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PinWoofer JJP DIY Amplifier

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60.00 Ounces
Minimum Purchase:
1 unit
Maximum Purchase:
1 unit

PinWooferTM – DIY – “Do It Yourself”

This product is intended for those who want to customize their pinball audio system, have the confidence and technical know-how to do so, but want to avoid the hassle and disappointment of trying to kludge everything together separately, spending the time to do so and likely ending up with a poor result.

Do the math and factor in your time and risk of a poor outcome and you’ll see that this is a very sensible alternative to pure “DIY”!

If you are confused or unsure if this is the right pinball audio system for you, it is not.  If this is the case, please select a full PinWooferTM Super Kit using the “Search” option in the upper right-hand corner of the web page.  A distinct advantage of the full PinWooferTM Super Kit is that technical support is offered during the warranty period for the original target machine.  The PinWooferTM Super Kit is supported by highly detailed installation videos, electronic instructions in addition to a well-developed blog that has tips and tricks to get your machine sounding great.

The PinWooferTM DIY system is minimally supported outside of the warranty terms, and while instructions for connection are provided, technical support is not readily included.  The DIY is brutally simple and if you have a problem, please take the time required to diagnose what might be wrong with your setup before contacting us.

JJP compatible titles include: 1) GNR, 2) POTC, 3) WWTCF, 4) WoZ Yellow Brick Road Edition and 5) Toy Story.


• Bass Cutoff Frequency
• Bass Level
• Backbox Level
• Treble
• Master Volume
• Line Output Mini-Jack:

o Studio / Pro Level +4dBu
o Drive an External Subwoofer, Amplifier or Streaming Line

• The DIY Amplifier works in Late Jersey Jack Pinball Platforms and Utilizes the Existing / Factory Speaker Wiring Harnesses; the DIY Amplifier Speaker Outputs Match these Connections Exactly
• Mini-Jack Input

The heart of the PinWooferTM DIY system are the custom amplifier and power board.  The amplifier and power board (the most challenging items to get right) form the basis for this product and are always included.  It is also largely plug and play using the factory speaker wire harnesses and audio source.  A custom power cable is also provided.

For Jersey Jack Pinball (JJP) titles, the amplifier hole pattern matches the backbox mounting locations for the factory amplifier card.  The PinWooferTM DIY Amplifier replaces the factory amplifier.  Optionally select upgraded backbox tweeters (keep the backbox mid-range speakers in play).  TWEETERS ARE VITAL FOR A GOOD OUTCOME!  Optionally select a cabinet speaker and mounting ring.

Select your title, trim and store options as you progress, and we’ll provide the correct gear.

2.1 MAX Amplification - 50Wx50Wx100W Final Stage*

Optionally select other items as listed to support your install.

Optional Line Trimmer:

  • It is strongly recommended that you purchase the PinWoofer Line Trimmer if you use an external subwoofer, streaming device, etc. and source it from the Amplifier’s Output jack. (You can alternately source the signal to an external sub from the line out board provided, which does not require a Line Trimmer). The Line Trimmer allows you to reduce the amplifier output signal level and can prevent the inputs of your external device from seeing an overload condition. Option includes i) one Line Trimmer Unit, ii) one 3ft, 3.5mm TRS Male to 3.5mm TRS Male Stereo Cable, iii) one 12ft 3.5mm TRS Male to RCA Male Stereo Cable and iv) Adhesive Double Sticky Mounting Pad.

JJP DIY Amp Instructions

* Average maximum amplifier power in application can be approximated by taking the product of the MAX power rating per channel and 1/(√2*1.5) and average maximum RMS Power is determined by a further 1.5 divisor.

