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Dayton Audio SIG225-4 8" Signature Series Woofer 100W Driver 4 Ohm
Brand Dayton Audio
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Product Description
Manufacturer Part Number: SIG225-4
The Dayton Audio Signature Series was designed to give DIY speaker designers access to the pinnacle of speaker technology at the value expected from Dayton Audio. Featuring an open aluminum cast frame, anodized aluminum cone and a polyimide former, these drivers can provide extended range with incredibly low distortion. After hours of painstaking engineering and testing with meticulous attention to detail, we at Dayton Audio deem this driver line worthy of the endorsement of even the most critical audiophile.
Key Features:
Dayton Audio SIG225-4 8" Signature Series Woofer 100W Driver 4 Ohm
The Dayton Audio Signature Series was designed to give DIY speaker designers access to the pinnacle of speaker technology at the value expected from Dayton Audio. Featuring an open aluminum cast frame, anodized aluminum cone and a polyimide former, these drivers can provide extended range with incredibly low distortion.
The smooth and extended frequency response of these Dayton Audio speaker drivers ensures that its entire audible spectrum is accurately reproduced, from the lowest bass notes to the highest treble frequencies. This well-balanced frequency response delivers a natural and immersive listening experience, allowing you to hear every detail and nuance in your favorite music or movies.
The speaker drivers' design, materials, and meticulous engineering work in harmony to minimize distortion, ensuring that the sound remains clean and clear even at high volumes. By achieving low distortion, these speaker drivers provide an accurate representation of the original audio signal, allowing audiophiles to enjoy a true-to-life listening experience with exceptional clarity and precision. The Signature Series speaker drivers used rigorous Klippel testing throughout the design process, a state-of-the-art analysis method to provide optimal performance, consistency, and reliability by precisely measuring and optimizing the drivers' magnetic and mechanical properties.
Diffraction caused by the abrupt edge of the surround is minimized by the use of an indexed junction. This design feature helps create a smooth transition between the cone and surround, resulting in improved frequency response while improving the rigidity of the cone further resulting in less cone distortion at high excursion.
The polyimide voice coil formers provide excellent mechanical damping and a smoother frequency response, and the copper-clad aluminum (CCA) wire reduces moving mass further enhancing the overall sound quality and increasing the efficiency of the speaker driver. An elevated spider and vented former increases airflow to the coils to keep the assembly running cool during long periods of use.
The aluminum construction of the cone is lightweight, rigid, and helps reduce distortion, contributing to a more accurate sound reproduction. The anodization process is optimized to contribute to the dampening of the cone and provides high aesthetic value to any speaker design.
The aluminum cast frame keeps movement isolated to the diaphragm, increasing low frequency performance and providing additional thermal dissipation. Stainless-steel badging completes the sleek aesthetic of the Signature Series drivers providing a timeless visual appeal for every speaker designer.
We stand behind our products and our warranty is a demonstration of our commitment to quality and reliability.
Learn More
The Dayton Audio Signature Series was designed to give DIY speaker designers access to the pinnacle of speaker technology at the value expected from Dayton Audio. Featuring an open aluminum cast frame, anodized aluminum cone and a polyimide former, these drivers can provide extended range with incredibly low distortion. After hours of painstaking engineering and testing with meticulous attention to detail, we at Dayton Audio deem this driver line worthy of the endorsement of even the most critical audiophile.
Key Features:
- Extensive Klippel LMP and LSI testing to optimize Bl symmetry and parameters
- Indexed cone/surround junction for smooth transition/frequency response
- Polyimide formers for improved mechanical damping smooth frequency response
- One piece concave black anodized aluminum cone
- Vented former and elevated spider for improved air flow
- Open aluminum cast frame for improved heat dissipation
- Countersunk stainless steel magnet badging for long time aesthetics
Dayton Audio SIG225-4 8" Signature Series Woofer 100W Driver 4 Ohm
Dayton Audio SIG225-4 8" Signature Series Extended Range 100W Driver 4 Ohm
The Dayton Audio Signature Series was designed to give DIY speaker designers access to the pinnacle of speaker technology at the value expected from Dayton Audio. Featuring an open aluminum cast frame, anodized aluminum cone and a polyimide former, these drivers can provide extended range with incredibly low distortion.
