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Cheesebaron

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Posts posted by Cheesebaron

  1. I've owned a pair of DT770 600 Ohm and I wasn't super impressed with the sound. The treble was a bit too forward and brittle sounding. They do go very very deep in the bass. Around 25Hz was still audible! The build quality on the DT770 is very good and the comfort i decent, they might clamp a bit to begin with, but can be stretched to relieve the pressure. They are built like a tank and can survive abuse very well.

     

    I heard some people say the the DT770 LE are a bit more lively and very easy to drive, so if you go the DT770 route, they might be for you. I haven't hear the Momentum yet, so I can't tell much about those, however if you want a more portable headphone, they are most likely better in that regard. You should also consider the V-Moda M-100, Beyerdynamic T51p and B&W P7 if you want a portable headphone.

  2. I have a Fiio X3 i bought from mp4nation.net. They sent with fedex, came two days later from China, no import taxes or nothing. I guess I was lucky. The player itself is very nice, I've bought a microSD to SD card adapter, because at the time I bought it 128 GB microSD cards were not widely available.

     

    Compared to the iPods the X3/X5 and iBasso DX50/DX90/DX100 beats them by far. There is just not enough room in them to accommodate the necessary electronics.

  3. Not sure how the used market is where you are, but you really can find some gems hidden in between all the shit people sell. I.e. locally I can find a very nice pair of Rega RS5 for less than half the price when they were new. Mirage, Focal, Heybrook, and many more. Maybe take a look at some used speakers in good condition, that way you will get a LOT more value for your money.

     

    Best thing would be if you could borrow then and listen to them in the room you intend to put them in. As many other posts have pointed out, the room plays a big factor in how the speakers are going to sound. If you have a lot of hard reflecting surfaces it will sound like poop. If you position the speakers wrong it will sound like poop. So there is loads to take in consideration.

  4. I had a nice course at my university where we had to implement a small computer on an Field Programmable Gate Array (FPGA), we got the CPU handed to us, but we had to implement all sorts of things such as IO, UART, Displays and much more.

     

    Basically the CPU is a whole bunch of logical gates, but there is of course a lot more to it. CPU's have different microarchitectures, which usually are codenamed internally, for instance Intel uses locations for names, such as Haswell, Nehalem, Ivy Bridge etc. These define how the CPU's are structured internally. Then there are instruction set architectures (ISA), where modern desktop CPU's use x86-64, these define how you communicate with the CPU. Popular ones are PowerPC, MIPS, x86, SPARC, Itanium and lately ARM has gained popularity in mobile devices.

     

    Such instruction could look like:

    500px-Mips32_addi.svg.png

     

    Which tells to add stuff stored in Addr1 with the Immediate value and store it in Addr2. The CPU's internally have control units to route data, on a system bus, the correct places based on the instructions given to the CPU. Then other components such which are ALU's which basically multipy, divide and add bits.

     

    If you want to know more about Digital Design, I can recommend reading "Digital Design" by Frank Vahid. It is going to take a looong time to describe how a CPU works in detail on a forum and you won't get all the details about it.

  5. (..) I don't hear an improvement at all over my previous MB which had an ALC887 audio chipset (..)

     

    Yeah, so you probably won't hear much difference if you don't A/B test. Sure you might hear slight differences because they probably have some minor change in components around the chip. There won't be any night and day difference that you can remember for more than 30 seconds anyway...

  6. Sorry I just woke up when I wrote the above. With DAC in the second paragraph I obviously meant O2, but that doesn't change the fact that he was indeed using the ODAC.

     

    There could be some noise on the USB connection, which interferes with the circuitry in the ODAC. Not sure how the ODAC filters that out. Get a third person to listen. If you don't hear it, then don't worry about it :D

  7. Makes no sense as the HD800 are high impedance, compared to the output impedance on the O2, which is very low, this should mean the damping factor is very high and there should be no issues with hiss or anything like that.

     

    Maybe he doesn't have the DAC and it is plugged directly into the computer he can hear noise from the PC. It is not uncommon to hear some high pitch noise, I.e. when moving the mouse, or when a HDD is reading or writing, especially from the front IO if it is not shielded well. If he is using front IO, using the connector on the back can in many cases help, otherwise if the noise persists he just has a rubbish sound card.

     

    If you go with the O2/ODAC combo, you will not run into this issue.

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