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Products by PinWoofer

PinWoofer Coin Door Unit

$ 150.00 USD

Upgrade your game controls with the PinWoofer Coin Door Unit. This device provides external access to critical controls on your coin door including sound, volume and the service menu. 

The CDU provides the following features:

  • Machine and Headphone Volume Control
  • 3.5mm Headphone Jack
  • External Subwoofer Bass Cutoff Frequency Control
  • External Subwoofer Volume Control
  • External Service Menu Buttons

Tools Required i) Cable tie cutters or scissors, 11/32 Nut Driver.

Installation time is less than one hour, subsequent installs take about 20 minutes.

Power is supplied using a provided connector board and power cable.

The CDU Backbox Module interfaces to the Spike-2 CPU node board and conveys necessary signals to the Coin Door Module.

Master & Headphone Volume controls both the machine volume (with or without a PinWoofer Amplifier Kit), and headphone volume. (Menu configurable.)

Automatic speaker cut when headphones are plugged. (Menu configurable.)

A feature found only with PinWoofer – externalized Service Menu Buttons! This allows access to and adjustment of anything in the service menu without opening the coin door. (There is a concealed disable switch found on the back of the Coin Door Module if you would like to temporarily or permanently disable the external service menu buttons.)

Features an integrated PinWoofer BBU (Bass Boost Unit) that allows for boost of the signal sent to your externally powered subwoofer. The result is an improvement in bass signal and bass quality. The BBU roll-off is quite steep (~35dB / decade above ωc) so the result is filtering of unwanted high bass that might otherwise rob power from the bass spectrum and reduce quality. It is not surprising that the result is a "purification" so to speak, of the bass signal provided to the external and less energy is wasted on high bass.

Maximum boost ~8dB (~2.5x).

Cutoff frequency is adjustable ~50-173Hz @ -3dB ωc.

Frequency roll-off ~35dB/Decade.

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Installation difficulty varies by product. Detailed installation instructions for Mezel Mods products can be found on our Support page for detailed installation instructions. Installation instructions are included in shipment for all other designers products.


Usually ship in 5-7 days from Mezel Mods via First Class USPS mail (Priority available for International customers). US domestic shipping delivery estimated between 2-5 business days. International shipping delivery via USPS First class international (tracking limited to US) or USPS Priority (full package tracking). First class International estimated between 10-14 business days however some destinations can take up to 30 days. Priority International estimated between 7-10 business days. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding or buying.


First of all, you wouldn't be looking at this page if you hadn't already purchased something- so thank you for your order! And we get it. Returns happen. Here is how we work returns and exchanges. We will:

  • Happily issue you a refund for the cost of the item (minus return shipping) if you change your mind or if you ordered the wrong item
  • Gladly exchange an item if you find it to be defective
  • Absolutely replace items damaged during shipment but PLEASE do not discard its original packaging!

In all of the above cases, please email us to initiate your return. Please include the following information in the request for return/exchange:

  1. Order name and order number
  2. Item(s) you are seeking to return
  3. In the case of damage or defect, please include a photo of the item 

Once your return is received, your refund or exchange will be processed, and a credit (if applicable) will automatically be applied to your credit card or original method of payment.

Our products are built to last however breakage of some parts can occur during gameplay. We guarantee our products against breakage due to design or workmanship.

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