DAYTON AUDIO SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

DAYTON AUDIO SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm
Dayton Audio's Design Series has been designed to give loudspeaker designers access to high-quality drivers. Featuring a cast aluminum frame, an anodized aluminum cone and polyimide coating, they can deliver a wide range with incredibly low distortion.

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Dayton Audio SIG270-4

Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Dayton Audio's Design Series has been designed to give loudspeaker designers access to high-quality drivers. Featuring a cast aluminum frame, an anodized aluminum cone and polyimide coating, they can deliver a wide range with incredibly low distortion.

Unique sound and performance

The smooth, extended frequency response of this Dayton Audio loudspeaker guarantees accurate reproduction of the entire audio spectrum, from the lowest notes to the highest frequencies. This well-balanced frequency response delivers a natural, immersive listening experience, allowing you to hear every detail and nuance of your favorite music or movies.

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Careful attention to detail

The speaker's design, materials and meticulous engineering work in harmony to minimize distortion, ensuring crisp, clear sound even at high volumes. By achieving low distortion, this speaker provides an accurate representation of the original audio signal, enabling audiophiles to enjoy a truer-to-nature listening experience, with exceptional clarity and precision. It is also subjected to rigorous Klippel testing throughout the design process, a state-of-the-art analysis method that achieves optimal performance, consistency and reliability by precisely measuring and optimizing the speaker's mechanical magnetic properties.

Thanks to the innovative use of an aluminum ring, this loudspeaker delivers unrivalled audio performance. This Faraday ring, precisely positioned around the speaker's pole piece, not only stabilizes the magnetic field, but also significantly reduces distortion for perfectly coherent sound.

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Perfectly adjusted suspension

Diffraction caused by the abrupt edge of the suspension is minimized by the use of an indexed junction. This feature creates a smooth transition between diaphragm and suspension, which improves frequency response, while enhancing diaphragm rigidity, thus reducing distortion at high excursion.

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Controlled design

Copper-clad aluminum wire (CCA) reduces moving mass, improving overall sound quality and driver efficiency. A raised spider and vented design increase airflow to the voice coil, keeping the whole unit cool during long periods of use.

Concave diaphragm in anodized aluminum

The aluminum construction of the diaphragm is light, rigid and reduces distortion, contributing to more accurate sound reproduction. The anodization processus is optimized to contribute to diaphragm damping, while giving the loudspeaker a modern aesthetic.

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm
Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Aluminum cast frame

The cast aluminum frame isolates diaphragm movement, enhancing low-frequency performance and providing additional heat dissipation. The stainless steel badge completes the speaker's sleek aesthetic.

Dayton Audio SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm

Technical characteristics

Specifications
Speaker driver typeWoofer
Midbass
Nominal diameterØ254mm (10")
Output powerRMS : 120W
Max : 240W
Impedance4Ω
Frequency response35Hz - 3000Hz
Sensitivity92.8dB @ 2.83V/1m
Voice coil diameterØ50.8mm (2")
Weight4.35kg
Total outer dimensionsØ269*125.8mm
Magnet weight-
Thiele-Small parameters
Resonant Frequency (fS)35Hz
DC resistance (RE)3.85Ω
Voice coil inductance (LE)0.4mH
Mechanical Q (QMS)10.25
Electromagnetic Q (QES)0.43
Total Q (QTS)0.42
Compliance Equivalent Volume (VAS)58.33L (2.06ft³)
Mechanical Compliance of Suspension (CMS)0.32mm/N
Force factor(B·l)11.2T·m
Mechanical resistance (RMS)-
Moving mass + airload (MMS)64g
Moving mass (MMD)-
Max linear excursion (XMAX)6.5mm
Volume of air displaced at Xmax (VD)-
Efficiency (η₀)-
Bandwidth efficiency (EBP)-
Surface area of cone (SD)415.47cm²
Materials
ConeAluminum
SurroundRubber
Voice coil wireCopper
Voice coil formerKapton® / Polyimide
FrameSteel
MagnetCeramic ferrite
Mounting informations
Outer diameterØ269.75m (10.62")
Cutout diameterØ240.03mm (9.45")
Depth117.86mm (4.64")
Bolt circle diameter-
Number of mounting holes8
 
Data sheet
Speaker Power (W RMS)120.0
Speaker TypeMidbass
Speaker TypeWoofer
Impedance (Ω)4
Loudspeaker diameter (mm)254.0
Diaphragm typeAluminium
Efficiency / Sensitivity (dB)91.0
Max Linear Excursion (Xmax) (mm)6.5
Lowest frequency (Hz)35
Highest frequency (Hz)3000
 
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DAYTON AUDIO SIG270-4 Speaker Driver Woofer / Midbass Aluminum 120W 4Ω 93dB 35Hz-3000Hz Ø25.4cm
Dayton Audio's Design Series has been designed to give loudspeaker designers access to high-quality drivers. Featuring a cast aluminum frame,...

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