Customer Ratings & Reviews

Not worth it

I had to cut out for the tweeter to fit and since the speakers I purchased could not be deck mounted, I had to cut the speaker hole larger as well so the speaker cone would not be obstructed. For the amount of cutting I had to do, I would just as soon make one from scratch out of 1/4" hardboard.

Great adapters.

Great for any component set just apply some baffles and you'll have great sound quality.

Perfect for me

These worked great and even take the 6-3/4 components.. glad they were so pocket friendly

Nice speakers

Great sounding speakers

awsome product, Great Seller !!!

Product is very well made, durable and does the trick !!! Sellers were awesome to deal with, NO hassels and super quick shipping !!! A++++, will buy again :)

great fit

these fit with no issues or concerns, great product quality!

Metra Speaker Mounting Adapters...worked

This product worked as advertised and was well worth the money.

Worked well, However.....

The instructions described enlarging the mounting holes via an exacto or snap knife, which did not work. I had to use a jigsaw (fine tooth metal blade,) & smoothed the edges with a Dremel.

The installation worked.... But:

I actually thought of taking my finished project to a metal shop to fabricate a flat, sheet metal version, which would be a lot more secure & sound a whole lot better

Great product with a little modification

After a little bit of trimming and adding some Dynamat the bracket it worked perfectly to adapt a 6.5 speaker to a 6x9 space in a 2008 Nissan Rogue.

Good value

Used these in the rear of my car so I could install 6.75" separates instead of 6x9's. Great functionality but the concentric knock outs for the tweeters were problematic and the plate could be stiffer. I would use these again.

2010 Camaro Mounting solution 6x9 to 6.75 separates

Product provided a solution to replace the factory Boston 6x9s with a set of high quality separates in my 2010 Camaro. Could have been a bit larger to offer more options but still worked, just took a slight twist in the cut out. Overall- good product, does not promote vibration, made of ABS plastic, has some degree of flexibility.

Perfect Fit!

Just what I was looking for. I put a set of 6-1/2" components in a 6X9 hole and they sound great!!

Careful!!

Good product, but be careful, I could see it could easily break. I had to enlarge openings for woofer and tweeter for JL Audio components. Used a Dremel tool to further cut out openings, and had no problem. Any sort of a handsaw would break it I believe. As a matter of fact, I think even any jigsaw could work, but you better be good with it.

Great Value

Good overall unit. Has sub woofer control, great sound when coupled with decent speakers and a sub, I like that you can plug your ipod into the rear usb jack and hide it in your glove box. Lots of color schemes to choose from to change the look of the unit to suit your tastes.

Functional

Pros- Fit my speakers, and tweeters. the tweeter adjustment rings were simple and easy to knock out.

Cons- Almost didn't fit in the 6x9 hole and have the screws holes line up with the factory placement in my Honda Civic Coupe. It's not really a Con though, because I did get it to fit with little effort. Very close fit!

I would definitely recommend this product for anyone wanting to put 6 & 1/2 components in the factory 6x9 slots.

Basic speaker adapters

Cheap adapters that can be trimmed, easily allowing a variety of install options. Not very thick, so I only recommend them for factory speaker upgrades, if your putting power to your speaker you might want to either dynamat both sides of this piece or have adapters made out of MDF.

By joshua on December 15, 2017 Verified purchase

Convenient

My car had 6 by 9 openings but I wanted to use a five and a quarter inch component speaker set. This was perfect for me and was not difficult to install

By Anonymous on February 21, 2019 Verified purchase

Randy In Lansing

these are okay as they are when you buy them, But if you wrap them with sound damping then they are great. At first i stalled them normally but there was a rattle when the bass hit, after that i took them out and wrapped them with NVX sound damping and boom they were perfect just like using wood baffles but better because they wont rot or mold.

By Randy on January 8, 2017 Verified purchase

96 Ram 1500 single cab

These adapter plates made it super easy to change out the 6x9's to 6.5's. the pre-drilled mounting holes lined right up, no mods were needed to install a set of JBL GTO 628 coax speakers. I did silicone around them to stop any rattles and put duct tape over the tweeter hole. Good product , highly recommend . Best of all they were free !

By Vintage George on February 22, 2016 Verified purchase

Great adapter, very flexible in their application.....

Not much to say, these do what they are supposed to do, and they do it well. They're very easy to trim or cut if need be, and they come with all of the hardware you'll need. Good price, too.

Good price, is it right for you?

I replaced my factory 6x9s With a set of component 6.5" speakers. The small opening In adapters had multiple pre stamped sizes at the top/bottom that are usable as a template to cut the size necessary to put a tweeter in the same adapter if desired. However the are not like concentric knock outs. It does require some effort and a very sharp tool to get to the desired opening size. I did not mind this at all because it keeps it from being flimsy and gives you a pretty good mounting platform. I would recommend 1 piece baffles be used for sound quality purposes for the 6.5" speaker.

Good product

For the price can't be beat for ease of installation . Made putting speakers in the factory locations a breeze. Would of been so much more of a hassle with out them.

