Description
Diamond Audio DMDX 6x8" Concentric Coaxial Speakers
The Diamond Audio DMDX 6x8" Concentric Coaxial Speakers are engineered to deliver high-fidelity sound in an affordable, OEM-upgrade-friendly platform. Designed for drivers who want more clarity and output than factory speakers can provide, the DMDX series balances clean power handling, full-range response, and efficient operation in a direct-fit 6x8-inch format.
With a concentric coaxial design and carefully matched performance specifications, these speakers provide detailed highs, articulate midrange, and controlled low-frequency response—making them an ideal everyday upgrade.
Performance Highlights
Power Handling
Rated at 50 watts RMS with 150 watts maximum power handling for reliable daily performance and dynamic peaks.
Full-Range Frequency Response
60Hz–20kHz frequency range supports balanced sound reproduction across lows, mids, and highs.
Efficient Output
85dB sensitivity (1W/1M) allows strong performance when powered by factory head units or aftermarket amplifiers.
System Compatibility
4-ohm nominal impedance ensures compatibility with standard automotive audio systems.
Installation & Fitment
Built in a 6x8-inch (152x203mm) format, the DMDX is designed for direct replacement in compatible factory speaker locations. Its moderate mounting depth and precise cut-out dimensions help simplify installation in a wide range of vehicles.
Mounting Depth
2.28" (58mm)
Cut-Out Dimensions
7.09" x 5" (180 x 127mm)
Overall Dimensions
7.6" x 5.51" (193 x 140mm)
Overall Height
2.65" (67.2mm)
Specifications
| Nominal Diameter | 6x8" (152 x 203mm) |
| Power Handling (RMS) | 50 Watts |
| Power Handling (Max) | 150 Watts |
| Frequency Response | 60Hz – 20kHz |
| Sensitivity (1W/1M) | 85dB |
| Nominal Impedance | 4 Ohms |
| Free-Air Resonance (Fs) | 95Hz |
| Mounting Depth | 2.28" (58mm) |
| Cut-Out Dimensions | 7.09" x 5" (180 x 127mm) |
| Overall Dimensions | 7.6" x 5.51" (193 x 140mm) |
| Overall Height | 2.65" (67.2mm) |
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.