Previously I followed
Tony's Do-It-Yourself Guide to Speaker Replacement on WPC-Era Bally/Williams Pinball Machinesto upgrade my speakers in White Water and was happy with the results.
After the speaker replacement, the previously, barely comprehensible, muffled/distorted call outs were clear and the music sounded great. The cabinet had noticeable bass and you could feel the rumbles. I received complements on the sound at the 2018 TPF.
I brought back a Whirlwind from TPF that I had purchased a few months before. The sound was awful - distorted call-outs and fuzzy music.
I followed Tony's guide again with help from the Topic,
Williams system 11: Cabinet and Backbox speaker upgrading, however the final connection to the backbox sound board was not clear. After consulting the schematics, the pictures below illustrate the wiring (using the colors in Tony's guide) and harness configuration to make Tony's guide work for System 11 games.
Final note:remove the resistor at the volume potentiometer so you can make proper volume adjustments.
https://pinside.com/pinball/forum/topic/whirlwind-club-members-only/page/43#post-4351883
For reference, I used the following components:
Whirlwind(~$50 for the list below purchased through ebay & amazon)
Right speaker BOSS Audio BRS40 50 Watt, 4 Inch (at a later point I'll install larger 6.5 inch with a routed spacer)
Left speaker BOSS Audio CH6500 200 Watt (Per Pair), 6.5 Inch
Cabinet speaker Pyramid WX65X 6.5-Inch Cone Woofer
Cross-over Nippon HC-101 4 Ohm 1 channel 400w 120 Hz Low pass Subwoofer Crossover
L-Pad Realistic (Radio Shack) 8 ohm L-Pad model 40-977
White Water(previous install)
Right speaker Kicker 40CS54 5.25" 2-Way Speaker
Left speaker Kicker 40CS54 5.25" 2-Way Speaker
Cabinet speaker Pyramid WX65X 6.5-Inch Cone Woofer
Cross-over QTX 900.582 120Hz Crossover Frequency 400W Passive 4 Ohms Subwoofer Filters
L-Pad Realistic (Radio Shack) 8 ohm L-Pad model 40-977
Good luck with your upgrade. It is well worth the time and effort.
Ontario, CA