Best shop ever !!!

good quality product
work great, thanks sonic electronix, the best shop on the net !!!

works well but thin

Works well for what they are but it is thin plastic , be warned.

By Michael on June 21, 2017 Verified purchase

Greaat deal

Good, easy to use product. Very inexpensive adapter, especially for cars or motorcycles.

Wow!

Put these speakers in the front of my GMC Sierra and they kick ass! A little pricey and only used the actually speakers so I have lots of accessories left over. Just had my system tuned up and now that they are broken in I can really crank my stereo up. They sound great loud and I love it loud. Great for me. Bad for everyone else who doesn't like my music. Too bad for them.

Decent product

Decent adapters but required some trimming to fit the front doors of a 2012 Ram & left gaps around the 6 1/2 Alpine SXE's. Covered the area with some NVX mat & good to go.

Wrong Description

I ordered this product as it said that this will fit Toyota highlander 2017 and guess what I ended up buying and it does not fit, later I come and check what happen the manual of the product shows 6 x 8 fitting website description shows 6x 9, and guess what my return got delined. website description is wrong about the product

By Atish on June 29, 2022 Verified purchase

JBL 660 GTi

WOW super clear and powerful no distortion at super high listening levels, beautiful imaging, had Focal Utopia 3-ways and these blew them away! Great high end speakers and crossover, true audiophile component set. Use a pioneer DEH-80PRS head unit with these and they sound amazing.

Wrong item

This was sent for a 2015 f150 Platinum with Sony system. This does not fit it's way too small. I made it work but I shouldn't have had to, the idea behind an adapter is to make it easier to change speaker size. Very flimsy.

By Erin on May 12, 2022 Verified purchase

Great Deal

Grate for 6x9 speaker hole in door makes it easy to in stall round 6.25 or 5.25 mid range speakers and tweeters i would highly recommend to buy speaker these adapter.

By Mark on August 7, 2022 Verified purchase

JBL 660GTi

Great speakers, I wish I could find midrange speakers with clear voice quality. These 660GTI's are more for bass..

great speakers

Awesome sound and Power handling , no distortion even with high Volume . Driver/Midrange could and should produce a little more bass . Tweeters are almost eardrum piercing . Speakers are very heavy , make sure they are properly secured inside doors . Crossover ( one unit for both channels ) is impressive , both in size and performance . It is about as big as an Amplifier . Depending on location in Vehicle settings on Crossover are easy to adjust . Packaging ( Aluminum case ) is what makes these speakers so expensive . Cardboard box with Styrofoam would have sufficed . I do recommend the JBL 660 GTI
to anyone who is serious about mobile HI FI .
By playing Pink Floyd " Dark Side Of The Moon " is how I checked the performance of these speakers . Note : these speakers should be paired with a Sub Woofer to bring out the full potential .

When only the best is good enough for you

This is a Professional Speaker. Meaning its sounds like a pair of studio monitors. They are without a doubt the best sounding speakers you can get at this price. They are very revealing and you will hear everything, including all the crappy recordings and crappy mp3's. Make sure you use a high quality source with these and have them tuned properly for your vehicle.

I work in high-end home audio and have ran car audio shops for many years. Nothing I have heard in this price compares. If you are looking at these, that means you like your sound. Pull the trigger and jump in!

JBL 660GTi

I've had these speakers in my Charger for over one year and have yet to find a system that sounds as good as it. One of the woofers went out with a bad voice coil and Sonic Electronix hooked me up with a replacement woofer. The clarity and seperation are superb. The only negative of having a audiophile quality system is that I can definitely hear how poorly some CDs are mastered. I am using the Pioneer Premier P800 PRS head unit and two Stage 4 PRS A900 amps. I have the speakers bi-amped and have the crossovers set in the neutral setting. I have been using JBL speakers exclusively since 1975.

Best speakers out!

Amazing speakers. I have had seven pairs of components and these by far are the best I have ever owned. I compete in car audio. No one will touch my scores with me running these speakers.

Incredible Sound!!!!

I had a pair of MB Quart 6.5 components in my vehicle that I thought sounded great but..... they lacked the umph that a speaker should have when you really wanted it. I heard about the 660GTi speakers from JBL and decided to give them a try. I'm utterly shocked at the sound quality they give out - even at loud volumes!! Absolutely zero distortion and amazing performance. After tweaking of amps and deck, I've never hear a speaker give out more than I expected!!! Well done JBL!!! Bit expensive, but still worth it in the end!!!

Best in sound quality

These are the best sounding speakers I've ever heard. Great price.

Wow!

Absolutely the best sonic quality of any 6-1/2" component set I've ever owned... and I've owned many brands and models. JBL should consider un-discontinuing this product... but perhaps with less functionally-extraneous packaging to reduce the cost. a bit.

speaker component

This speaker component works good. It has a good fidelity sound. I like them, it was worth buying it. I recommend these speakers, the only important thing is to tune them up really good. I'm talking about the equalization, once you do that really good you'll get the best quality from them, but trust me those sound really good. That's all I can say to the people who want to buy them.

It doesn't get any better than this!!

