This is great! I did pull all the knobs & faders off of my unit when I wanted to see what's up with the record buttons (2 or 3 of them did not have a click and it was bothering me that much), but I would not recommend that to anyone 😅the knobs are very tight and hard to pull off. As it turned out, those record buttons are very funky, there is a microswitch on the board, then a long, cone shaped plastic piece, then a plastic end-cap that can be seen from the top. The end cap can be popped off from the outside, then I used my screwdriver to jam in the cone shaped plastic, pulled it off, rotated 180 degrees then put it back. Now all of them have the same clicky feel as they should. The other thing I did was, because I've heard these units tend to have a power switch issue where it randomly stops powering on, I soldered the power switches two legs together on the motherboard with a very small wire. (Someone had an idea that this issue might be because a loose connection of the power switch to the motherboard, and that connection did not seem to be very stable, so that might be the case). I will need this mixer in live situations and I wanted to get rid of this issue where it might stop working when everything depends on it. After all this, I'm still very satisfied with the Model 12. These things are much easier (for me at least) to bypass than for example, my old M-Audio interface which had USB driver issues, passing some digital noise and popping to the PC from time to time, reinstalling the driver every wheek when this occured, and its driver crashing my Windows PC from time to time. Or when I've seen a live broadcast where they used an Allen & Heath CQ mixer, which had the same USB driver-related popping and intermittent noise issue. Being a 3-day live event, they were only able to solve it for the second day. And the Model 12 just works fine.

When the model 12 receives audio signals from the computer via usb do the individual channels have separate adc? Are the eqs and compressor on the 12 digital or analog? Thanks

"BluetoothT" 😂😂

The stones on you .. kudos 👍

Hi Sean, this was awesome and very inspiring. I have a few questions for you, though, if you can spare the time: 1. how hard would it be to add inserts to channels 3 through 6? I realize there's little space between the mic/line inputs and the click/footswitch/midi section, but do you think it could be done? That back section would look pretty horrible, but I guess having hardware inserts on every mono channel would be pretty awesome. 2. do you know if the hardware inserts are usable while mixing? I'm having trouble getting signal to mine at the mixing stage. Comp, eq and fx work fine, but the inserts seem to be dormant during mixing. I wonder if that's so or if it's a problem with my unit. 3. do you know if the pre-mod return method to one stereo channel lets you affect the effect with its channel strip's eq and compression? 4. regarding your mod, your return is stereo, correct? If you were to plug a mono reverb (for instance) into it, would the connection assume a mono return and sound ok, or would it sound slightly panned/impaired? 5. did you happen to see what the built-in fx are? I think it's a Belton brick, but haven't opened mine yet. Thanks again for the video!

Rather use a channel and use the eq , nice mod still

Got a Schematic?

Have you tried using it to get master bus compression? I think it should work, as well as external master fx. I’m gonna do this while I’m repairing the power switch. Great video, I wish KZbinr recommended it to me soon. I’ve looked over that block diagram a million times and never noticed the Bluetootht typo lol

Let Tascam know.

Cac Bluetooth still work? Can a switch between the 2 modes be applied?

This awesome, my older mackie has a main out insert that I’ve found is great for adding compression, eq, bbe, things of that sort to the main mix. Was wondering how to best connect those things to the tascam. Should I just run the outs straight through these things to speakers? I love this fx return mod, I may have to give it a go.

That is super cool, nice sleuthing and awesome mod.

Way to go! Clever.

Hey this looks very promising. Does this plugin work with Unity 2022.3.xx and URP? Is usable for let’s say a forest fire ?

You, sir, are a god-tier Model 12 user

Great job! Very interesting! You’re a daring guy!

Great video. Definitely interesting. Put more videos out!

Nicely done

Any you could post the components needed to make this mod?

TISINO 1/4 TRS to Dual 1/4 TS Y-Cable These Insert cables are used for creating a real-time effects loop by connecting a channel insert on an audio mixing board to an external effects processor with 1/4" unbalanced connections. Connect the TRS plug into the "insert" jack of your mixing board. The tip of the jack is a send (sending a mono signal to an external effects professor) and the ring is the return (returning a mono signal from the external effects processor back into the mixing board). This cable can also be used to split an unbalanced stereo signal into two unbalanced mono signals or to combine two mono signals into a single stereo signal.

This is really cool.

Hey just a heads up- I made a slight revision to my circuit- I changed the 22k mixing resistor to 470 ohms and changed the capacitor to a 47uf bipolar capacitor. I did this because I felt that the high end was a bit lacking and the circuit probably wanted to be driven by a lower impedance source. And it worked- audio quality improved as I hoped. Also: I don’t think I went into why I put the capacitor into the circuit in the first place. It’s because the data inputs are biased above ground, at about .74 volts, so you need the capacitor to avoid messing up the bias. I’ll put up an addendum video about this later if I have time. Thanks for watching!

Super cool. Ive been missing having a return. Thanks

NICE! I'm about to upgrade my DP-24 to one of these, and I am DEF doing this mod! I still can't wrap my brain around how it works... even without the mod. So there are 2 AUX sends, and one goes out into your reverb... then where do you plug the output without your mod? another channel? if so, what is the use for the AUX knobs? I'm not thinking 3 dimensionally, I know.. but I will be back with some questions on the mod when my mixer arrives! like.. if you were to add a volume pot, how would you do it amd what value and such?

I’m trying out the radial extc stereo effects reamper - trying to take the sub signal and re-record them to 9/10 or 7/8. Just got it today so I have no idea if it works. Good thinking outside the box. I have had zero success with the y insert cable. No idea what I was doing wrong

Well done. Amazing how one's will to get things to work, will find the way. One thing I would add in the future is a small stereo input level knob, replacing the 220K. You can set the Bluetooth to CH9/10 to monitor the incoming levels on the screen, just to be sure, and then switch back to the main bus.

wow remarkable undertaking! Your music is fantastic as well. Cheers!

Fantastic!

Nice work! Did you think about adding a pot to control the amount of signal? Also, when you were getting ready to drill the hole, I was thinking a glob of modeling clay or silly putty on the inside would catch the metal shavings. Just a thought. Thanks!

Excellent mod, Great video. Would be interetsed to see vids on your home built FX pedals.