Universal Subwoofers

Universal Semi Truck Subwoofers
Please Note:
There are no vehicle specific subwoofers available for your 1991 Mack Midliner Series. Please view our selection of universal fit products below.
  • Atrend® - 10" 1-Hole Forward-Firing Ported Subwoofer Box
    Atrend® - 10" 1-Hole Forward-Firing Ported Subwoofer Box
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    # 4249008377
    Universal 10" 1-Hole Forward-Firing Ported Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset dados. Atrend...
    Silver spring loaded terminal cupsPremium carpeted finish
    $68.37 - $94.12
    Availability Varies - Depends on Product Options
  • Atrend® - 10" 2-Hole Forward-Firing Sealed Subwoofer Enclosure
    Atrend® - 10" 2-Hole Forward-Firing Sealed Subwoofer Enclosure (A202-10CP19)
    0
    # mpn4738329580
    Universal 10" 2-Hole Forward-Firing Sealed Subwoofer Enclosure by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset dados....
    Under Seat ApplicationPremium Carpet Finish
    $162.60
    In Stock - Ships within 24 hrs
  • Atrend® - 12" 2-Hole Forward-Firing Ported Subwoofer Box
    Atrend® - 12" 2-Hole Forward-Firing Ported Subwoofer Box
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    # 4249008304
    Universal 12" 2-Hole Forward-Firing Ported Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset dados. Atrend...
    Will help you change the oil quickly and efficientlyUser-friendly design ensures easy and secure use
    $101.60 - $138.45
    Availability Varies - Depends on Product Options
  • Atrend® - 12" 2-Hole Upward-Firing Sealed Subwoofer Enclosure
    Atrend® - 12" 2-Hole Upward-Firing Sealed Subwoofer Enclosure (A202-12CP19)
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    # mpn4738329463
    Universal 12" 2-Hole Upward-Firing Sealed Subwoofer Enclosure by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset dados....
    Under Seat ApplicationPremium Carpet Finish
    $174.02
    In Stock - Ships within 24 hrs
  • Atrend® - BBox Series 10" 1-Hole Forward-Firing Sealed Subwoofer Box
    Atrend® - BBox Series 10" 1-Hole Forward-Firing Sealed Subwoofer Box (E10ST)
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    # mpn1757937
    Universal BBox Series 10" 1-Hole Forward-Firing Sealed Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset...
    Wedge Shape Enclosure is ideal for tight room applications such as behind or under the seat on pickup trucks and SUV’s1" High Grade MDF Front Baffle for Ultimate structural rigidity and no-flex construction
    $50.79
    In Stock - Ships in 24 to 48 hrs
  • Atrend® - BBox Series 10" 2-Hole Forward-Firing Ported Shared Subwoofer Box
    Atrend® - BBox Series 10" 2-Hole Forward-Firing Ported Shared Subwoofer Box (E10DSV)
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    # mpn1757933
    Universal BBox Series 10" 2-Hole Forward-Firing Ported Shared Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full...
    Pro Tuned 10" Dual Vented (shared air space) subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for high power or sound quality subwoofers1" High-Grade MDF Front Baffle for Ultimate structural rigidity and no-flex construction
    $112.14
    In Stock - Ships within 24 hrs
  • Atrend® - BBox Series 15" 1-Hole Forward-Firing Sealed Subwoofer Box
    Atrend® - BBox Series 15" 1-Hole Forward-Firing Sealed Subwoofer Box (E15S)
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    # mpn1757950
    Universal BBox Series 15" 1-Hole Forward-Firing Sealed Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset...
    Pro Tuned 15" Single sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofers1" High-Grade MDF Front Baffle for Ultimate structural rigidity and no-flex construction
    $71.54
    In Stock - Ships in 24 to 48 hrs
  • Atrend® - BBox Series 8" 2-Hole Forward-Firing Ported Subwoofer Box with Divided Chamber
    Atrend® - BBox Series 8" 2-Hole Forward-Firing Ported Subwoofer Box with Divided Chamber (E8DV)
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    # mpn4249537220
    Universal BBox Series 8" 2-Hole Forward-Firing Ported Subwoofer Box with Divided Chamber by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered...
    Pro Tuned 8" Dual Vented (divided air space) subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for high power or sound quality subwoofers1" High-Grade MDF Front Baffle for Ultimate structural rigidity and no-flex construction
    $85.26
    In Stock - Ships within 24 hrs
  • Atrend® - Digital Designs 12" 2-Hole Forward-Firing Ported Subwoofer Enclosure
    Atrend® - Digital Designs 12" 2-Hole Forward-Firing Ported Subwoofer Enclosure (12DQVDD2)
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    # mpn4738329893
    Universal Digital Designs 12" 2-Hole Forward-Firing Ported Subwoofer Enclosure by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and...
