Customer Ratings & Reviews

Great sub

Sub has performed better than I thought it would. JL Audio has great products.

Great Sub

Have 2 of these underneath the backseat in a F-150 2010 extended cab. Great sub hits the notes very LOUD!!! Great sub for having no space to put them. Have it setup w/ JL audio to get rid of factory speakers and you can hear every note high and low. Worth the buy. May be worried about not getting the bass you want. DON'T worry about that at all. Get a great box too and they work superb.

THE BEST

I purchased these subs and I'm very pleased with them.

JL Audio makes a good product. I have made many buys from Sonic, very pleased.

Very Solid

I am very pleased with these subs. I have 2 of these in my 03' f150 supercrew and these fit under my backseat perfectly without any real modifications. my amp is a Alpine MRP-f300
SOUND: these subs really do sound great. They have what i would call "grown man bass." Your probably not going to shake your neigbors cars mirrors but they provide a very solid thump without being flooded or sloppy. I have always had 2 12's in all my previous cars and while these don't hit as hard as those did on the very deep lows they still hit amd I would say it is rather close and these sound better.
SIDE NOTE: As always it depends on what amp and whatnot you have running your speakers but with these i can set loose change on my console and watch it move with the bass where i have never really been able to do that before even with my 12's
CONCLUSION: if you are a teen and just what the most flooded. ratteling bass you can find these might not be for you. but if you want a very clean sound that will still shake your seat and fit conveniently in a tight space i would highly reccomend. .
*Only giving 4 stars for look/design and durability as i never see speakers and have only had them for 6 months so can't fully speak to durability.

8" W3?

These really do not sound like 8's. They slap hard and people are always amazed when they hear them. I have 2 8 W3 in a sealed box in a nissan frontier crew cab and they hit so hard. I had someone come into my car not knowing i had subs and asked them what they sounded like and he said he thought it was a 12 in a large box. No one believes they are only 8's until they see them. I definitely recommend this to anyone limited in space and wanting the most boom for their buck

Hammers

I put a single 8W3 in a fiberglass enclosure in the back of my SUV on 240 watts. It really gets down! Best in a sealed enclosure.

sound supreme ++

i have a lexus sc 400 these speakers with components and all fit flawlessly and offer a sound that is truly extraordinary, i was advised to buy this brand with guaranteed satisfaction, and i openly admit that is what i have. Complete satisfaction and super pounding power, highly recommended, state of the art is JL Audio, and i got a 8 inch sub instead of 10 i was very worried it would not provide the bass i wanted wow it vibrates the mirrors and seats and thumps!! more than expected and surpassed 2 friends 10 and 12s they had

Great

I got 3 and they sound real good. They are a must buy.

Super 8

2008 Wrangler Unlimited. Made spacer so that the 8w3v fits in OEM enclosure. Being fed by Cadence XAH250.2 mono. If you are reading the reviews, you know the praise for this little thing. No BS, this little thing is awesome for an 8. In previous vehicles, I've had a single 10 and a single 12. Both Polk db's. The JL is as loud as the 10 and musically it sounds better than both the 10 and 12. Both db's sounded "messy". This one is very precise. Definitely worth they extra money and for this particular application, it is perfect.

Great deal

i would recommend these speakers to anyone who is tight on space but still wants the good sound and or bass. They are a little pricey but i would buy them again in a heart beat

Great product!

Sound quality is great ! Very nice sub for the money, very worth it!!

Awesome sub!

I have this sub in my Audi S4 and wanted to not sacrifice trunk space. I had a custom box built in the compressor and tool box storage area. The airspace needed was less than .30 cu ft! You would never know the sub was in there unless you pull the panel off. I run two sets of components and this sub off my Alpine PDX5 and sounds amazing! If you are looking for a reliable sub with good sound for little airspace, then this is your best option. I did all the researches and this is the best bang for your buck. You won't be disappointed.

thats an 8?!

Skeptical is the first word that comes to mind when I think of my purchase of this speaker. I have only had JL in any car I've ever owned, but never an 8. I knew the quality, but had never heard one before. Well, now I have and oh my, is it amazing! I built a custom box and hooked it up to a RF 330-1 amp(also awesome) and am now in audio bliss. These little speakers hit every note thrown at them and they do it precisely and effectively. They need very little power to work so thats a big plus to the cost conscious buyer. I have one 8 in a 2010 toyota venza and couldnt be happier. Good work as always jl!

