Blast City / Astro City / Astro City 2 / NNC - Restorations

[Segafan1985]

I bought one of these for Tekken 1, 2, etc.

It says CN3 is for Right Channel Stereo ->

CN3 is for stereo right channel, it requires a JST NH Series 2 pin connector.

1. Speaker R +

2. Speaker R -

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My question is if Left Channel Stereo is coming off of JAMMA edge and Right Channel Stereo is coming off of this JNX adapter.....how the heck do I get that wired up to my speakers in like an Astro City or Astro City 2 cab? I definitely want stereo and not Mono sound for Tekken boards.

I wanted to use an amplifier that has RCA inputs but am confused on the whole line level, speaker level, and how to make that work.

Got the JNX adapter working with Tekken Tag. Need to test the other games. Hell yeah! I can kick ppl now!

 

[Segafan1985]

I guess I need a JNX Atlas adapter. I think that in conjunction with the adapter above + an adapter to go from high level to low level would work.

 

[Hackcell]

What is the best way to add a subwoofer to my Blast City in terms of wiring? Wish everything just had RCA out but no such luck on VF3.

Idk if any of these?

838-11651 [Low pass amp]

838-10141 [Audio mixer board - with woofer]

838-13616 [AUDIO POWER AMP 2CH (NAOMI)]

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I usually add an AYAMI amp for arcade systems that have RCA out and just power it with a normal wall plug but not sure how to power Sega Amps or how the inputs \ connectors into the amp would work.

Due to space constraints inside a Blast, and if you want to discard the amp inside the PSU, I'd go after the 838-13616, which is a NUC audio amp.

 

[Segafan1985]

Due to space constraints inside a Blast, and if you want to discard the amp inside the PSU, I'd go after the 838-13616, which is a NUC audio amp.

@Hackcell how would I power it? I see there is a 4 pin connector (CN3) . I have this same amp in my NNC I believe and I really like how it has the RCA in and sub out on it.

I found this online -> https://electronics.stackexchange.com/questions/410895/what-is-this-connector

 

[Hackcell]

@Hackcell how would I power it? I see there is a 4 pin connector (CN3) . I have this same amp in my NNC I believe and I really like how it has the RCA in and sub out on it.

I found this online -> https://electronics.stackexchange.com/questions/410895/what-is-this-connector

You'll need a 560-5407 trafo.

 

[Ringo]

I don't know what the end goal is for your cabinets, but with the amount of adapters you will end up requiring to play Dreamcast with added subwoofers etc, it may be better to buy the tools to make custom looms yourself. It's not that hard to make them if you have good tools, correct pins/housings and the schematics at hand. It's somewhat satisfying to make looms for myself, but I wouldn't want to do it everyday though!

I've inherited old looms and have also parted out a few cabs, and this is one of the looms I use to get sound out from one of my Model 3 stacks in combination with the original mixers to play games like SpikeOut, VF3 doesn't need any mixers though. I think the below loom is from a Daytona USA cab, but I may have swapped around the pins in the connector housing, I can't remember exactly as it's been a long time. The RCA looms may also be in Sega Rally cabinets too.

If I want very loud I just use the RCA loom in combination with a headphone amp and some decent headphones.