- EXTREME MIDRANGE OUTPUT: DS18 6PRO500NMR-4 delivers 250W RMS / 500W MAX with 103 dB sensitivity for aggressive, high-output sound and strong vocal projection.
- NEODYMIUM MOTOR EFFICIENCY: Lightweight neodymium magnet design increases efficiency, reduces weight, and improves overall performance in loud builds.
- CRISP VOCALS AND DETAIL: Wide 120Hz–17kHz frequency response ensures sharp vocal clarity and detailed midrange reproduction.
- BUILT FOR HIGH POWER HANDLING: Features a 1.5” Kapton voice coil, CCAW winding, copper demodulating ring, and cloth surround for durability and reduced distortion.
- EASY INSTALLATION FLEXIBILITY: Compact design with shallow 2.6” mounting depth makes it ideal for doors, custom panels, and pro audio setups.
DS18 6.5" 250W RMS 4-Ohm High-Sensitivity Pro Neo Mid Loudspeaker 6PRO500NMR-4
This Listing Includes
- (1) DS18 6.5" Loudspeaker 6PRO500NMR-4
The DS18 6PRO500NMR-4 is a 6.5-inch high-sensitivity professional midrange speaker built for extreme output, sharp vocal clarity, and efficient performance. Designed with a lightweight neodymium motor, this speaker delivers serious sound while keeping weight low for performance-driven builds.
Handling 250 watts RMS and 500 watts MAX, this 4-ohm midrange is engineered to cut through even the loudest systems with precision. Its 103 dB sensitivity ensures maximum output with minimal power, while the 120Hz -17kHz frequency range delivers aggressive midrange presence and crisp highs.
A 1.5-inch Kapton voice coil with CCAW winding provides excellent heat dissipation and consistent performance under load. The copper demodulating ring reduces distortion and enhances clarity, keeping your mids clean at high volume. Built on a black aluminum basket with a paper cone and cloth surround, this speaker is designed for durability, efficiency, and long-term reliability.
Compact, powerful, and precise, the DS18 6PRO500NMR-4 is perfect for doors, pods, and high-output pro audio systems that demand to be heard.
Features
- 6.5" High-Sensitivity Professional Midrange Speaker
- 250W RMS / 500W MAX Power Handling
- 4-Ohm Impedance
- 103 dB Sensitivity
- 120Hz - 17kHz Frequency Response
- Neodymium Magnet Motor
- 1.5" Kapton Voice Coil
- Copper Demodulating Ring
- Paper Cone with Cloth Surround
- Black Aluminum Basket
Specifications
- Nominal Diameter: 6.5" / 165mm
- Nominal Impedance: 4 Ohms
- RMS Power Handling: 250W
- MAX Power Handling: 500W
- Sensitivity (1w/1m): 103dB
- Frequency Response: 120Hz - 17kHz
- Recommended High-Pass Crossover: 140Hz
- Sold As: Single Unit
- Demodulating Rings: Copper Ring
- Cone Shape: Curvilinear
- Speaker Terminals: Push 16ga
Motor:
- Voice Coil Diameter: 1.5" / 38.6mm
- Voice Coil Former Material: Kapton
- Winding Material: CCAW
- Cone Material: Paper
- Dust Cap Material: Paper
- Surround Material: Cloth
- Leads Connection Type: Spider Crossed
- Basket Material: Aluminum
- Basket Color / Finish: Black
- Magnet Material: Neodymium
- Magnet Weight: 8 Oz
Thiele & Small Parameters:
- Equivalent Volume (Vas): 6L / 0.211ft3
- Excursion (One Way): 1.65mm
- Free Air Resonance (Fs): 125Hz
- Mechanical Factor (Qms): 2.23
- Electrical Factor (Qes): 0.45
- Total Factor (Qts): 0.38
- Mechanical Mass (Mms): 8.1g
- Mechanical Compliance (Cms): 0.19mm/N
- BL Factor: 8.78
- Voice Coil Inductance (Le): 0.42mH
- Cone Area (Sd): 149.57 cm
- DC Resistance (Re): 3.3 Ohms
Dimensions:
- Overall Diameter: 6.85" / 174mm
- Overall Depth: 3" / 77mm
- Front Mount Baffle Cutout: 5.9" / 150mm
- Mounting Depth: 2.6" / 66.5mm
- Motor Diameter: 3.5" / 90mm
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
- Visa
- Mastercard
- American Express
- Discover
- Diners Club
Digital Wallets
- Amazon Pay
- Apple Pay
- Meta Pay (formerly Facebook Pay)
- Google Pay
- Shop Pay
- PayPal
International Payment Methods
Bank Transfers
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
- Klarna
- Affirm
- Sezzle
- Snap
- Acima
- Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
- Standard Shipping: Free for orders over $100.
- Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
- Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
- Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
- Make sure you’ve received the shipping confirmation email with the tracking number.
- Log into your account on our website and use the “Check Your Order Status” button.
- If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