Key Specs:
- Nominal Diameter: 8"
- Power Handling (RMS): 100
- Power Handling (MAX): 200
- Impedance: 4Ω
- Frequency Response: 40Hz-3000Hz
- Sensitivity: 91.2dB @ 2.83V/1m
- Voice Coil Diameter: 2"
- Maximum Linear Excursion: 6mm
Signature Sound and Performance
The smooth and extended frequency response of these Dayton Audio speaker drivers ensures that its entire audible spectrum is accurately reproduced, from the lowest bass notes to the highest treble frequencies. This well-balanced frequency response delivers a natural and immersive listening experience, allowing you to hear every detail and nuance in your favorite music or movies.
Meticulous Attention to Detail
The speaker drivers' design, materials, and meticulous engineering work in harmony to minimize distortion, ensuring that the sound remains clean and clear even at high volumes. By achieving low distortion, these speaker drivers provide an accurate representation of the original audio signal, allowing audiophiles to enjoy a true-to-life listening experience with exceptional clarity and precision. The Signature Series speaker drivers used rigorous Klippel testing throughout the design process, a state-of-the-art analysis method to provide optimal performance, consistency, and reliability by precisely measuring and optimizing the drivers' magnetic and mechanical properties.
Indexed Cone and Surround Junction
Diffraction caused by the abrupt edge of the surround is minimized by the use of an indexed junction. This design feature helps create a smooth transition between the cone and surround, resulting in improved frequency response while improving the rigidity of the cone further resulting in less cone distortion at high excursion.
Vented Polyimide Former with CCA Voice Coil Wire and Elevated Spider Suspension
The polyimide voice coil formers provide excellent mechanical damping and a smoother frequency response, and the copper-clad aluminum (CCA) wire reduces moving mass further enhancing the overall sound quality and increasing the efficiency of the speaker driver. An elevated spider and vented former increases airflow to the coils to keep the assembly running cool during long periods of use.
Concave Black Anodized Aluminum Cone
The aluminum construction of the cone is lightweight, rigid, and helps reduce distortion, contributing to a more accurate sound reproduction. The anodization process is optimized to contribute to the dampening of the cone and provides high aesthetic value to any speaker design.
Open Aluminum Cast Frame and Stainless-Steel Badging
The aluminum cast frame keeps movement isolated to the diaphragm, increasing low frequency performance and providing additional thermal dissipation. Stainless-steel badging completes the sleek aesthetic of the Signature Series drivers providing a timeless visual appeal for every speaker designer.
Sig120-4
- 4"
- 80 Watts MAX
- 4 Ohm
Sig150-4
- 5-1/4"
- 120 Watts MAX
- 4 Ohm
Sig180-4
- 6-1/2"
- 160 Watts MAX
- 4 Ohm
Sig270-4
- 10"
- 240 Watts MAX
- 4 Ohm
We've Got Your Back
We stand behind our products and our warranty is a demonstration of our commitment to quality and reliability.
Learn More
Product Details | |
|---|---|
| Brand | Dayton Audio |
| Model | SIG225-4 |
| Part Number | 295-656 |
| UPC | 848791009525 |
| Unit of Measure | Each |
| Weight | 6.3 |
Product Specifications | |
|---|---|
| Nominal Diameter | 8" |
| Bolt Circle Diameter | 8.31 |
| Power Handling (RMS) | 100 Watts |
| Power Handling (MAX) | 200 Watts |
| Impedance | 4Ω |
| Frequency Response | 40 - 3000Hz |
| Sensitivity | 91.24dB 2.83V/1m |
| Voice Coil Diameter | 2" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 39.94Hz |
| DC Resistance (Re) | 3.89Ω |
| Voice Coil Inductance (Le) | 0.29mH |
| Mechanical Q (Qms) | 8.87 |
| Electromagnetic Q (Qes) | 0.45 |
| Total Q (Qts) | 0.43 |
| Compliance Equivalent Volume (Vas) | 1.04ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.43mm/N |
| BL Product (BL) | 8.95T·m |
| Diaphragm Mass Inc. Airload (Mms) | 36.93g |
| Maximum Linear Excursion (Xmax) | 6mm |
| Surface Area of Cone (Sd) | 226.9cm² |
Materials of Construction | |
|---|---|
| Cone Material | Aluminum |
| Surround Material | Rubber |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Kapton® / Polyimide |
| Basket / Frame Material | Steel |
| Magnet Material | Ceramic Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 8.85" |
| Baffle Cutout Diameter | 7.48" |
| Depth | 4" |
| # Mounting Holes | 6 |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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