WOW its only an 8 inch!?!?

this is pretty cheap for a sub of this quality...it doesn't sound like an 8. its a beast. really, it sounds like a 12 at least, buy this for small spaces...i didn't want a box in my Tahoe, so i have this in a raggedy stock plastic box, dynamat...in a Tahoe. and it slams. ridiculous. i love it. clean hard and loud. this kills my mirrors.

What a great subwoofer!

I replaced the stock amplifiers and subwoofers in the doors of my 2005 Ford Mustang, and let me tell you...Make sure you get sound dampening material for these subs!

These subs hit hard, but yet sustain the lowest of notes. I mostly wanted to get sound quality, and I knew JL Audio had a reputation for sound quality---and they sure live up to it!

Overall, this was a tremendous purchase, especially for the price! I highly recommend the JL Audio 8w3v3-4.

Third generation model excellent sound.

I would recommend this product, third generation model excellent sound.

JL 10

Great sub.. not too much not too little. great if youre looking for SQ.

JL AUDIO 8W3V3-4

Purchased (2) of the subwoofers from Sonic Electronix via Ebay about six months ago. Since installing them they have been one of my best car audio purchases that I can remember. I've gone through 4 different systems, ranging from 15, 12, 10 inches. If your looking for a compact woofer that is backed by one of the best audio companies out there this sub is for you. In a small ~ 1 cu ft sealed box these subs hit just as hard as a comparable 10" woofer, given proper power.

I have done business with Sonic Electronix for almost four years, and I will continue to use them in the future.

Great Value, Customer Satisfaction

Great product. Would not believe the sound from this sub. I have it in 2010 Equinox in factory sub box just retro fitted it. With a punch A250 on it sounds like two tens at any level of sound.

J L Audio 8w3 subwoofers rock

I have an 06 tacoma double cab and they mount totally out of site behind the rear seats without loss of space. No one will ever know that they are there until you crank them up and trust me you will be impressed with the performance as well as everyone else

Amazing

I bought this speaker about 6 months ago. My intention was just to upgrade the speaker in my factory installed sub-woofer box. Needless to say, this was the best upgrade I have EVER invested in! The sound is stunning, the lows hit amazingly hard and the mid punchy bass is the perfect complement. On top of that, the box I have isnt even ported and I'm only running a 250 watt mono amp! I'm perfectly content with the sound and I haven't even pushed the limits yet. I highy recommend this Sub.

JL Audio 8w3 is a great product!

I had a 10w3v3 in my vehicle, but just wanted to try an 8w3 just to see how it sounded. I was very pleasantly surprised - the sound quality and clarity of bass guitar notes was much better with the 8" than the 10". I had to turn the gain up a couple clicks to get the same volume as the 10", but that was no problem.

Great product

I purchased this 8" sub because I have limited space in an 87 Fiero. I made a custom box and mounted it under the dash, this sub hits like a 10" and I am extremely happy with the performance of this product.

Best boom for your buck...

If your looking for tasteful sound in a confined space then this is the sub for you. They really do well in small enclosures. You can find specs on JL's website that make them come to life. You also won't find them any cheaper than Sonic.

Subwoofer JL Audion 8W3V3-4 Review

This was placed in a 2002 Toyota Avalon as a replacement subwoofer. We amplified it with a JL Audio amplifier 200W already installed under the rear parcel deck.

Pros: Excellent Service from Sonic. No problems whatsoever with shipping, packaging, anything. Subwoofer performs flawlessly. Well made. Robust magnet.

Cons: None. Simple transaction and install. A little pricey.

Sounds great

Sounds very crisp!

JL 8

I have 1 JL8W3 in my sierra extended cab w/ factory Bose and this tiny little speaker rocks. It brought the complete system to life. If your tight on space I'd say this is the way to go!

Great Sub!

I got this sub for a 2002 tahoe because it has a stock 8" sub already and i didn't want a box in the back...lets just say you will be shocked that this is only 8". its sounds like a 12. i put it in the factory box after Dynomatting it a little, great for accurate bass, and its very loud if you want that. awesome sound if you don't have much space.

Great quality

This sub turned out great! Works awesome and fits perfectly!

great sound, save space

excellent woofer. installed in f150 under back seat in custom 3.5 cu. box. great solid bass and plays all genre's of music well. combined with jl amp this thing hits hard.

