. My amp only puts out a bit over 3W, so I need the efficiency to be able to hit those louder volumes.

Dire Straits > Metallica anyway. :lol:

Seriously though, I absolutely love seeing your audio projects. I've been wanting to PM you about putting together a "listening studio" of a nice turntable and tube amp for quite some time now. I'm virtually clueless when it comes to this though. I either want to just buy older hi-fi equipment, or try and piece something together. I'm building up my vinyl collection a bit and just play them on a cheapy Sony through my home theatre system. Sounds way better than MP3, but I know I have a HUGE room for improvement.
 
Dire Straits > Metallica anyway. :lol:

Seriously though, I absolutely love seeing your audio projects. I've been wanting to PM you about putting together a "listening studio" of a nice turntable and tube amp for quite some time now. I'm virtually clueless when it comes to this though. I either want to just buy older hi-fi equipment, or try and piece something together. I'm building up my vinyl collection a bit and just play them on a cheapy Sony through my home theatre system. Sounds way better than MP3, but I know I have a HUGE room for improvement.

I can offer you some guidance...no problem. Vintage hifi is good, but most of it needs restoration work, as capacitors and resistor values drift with age. Regardless of what you may hear people say about "vintage sound", theres no such thing. A 40 year old Marantz receiver shouldnt have a warm sound, it should open and airy, characteristic of how it sounded new. When components drift out of spec, this introduces distortion or limits the bandwidth it would otherwise be capable of with new components. I can give you a hand, but older stuff will most definitely need some work. This goes for speakers as well...the passive components in them drift out of spec with age, too.
 
I have a set of 280Pros for years and bought a set of Audio Technica M50s when the headband on the 280s started to crack. I like them a lot better than the 280s. I only drive them off an ipod though, so it may be that the 280s just need a bit more power to drive them. I used to have a set of MDR-V6s as well which were pretty nice for the money.
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I have yet to try the M50s, but would love to give them a test run. I will also run them off of an ipod, but was looking at this headphone amp:

http://www.amazon.com/FiiO-E5-Headphone-Amplifier/dp/B001P9EQH8/ref=pd_bxgy_e_text_b
 
If you want something American made, check out Grado headphones...theyre one of the best out there, and the price isnt too shabby either. Grados are one of the finest rock headphones around...hand made right in New York. The whole SR series and Reference series is made here in America...only one model they make is built overseas.
 
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I have yet to try the M50s, but would love to give them a test run. I will also run them off of an ipod, but was looking at this headphone amp

You're welcome to listen to them and my 280Pros if you're on the west side.

If you want something American made, check out Grado headphones...theyre one of the best out there, and the price isnt too shabby either. Grados are one of the finest rock headphones around...hand made right in New York. The whole SR series and Reference series is made here in America...only one model they make is built overseas.

I figured if he was looking at 280Pros, he wanted a closed set of cans. I thought the Grados were open?

Check out head-fi.org for some more reviews/options and Headroom (http://www.headphone.com/) for a bunch of specifications on headphones (including some nifty charts you can set-up).
 
Can someone recommend me a pair of head phones? I will be using them with my Ipod. I would like them to be relatively small. No ear buds. Noise canceling would be nice, as I travel. I will be mainly using them at work. Lastly try to keep it under $50 because of me traveling and using them at work. Lastly Tin, what is the thing with the vacuum tubes?
 
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