QUANTUM AUDIO QP690 Grill Speaker Only/new 6X9 NEW/1

( Brand: Quantum Audio ), ( Manufacturer Part Number: QP690 ), ( Type: 3-way Speaker ), ( Speaker Size: 6x9in. ), ( Country Of Origin: China )

Review QUANTUM AUDIO 6x9 Grill New/1 Speaker Only/new-not Used

Introducing the Quantum Audio QP690 6x9 Grille Speaker, a high-performance audio solution for those seeking an upgrade for their car's sound system. This speaker comes as a single unit, perfect for replacing an existing speaker or adding a new one to your vehicle.

The QP690 speaker is a 6x9 inch model, offering a larger diaphragm area compared to standard 6.5 inch speakers. This larger surface allows for more sound displacement, resulting in improved bass response and increased overall sound quality.

Under the sleek and modern grille design lies a powerful neodymium magnet structure. Neodymium magnets are known for their strength and efficiency, enabling the speaker to produce clear and accurate sound with impressive depth and clarity. The magnet also ensures that the speaker can handle higher power levels, allowing for better sound quality even at higher volumes.

The speaker's cone is made of polypropylene, a material known for its durability and excellent sonic characteristics. Polypropylene cones are rigid and lightweight, allowing for quick response times and accurate sound reproduction. The cone is also treated with a rubberized coating, providing protection against moisture and ensuring that the speaker can last for years to come.

The QP690 speaker features a vented voice coil design, which helps to reduce power compression and improve overall sound quality. The voice coil is also made of copper, a material known for its excellent conductivity, ensuring that power is efficiently transferred to the speaker's cone for optimal performance.

The speaker's frequency response ranges from 35Hz to 20kHz, making it suitable for a wide range of music genres. Whether you're a fan of heavy basslines or crystal-clear high notes, the Quantum Audio QP690 speaker is sure to deliver an exceptional listening experience.

Installation is a breeze with the included mounting hardware and detailed instructions. The speaker's grille is also removable, allowing for customization and personalization of your car's audio system.

In summary, the Quantum Audio QP690 6x9 Grille Speaker is a powerful and versatile audio solution for car enthusiasts seeking to enhance their vehicle's sound system. With its modern design, high-quality materials, and impressive sound performance, this speaker is sure to exceed your expectations.

The Quantum Audio QP690 6x9 car speaker is a popular choice for those seeking high-performance audio for their vehicles. Here are some pros and cons to help you make an informed decision about purchasing this speaker.

1. Power Handling: The QP690 speaker can handle a significant amount of power, making it suitable for those who want a powerful audio system in their car.

2. Sensitivity: With a high sensitivity rating, this speaker can produce a good volume level even with a modest car audio system.

3. Frequency Response: The speaker has a wide frequency response range, which helps to produce clear and accurate sound across various genres of music.

4. Durability: Quantum Audio speakers are known for their durability, and the QP690 is no exception. It is built to withstand the harsh conditions of a car environment.

5. Affordability: Compared to some other high-performance car speakers, the QP690 is relatively affordable, making it an excellent option for those on a budget.

1. Size: The 6x9 size of this speaker may not fit in all cars or in all locations in the vehicle where a speaker of that size is desired.

2. Mounting Depth: The speaker requires a relatively deep mounting depth, which may not be feasible in all vehicles.

3. Bass Response: While the QP690 produces good mid-range and high-frequency sounds, it may not deliver the same level of bass response as some other car speakers in its class.

The Quantum Audio QP690 6x9 car speaker offers excellent power handling, sensitivity, frequency response, and durability at an affordable price. However, its size and mounting depth requirements may limit its applicability in some vehicles. If you are looking for a high-performance car speaker that delivers clear and accurate sound across various genres of music and can handle a good amount of power, then the QP690 is a worthwhile consideration.

If you are in the market for a new 6x9 car speaker and are looking for high-performance audio, then the Quantum Audio QP690 is a solid choice. Its affordable price point, excellent power handling, and wide frequency response make it a great option for those who want to upgrade their car audio system without breaking the bank. However, be sure to measure your vehicle's available space for the speaker and confirm the mounting depth requirements before making a purchase.

Details:

You are purchasing 1 PC. QUANTUM AUDIO QP690 6X9 WITH GRILL NEW/1 SPEAKER 1 ONLY/NEW-NOT USED/NEW- OLDER INVENTORY/PRICED FOR CLEARANCE/ E exactly as described and shown/LAST ONE. Item is NEW-OLDER INVENTORY,exactly as described and shown.

part #: qp690 price

• $42.85

specifications classicradiospeakers:

• brand: Quantum Audio
• mpn: Qp690
• type: 3-way Speaker
• speaker size: 6x9in.
• country of origin: China

shipping classicradiospeakers:

• class: Standard
• cost: $18.90
• transit: 3-7 Days
• carrier: USPS
• service: USPS Ground Advantage
• type: Calculated

general classicradiospeakers:

• Vehicle Electronics GPS > Car Audio > Car Speakers Speaker Systems
• condition: Used

offer classicradiospeakers:

• quantity: 1
• options: Ship-to-home
• started: April 15, 2026
• availability: In Stock
• sold: 0

seller classicradiospeakers:

• rating: 99.7%
• city: Waukegan, Illinois
• # reviews: 846

payments classicradiospeakers:

• wallet: Paypal
• credit card: Diners-club
• other

returns classicradiospeakers:

• policy: No Returns

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