Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: Connecting 2 speakers to Pacman PCB  (Read 1184 times)

0 Members and 1 Guest are viewing this topic.

markrvp

  • ARGHHHHHHHHHHHHH!!!!!!!!!! True Genius!
  • Wiki Contributor
  • Trade Count: (+4)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 3353
  • Last login:September 14, 2020, 10:19:57 am
  • NFL Expert
Connecting 2 speakers to Pacman PCB
« on: November 11, 2005, 11:35:16 am »
This topic could go in either audio or arcade miscellaneous, so I compromised and put it here.

I have a Midway cocktail cabinet with two original speakers - a 6x9 and one that is round (I'm guessing 3" or 4").
« Last Edit: November 11, 2005, 11:37:05 am by markrvp »

Thenasty

  • Trade Count: (+17)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 4420
  • Last login:Today at 01:25:13 am
    • Thenasty's Arcademania Horizontal/Vertical monitor setup.
Re: Connecting 2 speakers to Pacman PCB
« Reply #1 on: November 11, 2005, 01:30:31 pm »
how about slicing the one wire into 2....
Thenasty's Arcademania Horizontal/Vertical setup.
http://forum.arcadecontrols.com/index.php?topic=26696.0

Free VGA Breakout Cable
http://forum.arcadecontrols.com/index.php?topic=38228.0

Ultimate All in One Coin Mech write up (Make your own)
http://forum.arcadecontrols.com/index.php?topic=19200.0

Ed_McCarron

  • Nothing worse than Picard issuing the self destruct order and the next thing you know it your apartment blows up.
  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 2404
  • Last login:June 20, 2022, 02:33:39 pm
  • Get your mind out of the gutter. THIS is a dongle.
Re: Connecting 2 speakers to Pacman PCB
« Reply #2 on: November 11, 2005, 01:36:39 pm »
When you parallel or series speakers, you create a different impedance.  Series up (2) 8 ohm speakers, you've created (electronically) a 16 ohm speaker.  Parallel em, you get a 4 ohm speaker.

Go too low on the impedance, you may hurt the amp due to increased power draw.

Go too high, you lose power.

Will 16 ohms hurt the amp?  Probably not at these power levels.  I'd try wiring them in series first. 

Heck, I don't even know what the original speakers impedance is.
But wasn't it fun to think you won the lottery, just for a second there???

markrvp

  • ARGHHHHHHHHHHHHH!!!!!!!!!! True Genius!
  • Wiki Contributor
  • Trade Count: (+4)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 3353
  • Last login:September 14, 2020, 10:19:57 am
  • NFL Expert
Re: Connecting 2 speakers to Pacman PCB
« Reply #3 on: November 11, 2005, 02:45:42 pm »
Forgive my wiring ignorance.  Could you verify that this diagram shows wiring in series?

Ed_McCarron

  • Nothing worse than Picard issuing the self destruct order and the next thing you know it your apartment blows up.
  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 2404
  • Last login:June 20, 2022, 02:33:39 pm
  • Get your mind out of the gutter. THIS is a dongle.
Re: Connecting 2 speakers to Pacman PCB
« Reply #4 on: November 11, 2005, 02:53:20 pm »
Yup, thats series.
But wasn't it fun to think you won the lottery, just for a second there???