Customer Ratings & Reviews

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.

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.

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 .

great buy

i have this hooked up to my kicker zx1000.1 amp that powers my 2 L5's. GREAT BUY

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!!!

Hi Quality Wire....

I used this kit to install a Hifonics amp in my grand cherokee.
The quality of the wire is very good and flexible.
However the 4 gauge wire postive wire has a built in connector on the battery end that has a whole that is way too small for putting a side post bolt through... I had to grind it out to the correct size. That is my
only gripe. I would recommend this product anyway.

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.

PA600 with 4 DXi650

I used this kit to put a Polk PA660 behind 4 DXi650s. The kit is beautiful! The fuse box is awesome. The 4G hot and ground wires are flexible and are very high quality. This kit contains some of the best speaker wire I have seen. I didn't need to use the speaker wire it in my 07' Civic, so wired my 3 year old's Cerwin Vega D5's with it in her room. The RCA's are nice looking and now my car set up is wired professionally from home! I chose the 4G over the 8G so I could split the wire to 2-8s in the trunk for 2 amps later.

def worth it

After looking at a few kits I decided to go with this one. The price was a little higher than most but omg is this stuff great. its extremely flexible, provides a vast amount of power to your system, looks cool, and sounds great! lots of copper stuffed in these things. Highly recommend it

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.

Best

Very good!!!

heavy duty product

At first I thought the price was a little on the high side but when I opened the package I was impressed with the quality and amount of product delivered. I felt I got good value for my purchase.

All you'll need for a 4-Channel Amplifier

I'm very happy I chose the Kicker Amp Install Kit with RCAs. High quality 4 gauge that not only does the job but looks real pretty under the hood. That Fuse holder with 100 amp AFS fuse is no slouch either.

Best amp kit I have ever owned!

The cables that came in the palate were of the best quality I have ever owner, the length of the cables were more than enough for any at home, normal installation. I have an 02 ram 1500 extended cab and was able to run a power an ground to my capacitor and had enough cable left over to use the cables from this package for the power and grounds on two more amps. I still have left over remote cables and the RCA and fuse block were amazing. I recommend this kit to anyone who wants to run great deal of power the right way.

Heavy Duty

Has all you need to install an amp and is good quality product.

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.

Plenty of cable plus more!

I bought this kit to pair with my Kicker IX500.4 amp, and it works as should. I even had about 8ft of power cable left after my install. I would recommend this kit to anyone who is installing an amplifier in their vehicle.

GET THIS!

DAMMMMN this product is GREAT! Its better than alll the other brands and cheaper, its super thick and tough. My whole jeep is a Tank now. Road noise is greatly reduced and all rattling coming from my car has stopped, this is a MUST HAVE for your car, truck or whatever! Music sounds amazing and clear subs sound so deep and powerful, Thanxs Sonic!

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.

works

Does exactly what a sound deadener does and stiffens body of vehicle.

Great System Setup

Very detailed review of system setup, operation, etc. Takes time but well worth it.

AWESOME BUY!!!!!!

The Autosound cds are a must for car audio. I have used them to tune my system, and now it rocks! There are many different tests on these cds. So, if you have a rocking system that needs tuned, Sonic Electronix has what you need.

Great Product

I used this on a RV to but in a video/audio system and I really liked the amp kit. Nice a heavy wire and the fuse was nice heavy plastic. You will never go wrong on kicker, so I would tell any one to buy this. I'm thinking of upgradeing my wire to this down the road.

Kicker ZCK44

This cables were more then what I expected the Kicker cables are very flexible and easy to work with specialy if you put all cables under the carpet and seats overall very durable and flexible cables highly recommend

Excellent Tuning Tool

This CD is essential for fine tuning a high end car audio system. Directions are printed on inner jacket and are very easy to undetstand. I wouldn't use any other brand car audio set up disks then these.

