Name: DS18 69PRO300MB-4
SKU: 69PRO300MB-4
Availability: InStock

Description

DS18 69PRO300MB-4

The 69PRO300MB‑4 is a 6×9″ professional mid‑bass loudspeaker engineered for punchy low‑frequency output and detailed midrange performance. With a 4‑ohm impedance, it pairs efficiently with most car audio and pro audio amplifiers, delivering strong mid‑bass presence, vocal clarity, and solid overall sound output. Its reinforced cone and durable motor design ensure reliable performance even at higher volume levels, making it ideal for car audio upgrades, pro audio systems, PA setups, and SPL‑oriented installations.

Specifications

Specification	Value
Nominal Diameter	6×9″ (152×228 mm)
Nominal Impedance	4 Ohms
RMS Power Handling	150W
Max Power Handling	300W
Sensitivity (1w/1m)	98 dB
Frequency Response	50Hz – 12.5 kHz
Recommended Hi-Pass Crossover	80 Hz
Sold In	Single
Grill Included	No
Demodulating Rings	Copper Ring
Cone Shape	Curvilinear
Speaker Terminals	Spade

Motor & Cone Specifications

Specification	Value
Voice Coil Diameter	1.5″ (38.6 mm)
Voice Coil Former Material	Kapton
Winding Material	CCAW
Cone Material	Paper with Water-Resistant Coat
Dust Cap Material	Paper with Water-Resistant Coat
Surround Material	Cloth
Basket Material	Steel
Basket Color/Finish	Satin Black
Magnet Material	Ferrite
Magnet Weight	20 oz
Displacement Volume	0.48 L / 0.016 ft³

Thiele & Small Parameters

Parameter	Value
Equivalent Volume (Vas)	11.61 L / 0.41 ft³
Excursion (Xmax, one way)	1.6 mm
Free Air Resonance (Fs)	100 Hz
Mechanical Q (Qms)	2.270
Electrical Q (Qes)	1.02
Total Q (Qts)	0.7
Mechanical Mass (Mms)	11.74 g
Mechanical Compliance (Cms)	0.18 mm/N
BL Factor	6.69
Voice Coil Inductance (Le)	0.31 mH
Cone Area (Sd)	213.82 cm²
DC Resistance (Re)	3.2 Ohms

Measurements

Specification	Value
Overall Diameter	6.4 × 9.2″ (164 × 234 mm)
Overall Depth	3.1″ (79 mm)
Front Mount Baffle Cutout	5.7 × 8.6″ (145 × 218 mm)
Mounting Depth	3″ (75 mm)
Motor Diameter	4.5″ (115 mm)

Product Overview

Tuned for loud, clean output in cars and motorcycles: DS18’s 69PRO300MB-4 hits harder and offers elite mid-bass performance without drawing insane amounts of power.

Effortless Loudness
Rated at 98dB, this speaker delivers massive volume using less power than other mid-bass drivers in its class. When installed in sealed or open-air environments, the 69PRO300MB-4 produces powerful impact that cuts through any road noise.

Road-Ready
Featuring a water-resistant coated paper cone and dust cap, this mid-bass driver is built to survive harsh outdoor conditions. Its heavy-duty design provides durability for performance in all elements.

Low-Distortion Performance
A precision-tuned copper demodulation ring widens the magnetic field and allows the voice coil to move smoothly, drastically reducing distortion at high volume. You get more accurate, harder-hitting mid-bass response from 50Hz to 12.5kHz.

Optimized for Power and Versatility
This speaker thrives in car door panels and motorcycle fairings where strong mid-bass is essential for a balanced sound system.