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Thread: DSP active crossover

  1. #61
    Join Date: Mar 2017

    Location: London N2

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    I'm Edward.

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    Quote Originally Posted by paulf-2007 View Post
    i seem to have missed your reply until now.
    They are super X pro cx3400 2way 3 way stereo and 4 way mono and cx2310 2way and 3way , xlr inputs and outputs but I have xlr adaptors. I'm in Gravesend

    Cheers Paul. Let me keep this in mind please, in particular the cx3400. For now still playing around in the all digital domain and want to explore room correction filters next. Clearly the main advantage of the Behringers is that no computer required and a much more intuitive way of doing things.

    There was a guy at the last Scalford show (in 2017) that used 3-way Behringers in an active setup which sounded brilliant. Was that you?
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers:, Tannoy Eaton


  2. #62
    Join Date: Mar 2009

    Location: The New Forest

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    I'm Steve.

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    Was that the raving louny monster horn project at Scalford? Perhaps that was earlier though.

    I took my S2 Vitavox and Raal tweeters as my contribution.
    I had lugged all my gear there before so didn't feel like any more

    Pete who had the modded 2 Berhringers for 5way, for that setup ditched them in favour of Najda very shortly after

    Quote Originally Posted by Edwardlon View Post
    Cheers Paul. Let me keep this in mind please, in particular the cx3400. For now still playing around in the all digital domain and want to explore room correction filters next. Clearly the main advantage of the Behringers is that no computer required and a much more intuitive way of doing things.

    There was a guy at the last Scalford show (in 2017) that used 3-way Behringers in an active setup which sounded brilliant. Was that you?
    System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Digital CD spinner, Serious USB->I2S streaming, ADC / DSP XO / Pre / 4 DAC's : WAF Najda, Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.

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  3. #63
    Join Date: Mar 2017

    Location: London N2

    Posts: 820
    I'm Edward.

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    Quote Originally Posted by Magna Audio View Post
    Was that the raving louny monster horn project at Scalford? Perhaps that was earlier though.

    I took my S2 Vitavox and Raal tweeters as my contribution.
    I had lugged all my gear there before so didn't feel like any more

    Pete who had the modded 2 Berhringers for 5way, for that setup ditched them in favour of Najda very shortly after
    Yes I think it was a guy called Pete. If memory serves he was using multiple Quad amps driving some English speakers (Graham Audio?). Don't recall your multiple horn set up. Perhaps it was an earlier year.

    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers:, Tannoy Eaton


  4. #64
    Join Date: Apr 2016

    Location: souf east for work

    Posts: 957
    I'm paul.

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    Quote Originally Posted by Edwardlon View Post
    Cheers Paul. Let me keep this in mind please, in particular the cx3400. For now still playing around in the all digital domain and want to explore room correction filters next. Clearly the main advantage of the Behringers is that no computer required and a much more intuitive way of doing things.

    There was a guy at the last Scalford show (in 2017) that used 3-way Behringers in an active setup which sounded brilliant. Was that you?
    no, haven't been to scalford for a few years now. All the original horn guys, Steve included, were in the early days of scalford. I think you need to be careful with room correction, it can take the life out of the music. All this transparent accurate bollocks doesn't always work best.

    I got the behringers out earlier and they are mint, only used them briefly before getting the deqx. Still in the plastic bags in the boxes.
    Sony STR 6055 Denon DP80 Stax UA-70 Shure Ultra 500 Zu omen

    Office system, DIY CSS fullrange speakers with aurum cantus G2 ribbons Najda dsp as dac Akai AM-U02 Jvc QL-A51 direct drive turntable
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    Garage system another Sony receiver, cassette deck and full range drivers in free air


    System components are subject to change without warning and at the discretion of the owner.

  5. #65
    Join Date: Mar 2017

    Location: London N2

    Posts: 820
    I'm Edward.

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    Yes someone warned me about the dastardly impact room correction can have. Also a warning that the filters created can try correct things that speakers simply are not able to correct possibly damaging them.

    But its all enjoyment and learning for me. I ain't going to rewire the Tannoys or other better speakers I have (for now )
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers:, Tannoy Eaton


  6. #66
    Join Date: Apr 2012

    Location: London

    Posts: 355
    I'm james.

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    I agree with Paul to the extent that rather small changes in DSP can be surprisingly large in terms of presentation and enjoyment.

    Never the less the only component that doesn't leave my system is a DEQX 3.0.
    I think the best thing is to make small incremental changes, document them rigorously so you can undo/revisit them, and give any changes a few hours to settle in at first (a few days as you get closer to what you're after) .

    There's a strong tendency to tweak and fiddle non stop, it's so easy to do, but there lies madness and frustration. .

    Sent from my BLA-L09 using Tapatalk

  7. #67
    Join Date: Mar 2017

    Location: London N2

    Posts: 820
    I'm Edward.

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    Thanks James. Good advice. Certainly the presentation differs markedly even with small changes - for example crossing over at 500Hz instead of 800Hz (which is what the passive crossover is set for on the bass). The software allows one to save DSP profiles which comes in handy.

    Not had much playing around so far. Experienced a bit of distortion earlier which I need to track down. Have plenty of DSP headroom and clipping controls all turned on so I suspect a connection somewhere. Will troubleshoot by switching off all channels and working forward one at a time. All good learning.

    Did a bit of digging around Roon and all of this is doable there. In fact seems more intuitive and a big bonus is that the crossovers and slopes are graphically shown with the points and slopes 'draggable' to change values. So I may transfer over to Roon first before doing more experimenting.
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers:, Tannoy Eaton


  8. #68
    Join Date: Apr 2012

    Location: Southall, West London

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    I'm Geoff.

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    Are you experimenting with the phase relationship between the drivers at all Edward? It varies with frequency.

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