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Sony XS-GS1621C

6-1/2" component speaker system

8 Reviews | 2 questions - 3 answers

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Our take on the Sony XS-GS1621C

Step up to a new level of sonic performance with Sony's XS-GS1621C 6-1/2" component speaker system. The package includes two 6-1/2" woofers, two 1" dome tweeters, and a pair of outboard crossovers. Each woofer features a rigid, reinforced special Kevlar that delivers focused midrange and strong midbass punch, even during high-volume playback. A tough rubber surround supports the cone, so this speaker will stand up to the inevitable abuse that awaits all car speakers.

Give your sound dimension


Using its bi-amp capability, the XS-GS1621C's crossover allows you to take full advantage of this system's 75 watt RMS rating.

Step up to a new level of sonic performance with Sony's XS-GS1621C 6-1/2" component speaker system. The package includes two 6-1/2" woofers, two 1" dome tweeters, and a pair of outboard crossovers. Each woofer features a rigid, reinforced special Kevlar that delivers focused midrange and strong midbass punch, even during high-volume playback. A tough rubber surround supports the cone, so this speaker will stand up to the inevitable abuse that awaits all car speakers.

And if you crank old favorites through these speakers, the separate 1" synthetic fiber dome tweeter will reveal the natural detail that your factory speakers couldn't even hope to reproduce.

Tweak away

Included external 2-way crossovers allow you to get cleaner highs and fuller lows by sending the appropriate frequencies to the woofer and tweeter. Sony also provides two mounting options, so you can install your tweeters closer to your ears to achieve the best possible sound staging for your car. With that kind of powerful imaging, you might find yourself taking the long way home.

They look good too

If you're planning on a custom installation, Sony includes refined, black grilles for seamless integration into most car interiors. Sony has also reduced the overall mounting depth, making this system a great fit for more vehicles. These component speakers are protected by the GS Series 3-year warranty, and they'll handle up to 75 watts RMS – so go ahead and rock out.

Installation note: You'll need a pair of our universal backstraps to install the tweeters in the factory locations.

Product Highlights:

  • component speaker system includes two woofers, two tweeters, two external crossovers, and two woofer grilles
  • 6-1/2" mica reinforced cellular (MRC) Kevlar woofers with rubber surrounds
  • 1" synthetic fiber dome tweeters
  • 2-way external crossovers
  • 4-ohm impedance
  • power range: 10-75 watts RMS (320 watts peak power)
  • CEA 2031 rated
  • frequency response: 30-30,000 Hz
  • sensitivity: 87 dB
  • top-mount depth: 2-1/4"
  • grilles included
  • warranty: 3 years
  • Our 60-day money-back guarantee

What's in the Box:

  • 2 Woofers
  • 2 Woofer grilles
  • 2 Woofer grille frames
  • 2 Crossovers
  • 2 Tweeters (each has attached 12" speaker lead)
  • 2 Surface mount tweeter housings
  • 2 Angled surface mount tweeter housings
  • 2 Adhesive backed surface mount pads
  • Twelve 1-1/8" Self-tapping screws
  • Two M4x3mm Flat head machine screws
  • Installation instructions (English/ French/ Spanish/ German/ Italian/ 15 other languages)
  • Warranty information

full bodied concert sound

glenn haig, Naples, FL


Sony XS-GS1621C Reviews

Average Customer Review(s):

(8 Reviews)

full bodied concert sound

glenn haig from Naples, FL on 12/19/2018

2007 Acura RDX
Crutchfield Customer Review (What's this?)

full bodied concert sound

Pros: great sound

Cons: none

Great main speakers

Chad from MO on 11/15/2017

2004 Chevrolet Silverado 1500
Crutchfield Customer Review (What's this?)

I blew out the crossover on two of my Infinity Perfect 6.1 speakers into the kick panel of my Silverado and replaced them with these. Wow much improved sound with the tweets up in the windshield. No more harsh highs from the Infinitys making it uncomfortable to listen to. I still have one set hooked up in front but the tweeter in the door is great for emphasizing the super highs. Most times the Infinitys are low though so I can hear these babies. I did have some resonance in these at about 100 Hz but cut that in the amp crossover and good to go.

Pros: Not too bright, sturdy grille

Cons: 100Hz resonance

Great sound

Byron from Brooklyn on 5/7/2017

2009 Honda Civic DX
Crutchfield Customer Review (What's this?)

Awesome sound for the price easy i installation

Pros: Easy install

Cons: None

Top notch

Byron from Orlando, FL on 4/18/2017

2007 Nissan Titan
Crutchfield Customer Review (What's this?)

Bought these at the recommendation from a friend. These are great. I wasn't expecting to have to wire the crossovers but the effort was well worth it.

Pros: great sound

Cons: none


Guest from Atlanta, GA on 1/1/2017

2015 Ford Mustang

These speakers are awesome. Put these in my 15 Mustang with a stock base factory radio. World of a difference. These speakers are perfect for the stock setup. They sound magnificent and the bass thumps even at full volume still no distortion. I can't wait to put an amp and sound processor to really drive them. The crossover is perfect for the Mustang since it has 2 separate inputs for the tweeters and woofers. I originally tried a different set of component speakers with a crossover that had only 1 input with 2 outputs and sounded like garbage. Just buy these speakers. Sony did a solid job at this price point.



Excellent sound for the buck!