pinwoofer WARRANTY COVERAGE PinWoofer products are warranted to be free of all defects in material and workmanship for 90 days from the date of purchase from an authorized PinWoofer dealer. This warranty and all rights provided are limited to the original owner and are non-transferable. Responsibility is limited to replacement or repair as set forth in this warranty statement. Should a product require warranty service during this period, PinWoofer will repair or replace without charge, any part or product proving defective in material or workmanship. All warranty repairs and service must be performed by an authorized PinWoofer technician or service facility. The use of non-authorized repair services renders this warranty null and void, and any charges relating to non-authorized repair are the responsibility of the product owner. All expenses (excluding shipping costs) related to replacing or repairing a defective part or product under this warranty shall be assumed by PinWoofer. PinWoofer reserves the right to replace defective product with a new or factory reconditioned unit. WARRANTY EXCLUSIONS 1.This warranty does not cover product failure or damage resulting from misuse, abuse, neglect, accidents, alterations, standard environmental deterioration, natural disasters, or improper use and/or installation or not following the installation instructions. “Blown” or damaged speakers (and tweeters) are a result of misuse and are not covered by this warranty. 2.This warranty does not cover cosmetic damage due to misuse or neglect. This includes paint damage, scratches, cracks or other superficial marks related to improper use. 3.Failures arising from attempted servicing of a non-authorized PinWoofer repair facility or technician are excluded from this warranty. 4.If the amplifier enclosure has been opened (or attempted to be opened) by a non-authorized PinWoofer technician any warranty is null and void. 5.If the fastener sealing decals on the amplifier have been removed, attempted to be removed or are damaged in a way that indicates the enclosure were opened or attempted to be opened, any warranty is null and void. 6.The use, addition or integration of any aftermarket peripheral device, enclosure, attachment, mounting device, modification (aka “mod”) or other accessory or enhancement, or any item physically or mechanically attached to or electrically interacting with any part of the PinWoofer system, that is not produced, validated, verified, approved and supplied by PinWoofer or a PinWoofer authorized dealer, renders this warranty null and void. Violation of these restriction will be confirmed and determined by PinWoofer. LIMITATION OF DAMAGES In no event shall PinWoofer be liable for consequential damages for breach of this warranty including installation charges, excessive shipping expenses, property loss or other incidental loss. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to the buyer. HOW TO OBTAIN WARRANTY SERVICE To obtain services under this warranty, the buyer shall contact PinWoofer at email address to obtain a Return Merchandise Authorization number (RMA#) and a return shipping address. The buyer must carefully pack the warranted product along with a copy of the original purchase receipt, the Return Merchandise Authorization number, and a description to the repair facility you are directed to ship the return to. Warranty assistance can be obtained by calling 208-855-0346, M-F, 8am to 5pm Mountain Time. NOTICE TO BUYER This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

1 Review Hide Reviews Show Reviews

  • 5
    JJP Willy Wonka

    Posted by Justin Hillyer on Jul 14th 2022

    As many people have complained, the sound on the Willy Wonka machine is poor. I have had issues with this since I first received the machine years ago. After hearing about Pinwoofer, I reached out to Dan who was more than helpful to go over the choices with me. I decided on this DIY kit as I didnt want to take up much room by the coin box and it was a bit less expensive.... I was very skeptical... And let me tell you, WOW! The sound on my Wonka machine has come to life. I was shocked at how much more mid and bass tones were now there. I am hearing sounds that I have never heard before. The no longer have any scratchy sounds from the tweeters (did the tweeter upgrade). Just everything sounds sooo much better! One thing to note is that it takes a little bit of dialing in. What I did, was started with the bass dials. The amp needs to draw a lot of power to move the cabinet sub, so that should be on the higher side. Then you can play with the bass frequency as you like. From there, I was able to dial in the backbox volume. I found that if the backbox volume was too high, it took away from the cabinet sub, so this needed to be balanced. Once that as set, I was then able to dial in the treble volume. One thing to mention with the DIY kit is that since it sits in the backbox, it is not as easy to get to when making changes, compared to the other kits that sit closer to the coin door.. All said and done, I am extremely happy that I purchased this upgrade. Anyone who is not happy with the sound on their Wonka machine should look right here. It sounds so much better with so much more depth, I really don't even know if I need an external sub anymore. One last thing to mention, the outstanding service by Pinwoofer. They are there to help you every step of the way if you choose. That is something that you dont see often and they are top notch. Great job Pinwoofer!! Just cant say enough about this upgrade.