BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair
BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair
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BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair

3.9 stars out of 50 reviews
(3.9)|
50 ratings
BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, PairBOSS Audio Systems NX654 Onyx Series 6 5 inch Car Stereo Door Speakers 400 Watts Max 4 Way Full Range Audio Tweeters Coaxial Sold in Pairs
Actual Color:Black
selected, Black, $37.99, was $51.00
$51.00

Key item features

  • Powerful Performance: This 6.5-inch 4-way coaxial speaker set delivers 400 Watts MAX and 200 Watts RMS power handling per pair, operating at a 4-ohm impedance.
  • Advanced Components: Each speaker features two 0.75-inch tweeters and a 1.25-inch Mylar cone midrange, ensuring a full range audio experience.
  • Durable Construction: Built with a poly injection cone material, stamped steel baskets, and protective metal mesh grills for enhanced longevity.
  • Precise Engineering: Incorporates a 1-inch aluminum voice coil and offers a frequency response of 65-20kHz with a sound pressure level (SPL) of 90 dB.
  • Convenient Installation: Designed with a mounting depth of 2.25 inches and a mounting diameter of 5.63 inches, and includes all necessary installation hardware.
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Current price is Now $37.99
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was $51.00
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Sold and shipped by Spreetail
4.323165665725069 stars out of 5, based on 42127 seller reviews(4.3)
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BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair
BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair
current price Now $37.99, Was $51.00
BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair
3.9 out of 5 Stars. 50 reviews
BOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)
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BOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)
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Comparison Chart:
Size4.12 x 14.87 x 8.5BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair6.5\"BOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)8.63 x 12.0 x 5.63Boss Audio Brs5768 Dual-cone Replacement Speaker [5" X 7"/6" X 8"]-BIBABLYKE 6" 2-Way Coaxial Full Ranges Frequency Speakers Automobile Audios Music Stereo Speaker Auto Door Subwoofer
Car speaker size class6.5"BOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair6.5"BOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)5" x 7"Boss Audio Brs5768 Dual-cone Replacement Speaker [5" X 7"/6" X 8"]6"BIBABLYKE 6" 2-Way Coaxial Full Ranges Frequency Speakers Automobile Audios Music Stereo Speaker Auto Door Subwoofer
Rms power rating400 WBOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair400 WBOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)40 WBoss Audio Brs5768 Dual-cone Replacement Speaker [5" X 7"/6" X 8"]50 WBIBABLYKE 6" 2-Way Coaxial Full Ranges Frequency Speakers Automobile Audios Music Stereo Speaker Auto Door Subwoofer
Peak audio power handling400 WBOSS Audio NX654 Onyx 6.5" 400W 4-Way 4-Ohm Car Coaxial Speaker Set, Pair400 WBOSS NX654 6.5" 400W 4-Way Car Audio Coaxial Speakers Stereo, Black (8 Speakers)80 WBoss Audio Brs5768 Dual-cone Replacement Speaker [5" X 7"/6" X 8"]600 WBIBABLYKE 6" 2-Way Coaxial Full Ranges Frequency Speakers Automobile Audios Music Stereo Speaker Auto Door Subwoofer
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Customer ratings & reviews

3.9 out of 5 stars
stars50 ratings40 reviews
How item rating is calculated
  1. 5 stars54% (27)
  2. 4 stars18% (9)
  3. 3 stars4% (2)
  4. 2 stars8% (4)
  5. 1 star16% (8)

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Showing 1-3 of 40 reviews

Feb 6, 2026
Jason
Item details
Color: Black
Sold and shipped bySpreetail
5 out of 5 stars review

Verified Purchase

these Boss speakers are awesome. 4 way 6.5 in speakers. these speakers are great if you have a subwoofer the 4 way speaker really can sound crisp amount the heavy bass and they sounfd even better when power ed by an amp.

Incentivized Review
Helpful?426KXTN4Z2N417324279
Jul 6, 2014
Silverhound79
5 out of 5 stars review

Verified Purchase

Great sound do the price

As other reviews a great speaker for the money. Has great sound and doesn't distort at higher volume.

Helpful?426KXTN4Z2N417324279
Oct 3, 2014
CalyJuan
5 out of 5 stars review

Verified Purchase

Good speakers

sound great for the price. Clear sound and sound way better then irriiginal ones. In happy with the purchase and would recommend.

Helpful?426KXTN4Z2N417324279