@hunter audio what Acrylic boards are you working with?
I would love to have separate EQ (left & right) for my BDM3P by Wondom, but I realized it's probably not possible at all.
I would love to have separate EQ (left & right) for my BDM3P by Wondom, but I realized it's probably not possible at all.
Hi I am using the below -
https://www.arylic.com/products/up2...yvf_hw6bW0L3KvOZBrlvgYLFixCxT302BAJ2q5iLgozQt
https://www.arylic.com/products/up2...yvf_hw6bW0L3KvOZBrlvgYLFixCxT302BAJ2q5iLgozQt
I thought it might be helpful to share some of my experience using a variety of the Wondom / Dayton Audio / Sure DIY boards and those from Arylic on a number of active speaker builds.
The Wondom boards were a useful starting point for me. The ADAU1701 DSP gave sufficient capability to use them in 2 way active speaker builds. Programming with Sigma Studio took a little learning but there's plenty of resources available to help. I was pleased with the results though I found the amplifiers lacked power and all had high frequency electronic switching noise and constant hiss which was clearly audible on any builds with a half decent tweeter.
I progressed onto the Arylic boards as I liked the connectivity, Wondom were Bluetooth only and the Arylic added WiFi, connectivity to streaming services, a companion app to control as well as IR remote control. Again I used a variety their boards in various projects. Programming the DSP is easier as it's done through the ACP Workbench software but is limited once you move beyond using it for EQ and simple crossovers. However again I found the amplifiers let them down. In my experience better than the Wondom but still with audible and distracting hiss.
My next step was to look for a better amplifier so I paired the Sure ADAU1701 Kernal board front end with a 2 ch amplifier board with PFFB from 3EAudio. The amplifier is excellent. I got this working well but that's when I hit the limitations of the ADAU1701 and found I wasn't able to do what I wanted due to lack of DSP resources. I started to think about designing an ADAU1452 board and that's when I came across the 3x100W amplifier board with ADAU1452 DSP from @uriy-ch which has worked really well and provides for a fully digital signal path.
I paired it with the Arylic PRO4 front end, feeding SPDIF into the amplifier. The Arylic gives me the wireless streaming options and remote control I wanted and the amplifier from @uriy-ch gives me the sound quality I'm after. I've since built a pair of near field studio monitors - without the Arylic front end, using Optical SPDIF input. Not only is there ZERO audible high frequency noise, in this configuration the dynamics throughout are astounding.
Currently I'm considering that most of the functionality I need from the Arylic board comes from the Link play module it uses and so I'm considering using only that with accompanying circuitry. This pretty much brings me to the same place @hunter audio in post #10 of this thread.
The Wondom boards were a useful starting point for me. The ADAU1701 DSP gave sufficient capability to use them in 2 way active speaker builds. Programming with Sigma Studio took a little learning but there's plenty of resources available to help. I was pleased with the results though I found the amplifiers lacked power and all had high frequency electronic switching noise and constant hiss which was clearly audible on any builds with a half decent tweeter.
I progressed onto the Arylic boards as I liked the connectivity, Wondom were Bluetooth only and the Arylic added WiFi, connectivity to streaming services, a companion app to control as well as IR remote control. Again I used a variety their boards in various projects. Programming the DSP is easier as it's done through the ACP Workbench software but is limited once you move beyond using it for EQ and simple crossovers. However again I found the amplifiers let them down. In my experience better than the Wondom but still with audible and distracting hiss.
My next step was to look for a better amplifier so I paired the Sure ADAU1701 Kernal board front end with a 2 ch amplifier board with PFFB from 3EAudio. The amplifier is excellent. I got this working well but that's when I hit the limitations of the ADAU1701 and found I wasn't able to do what I wanted due to lack of DSP resources. I started to think about designing an ADAU1452 board and that's when I came across the 3x100W amplifier board with ADAU1452 DSP from @uriy-ch which has worked really well and provides for a fully digital signal path.
I paired it with the Arylic PRO4 front end, feeding SPDIF into the amplifier. The Arylic gives me the wireless streaming options and remote control I wanted and the amplifier from @uriy-ch gives me the sound quality I'm after. I've since built a pair of near field studio monitors - without the Arylic front end, using Optical SPDIF input. Not only is there ZERO audible high frequency noise, in this configuration the dynamics throughout are astounding.
Currently I'm considering that most of the functionality I need from the Arylic board comes from the Link play module it uses and so I'm considering using only that with accompanying circuitry. This pretty much brings me to the same place @hunter audio in post #10 of this thread.
Hi, thanks for a detailed feedback, its good to know the Arylic matched with the ADAU and the @URI-ch input.
Can you please post some pictures as to how you linked the boards and the link of the arylic pcb you used (I am using mini 3).
@URI-ch has posted a lot of good measurements, how would you compare the nature of sound of the Mids n highs w.r.t. a Sansui amp using a 2SC MT-200 package output trannys
Hi @hunter audio, Below are the connections to Arylic Pro front end, the Mini will be similar but you should check the pinouts in the manual here. You may need to select I2S / SPDIF using ACPWorkbench, but I suspect they come shipped with SPDIF as standard. There isn't sufficient current available from the amplifier board 5V to drive the Arylic hence the buck convertor. I used this one here. The amp comes with a 10 pin ribbon cable, the Arylic with a 7 pin PH2.0 cable so I simply wired the two together as shown. I used this 27V / 350W power supply but if you don't need high levels a 20V laptop style power supply is fine.
Sorry - I don't have any experience with the Sansui amp
Sorry - I don't have any experience with the Sansui amp
I have not heard how Sansui sounds, but in general the sound at the output of my DAC is not much different from the sound on the TРA3255, it should be understood that the perception of sound from the amplifier is very much dependent on the frequency response of the speakers and their consistency with the room. My DAC reveals itself fully only when the frequency response of the speakers is successfully corrected taking into account the influence of the room. Therefore, if you do not intend to apply the frequency response correction of the speakers using a microphone, then you will not get any advantage from my DAC compared to the TРA3255.
Hi @phreepie
Thanks for detailed connections diagram and explanation. I think this will be a way upgraded system easily executable than the conventional mini dsp way...n fully wireless + stable wireless connection app control & streaming convenience + remote. Not to mention the clarity and flexibility of a full DSP 3 way active system.
Thanks for detailed connections diagram and explanation. I think this will be a way upgraded system easily executable than the conventional mini dsp way...n fully wireless + stable wireless connection app control & streaming convenience + remote. Not to mention the clarity and flexibility of a full DSP 3 way active system.
This is vintage audio - diamond differential input, high slew rate amps - one of the finest and most treasured by those that yet have them. You can check out the detailing of circuit design & its implementation here
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