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Customer Reviews

MB Quart MBQJT-SUBA-1

MB Quart MBQJT-SUBA-1 Custom underseat enclosure with two 8" subs and amplifier — fits select Jeep Gladiator vehicles

MFR # MBQJT-SUBA-1

3.0 out of 5 stars
5 reviews
View this product
Cheapest sub

William from VAN NUYS, CA on 1/31/2024

2020 Jeep Gladiator

Verified customer (What's this?)
Verified employee review (What's this?)

This box is made of thin plastic and sounds like 5gallon bucket's . Amp cheap as they come. Do not waste your money.

Pros: Fits perfectly Jeep Gladiator

Cons: Sounds like cheap plastic bass. Amp failed shortly after installation. Don't waste your money. I uninstalled box sitting in my garage. I wish people post honestly.

Crutchfield response on 1/31/2024
William, we're sorry you're having issues with your amplifier. If you purchased this product from Crutchfield, feel free to contact our Tech Support team. They can help you solve the problem or set up a return within 60 days of purchase. Lifetime tech support comes with every Crutchfield purchase.
Customer review photo

1 of 1 found this helpful

MB Quart MBQJT-SUBA-1

Crutchfield customer from Bracey, VA on 9/22/2023

2022 Jeep Gladiator

Verified customer (What's this?)
Verified employee review (What's this?)

This is the weakest little piece of crap amp they could've possibly set up with this box. It constantly clips and goes into protection mode. Save your money. Buy component subs and an empty box with the right amp.

Pros:

Cons:

Crutchfield response on 9/26/2023
We're sorry you're having issues with your sub enclosure. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. They can help you solve the problem or set up a return/exchange within 60 days of purchase. Lifetime tech support comes with every Crutchfield purchase.

3 of 3 found this helpful

100x better than a compact sub

Clark from North Vernon, IN on 9/20/2021

2020 Jeep Gladiator

Verified customer (What's this?)
Verified employee review (What's this?)

Box is perfect fit for Gladiator. Must remove speakers to bolt to floor. Amp is average. The wiring and remote bass know are my only negative. Comes with short pigtails you cut and add wire to. Seems like a missed opportunity to just include longer pigtails to make it more plug and play. The remote button has no mounting options (ie brackets etc) I guess double sided tape might work. I recommend an AudioControl LOC and bypass the GTO feature. This gives a true on/off with ignition button and the sound is far superior to some less expensive LOCs. I started with a kicker and wasn't happy with it. Crutchfield C/S was top notch there.

Pros: Fit Sound

Cons: Remote bass knob is cheap Short wire pigtails

Crutchfield response on
Customer review photo

2 of 2 found this helpful

Awesome addition. Sounds great.

Crutchfield customer from Lathrop, CA on 6/23/2021

2020 Jeep Gladiator

Verified customer (What's this?)
Verified employee review (What's this?)

Added the upgrades to the inside speakers first while I waited for the subs to arrive. Once installed I was blown away. Plug and play was awesome. Fit and finish great and the sound is amazing. Bass nob great addition and used all the time. Find myself driving around just to listen to the stereo. Wish I could drive while sleeping.

Pros: Fit and finish. Plug and play

Cons: No wiring diagrams for routing power from battery.

Crutchfield response on

4 of 4 found this helpful

MB Quart MBQJT-SUBA-1

Crutchfield customer from Kyle, TX on 6/5/2021

2021 Jeep Gladiator

Verified customer (What's this?)
Verified employee review (What's this?)

Easy install and the sound is great. Only reason it's not 5 stars is because the instructions sent by crutchfield are not for the sub and amp install so I had to refer to MB Quart for install instructions.

Pros: Sounds great

Cons: Crutchfield installation instructions aren't for this product

Crutchfield response on

2 of 2 found this helpful

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