RS75-4 3" Reference Full-Range Driver 4 Ohm

Full-range performance

8-14 days

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Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform "boutique" drivers that cost several times the price.

The Dayton Audio Reference Series sets a new standard of value in high-performance loudspeaker drivers. Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform "boutique" drivers that cost several times the price. Its low-distortion characteristics and smooth response provide exceptional clarity, detail, and dynamics. Features a black anodized cone, heavy-duty 4-hole cast frame, low-loss rubber surround, and gold terminals.


Sealed Volume 0.02 ft.³
Sealed F3 174 Hz
Vented Volume 0.04 ft.³
Vented F3 93 Hz
* Enclosure volume/F3s based on BassBox "optimum" calculations


• Full-range performance
• Low distortion and high resolution
• Aluminum frame, aluminum cone, rubber surround
• Distortion-reducing copper ring, copper cap, and aluminum phase plug
• Subtle yet high-tech look makes a bold cosmetic statement

Speaker Series Reference Series
Model Number RS75-4
Color Black
Unit of Measure Each
UPC 844632086281
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 0.6000
Speaker Type Full-Range
Nominal Diameter 3"
Power Handling (RMS) 15 watts
Power Handling (max) 30 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 85.2 dB @ 2.83V/1m
Frequency Response 170 - 20,000 Hz
Voice Coil Diameter 16 mm
Magnet Weight --
DC Resistance (Re) 3.1 ohms
Voice Coil Inductance (Le) 0.72 mH @ 1 kHz
Resonant Frequency (Fs) 177 Hz
Mechanical Q (Qms) 5.76
Electromagnetic Q (Qes) 0.97
Total Q (Qts) 0.83
Diaphragm Mass Inc. Airload (Mms) 1.1g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) 0.72 mm/N
Surface Area Of Cone (Sd) 12 cm²
Volume of Displacement (Vd) 1.31 cm³
BL Product (BL) 2.01 Tm
Compliance Equivalent Volume (Vas) 0.14 liters
Maximum Linear Excursion (Xmax) 1.1 mm
Driver's Mechanical Losses (Rms) --
Cone / Diaphragm Material Black Anodized Aluminum Cone
Entry / Exit Diameter --
Surround Material Rubber
Voice Coil Wire Material Copper
Voice Coil Former Aluminum
Basket/Frame Material Cast Aluminum
Magnet Material Ferrite
Overall Outside Diameter 72 mm
Overall Depth 38.5 mm
Baffle Cutout Diameter 54 mm
# Mounting Holes 4
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --
SKU 844632086281
Model # RS75-4
Barcode # 844632086281
Brand Dayton Audio
Shipping Weight 0.2800kg
Shipping Width 0.095m
Shipping Height 0.057m
Shipping Length 0.083m
Shipping Cubic 0.000449000m3
Assembled Length 0.083m
Assembled Height 0.057m
Assembled Width 0.095m

Replaced 2.5 inch mid range in e46 with Harmon kar

By: on 8 October 2014
Used this speaker to replace the 2.5 inch HK mid range speakers (front door) in my BMW e46 convertible! The old paper midrange had ripped! Despite being a 3 inch speaker it fits easily in the oem bracket with the tweeter! I didn't secure it with screws, but placed sound foam around the front ring and on the magnet to prevent vibration. The oem bracket holds the speaker firmly against the door. Sound is amazingly clear compared to stock. The combination of this as a midrange combined with the tweeter really provide clarity - maybe too much for some in the confined space of the car, but I love it. Acoustic guitar work sounds astounding and brass on some "The cure " tracks really comes to life.

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