Nathan from Eau Claire, WI on 8/28/2016

2008 Toyota RAV4
Crutchfield Customer Review (What's this?)

These are great and greatly improved the audio quality in my 2008 Toyota Rav 4.

Pros: These sound great compared to the tiny stock speakers in my Rav 4. I only installed the woofers though, since the tweeters require re-wiring from the head unit.

Cons: They do distort a bit if you are cranking your favorite song. I Prefer metal and these have a little trouble keeping up with some of the music at a loud volume. The mounting hardware that came with them is also extremely cheap, and you will more than likely need to visit your hardware store to get new nuts and bolts for the brackets that fit your vehicle.

Amazing sounding Sony speakers

Alexander from san bernardino, CA on 3/13/2016

2001 Toyota Celica GTS
Crutchfield Customer Review (What's this?)

Wow you can really tell the difference in the speakers. Punchy mid bass sound and great highs. Even more of a thumpy sound when combine with a amp. And with it added bi-amping capacity you can really add some juice to the woofer for punchy bass and to the tweeters for crispy highs.

Pros: Great sounding midbass and lows. Bi-amping adds a lot of possibly to increase the overall performance of the component speakers. Nice design too.

Cons: While the speakers produce great mids it can over produce high notes if you put it on high pass on a amp too. But adding a Sony subwoofer and lowering the setting a little and you got a performance sounding system.

Sound amazing such clarity

Savageseth from Exeter, CA on 2/18/2016

Crutchfield Customer Review (What's this?)

I wired two sets of these components speakers in my 2004 lancer. Powered by a Sony g series stereo. Completely destroys the stock set up. The tweeters have such clarity that at times I have to turn down because some highs hurt my ears. The mid bass speaker thumps good just right to me. Doesn't compete with my p3 tens. If you like music at high volumes these are for you

Pros: Great quality construction, 3 year warranty.

Cons: The price is a little steep


Hands-on research

Features and Specs

Speaker Size 6 1/2
Design 2-way
Tweeter Design 1" Dome
Impedance (Ohms) 4
Tweeter Composition Synthetic Fiber
Woofer Composition MRC Kevlar
Woofer Surround Rubber
Parts Warranty 3 Years
Labor Warranty 3 Years
Sensitivity (1W at 1 meter) 87
Sensitivity at 2.83 volts N/A
Frequency Response 30 - 30k Hz
Minimum RMS Wattage 10
Maximum RMS Wattage 75
Peak Power Handling (Watts) 320
Top-mount Depth (Inches) 2 1/4
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5

Product Research


Woofer Cones: The XS-GS1621C woofers use an MRC cone (Mica Reinforced Cellular glass fiber composite) with Kevlar to reduce weight and increase rigidity, delivering full bass response.

Rubber Surrounds: For a smoother response and improved durability, each woofer uses a rubber surround.

Tweeters: The tweeters are 1" soft synthetic fabric domes. They can be flush mounted, surface mounted, or surface mounted at an angle using the included housings.

Tweeter Mounting Dimensions:

  Frame Width Frame Length Cutout Diameter Mounting Height Mounting Depth
Flush Mount 1.911" 1.911" 1.6" 0.31" 0.555"
Flat Surface Mount 2" 2" N/A 1" Screw Depth
Angled Surface Mount 2" 2.25" N/A 1.17" Screw Depth

Crossovers: Each crossover has high-pass and low-pass outputs with a 5 kHz crossover point. The high-pass slope is 12 dB/octave and the low-pass slope is 6 dB/octave. A switch inside each crossover allows you to set the tweeter output level according to your system requirements and personal preference; choose 0 dB (factory setting) or -3dB. The inputs and outputs are screw terminals; they will accommodate bare wire or spade connectors up to 0.315" wide. There are two mounting holes in the base of each crossover.

Bi-amp Inputs: The 2-way crossovers have separate inputs for the woofer and tweeter; this lets you drive the system with dedicated power for the separate speaker elements, instead of sharing power. If the system is powered using only two amplifier channels, the woofer and tweeter inputs should be shorted together.

Crossover Dimensions:

  • Length: 4.75"
  • Width: 2.7"
  • Height: 1.2"

Mounting: The speakers can be easily mounted in a variety of 6-3/4" applications. Given the required cutout, they will also fit into the opening for a typical 6-1/2" speaker (approximately 5" diameter) but the screw hole pattern is larger than a standard 6-1/2", so new holes would have to be drilled.

Specification Note: Sony's rated power spec for the XS-GS1621C is 75 watts (derived using IEC 60268-5 standards). They also list the CEA 2031 compliant RMS power as 120 watts. We've adopted the 75 watt rating simply because it's the more conservative figure.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Because of 4 star rating [ Russell  Jan 14, 2017 ]

2 questions already asked

What Samuel described above is correct--unless you're using two separate amplifier channels to power the tweeters and woofers separately, you would take the full-range signal from the factory radio and connect that to one side of the crossover. The other side of the crossover is then shorted together. If you would like to discuss further, feel free to contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Larry  Mar 21, 2017 ]  Staff
Bi amp? Do you mean the crossover? If so and you are using factory wires from your head unit, just use the wire that runs to the woofer. It's just a full range signal to that speaker with another wire spliced that runs to a tweeter that has a resistor to block the low frequencies. Now since your signal is full range you would run the factory wooferl wire to either side of the input of the crossover and use a jumper wire to the other side of the input; positive to positive and negative to negative. The crossover will split the signal. Hope this helps, Samuel M. [ Samuel  Mar 18, 2017 ]