Garage
Shop

See all parts that fit your 2007 335xi

Infinity REF687F (INFSPKRF687FUS)

360W Peak (120W RMS) 6x8" Reference Series 2-Way Coaxial 3-ohm Speakers

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

• 180 watts Peak Each, 60 watts RMS Each
• 1" Textile Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Learn more about the ref687f
No Fit Icon

Doesn't fit your 2007 335xi

Similar items | Update vehicle | Vehicle store
List price $159.95
Save $56.00
Thanks , You Pay:
-35%

$103.95

/pair  with warranty
Starting at $10/mo or 4 payments of $26 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $10.40 in rewards to spend later
Quantity
In Stock
Brand new
NSP68 main
NVX NVX NSP68 540W Peak (180W RMS) 6x8" N-Series 2 Way Coaxial Car Speakers

(59)

$79.99 $95.99
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!

REF687F_ACC_KIT small

Infinity REF687F with Installation Accessories

360W Peak (120W RMS) 6x8" Reference Series 2-way 4-ohm Coaxial Speakers + 6x8" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

(234)

$148.01

List price $242.66

Bundle Savings of $94.65


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

59
-19.05%

$339.99

List price $420.00

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

39
-33.50%

$399.00

List price $600.00

Limited time!
iLX-W670-M main

Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

126
-30.01%

$349.95

List price $500.00

Limited time!
DMH-241EX main

Pioneer DMH-241EX

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and Built-in Alexa

22
-35.00%

$194.99

List price $300.00

Limited time!
XAV-AX3200 main

Sony XAV-AX3200

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, WebLink, Apple CarPlay, and Android Auto (SiriusXM Ready)

15
-25.50%

$298.00

List price $399.99

XAV-AX3200, BLPCAM2 main

Sony XAV-AX3200 with License Plate Camera

6.95" Double-DIN Touchscreen Digital Multimedia Receiver with License Plate Backup Camera

72
-32.40%

$337.99

List price $499.98

Limited time!
DMX809S main

Kenwood eXcelon DMX809S

6.8” Double DIN Digital Multimedia Touchscreen Bluetooth Receiver with Wireless Apple CarPlay and Android Auto (SiriusXM Ready)

11
-37.63%

$499.00

List price $800.00

Limited time!
DMH-470EX main

Pioneer DMH-470EX

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and WebLink

-25.00%

$179.99

List price $239.99

Limited time!
DMX4710S main

Kenwood DMX4710S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM & iDatalink Maestro Ready)

18
-37.71%

$299.00

List price $480.00

Current Promotions (12 offers)


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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $146 94

Promo Savings of $12 90

Total price:

$134 04

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $169 94

Promo Savings of $19 80

Total price:

$150 14

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $160 94

Promo Savings of $17 10

Total price:

$143 84

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $159 94

Promo Savings of $16 80

Total price:

$143 14

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $153 94

Promo Savings of $15 00

Total price:

$138 94

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

Infinity REF687F (INFSPKRF687FUS)

20% off


Priced separately $133 94

Promo Savings of $6 00

Total price:

$127 94

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $138 94

Promo Savings of $10 50

Total price:

$128 44

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

Infinity REF687F (INFSPKRF687FUS)

50% off


Priced separately $138 94

Promo Savings of $17 50

Total price:

$121 44

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

Infinity REF687F (INFSPKRF687FUS)

30% off


Priced separately $132 94

Promo Savings of $8 70

Total price:

$124 24

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

Infinity REF687F (INFSPKRF687FUS)

20% off


Priced separately $119 94

Promo Savings of $3 20

Total price:

$116 74

Experience Better Sound With Easy to Install Speaker Baffles. This offer cannot be combined with any other coupons or offers.

