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DS18 6.5” Ultra-Slim 1.16" Depth 120W RMS 4-Ohm Mid-Range Neo Pro Loudspeaker

CASE QUANTITY: 1

PACKAGE WEIGHT: 2.0 LB

SKU DS-PRO-INS6.4
by DS18
Save 20% Save 20%
Original price $124.95
Original price $124.95 - Original price $124.95
Original price $124.95
Current price $99.95
$99.95 - $99.95
Current price $99.95

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  • Ultra-Slim 1.16-Inch Mounting Depth: Perfect for shallow installs in doors, motorcycles, side panels, and custom pods
  • High Efficiency 95 dB Sensitivity: Delivers loud, clear midrange output with less amplifier power
  • 120W RMS Power Handling: Handles aggressive volume levels while maintaining clean response
  • Neodymium Motor Design: Lightweight magnet provides fast, accurate midrange performance
  • Focused 80 Hz to 6 kHz Range: Ideal for mid-focused systems with a recommended 120 Hz high-pass
  • Durable Construction: Paper cone, cloth surround, matte black steel basket, and protective steel mesh grille


DS18 6.5" Ultra-Slim 1.16" Depth 120W RMS 4-Ohm Mid-Range Neo Pro Loudspeaker


This Listing Includes



  • (1) DS18 6.5" Ultra-Slim Speaker PRO-INS6.4


The DS18 PRO-INS6.4 was engineered for one purpose: delivering real midrange output where traditional speakers simply cannot fit. With an ultra-slim 1.16-inch mounting depth, this 6.5-inch neodymium midrange speaker is the perfect solution for shallow, zero-clearance installations without sacrificing output or clarity.


Designed to Fit Anywhere


At just 1.16 inches deep, the PRO-INS6.4 excels in tight spaces such as motorcycle fairings, side panels, custom pods, door panels, and compact enclosures. It’s a true drop-in solution when space is limited, but sound quality still matters.


Powerful and Efficient


Rated at 120 watts RMS and 240 watts MAX, this 4-ohm midrange delivers strong output with less amplifier power thanks to its 95 dB sensitivity. The 1.5-inch KSV voice coil, lightweight CCAW windings, and neodymium motor work together to produce fast, accurate midrange response that stays clean even at higher volumes.


Focused Midrange Performance


Covering a frequency range of 80 Hz to 6 kHz, the PRO-INS6.4 is optimized for tight, punchy midrange reproduction. For best performance and reliability, a 120 Hz high-pass crossover is recommended.


Built for Daily Use


The speaker includes a custom steel mesh grille with cloth protection, helping shield the cone from dust and debris. A paper cone, cloth surround, and matte black steel basket provide a durable, balanced design suitable for everyday driving and demanding installations.


Whether you're filling gaps in a crowded build or stacking multiple drivers in a compact layout, the DS18 PRO-INS6.4 delivers full-size sound from an ultra-low-profile package that fits almost anywhere.


Features



  • Ultra-slim 1.16-inch mounting depth for shallow installs

  • 120W RMS / 240W MAX power handling

  • High-efficiency 95 dB sensitivity

  • Neodymium motor for fast, accurate response

  • 1.5-inch KSV voice coil with CCAW windings

  • Focused midrange frequency range

  • Custom steel mesh grille with cloth protection included

  • Ideal for motorcycles, doors, pods, and tight enclosures


Specification



  • Nominal Diameter: 6.5" / 167 mm

  • Nominal Impedance: 4 Ohms

  • RMS Power Handling: 120W

  • MAX Power Handling: 240W

  • Sensitivity (1W/1m): 95 dB

  • Frequency Response: 80 Hz - 6 kHz

  • Recommended High-Pass Crossover: 120 Hz

  • Sold As: Single

  • Grille Included: Yes, with cloth protection

  • Voice Coil Diameter: 1.5" / 38.6 mm

  • Voice Coil Former: KSV

  • Winding Material: CCAW

  • Cone Material: Paper

  • Surround Material: Cloth

  • Basket Material: Steel

  • Basket Finish: Matte Black

  • Magnet Material: Neodymium

  • Magnet Weight: 1.89 oz


Thiele & Small Parameters



  • Equivalent Volume (Vas): 7.961 L / 0.281 ft

  • Excursion (Xmax one way): 2 mm

  • Free Air Resonance (Fs): 140 Hz

  • Mechanical Factor (Qms): 5.336

  • Electrical Factor (Qes): 1.408

  • Total Factor (Qts): 1.114

  • Moving Mass (Mms): 8.868 g

  • Compliance (Cms): 0.312 mm/N

  • BL Factor: 3

  • Voice Coil Inductance: 0.119 mH

  • Cone Area (Sd): 132.73 cm

  • DC Resistance (Re): 3.5 Ohms

  • Mechanical Mass w/o Air: 7.988 g


Dimensions:



  • Overall Diameter: 6.89" / 175 mm

  • Overall Depth: 1.94" / 49 mm

  • Mounting Depth: 1.16" / 29 mm

  • Front Mount Cutout: 5.65" / 144 mm

  • Motor Diameter: 4.31" / 110 mm

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

  • Bancontact
  • iDEAL

Bank Transfers

  • Zelle

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.
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What began in 2014 as a small family-run shop on E-bay & Amazon has grown into a thriving business built on trust, dedication, and a passion for helping our customers find exactly what they need.

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