SoundQubed HDX Series 6.5" Coaxial 2-way Speakers (pair)
Key features
- Speaker size: 6.5″
- RMS power per speaker: 80 W
- Speaker impedance: 4.0 ohms
- Mounting depth: 2.36 in / 60 mm
- Frequency response: 40 Hz–20 kHz
- Sensitivity (1 W / 1 m): 89 dB
SoundQubed HDX Series 6.5" Coaxial 2-way Speakers (pair) is backordered and will ship as soon as it is back in stock.
SoundQubed HDX Series 6.5" Coaxial 2-way Speakers (pair) is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Bring clear, full-range sound to a 6.5-inch speaker location with the SoundQubed HDX-CX65 2-way coaxial speakers. Each speaker combines a glass fiber woofer cone with an integrated neodymium PEI tweeter, and the pair includes grilles.
Key Features & Benefits
- Two-way coaxial design: The built-in tweeter provides high-frequency sound without a separate tweeter installation.
- Glass fiber cone and rubber surround: These woofer materials support controlled midrange reproduction.
- 80W RMS power handling: The 4-ohm speakers can be paired with an amplifier suited to their power rating.
- 60 Hz recommended hi-pass crossover: Use a high-pass setting to limit the low frequencies sent to the speakers.
- Pair with grilles: Two speakers and two grilles are included for a finished installation.
Technical Specifications
| Specification | Value |
|---|---|
| Nominal Diameter | 6.5" / 165mm |
| Nominal Impedance | 4 Ohms |
| RMS Power Handling | 80W |
| MAX Power Handling | 240W |
| Sensitivity (1W/1m) | 89 dB |
| Frequency Response | 40 Hz – 20 kHz |
| Recommended Hi-Pass Crossover | 60 Hz |
| Number of Ways | 2-Way |
| Sold In | Pair |
| Grill Included | Yes |
Woofer Specifications
| Voice Coil Diameter | 1" / 25.5mm |
| Voice Coil Former Material | KSV |
| Winding Material | EISV |
| Cone Material | Glass Fiber |
| Surround Material | Rubber |
| Basket Material | Steel |
| Basket Color/Finish | Black Matte |
| Magnet Material | Barium Ferrite |
| Magnet Weight | 410g |
Thiele & Small Parameters
| Equivalent Volume (Vas) | 10.84L / 0.382ft³ |
| Excursion One Way (Xmax) | 2.7mm |
| Free Air Resonance (Fs) | 64 Hz |
| Mechanical Factor (Qms) | 9.44 |
| Electrical Factor (Qes) | 0.79 |
| Total Factor (Qts) | 0.73 |
| Mechanical Mass (Mms) | 13.72g |
| Mechanical Compliance (Cms) | 444mm/N |
| BL Factor (BL) | 5.1 |
| Voice Coil Inductance (Le) | 0.228mH |
| Cone Area (Sd) | 131cm² |
| DC Resistance (Re) | 3.5 Ohms |
| Mechanical Mass w/o Air (Mmd) | 12g |
Tweeter Specifications
| Nominal Diameter | 1" / 25.4mm |
| Voice Coil Diameter | 0.8" / 20.4mm |
| VC Former Material | KSV |
| Winding Material | EISVM |
| Diaphragm Material | PEI |
| Magnet Material | Neodymium |
| Magnet Weight | 8.5g |
Speaker Measurements
| Overall Diameter (With Grill) | 7.26" / 184.5mm |
| Overall Depth (With Grill) | 3" / 76.5mm |
| Overall Diameter (Without Grill) | 6.51" / 165.5mm |
| Overall Depth (Without Grill) | 2.88" / 73.3mm |
| Front Mount Baffle Cutout | 5.55" / 141mm |
| Mounting Depth | 2.36" / 60mm |
| Motor Diameter | 3.70" / 94mm |
Why Choose This Product?
The HDX-CX65 brings woofer and tweeter into one coaxial speaker, making it a practical option when you want both in a single driver. Its 4-ohm impedance and 80W RMS rating help you compare it with your system’s amplifier, while the included grilles complete the pair.
It can also be used in a SoundQubed HDX system alongside an HDX subwoofer. For a motorcycle bagger audio build, the product information identifies fairing and saddlebag locations that accept 6.5-inch drivers as potential applications.
Installation & Compatibility Notes
- Check the opening: Confirm your location accepts a 5.55" / 141mm baffle cutout and 2.36" / 60mm mounting depth.
- Allow for overall dimensions: The speaker measures 6.51" / 165.5mm across without the grille and 7.26" / 184.5mm with it. Check panel clearance, including depth.
- Set the high-pass filter: The recommended crossover is 60 Hz; the installation guidance suggests setting the amplifier HPF at 60–80 Hz.
- Match your amplifier: Listed SoundQubed examples include the S4-100 (100W x4), Q4-150ABv2 (150W x4), and Q4-2000 (325W x4). The speakers are rated at 80W RMS / 240W maximum at 4 ohms.
Frequently Asked Questions
Are the SoundQubed HDX-CX65 speakers sold individually?
No. They are sold as a pair, with two grilles included.
Do I need to install a separate tweeter or passive crossover?
No separate tweeter or passive crossover is required. Each speaker has an integrated 1" / 25.4mm neodymium PEI tweeter.
Will these fit my vehicle or motorcycle speaker location?
Check the mounting opening and available depth against the listed 5.55" / 141mm cutout and 2.36" / 60mm mounting depth. For a fairing or saddlebag installation, confirm the dimensions for your specific location before purchasing.
What amplifier power and crossover setting should I consider?
Each speaker is rated for 80W RMS / 240W maximum at 4 ohms. The recommended hi-pass crossover is 60 Hz; installation guidance suggests an HPF setting of 60–80 Hz.
Explore More
Shop SoundQubed products at 12 Volt Outlet. Want to learn more about SoundQubed? Explore our SoundQubed brand profile.
| Specification | Value |
|---|---|
| Voice Coil Diameter | 1" / 25.5mm |
| Voice Coil Former Material | KSV |
| Winding Material | EISV |
| Cone Material | Glass Fiber |
| Surround Material | Rubber |
| Basket Material | Steel |
| Basket Color/Finish | Black Matte |
| Magnet Material | Barium Ferrite |
| Magnet Weight | 410g |
| Specification | Value |
|---|---|
| Nominal Diameter | 1" / 25.4mm |
| Voice Coil Diameter | 0.8" / 20.4mm |
| VC Former Material | KSV |
| Winding Material | EISVM |
| Diaphragm Material | PEI |
| Magnet Material | Neodymium |
| Magnet Weight | 8.5g |
