Hey peeps,
i have a rokit 8 g2 monitor where something with the amp is broken. I want to replace all the inner parts with a class d and a dsp, as I simply want to start playing around with speakers, amps and dsps. So not interested in fixing the original pcb.
The monitor has 2 drivers:
(Source: http://www.dancetech.com/item.cfm?threadid=4483&lang=0)
My idea on how to make them work again is to have following audio chain:
Now is the big question what kind of class d to get, i like the idea of getting china class d and play around with them.
For the 20w i found this class d from adafruit: https://www.berrybase.de/adafruit-stereo-20w-class-d-audio-verst-228-rker-max9744
But it looks crazily tiny and not sure if it really can handle 20w.
For the 70w woofer I found TPA3116D2 based 100W class d modules. It has a variable resistor on it with which i could probably turn down the volume
until i reach ~70W.
What do you think? Should that work? Any ideas? Problems i'm overseeing?
Thanks,
obsoleszenz
i have a rokit 8 g2 monitor where something with the amp is broken. I want to replace all the inner parts with a class d and a dsp, as I simply want to start playing around with speakers, amps and dsps. So not interested in fixing the original pcb.
The monitor has 2 drivers:
- 1x Tweeter TWTK00012 with 4ohm and supposedly handles 20W
- 1x Woofer WOFK80156 with 4ohm and supposedly handles 70W
(Source: http://www.dancetech.com/item.cfm?threadid=4483&lang=0)
My idea on how to make them work again is to have following audio chain:
Code:
Audio Input -> t.racks DSP 4x4 [as crossover/gain/eq] --- > woofer signal --> class d 70w --> woofer
\-- > tweeter signal --> class d 20w --> tweeterNow is the big question what kind of class d to get, i like the idea of getting china class d and play around with them.
For the 20w i found this class d from adafruit: https://www.berrybase.de/adafruit-stereo-20w-class-d-audio-verst-228-rker-max9744
But it looks crazily tiny and not sure if it really can handle 20w.
For the 70w woofer I found TPA3116D2 based 100W class d modules. It has a variable resistor on it with which i could probably turn down the volume
until i reach ~70W.
What do you think? Should that work? Any ideas? Problems i'm overseeing?
Thanks,
obsoleszenz
Last edited:
If available, post the original schematic.
Not to rebuild it, but because typically modern active monitors have a ton of little peaks and dips here and there all over the place plus some more serious EQ at the very low end to make them ruler flat.
Replacing it with an flat amp WILL work, but sound different and having a DSP means you STILL need to know what and where to correct.
Not to rebuild it, but because typically modern active monitors have a ton of little peaks and dips here and there all over the place plus some more serious EQ at the very low end to make them ruler flat.
Replacing it with an flat amp WILL work, but sound different and having a DSP means you STILL need to know what and where to correct.
Sadly there's no original schematic, of course i can take a picture of the pcb, not sure if that helps without figuring out the values of the ics/resistors/capacitors.
Fixing the eq curve will be part of the fun for me, a friend has a microphone for measuring the frequencies. I don't need to rebuild the original eq,
I want to come up with something i like. This project is meant to learn and dive in to the world of audio/speaker building.
Thank you for your reply 🙂
