Garage
Shop

Infinity REF407F (INFSPKRF407FUS)

210W Peak (75W RMS) 4" Reference Series 2-Way Coaxial 3-ohm Speakers

Infinity
Shop all Infinity
Limited time!
highlight-star-icon

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Learn more about the ref407f
Gear Icon

Confirm fitment. Set your vehicle.

  • Mounting adapter brackets
  • Harness to avoid cutting vehicle wires
List price $139.95
Save $52.00
Thanks , You Pay:
-37%

$87.95

/pair  with warranty
Starting at $16/mo or 4 payments of $22 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one ref407f.

Set your vehicle or Return to product page
Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $8.80 in rewards to spend later
Quantity
In Stock
Brand new
NSP4 main
NVX NVX NSP4 300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers

(25)

$44.99 $59.99
Sponsored

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts
NVX - Worth the Envy - Direct to Consumer Car Audio

Choose from any of our many bundles that include this product for even more savings!

REF407F_ACC_KIT small

Infinity REF407F with Installation Accessories

210W Peak (70W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers + 4" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

(225)

$125.01

List price $211.66

Bundle Savings of $86.65

Current Promotions (8 offers)


This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

30% off


Priced separately $130 94

Promo Savings of $12 90

Total price:

$118 04

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

30% off


Priced separately $153 94

Promo Savings of $19 80

Total price:

$134 14

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

30% off


Priced separately $112 94

Promo Savings of $7 50

Total price:

$105 44

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

30% off


Priced separately $143 94

Promo Savings of $16 80

Total price:

$127 14

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

30% off


Priced separately $135 94

Promo Savings of $14 40

Total price:

$121 54

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

20% off


Priced separately $117 94

Promo Savings of $6 00

Total price:

$111 94

This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

20% off


Priced separately $99 93

Promo Savings of $2 40

Total price:

$97 53

Get 40% Off NVX SDSK2 Sound Dampening Speaker Kit with your Speaker purchase! Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

Infinity REF407F (INFSPKRF407FUS)

40% off


Priced separately $102 94

Promo Savings of $6 00

Total price:

$96 94

Description


Infinity brand icon

Authorized dealer


Infinity REF407F (INFSPKRF407FUS)

New Reference speakers are designed to deliver Infinity’s signature sound in more vehicles. They feature edge-driven textile tweeters for smooth, clear highs and the larger models offer an adjustable tweeter output level control for high-frequency optimization based on installation location or the listener's preference. Oversized Plus One woofers offer more surface area for higher bass output and enhanced midrange performance. Plus newly engineered baskets are optimized to fit most factory speaker locations. Available in a range of standard sizes, they’re the perfect upgrade from factory speakers.


Product Details:

  • 4" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 210 watts per pair / 105 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • 1/2" Textile Edge Driven Dome Tweeters
  • +3dB tweeter boost switch function
  • 3-ohm impedance combines with speaker wire for 4-ohm load
  • Features Plus One woofer cone architecture
  • Increased low-frequency output and accurate sound production
  • Optimized frame size featuring compact design
  • Top-mount Depth: 1-7/8"
  • Cutout Dimensions: 3-11/16"
  • Impedance: 3 ohm
  • Frequency Response: 75 - 21000 Hz
  • Sensitivity: 92 dB
  • Authorized Internet Dealer
  • MFR #: REF407F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair


Best selling similar products

JS40K small

Jensen JS40K

• 150 watts Peak Each, 35 watts RMS Each
• 1-3/8" PEI (Polyetherimide) Dome Midranges
• 1/2" PEI (Polyetherimide) Dome Tweeters
• Woven Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

$89.99

List price $107.99

DB402 small

Polk Audio DB402 (DB 402)

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(35)

$90.00

List price $99.99

TS-A1081F small

Pioneer TS-A1081F

• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(3)

$90.00

List price $110.00

OS-BMW4RV2 small

Metra OS-BMW4RV2

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Direct fit for

$191.99

List price $213.99

C1-400x small

JL Audio C1-400x

• 35 watts RMS Each
• 3/4" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84.5 dB

(8)

$94.99

List price $94.99

51KSC404 small

Kicker KSC4 (51KSC404)

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

(3)

$99.99

List price $119.99

R14X2 small

Rockford Fosgate Prime R14X2

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

(17)

$64.99

List price $64.99

46CSC44 small

Kicker CSC4 (46CSC44)

• 150 watts Peak Each, 50 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Steel mesh speaker grilles included
• Impedance: 4 ohm
• Sensitivity: 88 dB

(38)

$59.96

List price $84.99

C2-400X small

JL Audio C2-400x

• 35 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 84.5 dB

(9)

$164.99

List price $189.99

Specifications & Details


Speaker Specifications
Series
Reference Series
Priced Per
Pair
Number of Speakers
2
Speaker Size
4"
Design
2-way Coaxial
Tweeter Design
Edge Driven Dome
Tweeter Size
1/2"
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
105 watts
RMS Power Handling
35 watts
Total PEAK Per Pair/Set
210 watts
Total RMS Per Pair/Set
70 watts
Sensitivity
92 dB
Frequency Response
75 - 21000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
1-7/8"
Cutout Dimensions
3-11/16"
CTA-2031 Compliant
No
General specifications
Marine Certified
No
Hi-Res Certified
No
Color
Black
Illumination
None
Speaker Grilles
No
Includes Damping Kit
without Damping Kit
Compatible vehicle types
Car/Truck/SUV/Van
What is in the box?
Paperwork
User manual
WITB: Speakers
Foam Gasket
Speakers (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

REF407F

Weight:

2.68lbs

Internal SKU:

ref407f

Internal Product ID:

202376

Customer Ratings & Reviews


Infinity REF407F (INFSPKRF407FUS) thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


NSP4 main

NVX NSP4

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

(25)

$44.99

List price $59.99


8KDV small

Atrend 8KDV

Empty Dual 8" SPL Vented Enclosure for Kicker L7R and L7S Series Subwoofers

$117.00

List price $144.99

EN-DF10 small

DS18 EN-DF10

600W Peak (300W RMS) Loaded Single 10" Sealed Enclosure

$239.95

List price $239.95

REF607F small

Infinity REF607F (INFSPKRF607FUS)

360W Peak (120W RMS) 6.5" Reference Series 2-Way Coaxial 3-ohm Speakers

(24)

$95.95

List price $149.95

PR5012ISAM small

Infinity Primus PR5012IS (PR5012ISAM)

240W Peak (80W RMS) 5.25" Primus Series 2 Way Coaxial 2.7-ohm Speakers

$54.95

List price $119.95

AXFD-USB2 small

Axxess AXFD-USB2

Dual USB Port Replacement Panel for 2017-up Vehicles from Ford

$33.99

List price $37.99

UM Pro 20 small

Westone UM Pro 20

Signature Series Professional Monitor Earphones with Two-Way Dual Armature Drivers

(3)

$299.99

List price $349.99

Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.