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  1. Shefffield

    How much impact does driver material actually make?

    I'm tempted to approach this discussion with a slightly different angle... My thing is DIY, and since 2010 digitally controlled speakers. With the possibilities of FIR filters and ultra steep digital high and low passes, there's a lot more freedom to address the imperfections of various...
  2. Shefffield

    Current music from and about Ukraine and its people- no politics, please.

    https://ignea.band/ Oriental Metal from Ukraine. I love it!
  3. Shefffield

    Poll: Where are you guys from?

    Near Munich, Germany
  4. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    Very interesting! I even thought about getting a pair of the KEF drivers myself and building something around them. I know they're good. And Camilla DSP is also interesting. Back in 2009..10 when we built Zoé we used BruteFIR for convolution. I do like it because I am a Linux guy for almost 20...
  5. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    The goal is to learn. I admit that part of the motivation for this is "because it's possible and unconventional". That doesn't mean that I throw away money though. Quite the opposite. My design has always been modular. So what should stop me from making these modules serviceable? Just put a...
  6. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    AES67 over Gstreamer is fascinating stuff. I didn't know that Gstreamer can do that. Thank you for the hint! I don't have the ambition to route everything over single cable. I'm perfectly fine with a ring type cabling starting at the convolved PC. Even multiple cables to each speaker can be...
  7. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    Thanks, guys! Correct, I want to use 'ring-machines' with FIR filtering. So the setup of the whole system is based around a PC host running a convolver software that splits the incoming stereo signal into individual channels for each driver. Currently I use a 3-way speaker, so the software puts...
  8. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    I don't trust wireless since I read that Bluetooth uses a lossy compression algorithm. A streamer is out of the question because I run my own digital crossover and room correction filters. A PC as head unit is fine for my anyway, I just don't see a need for a streamer. That's just a piece of...
  9. Shefffield

    General discussion/planning for "fully digital" DIY speaker - DAC boards, protocols, interfaces etc

    Hello forum, given all the available DIY boards and modules, it should be possible and not overlay complicated to build a DIY speaker that's pretty much fully digital. With that I mean: You connect it to a computer and you're done. Picking good options out of the vast selection is quite a...
  10. Shefffield

    In-wall speakers: staging? listening experiences? optimization targets?

    I'm not going to angle the speakers. My design is based on the widest dispersion I can achieve. That's why I use 19 or 20 mm tweeters and dome mids. That's why I plan 3 or 4 ways plus subwoofers - to be able to use each driver only in a range where it covers at least +/- 60°, preferably more...
  11. Shefffield

    In-wall speakers: staging? listening experiences? optimization targets?

    90 mm coax drivers for mid-high above 400..600 Hz are my alternative plan. I'm going to compare them against the mid domes. However, given my 2,5 to 3 m listening distance, I don't expect the vertical dispersion to be that critical. Additionally, I have an attic like living room with a really...
  12. Shefffield

    WTB Hypex NC252MP or NC122MP modules

    Interesting... I have a friend in Lyon. I could ask him for a favour, to pick it up from the seller. :p
  13. Shefffield

    Solder - unleaded or classic Sn60Pb38Cu2?

    Wow, that's far more feedback than I was hoping for. Thanks, guys! I think I'll go with Stannol HF32, which seems to be still available from many online shops here in Germany. Since someone was curious, I use an Ersa RDS 80 soldering station, so achieving and holding a sufficient temperature...
  14. Shefffield

    Before and After...PASS LAB FirstWatt F5 Turbo V2

    Regarding distortion figures, Nelson Pass's papers are interesting imho: https://www.passdiy.com/project/articles/audio-distortion-and-feedback https://www.passdiy.com/project/articles/leaving-class-a I believe I read something in one of his articles that the distortion in a push-pull design...
  15. Shefffield

    Solder - unleaded or classic Sn60Pb38Cu2?

    Hello, forum! I'm not really good at soldering. In order to maximize my chances for good, reliant connections I still think that using leaded solder makes it a lot easier. As far as I know, it is still legal for private users (here in Europe) to buy and use leaded solder. Where to purchase it...
  16. Shefffield

    Influence of fs (driver resonance frequency) on active/passive XO development?

    Hello forum, I hope this is the right section of the forum to discuss this topic. I'be been wondering about which or how much influence the resonance frequency of a driver/driver in cabinet has - especially since I am more interested in active crossovers. Sure, I am aware that for passive...
  17. Shefffield

    Introduction to forum: digital speaker DIY enthusiast

    Never felt the urge to do that. The delay doesn't bother me at all. It's just a small gap between pressing 'play' and hearing the music.
  18. Shefffield

    Advice for DIY fixed ratio line level attenuator (voltage divider) for active DIY speaker

    Thank you all, guys! Very helpful! I'm currently traveling and will return only next year. Then it's time to heat up the soldering iron. I think it would be a good idea to place the L-pad at the end of the cable running from the DAC to the amp (in the plug connecting the amp module then), so...
  19. Shefffield

    Introduction to forum: digital speaker DIY enthusiast

    Thank you for your great input, fluid! Same type/slope and frequency crossovers are the default in Acourate. If you bypass the macros you could however mix anything, the possibilities to put together "hand-crafted" filters are pretty much endless. Acourate has a macro function to simulate the...
  20. Shefffield

    Recommendations for DIY balanced line level cables (voodoo-free)

    Hello forum, I have to rearrange my DAC and amplifiers setup and need to make new cables for that. The units in question are an RME Fireface UFX II as DAC/preamp and a bunch of Powersoft D-Cell 504 amp modules (technical specs in this post...
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