Infinity REF687F (INFSPKRF687FUS)

20% off


Priced separately $125 94

Promo Savings of $4 40

Total price:

$121 54

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 REF687F (INFSPKRF687FUS)

40% off


Priced separately $118 94

Promo Savings of $6 00

Total price:

$112 94

Description


Infinity brand icon

Authorized dealer


Infinity REF687F (INFSPKRF687FUS)

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, their 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:

  • 6" x 8" Reference Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 360 watts per pair / 180 watts each
    • RMS: 120 watts per pair / 60 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • 1" 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: 2-7/16"
  • Cutout Dimensions: 7-1/4 x 5 
  • Impedance: 3 ohm
  • Frequency Response: 49 - 21000 Hz
  • Sensitivity: 93 dB
  • Authorized Internet Dealer
  • MFR #: REF687F
  • 1-year Manufacturer's Warranty

  • Priced Per Pair


Best selling similar products

JS68K small

Jensen JS68K

• 250 watts Peak Each, 60 watts RMS Each
• 1-3/16" PEI (Polyetherimide) Dome tweeters
• 2-1/4" PEI (Polyetherimide) Dome midranges
• Woven Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

$139.99

List price $167.99

C1-570x small

JL Audio C1-570x

• 50 watts RMS Each
• 3/4" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

(4)

$129.99

List price $129.99

V68 small

Cerwin-Vega V68

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

(29)

$139.99

List price $139.99

P1683 small

Rockford Fosgate Punch P1 P1683

• 130 watts Peak Each, 65 watts RMS Each
• 3/4" tweeter and 1/2" super tweeter PEI (Polyetherimide) Dome tweeters
• Injection-molded Mineral-filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(86)

$109.99

List price $109.99

PK1-168 small

MB Quart PK1-168

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters
• Tunable waveguide tweeter housing
• Pop Paper-Mica Blend cone material
• Curvilinear cone design geometry
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

$129.99

List price $189.99

VTEK-57Xi small

Earthquake Sound VTEK-57Xi

• 400 watts RMS Each
• 3/4" Silk Dome swiveling tweeters
• Glass Fiber cone material
• Impedance: 2 ohm
• Sensitivity: 90 dB

$129.99

List price $169.00

NSP68 small

NVX NSP68

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.63"

(59)

$79.99

List price $95.99

VSP68 small

NVX VSP68

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.59"

(46)

$99.99

List price $119.99

46CSC684 small

Kicker CSC68 (46CSC684)

• 225 watts Peak Each, 75 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters with neodymium magnets
• Polypropylene cone material with EVC™ (Extended Voice Coil) technology
• Impedance: 4 ohm
• Sensitivity: 90 dB

(23)

$79.96

List price $119.99

H7683 small

Cerwin Vega H7683

• 360 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

(50)

$79.99

List price $95.99

Specifications & Details


Speaker Specifications
Series
Reference Series
Priced Per
Pair
Number of Speakers
2
Speaker Size
6" x 8"
Design
2-way Coaxial
Tweeter Design
Edge Driven Dome
Tweeter Size
1"
Tweeter Composition
Textile
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
180 watts
RMS Power Handling
60 watts
Total PEAK Per Pair/Set
360 watts
Total RMS Per Pair/Set
120 watts
Sensitivity
93 dB
Frequency Response
49 - 21000 Hz
Impedance (Per Voice Coil)
3 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
2-7/16"
Cutout Dimensions
7-1/4 x 5 
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:

REF687F

Weight:

4.10lbs

Internal SKU:

ref687f

Internal Product ID:

202381

Customer Ratings & Reviews


Infinity REF687F (INFSPKRF687FUS) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Sound Wonderful. Excellence as expected from infinity. Got mine on a SKAR 75.4 amp. They rock. Solid bass and crystal clear highs.

Best sounding 6X8's I've ever owned. I have them paired two a Kenwood excelon 795bh receiver and there very loud. Very punchy in the midrange and exceptional Bass. Infinity The name says it All.....

By Shannon on May 23, 2025 Checkmark Icon Verified purchase
2003 Ford F-150

1 found this helpful




NSP68 main

NVX NSP68

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.63"

(59)

$79.99

List price $95.99


TS-D502P small

Pioneer Premier TS-D502P Open Box

Open Box 5-1/4" 2-way D-Series Speakers

$54.99

List price $129.99

F250X00C20-T45 small

MTX Audio Thunderform F250X00C20-T45 (Charcoal, Loaded)

Ford F-250 Super Cab 2000-2007, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

$392.99

List price $499.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2007 BMW 335xi

2022 Lexus ES250

1972 Ford Maverick

1982 Chevrolet Corvette

2021 Ford Edge

2002 Oldsmobile Bravada

1996 Ford Mustang

1968 Ford Mustang

2007 Kia Spectra

1998 Oldsmobile Cutlass

Vehicle
Store
Delete

2014 Harley Davidson FXDC Super Glide Custom

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
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.