Iv’e been a hobbyist speakerbuilder from germany for a few years now and i’ve wanted to share my latest project here with you today.
This was my first time ever using an Arylic product and i must say that i am really amazed of the Up2Stream AMP V4 that i’ve used in this build.
This is a fullrange speaker build in a bassreflex enclosure of 12 liters. They have an f3 of about 48 Hz which is pretty nice considering it’s such a small fullrange driver. Also i am amazed at the highs this speaker is producing, they disperse very nicely throughout the room which is rather atypical for a fullrange driver.
I used DATS V3 to measure TS-parameters, VituixCad to simulate the enclosure, and Fusion 360 to make the design (you can see a screenshot of that further below).
The enclosure is build from 16mm mdf (which is pretty expensive in these times), the front is made from black 16mm mdf and i’ve used saraifo cherry veneer. The front is finished with hardoil which has been sanded down and reapplied several times to create a matte finish. The bassreflexport is a simple piece of hdpe pipe cut to length. I’ve rounded over the outlet with a 10mm radius bit. On the inside of the enclosure there is a good amount of dampening material strategically placed behind and below the driver and port.
The backplate is also made from black mdf. Most parts have been cut with my diy cnc mill. Conviently i can make toolpaths for this directly from my fusion 360 design.
On the front of the speaker you can see a round piece of black plexiglas which is infra red transparent. behind it sits the ir reciever, which i extended from the board - as well as the rgb led on the left. On the backplate you can see the various inputs which also have been extended, mostly with cables that feature a panelmount (Usb, Micro Usb and Ethernet). Then theres Chinch connectors for analog input as well as the Speaker Out for the left speaker. Also i’ve put a mainpowerswitch and an extended wifi/rest button. The speakerfeet are solid aluminium with a rubberring on the bottom.
It was very easy to correct the speakers response with the onboard dsp. I measured the speakers response in room eq wizard with my Umik-1. Then i had room eq wizard calculate filters to flatten the response towards my desired target curve. The filters were then typed into the Main EQ in Acp Workbench. Now i took a measurement again to confirm and the response was looking great!
All in all setting up the DSP with ACPWorkbench was straightforward and pretty easy!
What i especially like about the Amp is, that i can put 6 favorites to the remote, so i dont even need to connect anything to the speaker to be able to listen music. I really like that you can change the name of the device to your liking (shows in bluetooth and wifi apps)and adjust nearly everything how you want it.
The many extensionports on the board make it easy to customise the speakers functions to only what you want and need.