Garage
Shop

See all parts that fit your 2004 Sprinter

Infinity Kappa 63.7i

6-1/2" 3-way Kappa Series Speakers (mounts in 6-1/2" and 6-3/4" locations) (KAPPA63.7I)

Infinity
Shop all Infinity
Product videos
highlight-star-icon

6-1/2" 3-Way Kappa Series Speakers • 75W RMS • 225W Peak • Edge-driven MMD-dome Midrange • EMIT Tweeter • Plus One Woven-Fiber-Glass Cone • SLI High Output Design • 2 Ohm Impedance

Learn more about the 637i

We apologize

This item has been discontinued


Loading...
FKB110 main

MB Quart FKB110

160W Peak (80W RMS) 4" Formula Series 2-Way 4-ohm Coaxial Car Speakers

-36.18%

$29.99

List price $46.99

Product Highlights


6-1/2" 3-Way Kappa Series Speakers • 75W RMS • 225W Peak • Edge-driven MMD-dome Midrange • EMIT Tweeter • Plus One Woven-Fiber-Glass Cone • SLI High Output Design • 2 Ohm Impedance

Description


Infinity brand icon

Authorized dealer

  • 6-1/2" Kappa Series 3-way Car Speakers
  • Power Handling:
    • Peak: 225 watts
    • RMS: 75 watts
  • Plus One woven-glass fiber cone woofer
  • Rubber surround
  • Edge-driven MMD-Dome midrange
  • EMIT Tweeters
  • Intermount III Woofer Mounting System
  • 2 ohm impedance
  • Outboard passive crossover with air core inductors and poly caps
  • Neodymium motor structure with integrated heatsink
  • Tweeter level adjustment: Just flick a switch to add 3dB to your highs!
  • 3-year SonicElectronix.com warranty

Priced Per Pair

Priced Per Pair

This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.


Loading...
CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99

Kenwood eXcelon KMM-X705

Single DIN Digital Media Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

6
-20.40%

$199.00

List price $250.00

KDC-X305 main

Kenwood eXcelon KDC-X305

Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

23
-17.08%

$199.00

List price $240.00

DEH-S7200BHS main

Pioneer DEH-S7200BHS

Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready

2
-10.72%

$249.99

List price $280.00

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

Limited time!
CAR1013 main

Jensen CAR1013

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto

5
-11.43%

$309.99

List price $349.99

KDC-BT782HD main

Kenwood KDC-BT782HD

Single DIN CD Receiver with Bluetooth, Built-in Alexa, and HD Radio Tuner (SiriusXM Ready)

5
-18.89%

$219.00

List price $270.00

KDC-X705 main

Kenwood eXcelon KDC-X705

Single DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

4
-18.21%

$229.00

List price $280.00


Best selling similar products

46CSC654 small

Kicker CSC65 (46CSC654)

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(122)

$79.96

List price $119.99

Club 622 small

JBL Club 622

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters with 0dB or -3dB adjustable output levels
• UV-Resistant Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

(5)

$99.95

List price $139.95

43DSC6504 small

Kicker DSC650 (43DSC6504)

• 240 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(28)

$84.99

List price $94.99

DB652 small

Polk Audio DB652 (DB 652)

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(12)

$109.00

List price $119.99

NSP65 small

NVX NSP65

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.40"

(93)

$69.99

List price $107.99

XED62 small

Cerwin-Vega XED62

• 300 watts Peak Each, 35 watts RMS Each
• 3/4" Piezo Metal Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

(15)

$49.99

List price $59.99

SXE-1726S small

Alpine SXE-1726S

• 220 watts Peak Each, 40 watts RMS Each
• 1" Carbon Graphite Dome tweeters
• Nano Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(13)

$42.99

List price $54.99

R165X3 small

Rockford Fosgate Prime R165X3

• 90 watts Peak Each, 45 watts RMS Each
• 1/2" Piezo pole-mounted Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

(154)

$79.99

List price $79.99

VSP65 small

NVX VSP65

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.51"

(64)

