Description
DS18 6.5” High-Sensitivity Midrange Loudspeaker with Ferrite Magnet | 250W RMS 4-Ohm
Key Features
- Professional High-Power Performance – 250W RMS / 500W MAX
- Ultra-High Sensitivity (103dB)
- Wide Frequency Range (100Hz–12.5kHz)
- Durable Pro-Grade Build
- Precision Engineered Voice Coil
Specifications
Nominal Diameter
6.5" / 165mm
Nominal Impedance
4 Ohms
RMS Power Handling
250W
MAX Power Handling
500W
Sensitivity (1w/1m)
103dB
Frequency Response
100Hz-12.5kHz
Recommended High-Pass Crossover
140Hz
Sold in Pair or Single
Single
Demodulating Rings
Copper Ring
Cone Shape
Curvilinear
Speaker Terminals
Push 16ga
Motor
Voice Coil Diameter
1.75" / 44.5mm
Voice Coil Former Material
Kapton
Winding Material
CCAW
Cone Material
Paper
Dust Cap Material
Paper
Surround Material
Cloth
Spider Diameter
3.8" / 96mm
Leads Connection Type
Spider Crossed
Basket Material
Steel
Basket Color/Finish
Black
Magnet Material
Ferrite
Magnet Weight
48 Oz
Displacement Volume
Thiele & Small Parameters
Equivalent Volume
7.25L / 0.256ft3
Excursion (one way)
1.1mm
Free Air Resonance
130Hz
Mechanical Factor
1.17
Electrical Factor
0.32
Total Factor
0.25
Mechanical Mass
7.59g
Mechanical Compliance
0.19mm/N
BL Factor
7.95
Voice Coil Inductance
0.33mH
Cone Area
165.13cm2
DC Resistance
3.2 Ohms
Mechanical Mass w/o air
Measurement
Overall Diameter
6.85" / 174mm
Overall Depth
3.6" / 92mm
Front Mount Baffle Cutout
5.9" / 150mm
Mounting Depth
3.36" / 85mm
Motor Diameter
5.5" / 140mm
Product Overview
Mid-Range Authority
The 6PRO500MR-4 is a 6.5” high-sensitivity professional mid-range engineered for serious output. With 250W RMS and 500W MAX power handling at 4 ohms, this speaker delivers aggressive, commanding mids that stay clear at extreme volume.
Power and Precision
Featuring a ferrite motor structure, the 6PRO500MR-4 achieves 103 dB sensitivity and a 100 Hz–12.5 kHz frequency response. Vocals and instruments project forward with intensity while maintaining tonal accuracy.
Built for Loud Systems
A 1.75” Kapton voice coil with CCAW winding improves thermal handling and efficiency. The integrated copper demodulating ring reduces distortion, keeping your mids clean and controlled even under heavy load.
Competition Ready
A steel basket provides structural rigidity while keeping weight down. The cloth surround ensures durability, making this mid-range ideal for daily drivers and high-output builds alike.
Engineered for Extreme Output
Designed for high-output applications, the 6PRO500MR-4 is built for enthusiasts who demand projection, efficiency, and reliability. Available in 6”, 8”, and 6x9” options to match your system’s needs.
