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PinWoofer 4in 8in Stern Spike-1, SAM and Whitestar Upgraded Speaker Pack

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128.00 Ounces

PinWooferTM – Stern Spike-1, SAM and Whitestar Upgraded Speaker Pack

Adding our upgraded speakers to your existing PinWoofer system is a great way to improve your audio experience.

Note that upgrading speakers alone unlocks only about 25% of the potential of your title. To unlock the full potential, we recommend a full PinWoofer kit:

Speaker and Amplifier Kits - PinWoofer

Cabinet Woofer:

The PinWoofer Dual Voice Coil Cabinet Speaker is the premiere driver for your pinball machine.

Get more bass intensity from your PinWoofer Amplifier with this dual voice-coil, high sensitivity, 2Ω driver.

The cabinet speaker mounting ring is required so that the woofer does not contact the cabinet floor at high volume intensity. If you have the MDF version of the cabinet speaker mounting ring (shipped prior to January 2022), our new injection molded ring is more rigid and provides a tighter coupling to the enclosure.

If you have already installed a Metallica or The Walking Dead Offset Ring, stay with what you have now by removing the cabinet speaker mounting ring.

If you have the 12in ACDC cabinet speaker, do not select this speaker upgrade. Instead, stick with your current cabinet speaker and upgrade only the backbox speakers at the below link:

PinWoofer 4in Backbox Speaker Upgrade

Backbox Speakers:

In almost all cases, aftermarket or “upgraded” multi-axial speakers are designed for automotive or marine applications. They employ rigid tweeter materials such as PEI or Mylar. These materials are extremely efficient on purpose so that they are audible over the ambient noise of a car or boat. A consequence of this efficiency is that they overpower the sound field in other applications (i.e., in a game room environment) and present harsh or “grinding” overtones that severely degrade the quality of reproduction and the sound field.

This is also true of other aftermarket pinball speaker “upgrades” which are no better than a typical automotive speaker.

Much of what separates the PinWoofer backbox speaker from others is the oversized Silk Dome Tweeter which balances reproduction of the sound field over a larger frequency domain compared to rigid tweeters. Our Silk Tweeter element has a much smoother tonal characteristic compared to other cost saving materials such as PEI or Mylar. You can really hear the difference!


Installation is simple, requiring only a few basic hand tools.


Includes i) two 43in strips of playfield glass tape, ii) one Dual Voice Coil Cabinet Speaker wired for 2Ω, iii) Cabinet Mounting Ring (with hardware), iv) one pair of 4in PW-4 backbox speakers, v) one pair of 4in backbox speaker mounting rings and required mounting hardware.

 Compatible mounting with Stern Spike-1, SAM and Whitestar 4in Coaxial Backbox Speaker Pair. Please verify your mounting requirements prior to ordering.

Backbox Mounting Instructions:

PinWoofer 4in Backbox Mounting Instructions

Backbox Mounting Video - Metal Speaker Panel:


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.