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Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
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Alpine S2-S40C

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System

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280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System

• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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found car based on your search
Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door
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Was $160.00 Details
$129.95 /set

In stock

Only 2 Left!

JBL STAGE2 524 (STAGE2524)

420W Peak (70W RMS) 5.25" Stage2 Series 2-way Coaxial Car Speakers

Save 15% at Checkout with Code: Fall15
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420W Peak (70W RMS) 5.25" Stage2 Series 2-way Coaxial Car Speakers

• 210 watts Peak Each, 35 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Save 15% at Checkout with Code: Fall15
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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Was $89.99 Details
$49.99 /pair

In stock

Cerwin Vega XED525C

600W Peak (60W RMS) 5.25” XED Series 2-Way Component Speakers

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600W Peak (60W RMS) 5.25” XED Series 2-Way Component Speakers

• 300 watts Peak Each, 30 watts RMS Each
• 1" Metallic Balanced Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 94 dB

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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Memphis PRX4

80W Peak (40W RMS) 4" Power Reference Series 2-way Coaxial Car Speakers

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80W Peak (40W RMS) 4" Power Reference Series 2-way Coaxial Car Speakers

• 40 watts Peak Each, 20 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 86 dB

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door
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Was $109.95 Details
$84.95 /pair

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Only 1 Left!

Hifonics ZS525CX

400W Peak (60W RMS) 5.25” Zeus Series Coaxial 2-way Car Speakers

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400W Peak (60W RMS) 5.25” Zeus Series Coaxial 2-way Car Speakers

• 200 Watts Max Each, 30 Watts RMS Each
• 1" Mylar Balanced Dome Tweeter
• Alpha-Cellulose Cones
• 4 Ohms Impedance
• Sensitivity: 88dB
• Mounting Depth: 2"

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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5
Was $44.99 Details
$21.95 /pair

In stock

Only 1 Left!

Infinity Reference 5032cfx (REF-5032cfx)

270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers

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270W Max (90W RMS) 5.25" Reference 2-Way Coaxial Car Speakers

• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohms Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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Was $130.00 Details
$82.95 /pair

In stock

Cerwin Vega XED52

550W Peak (60W RMS) 5.25" XED Series 2-Way Coaxial Car Speakers

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550W Peak (60W RMS) 5.25" XED Series 2-Way Coaxial Car Speakers

• 275 watts Peak Each, 30 watts RMS Each
• 1" Metallic Balanced Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 94 dB

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

empty

4
Was $36.99 Details
$34.99 /pair

In stock

Diamond Audio MP525

300W Max (150W RMS) 5.25" PRO Full-Range Coaxial Horn Driver Speakers

Save 20% at Checkout with Code: Fall20
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300W Max (150W RMS) 5.25" PRO Full-Range Coaxial Horn Driver Speakers

• 150 watts Max Each, 75 watts RMS Each
• 1" Aluminum Horn Tweeters
• Sensitivity: 101 dB
• Mounting Depth: 2.99"

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Save 20% at Checkout with Code: Fall20
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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Was $439.99 Details
$399.99 /pair

In stock

Only 2 Left!

JL Audio C2-525

450W Peak (120W RMS) 5.25” Evolution C2 Series 2-way Component Speaker System

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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450W Peak (120W RMS) 5.25” Evolution C2 Series 2-way Component Speaker System

• 225 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Dome Tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohms
• Sensitivity: 89 dB

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Save $25 off Speaker Installation Accessories, Use Code: ACC25
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner
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Was $329.99 Details
$299.99 /set

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Infinity Kappa 503CF

480W Peak (160W RMS) 5.25” Kappa Series 2-way Component Speakers System

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480W Peak (160W RMS) 5.25” Kappa Series 2-way Component Speakers System

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Edge-Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohms
• Sensitivity: 93 dB

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

empty

Was $449.95 Details
$299.95 /set

In stock

Cerwin Vega H752

500W Peak (80W RMS) 5.25” HED Series Coaxial Car Speakers

Save 10% at Checkout with Code: Fall10
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500W Peak (80W RMS) 5.25” HED Series Coaxial Car Speakers

• 275 watts Peak Each, 40 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Graphite Reinforced Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

shipping truck icon
FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Save 10% at Checkout with Code: Fall10
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

empty

JBL Stage3 427F (Stage 3 427F)

300Peak (60W RMS) 4" Stage 3 Series 2-Way Coaxial Car Speakers

Save 15% at Checkout with Code: Fall15
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300Peak (60W RMS) 4" Stage 3 Series 2-Way Coaxial Car Speakers