Awesome Box

Great sound, good fit what else is there to say, Sonic Electronics great place to buy from

Autosound 2000

A must have for every car audio enthusiast! Be it a basshead or SQ oriented people. It teaches you where the instrument should be, gives you an idea of what sound-staging is all about!

AutoSound 2000 CD-104

Its a good disc to tune your system, but I rarely use it. I highly recommend the DD-1 but if you don't have that kind of money this is still a good choice.

very nice

i got this free with an amp i purchased but i already had kicker wiring in my car so i put this in my brothers car without him knowing and the next day he was wondering why his bass was louder!! this wire is silver tinned copper and is silver in color

Kicker ZCK44

Excellent wiring package. Used it in my car this summer and had plenty of wire to run from the battery to the cabin. Would highly recommend this product to someone looking for a good wiring package!

Kicker Wiring Delivers a Kick

I got this Kicker wiring kit to hook up my Pioneer deck, speakers, and amp. As a Kicker home entertainment speaker owner I had high expectations for the quality and performance of this kit and Kicker once again blew me away. I had more than enough supplies to wire up my Ford Ranger twice. I will be going back to Kicker to wire up a sub down the road.

Great Kit

Complete, easy to install, great value.

Nice wiring kit

This kit came with everything that I needed to install my 4 channel amp. It cost a little more than I was looking to spend but was very well worth it. All of the components were very high quality. Even the speaker wire was very nice; something that is usually over looked. Definately worth the extra money to get instead of the lower priced off-brand kits.

Buy

I am a SQ guy and bought this on a lark. Started listening and son of a gun this cd helped me out on some things and reconfirmed my ears are still pretty good. A good investment.

autosound 2000 cd-104

I use this cd to play my autosound equipment, is great, ease to use

great kit

This a high quality wire kit. the wires are wet noodle flexible. I am completely satisfied.

Great product

A must for the serious audiophile. Makes set up much easier.

Very Detailed

This disc is awesome, I wasn't far off with my own ear but this disc did help me fine tune some details in my clarity and my low end, now my system is super crisp and hits hard at the right time if you know what I mean!!!

Kicker ZCK44 (09ZCK44)

These are awsomes sounding speaker. You can not beat the price. with all Kicker items the quality is awesome.

autosound test cd (ultimate amplifier level setting cd)

If you wish to set your gains using an oscilliscope this is the cd for you. I have set the gains of several car audio systems using this cd and have noticed an improvement in sound quality. Using your ears will get you close this cd in combination whith an oscilliscope will get you bang on the money. Good stuff.

very nice kit

Nice flexible cable, good ends, overall great kit!

Great Sound

These are great for any kind of subwoofers. It has all the wires and hook ups that I needed included.

info

perfect tool for audio setup if you know what you are doing.makes setup easy and fast

great test cd

Has a couple tracks with music, so you can hear what some instrumental music sounds like, and it has several test tones that you can set gain with either by ear or with the use of an oscilloscope for precise tuning.

Great for tuning a new system!

This was the first time I tuned the new sound system and amplifier in my car, and this product really helped me do it right on the first try.

info

good product really helpful to tune you'r audio system. has worked good for me

Good CD for audio setting

Good CD for audio setting.
Good seller.
Very fast shipment.

Checking my ears

Bought this on a whim to double check my ears to see if they were as good as I think. Well, found out I'm still there. Did amps via VOM & checked my ears to see if I had speakers & sub in the ball park.
This is good for a novice and will help teach them what stuff should sound like.

A very useful tool for all sound systems!

So far, I have only used this CD to fine tune my home stereo system. It was very helpful in adjusting the speaker placement. Many years ago, vinyl records were used to do what this CD does, and I even had one that I used to tune my quadrophonic system! Fine tuning or adjusting stereo systems seems to be a practice of the past, and aids like the AutoSound 2000 CD are hard to find. I guess that is all part of the modern times situation of declining music quality!

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

It works

Does what it is intended to. Buy it if you need it. Nice to have for test tones.

By Randy on February 1, 2017 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