Great for tight spaces and SQ

I have two of these in a custom down firing box under the rear seat in an 07 Avalanche. The box fits under one side of the seat and extends to the center powered by Alpine pdx 1.600 amp. Bass is very clean and strong, hits every note and kicks the back of the front seat. Sounds great but leaves out most of bass under 30HZ. Sounds better played moderate to loud. Great for SQ set ups. Recommend three for lower bass or ported box. Genre=Cont Jazz, R+B, Rap. Neo, soul blues.

Still trying to understand its value.

I used this sub with a JL JL250/1 and I'm having a hard time figuring out why this sub costs so much. It has great SQ, hits high bass well. I've seen other 8" subs for around the same $ or less that offer a lower frequency range. Besides that, before this sub, I tried a kicker c88, RE REX, and I'm just confused why this sub is more than double the price of my others performance wise they seem to be relevant. I would not buy again.

little sub....HUGE BASS

Wow. That's the first word that came to mind after i installed this little wonder. JL already has an outstanding reputation for sound quality and power especially when it comes to their subs. This 8" w3 series is no exception. I was considering a smaller sub because of the cramped space i have in my jeep wrangler. I researched which sub i wanted for my jeep for a few months before buying this one, so i know what this thing is capable of and the quality sound it can produce. I needed a sub that produced maximum sound with minimum space requirements; this sub definitely meets and surpasses this criteria. After installing this sub in a sealed box that meets the performance requirements, it took up hardly any space and sounds phenomenal(when matched up with the proper amplifier). The 8w3 comes second only to the 8w7(which is pricey) and it sounds like two 10's, if not better.

Best 8" compact subwoofer!!

I love this little sub! sounds great, looks great! I was told about it locally for my application, they didn't have it in stock so I immediately went to sonic Electronix

JL Audio 8W3V3-4

After three weeks of listening to two of these 8w3 subs in my crew cab truck, I am comfortable with saying they are very good. Running them in a ported box under my rear seats, fed by a RF prime 500.1 mono amplifier wired to 2 ohm load. Without over driving them with too much gain, I can say they play everything excellent and musically at all volumes, down to low 30hz range. They play all genres well, metal, rap, classic rock, dubstep, pop. They shake my rear view mirror and a little my side mirrors. I can feel them thump decently, but they aren't as powerful as my old Phoenix Gold 12 inch in a sealed box I used to have in a hatch back at around the same wattage. If you don't have a lot of space, want a moderate amount of bass, and a musical sub-woofer, two of these fit the bill very well.

By Anonymous on May 14, 2018 Verified purchase

Great upgrade

Replaced 2 SAS 8"bazooka's w/1 8W3V3-4 in a bazooka tube. Bass output is much better then the 2 SAS 8's. Plan on getting 1 MORE!!!

By Chad on August 10, 2017 Verified purchase

Awesome Subwoofer

I recommend this 8 inch subwoofer for any performance build, but more so to those who are installing them in vehicles that have space for a deeper, woofer frame mount. Sounds amazing in a customized 2007-13 GMC or Sierra enclosure, also in trunk spaces with proper enclosure dimensions.
PROS: Controlled tight deep bass in smaller sealed or ported applications. Looks great and sounds better than most entry level 12" woofers.

CONS: Frame may be too deep for most shallow mount applications.

By SSLB on November 3, 2017 Verified purchase

Love my 8w3v3s

Big bass for such a small sub/box. Sounds great inside my truck and no vibrating the neighbors windows ???? unless I really want to. These subs are great

By ASciv on July 17, 2022 Verified purchase

JL Audio 8W3V3-4

The best 8" sub.. Excellent Sound quality very low frequencies... better than the competition. Good product for the price

Amazing product

Been going strong for a couple of years now, best subs ever installed 2 in a sealed box powered by a 500W amp and these things slap, but with tight bass.

By sizzle on February 19, 2020 Verified purchase

Great value

Price is on point.Shipping was on time ,and packaging was great.Will order from Sonic again

By Susan on October 11, 2024 Verified purchase

Clear and clean sub ????

By Gerardo on August 8, 2024 Verified purchase

Super fast delivery, great customer service

I called in versus order online. The representative was polite, professional and took my order without any issues. The JL Audio Speaker is not cheap but I needed an exact replacement for my Corvette. All is good

By jim on May 9, 2024 Verified purchase

Best Kept Secret in High-End Bass

I’ve been an audiophile for a long time, and I’ve learned that bigger isn't always better—better is better. I picked up a pair of JL Audio 8W3v3-4s for a custom build in my truck, and they are performing way beyond their size.

By Johnathan on April 9, 2026 Verified purchase