• 150 watts Peak Each, 30 watts RMS Each
• 3/4" Edge-driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohms
• Sensitivity: 90 dB

shipping truck icon
FREE 3-day shipping to VA. Get it Wed, Oct. 4
install icon
Save 15% at Checkout with Code: Fall15
found car based on your search
Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door

empty

Was $89.95 Details
$59.95 /pair

In stock

JBL Stadium 52CF

480W Peak (190W RMS) 5-1/4" Stadium Series 2-way 3-Ohm Component Speaker System

Save 20% at Checkout with Code: Fall20
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480W Peak (190W RMS) 5-1/4" Stadium Series 2-way 3-Ohm Component Speaker System

• 240 watts Max Each, 80 watts RMS Each
• Aluminum Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohms
• Sensitivity: 93 dB
• Mounting Depth: 0.275"

shipping truck icon
FREE 3-day shipping to VA. Get it Wed, Oct. 4
install icon
Save 20% at Checkout with Code: Fall20
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

empty

1
Was $439.95 Details
$409.95 /pair

In stock

Autotek ATS525CX

250W 5-1/4" 2-Way ATS Series Coaxial Car Speakers

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250W 5-1/4" 2-Way ATS Series Coaxial Car Speakers

• 250 Watts Max, 125 Watts RMS
• Neo-Mylar Soft Dome Tweeter
• Mounting Depth: 2-5/16"
• Polypropylene Cones
• 4 Ohms Impedance
• Sensitivity: 89dB

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner

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Cerwin Vega XED42

500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers

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500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers

• 250 watts Peak Each, 20 watts RMS Each
• 1" Metallic Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 93 dB

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door

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Kicker KSC504 (47KSC504)

300W Peak (150W RMS) 5.25” KS Speaker Series 2-Way Coaxial Car Speakers

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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300W Peak (150W RMS) 5.25” KS Speaker Series 2-Way Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB

shipping truck icon
FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Save $25 off Speaker Installation Accessories, Use Code: ACC25
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner
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VIP Product Get $13.00 in rewards to spend later

empty

Was $149.99 Details
$129.99 /pair

In stock

Pioneer TS-G1020S

420W Max (120W RMS) 4" G-Series 2-Way Coaxial Car Speakers

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420W Max (120W RMS) 4" G-Series 2-Way Coaxial Car Speakers

• 210W Max Each, 60W RMS Each
• 1-3/16 Balanced Dome Tweeter
• Injection Molded Polypropylene with Mica Cone
• 4 ohms Impedance
• Sensitivity: 87dB
• Mounting Depth: 1-3/4"

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door

empty

Was $65.00 Details
$49.95 /pair

In stock

Limited time!

Kicker CSC54 (46CSC54)

225W Peak (75W RMS) 5.25” CS Series Coaxial Speakers with PEI Tweeters

Price Drop, Instant Savings Already Applied!
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225W Peak (75W RMS) 5.25” CS Series Coaxial Speakers with PEI Tweeters

• 112.5 watts Max Each, 37.5 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 90 dB
• Mounting Depth: 1/4"

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Price Drop, Instant Savings Already Applied!
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner
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VIP Product Get $8.10 in rewards to spend later

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Was $99.99 Details
Save $19.03
$80.96 /pair

In stock

Kenwood KFC-P510PS

480W Peak (90W RMS) 5.25” Performance Series Component Speakers

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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480W Peak (90W RMS) 5.25” Performance Series Component Speakers

• 240 Watts Max Each Side, 90 Watts RMS Each Side
• 1" Soft Dome Swivel-Mount Tweeter
• Injection-molded polypropylene cone with rubber surrond
• 4 Ohms Impedance
• Sensitivity: 86 dB
• Mounting Depth: 2-3/8"

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Save $25 off Speaker Installation Accessories, Use Code: ACC25
found car based on your search
Fits the following location in your 1973 850
  • Rear Deck Corner
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VIP Product Get $9.80 in rewards to spend later

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Was $180.00 Details
$98.00

In stock

• 240 Watts Max Each Side, 90 Watts RMS Each Side
• 1" Soft Dome Swivel-Mount Tweeter
• Injection-molded polypropylene cone with rubber surrond
• 4 Ohms Impedance
• Sensitivity: 86 dB
• Mounting Depth: 2-3/8"

Kenwood KFC-1096PS

440W Peak (100W RMS) 4" Performance Series 2-Way Coaxial Car Speakers

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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440W Peak (100W RMS) 4" Performance Series 2-Way Coaxial Car Speakers

• 220 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 85 dB

shipping truck icon
FREE 2-day shipping to VA. Get it Tue, Oct. 3
install icon
Save $25 off Speaker Installation Accessories, Use Code: ACC25
found car based on your search
Fits multiple locations in your 1973 850
  • Dash Corner
  • Front Door
Dollar Icon

VIP Product Get $9.00 in rewards to spend later

empty

Was $110.00 Details
$90.00 /pair

In stock

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    FAQ for Speakers in 1973 850

    Q: Can I upgrade or change the Speakers in 1973 Fiat 850?

    A: Yes this page includes all the best Speakers that work in your 850.

    1973 Fiat 850

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