I've had a lot of different component sets and some costing 3-4 times these JBL's but these are simply the best set of 6 1/2's made!! JBL/Harmon knows how to build audio equipment that is second to none. The DIYMA forums tests speakers through Klippel testing and the JBL 660GTi 6 1/2's performed at the top of the list!! These absolutely rock! You won't be disappointed in these components I promise. I just bought two sets since the price dropped and so should you!!!

If its sound quality your after ...

... then these speakers are the ones for you. Amazing, crisp sound quality.

Best I've ever heard. I listen mostly to trance - and these speakers do this particular style of music such incredible justice!

The design stays true to JBL's continuing mission of providing workmanship second to none. They have yet to be properly tuned to my remaining car audio - but currently I catch next to NO distortion. Assured that once I tune them - I will receive none whatsoever. Granted, its imperative to pair these with a correctly rated amp.

I look very much forward to when I next get behind the wheel - as the music I choose to play - regardless of volume - is reproduced to the same exacting standards that its creator intended.

The best car speakers I own..

I originally attempted to purchase 2 pairs of Boston Acoustic's SPZ60's. Fortunately the 2nd pair was on back order and in haste and slight wincing at the cost, I purchased a pair of the JBL 660Gti's for rear fill. Well, there is really no comparison between these speakers and although the SPZ's are very nice speakers, the JBL's are on a completely different level in sound reproduction. I sold the SPZ's and replaced them with another set of JBL 660Gti's. These speakers sound amazing.

Best Components available for the price!!!

It took me almost a year to actually install these. I am powering them with a Phoenix Gold Ti2 1600.5 and Stinger wires and accessories. My head unit is a Pioneer AVH-4100nex.
These are the best sounding and power handling components I have ever dealt with. I have used many other high end brands and these are the best speakers you can buy for the price they are available for. I have absolutely no complaints. I would recommend sound deadening you doors like I did so you won't have rattles. These mids hit hard with plenty of low end as well as very good midrange, and the tweeters are phenominal!!!

By Fred on September 30, 2017 Verified purchase

great quality

They fit perfect for my 07 Lesus es 350 I’m glad I decided to say I had an 07 Lexus ls 460

By Clarence on July 2, 2025 Verified purchase

You're crazy if you choose something else!!!

I bought 2 sets of these and put them in my WRX with 2 Pioneer amps and a 10" JBL sub all running off a Pioneer deck. What these speaker can do is unreal!! They are competition level speakers. They have such range it's incredible. Not only are they crystal clear, they have ridiculous bass as well! I have audiophile friends who spend thousands of dollars on the latest and greatest, and they all want to buy my car now just for the system!!! The price difference is ridiculous. This is an amazing deal. You will keep these speakers for life. Don't miss out!!!!

Great product for the money

One of the best sounding speakers I've ever heard for the money would definitely buy again

By Michael on March 16, 2017 Verified purchase

Wow

These speakers deliver. Everything I was expecting but wasn't expecting. I have an amp to install to drive them but stole a 90x2 channel from the 4x10's I in the factory location of the Saab just to try after finishing the instal. Gives the kick and mid bass I was lacking. Dwarfs the Alpines I have in next to them. Make the Alpine sound like mid range drivers. The high end also woke up and I thought my system was strong there. Sub woofer hits nicely but there is a lot of music between 200 and up that adds definition. Used the leather trim grills and Wave Guide plate thinking the crossover is tuned to put more mids into the tweeter at that setting. Thank Sonic for making these available at an affordable price point. I thought the system was pretty good but it just got a lot more amazing. I recommend them and approve this message.

By Charles on December 4, 2016 Verified purchase

Fantastic!

You are not serious about SQ in your vehicle if you do not have these speakers. This is the third set I have purchased. If you desire CLEAR, CLEAN, POWERFUL SOUND, no other speaker comes close. Remove the jumpers in the cross over and all the speakers (yes, the tweeters too) will push 150RMS. Pair these speakers with a JL AUDIO amp HD 150/4 RMS. It is a perfect match! CAUTION!! Check the clearance between your speakers and the grills. The extrusion on the mids are similar to a subwoofer. these are speakers are beasts!!

By john on October 10, 2016 Verified purchase

Wow, these are worth every dollar

Just completed my installation of these speakers paired with an Alpine PDX-F6 amp, I am still running these in but even at this early stage the sound quality is incredible, when you factor in the excellent discount I cannot work out why you have these in stock at all, they should be racing off the shelves.

Great speakers which live up to the hype

I purchased these speakers for over $700 about two years ago, and bought them again recently. I used the first set as a complete component set using the active crossovers from a Pioneer DEH 80. The SQ is exceptional. Clear sound at all levels plus tremendous midbass. Contrary to reviews you may have seen on DIYMOBILE message boards, the tweeters more than hold their own when used with the exceptional mids. Speaking of the mids, google their review from Erin of Medley Musings. Basically this person stated that the 660GTI mids are in his all-time Top 3 comparable to Scan Speak's top-of-the-line 6.5 mids. I wouldn't bother using the 660GTI's massive and fancy passive crossover. Go active all the way with this set and you can't go wrong.

By Page Fletcher on June 19, 2016 Verified purchase