Product Overview
The DS18 PRO-X6.4BM is a 6.5-inch midrange loudspeaker designed for high-performance audio systems. It features a bullet-style phase plug for enhanced sound dispersion and is engineered to deliver powerful and clear mid-range frequencies.
Specifications
| Parameter | Value |
|---|---|
| Nominal Diameter | 6.5" (165.1 mm) |
| Nominal Impedance | 4 ohms |
| MAX Power Handling | 500 Watts |
| RMS Power Handling | 250 Watts |
| Sensitivity (1W/1M) | 94dB |
| Frequency Response | 125Hz - 12KHz |
| Recommended Hi Pass Crossover | 120 Hz |
| Voice Coil Diameter | 1.5" (38.1 mm) |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Basket Material | Steel |
| Magnet Weight | 30 oz |
| Magnet Material | Ferrite |
Thiele & Small Parameters
| Parameter | Value |
|---|---|
| Equivalent Volume (Vas) | 3.810 LTR |
| Excursion (Xmax) | 8.2mm |
| Free Air Resonance (Fs) | 106 Hz |
| Mechanical Factor (Qms) | 8.027 |
| Electrical Factor (Qes) | 0.471 |
| Total Factor (Qts) | 0.445 |
| DC Resistance (Re) | 3.2 ohms |
Measurements & Dimensions
The following dimensions are provided for installation:
- Overall Diameter: 168 mm (6.61")
- Front Mount Baffle Cutout: 145 mm (5.70")
- Mounting Depth: 62 mm (2.44")
- Overall Depth: 69 mm (2.72")
Performance Data
The Sound Pressure Level (SPL) vs Frequency graph indicates the speaker's output across its operating range. It shows a relatively consistent output from approximately 200 Hz up to around 5 kHz, with a peak response in the higher mid-range frequencies. The speaker is designed to operate effectively from 125Hz up to 12KHz, with a recommended high-pass crossover point of 120 Hz to protect the driver from lower frequencies.