    Full 1" MDF enclosure exclusively designed for 3500-9500-9900 SubsDD Audio Certified Enclosures
    $144.58
    In Stock - Ships in 24 to 48 hrs
  • Atrend® - Digital Designs Series 12" 2-Hole Forward-Firing Ported Subwoofer Box
    Atrend® - Digital Designs Series 12" 2-Hole Forward-Firing Ported Subwoofer Box (12DQVDD)
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    # mpn2785956059
    Universal Digital Designs Series 12" 2-Hole Forward-Firing Ported Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and...
    Exclusively designed for Redline-Hidef-PowerTuned SubsWill work with up to 2500 Series Power Tuned
    $124.29
    In Stock - Ships in 24 to 48 hrs
  • Atrend® - Dual Pro Series 10" 2-Hole Forward-Firing Ported Subwoofer Box
    Atrend® - Dual Pro Series 10" 2-Hole Forward-Firing Ported Subwoofer Box (10DQV)
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    # mpn1305837656
    Universal Dual Pro Series 10" 2-Hole Forward-Firing Ported Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full...
    SPL-Tuned 10" Dual Vented subwoofer enclosure designed for optimum bass response and low frequency reproduction3/4" High Grade MDF Construction for Ultimate structural rigidity and no-flex construction
    $89.01
    In Stock - Ships in 24 to 48 hrs
  • Atrend® - Truck Series 10" 2-Hole Forward-Firing Sealed Subwoofer Box
    Atrend® - Truck Series 10" 2-Hole Forward-Firing Sealed Subwoofer Box (E10DT)
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    # mpn4522249081
    Universal Truck Series 10" 2-Hole Forward-Firing Sealed Subwoofer Box by Atrend®. Engineered and manufactured using only the best additives throughout the production cycle. Hardwood MDF combined with true mitered corners and full inset...
    Pro Tuned 10" Dual sealed subwoofer enclosure designed for optimum bass response and low-frequency reproduction which is ideal for lower profile sound quality subwoofersWedge Shape Enclosure is ideal for tight room applications such as behind or under the seat on pickup trucks and SUV’s
    $108.97
    In Stock - Ships within 24 hrs
  • Audio Enhancers® - 15" 1-Hole Forward-Firing Sealed Subwoofer Enclosure
    Audio Enhancers® - 15" 1-Hole Forward-Firing Sealed Subwoofer Enclosure (KL15DC)
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    # mpn4660097300
    Universal 15" 1-Hole Forward-Firing Sealed Subwoofer Enclosure by Audio Enhancers®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail,...
    Single 15" subwoofer enclosureMade of 1" USA MDF
    $132.10
    In Stock - Ships within 24 hrs
  • Audio Enhancers® - L Series 15" 2-Hole Forward-Firing Ported Subwoofer Enclosure
    Audio Enhancers® - L Series 15" 2-Hole Forward-Firing Ported Subwoofer Enclosure (KPL15DC)
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    # mpn4738329883
    Universal L Series 15" 2-Hole Forward-Firing Ported Subwoofer Enclosure by Audio Enhancers®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to...
    High quality at an affordable priceExpertly made from premium materials
    $136.07
    In Stock - Ships within 24 hrs
  • DS18® - 10" 2-Hole Upward-Firing Black Sealed Subwoofer Enclosure
    DS18® - 10" 2-Hole Upward-Firing Black Sealed Subwoofer Enclosure (JMID)
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    # mpn4738342150
    Universal 10" 2-Hole Upward-Firing Black Sealed Subwoofer Enclosure by DS18®. JMID is Designed for the Jeep JK, JKU, JL Tailgate & Any Other Universal Application. This JMID Houses: 2 x 10" Midrange Speakers and 2x Bullet Tweeters.
    Durable Polyethylene (PE) BoxInjection ABS Grill with Built-In RGB Around the Grill Inside
    $389.95
    In Stock - Ships within 24 hrs
  • Nippon America® - 12" 1-Hole Forward-Firing Ported Subwoofer Tube
    Nippon America® - 12" 1-Hole Forward-Firing Ported Subwoofer Tube (TUBO12)
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    # mpn3807447969
    Universal 12" 1-Hole Forward-Firing Ported Subwoofer Tube by Nippon America®. Whether you are a fan of jazz, classical, rock, or pop music, deep basses are what you need to experience a great feeling of excitement. The subwoofers are...
    21" Long x 16" Diameter (Which Includes the Turbo Vent on one side of the tube)The Woofer Opening is for a 12" Woofer
    $85.99
    In Stock - Ships in 24 to 48 hrs
  • Nippon America® - 6-1/2" 1-Hole Forward-Firing Ported Subwoofer Tube
    Nippon America® - 6-1/2" 1-Hole Forward-Firing Ported Subwoofer Tube (TUBO65)
    0
    # mpn3807447970
    Universal 6-1/2" 1-Hole Forward-Firing Ported Subwoofer Tube by Nippon America®. Whether you are a fan of jazz, classical, rock, or pop music, deep basses are what you need to experience a great feeling of excitement. The subwoofers are...
