Description
Diamond Audio DMDX 6.5" Concentric Coaxial Speakers
The Diamond Audio DMDX 6.5" Concentric Coaxial Speakers are designed to deliver high-fidelity sound in a compact, installation-friendly format. Engineered for drivers seeking an upgrade over factory audio, the DMDX series balances clean power handling, smooth frequency response, and efficient output in a 6.5-inch platform.
Featuring a concentric coaxial design, these speakers provide detailed high frequencies, articulate midrange, and controlled low-frequency response—making them an ideal solution for OEM replacement or entry-level aftermarket systems.
Performance Highlights
Power Handling
Rated at 45 watts RMS with 135 watts maximum power handling for reliable everyday performance.
Full-Range Response
60Hz–20kHz frequency range supports balanced reproduction across lows, mids, and highs.
Efficient Sensitivity
87dB sensitivity (1W/1M) allows strong output with factory head units or external amplification.
4-Ohm Design
Nominal 4-ohm impedance ensures compatibility with standard automotive audio systems.
Installation & Fitment
Built in a 6.5-inch (165mm) format, the DMDX is well-suited for factory speaker replacement in compatible vehicles. Its shallow mounting depth supports installation in tighter door or rear deck locations.
Mounting Depth
1.77" (45mm)
Cut-Out Diameter
4.84" (123mm)
Overall Diameter
6.26" (159mm)
Overall Height
2.13" (54.1mm)
Specifications
| Nominal Diameter | 6.5" (165mm) |
| Power Handling (RMS) | 45 Watts |
| Power Handling (Max) | 135 Watts |
| Frequency Response | 60Hz – 20kHz |
| Sensitivity (1W/1M) | 87dB |
| Nominal Impedance | 4 Ohms |
| Free-Air Resonance (Fs) | 70Hz |
| Mounting Depth | 1.77" (45mm) |
| Cut-Out Diameter | 4.84" (123mm) |
| Overall Diameter | 6.26" (159mm) |
| Overall Height | 2.13" (54.1mm) |
Used Frequently Asked Questions
- What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
- What is the warranty? All of our used items come with a 90-day warranty.
- What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
- Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
- Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
- Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
- Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
- Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.