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2005 Infiniti Q45

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Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Independance Day Sale

Speakers & Speaker Installation for 2005 Infiniti Q45

Find speakers to upgrade your sound and fit in the factory speaker location for your Q45.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

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Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

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Speaker Size
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.
Design
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.
RMS Power Handling
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
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.
Sensitivity
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".
Impedance (Per Voice Coil)
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.
Shallow Mount Installation
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.
Tweeter Design
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.
Series
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.
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JVC CS-DR1721 with Sound Damping

600W Peak (100W RMS) 6.75” DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

CSDR1721_SDBSK2 big
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JVC CS-DR1721 with Sound Damping

600W Peak (100W RMS) 6.75” DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Drive tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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52
List price $137.74
-17% $113.99

In stock

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• 300 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Drive tweeters
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Limited time!

NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP65_SDBSK2 big
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NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 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"

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141
List price $126.73
-33% $84.98

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• 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"

Rockford Fosgate Prime R1675X2 with Sound Damping

180W Peak (90W RMS) 6.75" Prime Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

R1675X2_SDBSK2 big
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Rockford Fosgate Prime R1675X2 with Sound Damping

180W Peak (90W RMS) 6.75" Prime Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

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

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104
List price $98.73
$94.98

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

Hertz SV 165 NEO with Sound Damping

800W Peak (300W RMS) 6.5" SPL Show Series 4-ohms Midrange Car Speakers + NVX SDSK2 Sound Damping

SV165NEO_SDSK2 big
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Hertz SV 165 NEO with Sound Damping

800W Peak (300W RMS) 6.5" SPL Show Series 4-ohms Midrange Car Speakers + NVX SDSK2 Sound Damping

• 400 watts Peak Each, 150 watts RMS Each
• 1-1/2" Dome Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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49
List price $548.74
-15% $464.98

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• 400 watts Peak Each, 150 watts RMS Each
• 1-1/2" Dome Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

Diamond Audio H65S with Speaker Installation Kit

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

HX653DI, XBAF65, SDSK2, SDRLR1, BTK106 big
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Diamond Audio H65S with Speaker Installation Kit

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System 6.5" Speaker Baffles, Sound Dampening, Roller and Panel Removal Kit

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

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  • Front Door
  • Rear Door
257
$1,363.52

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

Diamond Audio HX653DI with Sound Damping

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

HX653DI_SDSK2 big
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Diamond Audio HX653DI with Sound Damping

300W Peak (150W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

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48
$1,334.98

In stock

Only 1 Left!

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

Hertz CK 165F with Sound Damping

270W Peak (90W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system + NVX SDSK2 Sound Damping

CK165F_SDSK2 big
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Hertz CK 165F with Sound Damping

270W Peak (90W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system + NVX SDSK2 Sound Damping

• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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List price $498.74
-17% $414.98

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Ships in 10-14 days

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• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Diamond Audio HX653DI (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

HX653DI_2 big
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Diamond Audio HX653DI (2-Pairs, 4-Total)

600W Peak (300W RMS) 6.5" HEX Diamante Italia Series 3-Way Component Speaker System (2-Pairs)

• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

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$2,639.98

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Composite Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 88.3 dB

Alpine HDZ-65CS (2-Pairs, 4-Total)

1200W Peak (400W RMS) 6.5” Status Series 2-way Component Speaker System (2-Pairs)

HDZ65CS_2 big
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Alpine HDZ-65CS (2-Pairs, 4-Total)

1200W Peak (400W RMS) 6.5” Status Series 2-way Component Speaker System (2-Pairs)

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $2160.00
-33% $1,439.90

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Ships in 10-14 days

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz CK 165F (2-Pairs, 4-Total)

540W Peak (180W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system (2-Pairs)

CK165F_2 big
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Hertz CK 165F (2-Pairs, 4-Total)

540W Peak (180W RMS) 6.5" Cento Series 2-Way Flat-profile Component Speaker system (2-Pairs)

• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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List price $960.00
-17% $799.98

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Ships in 10-14 days

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• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Alpine HDZ-65CS with Accessories

300W Peak (100W RMS) Status Series 6.5” 2-way Component System

HDZ-65CS, XBAF65, SDSK2, SDRLR1, BTK106 big
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Alpine HDZ-65CS with Accessories

300W Peak (100W RMS) Status Series 6.5” 2-way Component System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance:
• Sensitivity: 88 dB

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Fits multiple locations in your Q45
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  • Rear Door
257
List price $1167.71
-35% $763.31

Available

Ships in 10-14 days

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance:
• Sensitivity: 88 dB

Hertz CK 165F with Speaker Installation Kit

6.5" Cento Series 2-Way Flat-profile Component Speaker system

CK 165F, SDSK2, FRING65 big
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Hertz CK 165F with Speaker Installation Kit

6.5" Cento Series 2-Way Flat-profile Component Speaker system

• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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found car based on your search
Fits multiple locations in your Q45
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  • Rear Door
92
List price $518.73
-23% $399.99 /set

In stock.

