As of a couple of days ago, there is still a Prem build scheduled for Dec, but quantity was cut. My distributor dropped from 10 available pre-order slots down to 6. I heard that the next Pro build moved to 2022.

This is intriguing. I asked my dist last week and he told me the opposite. He said he was informed all December DP Prems had moved to 2022. Hard to tell what's going on. It would be a fun roller coaster ride if $1300 wasn't riding on which side of the date line they landed on.

Yep same here. A pleasant surprise that has me scrambling to make more space. What a terribly nice problem to have.

For my audio solution, I found a DIY recipe that is about half of pinwoofer's estimates. I am using this in my DP and IMDN. The sound quality is very good. It puts out clean audio that gets as loud as I can stand without a hint of distortion, so there is plenty of power headroom. There is better control of the cross over frequencies and gain adjustments for fine tuning. This is also captured in the diy audio thread with some additional pictures.

Car amp Blaupunkt 4-ch $66.00
Power Supply Meanwell 15V 7A $16.00
Main speakers Boss 5 1/4" $30.00
Cab speaker Pyle 10" $20.00
Spike2 line out DIY $10.00
audio cables 4-way 1/8" to RCA $13.00
Speaker mounts DIY 3D printed

Total $155.00

https://www.amazon.com/gp/product/B07Q28CNSN/ref=ppx_yo_dt_b_asin_title_o03_s02
https://www.amazon.com/gp/product/B019GYON9E/ref=ppx_yo_dt_b_asin_title_o02_s00
https://www.amazon.com/gp/product/B004S52O5M/ref=ppx_yo_dt_b_asin_title_o03_s02
https://www.amazon.com/gp/product/B007JV7F4W/ref=ppx_yo_dt_b_asin_title_o05_s00
https://www.amazon.com/gp/product/B082VVSGJJ/ref=ppx_yo_dt_b_asin_title_o01_s00
https://www.amazon.com/gp/product/B0957DDZK9/ref=ppx_yo_dt_b_asin_title_o01_s00

I can see the prices have crept up a few bucks since I purchased a couple of weeks ago thanks to the new Amazon surcharges, but you get the idea. And don't get me wrong, pinwoofer provides a great product and Dan has exceptional customer service. It is an easy, straightforward way to go. I have one of his original kits in my Metallica. That said, if you have the know how and a little time, you can put together potentially a better sounding system at about half the cost.

Yeah for sure. DP has a fantastic sound package. Any option to improve the sound quality on our machines is a win for everybody. I wasn't implying one option was better than the other. I like sharing what works for me.

I can confirm these *do not* require a mount adapter ring in the spike2 cabinets (also assume the same for spike1, but haven't tried). All I did was add a dense foam ring and swapped the mounting nails to 6-32" screws and nuts. But the mounting holes lined up perfectly. Maybe you are thinking of SAM mounting? As far as buzzing and rattling from them, I have not experienced that. On my DP, I can push the volume way up and I have been pleasantly surprised how it handles the lower frequencies with the hard push from the car amp. On my IMDN, I don't think there is any buzzing from the speaker, but to be honest above a certain volume level I still have uncontrollable glass rattle. I did notice like you mentioned, they moved from metal to plastic frame and it did seem to warp slightly when I torque down the mounting screws. I mean, these things are cheap 8" drivers. My expectations are set to match that.
But I'll keep an ear out for this. Thanks for pointing it out.

Yeah it's some kind of pinball Mandela effect. I think specific orientation is the key.

PXL_20220416_014052699 (resized).jpg

You have yours set for series wiring, so it is an 8ohm load. I think you should also try single 4ohm like I have mine and see if the stock amp pushes more sound out of it. The car amp that I am using is perfectly fine at 4 and even 2 ohm (parallel dual coil config), but I don't have a need. Single channel 4ohm output is more than enough for me. Not connected in the picture is my fourth channel wired to the second coil.

Yes that is techincally correct, although I am going to guess at the low power levels we are talking, one wouldn't likely hear any degradation. In any case, for my setup I will drive both 4ohm coils by individual channels on my amp. If you are using the stock spike2 cpu board you don't have that option so you have it setup correctly.
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Back to DP content....I have had my prem for a month and man o man I really like this game. One thing I noticed that seemed like a code bug; sometimes when regeneration is lit during a multiball, and the ball save is on; a drain to the left outlane will consume the regeneration. I don't think it is every time and could possibly only be during certain multiballs and/or maybe only after add-a-ball restarts the ball save? It isn't consistent or what I would expect so thought it strange.

Another question I had, after you start 2x playfield, does additional snikt shots start the timer over again when it moves to the next multipler value?