$109.99

List price $129.99

KFC-X175 small

Kenwood eXcelon KFC-X175

• 240 watts Peak Each, 80 watts RMS Each
• 1" Soft Dome Tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

$111.50

List price $180.00

Specifications & Details


Speaker Specifications
Speaker Size
6-1/2" (also mounts in 6-3/4" w/ included brackets)
Design
3-way Coaxial
Tweeter Design
Dome
Tweeter Composition
M.M.D. (Metal Matrix Diaphragm)
Woofer Composition
Woven Glass Fiber
Woofer Surround
Rubber
Peak Power Handling
225 watts
RMS Power Handling
75 watts
Sensitivity
95 dB
Frequency Response
45 - 25000 Hz
Impedance (Per Voice Coil)
2 ohm
Top-Mount Depth (Mounting Depth)
2-/16"
Cutout Dimensions
5" x 5" 

Item Details


Manufacturer:

Model Number:

63.7i

Weight:

6.00lbs

Internal SKU:

637i

Internal Product ID:

5154

Product and How-to Videos


  • How To Test Speaker Polarity | Tips & Demo | Car Audio 101
  • Replace your Car Speakers and Upgrade to Better Sound | Sonic Electronix
  • Harman International: The Pursuit of Great Sound

Customer Ratings & Reviews


Infinity Kappa 63.7i thumbnail image

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



Durability
5
Value
4.4
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Components?

If you are looking for a loud clean sound as close to having components with out actually having components these are the speakers for you. They come with a true crossover so the woofer and the two tweeters are on separate voice coils. Easy to install comes with everything you need.

By Chasten on January 3, 2008

7 found this helpful


Very good drivers

I have these in the back of my car in an infinite enclosure. Because of the enclosure type I run them from 120 Hz. They indeed easily can take 75W and the sound quality is very good.

By Martijn on October 25, 2007

8 found this helpful


Amazing

I love these speakers the highs are crisp and the actually put out good bass for 6 1/2" speakers. Blow my Polk db out of the park!!!

By Bryce on December 8, 2005

7 found this helpful




FD1432B small

Scosche FD1432B / FD1432

Single DIN and Double DIN Installation Kit for Select 2007-up Ford, Lincoln, and Mercury Vehicles

(1)

$12.99

List price $19.99

KCA-SC100 small

Alpine KCA-SC100 SIRIUS Adapter

SiriusConnect Adapter - Control a SIRIUS plug-and-play radio or universal tuner from your Alpine stereo

(1)

$64.99

List price $74.99

CDE-HD138BT small

Alpine CDE-HD138BT

In-Dash CD/MP3/USB Car Stereo Receiver w/ Parrot Bluetooth, HD Radio, iPod Control and Front Aux

(2)

$199.99

List price $320.00

ME-80 small

Boss ME-80

Guitar Multiple Effects Stomp Pedal w/ Phrase Loop, Expression Pedal, EZ TONE & 36 Patches

(1)

$209.00

List price $418.50

SAC653 small

Scosche SAC653

Speaker Adaptors for select 1995-2005 Neon

(3)

$9.99

List price $10.95

ZX350.4 small

Kicker ZX350.4

350 watts, ZX Series 4-Channel Amplifier

(9)

$219.99

List price $349.99

SPR-69LP small

Alpine SPR-69LP

Type-R 6" x 9" 2-way Speakers

(7)

$74.99

List price $179.99

P1-2050.1 small

Crunch P1-2050.1

2000W Max Monoblock Power One Series Class AB Car Amplifier

(6)

$99.99

List price $379.99

SK552 small

Boss SK552

250W Phantom Skull Series 5-1/4" 2-Way Full Range Speaker System with Skull Tweeter Cover

(4)

$17.99

List price $39.99

Related Searches


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

2004 Dodge Sprinter

1992 GMC K2500

1982 Volvo 244

2019 Subaru WRX

2010 Chrysler 300

2011 Dodge Durango

2016 BMW 3 Series

2013 Ford Edge

1970 Mazda 1500

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.