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Sony XS-GS1621

6-3/4" 2-way car speakers

Item #: 158GS1621

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2 Reviews | Ask Questions

Installation gear for most cars

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Sony XS-GS1621

Ditch your factory speakers

Step up to a new level of sonic performance with Sony's XS-GS1621 6-3/4" speakers. These 2-way speakers feature a rigid, reinforced special Kevlar woofer cone 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 synthetic fiber dome tweeter will reveal the natural detail that your factory speakers couldn't even hope to reproduce. With that kind of powerful sound in your car, 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 trimmed down the overall mounting depth to make this speaker a great fit for more vehicles. These 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.


  • 6-3/4" 2-way car speakers (pair)
  • mica reinforced cellular (MRC) Kevlar woofer with rubber surround
  • 1" synthetic fiber dome tweeter
  • grilles included
  • power range: 10-75 watts RMS (320 watts peak power)
  • CEA 2031 rated
  • frequency response: 32-30,000 Hz
  • sensitivity: 88 dB
  • top-mount depth: 2-5/16"
  • warranty: 3 years
  • Our 60-day money-back guarantee

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Sony XS-GS1621 Reviews

Average Customer Review:

2 Reviews

Simple Drop in Addition to Honda Element

Written by: Shamus from San Francisco, CA on February 3, 2016

Crutchfield Customer Review (What's this?)

These coax speakers sound incredible and were a great addition to the XS-GS1621C component set I have installed in the front. I am driving both sets of speakers off of a MEX-XB100BT which provides more than enough power. The bass is great and the overall sound is extremely balanced. The speakers have slots for both 3 and 4 hole installations so I did not have to cut or modify anything to drop them into my Honda Element.

Pros: Great balanced sound and incredible simple installation

Cons: Size is incorrectly listed on the Crutchfield website.

Very Nice

Written by: Taylor H. from Mississippi on October 30, 2015

2013 Chevrolet Silverado 1500
Crutchfield Customer Review (What's this?)

Probably one of the best coaxial sets I've purchased yet.

Pros: Great range (ie. Bass, Mids, and Highs) Simple enough to install.

Cons: Not a single thing wrong with them.

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Grilles
  • 2 Grille frames
  • Eight 1-1/8" Self-tapping screws
  • Instructions (English/ French/ Spanish/ German/ Italian)
  • Warranty information
  • Template on box

Product Research


Woofer Cones: The XS-GS1621 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: Each speaker uses a 1" soft dome tweeter for outstanding dispersion and clarity.

Bi-amp Inputs: The integrated 2-way crossover has separate inputs for the woofer and tweeter; this lets you drive the speaker system with dedicated power for the separate speaker elements, instead of sharing power. Out of the box there are jumper wires shorting the tweeter and woofer inputs; the jumper wires must be removed to bi-amp the speakers.

Crossover: The crossover point is 5 kHz and the slopes are 12 dB/octave high pass and 6 dB/octave low pass.

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-GS1621 is 75 watts (derived using IEC 60268-5 standards). They also list the CEA 2031 compliant RMS power as 110 watts. We've adopted the 75 watt rating simply because it's the more conservative figure.

Our Product Research Team

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Customer Q&A