    Charcoal Carpet CoveringTerminal Cup Connectors
    $34.99
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 10" 1-Hole Forward-Firing Ported Subwoofer Box
    QPower® - 10" 1-Hole Forward-Firing Ported Subwoofer Box
    0
    # 4249009446
    Universal 10" 1-Hole Forward-Firing Ported Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    High quality at an affordable priceExpertly made from premium materials
    $35.47 - $39.02
    Availability Varies - Depends on Product Options
  • QPower® - 10" 1-Hole Forward-Firing Sealed Subwoofer Box
    QPower® - 10" 1-Hole Forward-Firing Sealed Subwoofer Box
    0
    # 4249006812
    Universal 10" 1-Hole Forward-Firing Sealed Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    High quality at an affordable priceExpertly made from premium materials
    $30.82 - $35.41
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 10" 1-Hole Forward-Firing Sealed Subwoofer Boxes
    QPower® - 10" 1-Hole Forward-Firing Sealed Subwoofer Boxes (QTW10)
    0
    # mpn4684109099
    Universal 10" 1-Hole Forward-Firing Sealed Subwoofer Boxes by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    High quality at an affordable priceExpertly made from premium materials
    $45.06
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 10" 2-Hole Downward-Firing Sealed Subwoofer Enclosure
    QPower® - 10" 2-Hole Downward-Firing Sealed Subwoofer Enclosure (GMC102014DCAB)
    0
    # mpn4684108981
    Universal 10" 2-Hole Downward-Firing Sealed Subwoofer Enclosure by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a...
    High quality at an affordable priceExpertly made from premium materials
    $96.73
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 10" 2-Hole Forward-Firing Sealed Subwoofer Box with Tweeter Openings & Speakon Cable
    QPower® - 10" 2-Hole Forward-Firing Sealed Subwoofer Box with Tweeter Openings & Speakon Cable (CH103S)
    0
    # mpn4598769865
    Universal 10" 2-Hole Forward-Firing Sealed Subwoofer Box with Tweeter Openings & Speakon Cable by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from...
    High quality at an affordable priceExpertly made from premium materials
    $46.83
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 10" 2-Hole Forward-Firing Vented Subwoofer Box
    QPower® - 10" 2-Hole Forward-Firing Vented Subwoofer Box (BASS10V)
    0
    # mpn4684109083
    Universal 10" 2-Hole Forward-Firing Vented Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    Single 10" Subwoofer BoxForward Firing Enclosure
    $61.38
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 12" 1-Hole Forward-Firing Ported Subwoofer Box
    QPower® - 12" 1-Hole Forward-Firing Ported Subwoofer Box
    0
    # 4249008447
    Universal 12" 1-Hole Forward-Firing Ported Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    High quality at an affordable priceExpertly made from premium materials
    $33.44 - $75.10
    Availability Varies - Depends on Product Options
  • QPower® - 12" 1-Hole Forward-Firing Sealed Subwoofer Box
    QPower® - 12" 1-Hole Forward-Firing Sealed Subwoofer Box (QSMPSQ12E)
    0
    # mpn1722710
    Universal 12" 1-Hole Forward-Firing Sealed Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    Designed to ensure superior sound qualityHigh quality at an affordable price
    $30.68
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 12" 2-Hole Downward-Firing Sealed Subwoofer Enclosure
    QPower® - 12" 2-Hole Downward-Firing Sealed Subwoofer Enclosure
    0
    # 4249010363
    Universal 12" 2-Hole Downward-Firing Sealed Subwoofer Enclosure by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a...
    High quality at an affordable priceExpertly made from premium materials
    $81.97 - $115.46
    Availability Varies - Depends on Product Options
  • QPower® - 12" 2-Hole Forward-Firing Ported Subwoofer Box
    QPower® - 12" 2-Hole Forward-Firing Ported Subwoofer Box (BASS12V)
    0
    # mpn4684109104
    Universal 12" 2-Hole Forward-Firing Ported Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    Dual 10" Subwoofer EnclosureDown Firing Enclosure
    $66.11
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 12" 2-Hole Forward-Firing Sealed Subwoofer Box
    QPower® - 12" 2-Hole Forward-Firing Sealed Subwoofer Box (QHDBASS12)
    0
    # mpn4684109029
    Universal 12" 2-Hole Forward-Firing Sealed Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a strong,...
    High quality at an affordable priceExpertly made from premium materials
    $47.24
    In Stock - Ships in 24 to 48 hrs
  • QPower® - 12" 4-Hole Forward/Upward-Firing Sealed Subwoofer Box
    QPower® - 12" 4-Hole Forward/Upward-Firing Sealed Subwoofer Box (BASS124HOLET)
    0
    # mpn4684109183
    Universal 12" 4-Hole Forward/Upward-Firing Sealed Subwoofer Box by QPower®. This top-notch product by QPower will help maximize performance of your subwoofer, while offering it additional protection from external impact. Featuring a...
    High quality at an affordable priceExpertly made from premium materials
    $65.38
    In Stock - Ships in 24 to 48 hrs