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Thread: MiniDSP for filtering

  1. #1
    Join Date: Sep 2016

    Location: The Netherlands

    Posts: 43
    I'm Johan.

    Default MiniDSP for filtering

    Hi everyone,

    I've built a pair of electrostatic loudspeakers and I'm considering to build a sub woofer for low frequency extension. I'm still not sure what type of woofer I want to build, although I like the idea of an open baffle woofer. For quick implementation of filters I like the idea of using a digital filter. As I want to keep things inexpensive / budget, I'm interested in the MiniDSP products like the 2x4 HD or NanoDigi 2x8 (B). Even without sub woofers a digital filter could be of good use , e.g. to damp the fundamental resonance of my electrostatic loudspeakers I think.

    I'm just not sure about sound quality, would a digital filter affect sound quality in a negative way? As far as I understand from reports it should not be a problem. Do you have any opinions about this idea? I'm not overly critical as I'm currently using budget gear like a Hifiberry DAC+ which I find adequate. So I don't need the best quality gear, as long as it's good I'm fine with it.

  2. #2
    Join Date: Mar 2008

    Location: Dunfermline, Scotland, UK

    Posts: 12,313
    I'm inthescottishmafia.

    Default

    These are a versatile and good sounding bit of kit, paticularly so given the low cost. I used the 2x4 for a couple of years or so, before moving to the 4x10 HD, which is considerably better sounding IMO, albeit at a cost. It will also give you remote volume control as a bonus.

    I'd recommend the 4x10 if funds allow.
    There are times when you canít do the sensible thing, when you canít act like a responsible adult at all; you just have to do whatever insane thing comes into your head. When bad people do it they end up murderers, when good people do it they end up heroes, and when the rest of us do it we end up looking like total idiots. But whenís that ever stopped us?

  3. #3
    Join Date: Dec 2015

    Location: vancouver

    Posts: 642
    I'm danilo.

    Default

    Quote Originally Posted by j.postema View Post
    Hi everyone,
    I'm just not sure about sound quality, would a digital filter affect sound quality in a negative way? As far as I understand from reports it should not be a problem. Do you have any opinions about this idea? I'm not overly critical as I'm currently using budget gear like a Hifiberry DAC+ which I find adequate. So I don't need the best quality gear, as long as it's good I'm fine with it.
    A DSP certainly can affect SQ. Clearly audibly so.. in My ears
    Which I find odd as some wax on about perceived differences in resistors... whereas I've never been able to hear differences.
    Yet DSP noises go largely unmentioned.
    Will it be of concern to you? Dunno..It may or may not.
    Happily dsp gizmos can be quite inexpensive so not a costly experiment.. Try and see ?
    My audio bits: Thorens / diy phono, CD/dvd player(s), diy pre, F6, Tannoy Golds in my boxes / my xovers, and of course all strung together with basic diy Wires
    Lots of Cd's, yet more audio files, a couple of hundred semi worn Lps.

  4. #4
    Join Date: Nov 2014

    Location: Denbigh, N. Wales

    Posts: 79
    I'm Mark.

    Default

    What are the current choices on these ?
    I've heard a lot about MiniDSP, probably because it's affordable. There's the Behringer one , what's it called ( 9624 ? ) .
    I've heard some non-convincing sound from systems built around these, and although it would be great ( with my horn-based system ) I've not wanted to commit to any combination that depends on using these DSP devices, so far. Currently I'm looking at one option that DOES , though .. tentatively.
    I've seen mods discussed to the Behringer to make it sound better, by guys like Gary Pimm in the 'states so I guess the stock one doesn't sound that good if you have a very transparent system.
    In the London area horn-crowd ( if four or five people is a crowd ) I hear recommendations for the Nadja ( is it ? ) being a fair bit better.

    Sorry, probably taking the thread off-topic but it would be interesting to hear some thoughts on where the MiniDSP sounds in terms of ranking. I'm concerned myself about how well a very good vinyl sound can get through these things, especially the HF bit.

  5. #5
    Join Date: Mar 2008

    Location: Dunfermline, Scotland, UK

    Posts: 12,313
    I'm inthescottishmafia.

    Default

    The 4x10 sounds considerably better than the Behringer to my ears Mark, though mine wasn't modified.
    There are times when you canít do the sensible thing, when you canít act like a responsible adult at all; you just have to do whatever insane thing comes into your head. When bad people do it they end up murderers, when good people do it they end up heroes, and when the rest of us do it we end up looking like total idiots. But whenís that ever stopped us?

  6. #6
    Join Date: Nov 2014

    Location: Denbigh, N. Wales

    Posts: 79
    I'm Mark.

    Default

    OK, that's useful .
    I should really try & get down to Luton some time early this year and have a listen to Pete's system with the replica WE16a's with Najda DSP. Kill two birds with one stone so to speak - long wide-band horn with compression driver and good DSP.

  7. #7
    Join Date: Mar 2008

    Location: Dunfermline, Scotland, UK

    Posts: 12,313
    I'm inthescottishmafia.

    Default

    Not heard Nadja gear as yet, have read good things though.
    There are times when you canít do the sensible thing, when you canít act like a responsible adult at all; you just have to do whatever insane thing comes into your head. When bad people do it they end up murderers, when good people do it they end up heroes, and when the rest of us do it we end up looking like total idiots. But whenís that ever stopped us?

  8. #8
    Join Date: Sep 2016

    Location: The Netherlands

    Posts: 43
    I'm Johan.

    Default

    Hi, thanks for your replies and suggestions!

  9. #9
    Join Date: Sep 2016

    Location: The Netherlands

    Posts: 43
    I'm Johan.

    Default

    Hi,

    I'm still considering to buy a MiniDSP like the 2x4 HD but still hesitating as I'm not sure if sound quality is compromised? I've read about limited amount of taps (2042 taps per chanel at 96khz, equivalent to 1021 taps at 48khz) which would not be enough for linear crossovers. But I'm not sure if I want that right now.

    At the moment I use an old Windows pc with Peace equalizer software. Would the MiniDSP 2x4 HD be much more limited in sound quality? I prefer the idea of having a compact device that is low power and dedicated. I'm planning to use my CD player as transport, connect it digitally to the MiniDSP and use the MiniDSP remote for volume control. Would that have an audible effect on sound quality? And how does sound quality of the 2x4 HD compare to the 4x10? The 4x10 being more expensive, I prefer the 2x4 HD budget option.

    Thanks!

  10. #10
    Join Date: Mar 2008

    Location: Dunfermline, Scotland, UK

    Posts: 12,313
    I'm inthescottishmafia.

    Default

    2x4 is cheap and sounds good. The 4x10 is considerably more expensive but sounds considerably better. Take your pick. :-)
    There are times when you canít do the sensible thing, when you canít act like a responsible adult at all; you just have to do whatever insane thing comes into your head. When bad people do it they end up murderers, when good people do it they end up heroes, and when the rest of us do it we end up looking like total idiots. But whenís that ever stopped us?

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