Add to Cart

• 135 Watts Max Each, 45 Watts RMS Each
•Semi Pressed Paper-Mica cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Alpine HDZ-65CS with Sound Damping

600W Peak (200W RMS) 6.5” Status Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

HDZ65CS_SDSK2 big
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Alpine HDZ-65CS with Sound Damping

600W Peak (200W RMS) 6.5” Status Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Save 15% Off Package Deals at Checkout!
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48
List price $1098.74
-33% $734.94

Available

Ships in 10-14 days

Add to Cart

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Rockford Fosgate P1675 (Open Box, Great)

240W Peak (120W RMS) 6.75” Punch Series 3 Way Coaxial 4-ohm Car Speakers

P1675 big
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Rockford Fosgate P1675 (Open Box, Great)

240W Peak (120W RMS) 6.75” Punch Series 3 Way Coaxial 4-ohm Car Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Fits multiple locations in your Q45
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48
List price $109.99
-15% $93.49 /pair

In stock

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Rockford Fosgate R1675X2 (Open Box, Great)

180W Peak (90W RMS) 6.75" Prime Series 2 Way Coaxial 4-ohm Car Speakers

R1675X2 big
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Rockford Fosgate R1675X2 (Open Box, Great)

180W Peak (90W RMS) 6.75" Prime Series 2 Way Coaxial 4-ohm Car Speakers

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

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56
List price $79.99
-15% $67.99 /pair

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Rockford Fosgate Power T1675-S (Open Box, Great)

400W Peak (200W RMS) 6.75" Power Series 2-way 4-ohm Component Speaker System

T1675-S big
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Rockford Fosgate Power T1675-S (Open Box, Great)

400W Peak (200W RMS) 6.75" Power Series 2-way 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1" Cloth Dome tweeters with integral suspension
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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List price $359.99
-15% $305.99 /set

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Lowest price in 30 days

NVX VSP65

600W Peak (200W RMS) 6.5" V-Series 2 Way Coaxial Car Speakers

VSP65 big Out of stock
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NVX VSP65

600W Peak (200W RMS) 6.5" V-Series 2 Way Coaxial Car Speakers

• 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"

2+ offers available
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List price $119.99
-17% $99.99 /pair
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• 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"

Limited time!

Rockford Fosgate Punch P1 P1675-S

240W Peak (120W RMS) 6.75" Punch Series 2 Way Component 4-ohm Speakers

P1675-S big Out of stock
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Rockford Fosgate Punch P1 P1675-S

240W Peak (120W RMS) 6.75" Punch Series 2 Way Component 4-ohm Speakers

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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$159.99 /set
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• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Limited time!

Rockford Fosgate Prime R1675-S

160W Peak (80W RMS) 6.75” Prime Series 2 Way Component 4-ohm Speakers

R1675-S big Out of stock
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Rockford Fosgate Prime R1675-S

160W Peak (80W RMS) 6.75” Prime Series 2 Way Component 4-ohm Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 1/2" Mylar Balanced Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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16
$79.99 /set
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• 80 watts Peak Each, 40 watts RMS Each
• 1/2" Mylar Balanced Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Limited time!

Kicker KSC67 (51KSC6704)

400W Peak (200W RMS) 6.75" KS Series 2 Way Coaxial 4-ohm Speakers

51KSC6704 big Out of stock
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Kicker KSC67 (51KSC6704)

400W Peak (200W RMS) 6.75" KS Series 2 Way Coaxial 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
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found car based on your search
Fits multiple locations in your Q45
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  • Rear Door
8
List price $149.99
-13% $129.99 /pair
Add to Cart

• 200 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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    Q: Can I upgrade or change the Speakers in 2005 Infiniti Q45?

    A: Yes this page includes all the best Speakers that work in your Q45.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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    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.

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