Dayton Audio Dayton Audio ST305 8 12" Series II Woofer P1264090 Dayton Audio ST305 8 12" Series II Woofer 1264090 19.00lbs 0.00 0.00 0.00
90.0000 Discontinued


Dayton Audio ST305-8 12" Series II Woofer

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Rating 5| 1 reviews

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Product Description

Manufacturer Part Number: ST305-8

  • Natural sounding paper cones that are chemically treated for extra durability and long life
  • Consists of a rubber surround and large flat spider for superior damping
  • Feature a large magnet structure
  • Made in USA

Dayton Audio ST305-8 12" Series II Woofer

The Dayton Audio ST305-8 Series II heavy duty 12" woofers feature a large magnet structure, vented pole piece, bumped backplate, and large voice coil. This combination provides excellent power handling capability, high efficiency, and very low distortion. The ST305-8 speaker's suspension system consists of a rubber surround and large flat spider for superior damping characteristics and outstanding transient response. Made in the USA.

Product Specifications
  • Nominal Diameter: 12"
  • Power Handling (RMS): 275 Watts
  • Power Handling (max): 550 Watts
  • Impedance: 8 ohms
  • Frequency Response: 25 to 2,000 Hz
  • Sensitivity: 92.2 dB 2.83V/1m
  • Voice Coil Diameter: 2.51"
  • Magnet Weight: 56 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs): 26.2 Hz
  • DC Resistance (Re): 6.2 ohms
  • Voice Coil Inductance (Le): 3.62 mH
  • Mechanical Q (Qms): 7.50
  • Electromagnetic Q (Qes): 0.35
  • Total Q (Qts): 0.34
  • Compliance Equivalent Volume (Vas): 5.79 ft.³
  • Mechanical Compliance of Suspension (Cms): 0.42 mm/N
  • BL Product (BL): 15.9 Tm
  • Diaphragm Mass Inc. Airload (Mms): 87.2g
  • Maximum Linear Excursion (Xmax): 8 mm
  • Surface Area of Cone (Sd): 506.7 cm²
Materials of Construction
  • Cone Material: Coated Paper
  • Surround Material: Rubber
  • Voice Coil Wire Material: Copper
  • Voice Coil Former: Kapton® / Polyimide
  • Basket / Frame Material: Steel
  • Magnet Material: Ferrite
Mounting Information
  • Overall Outside Diameter: 12.03"
  • Baffle Cutout Diameter: 10.95"
  • Depth: 6.25"
  • Bolt Circle Diameter: 11.59"
  • # Mounting Holes: 8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume: 1 ft.³
  • Sealed F3: 68 Hz
  • Vented Volume: 2.52 ft.³
  • Vented F3: 41 Hz
Dayton Audio ST305-8 12" Series II Woofer
  • Brand: Dayton Audio
  • Model: ST305-8
  • Part Number: 295-120
  • UPC: 844632000041
  • Product Category: Woofers
  • Unit of Measure: EA
  • Weight: 15.33 lbs.

NOTE: International/PO BOX deliveries are not available.

Product Specifications


Restricted States

This product does not ship to the APO address and the following addresses: HI, AK, PR.

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Customer Reviews
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1 stars
Date Added: Sunday 12 June, 2011
I've been in audio for a long time, back when Altec Lansing actually made Speakers...This speaker is an awesome replacement for anyone who has an older cabinet with speakers that have rotted foam surrounds etc, or if you're building your own cabinet.I have a pair of old Speaker Lab cabinets and decided to replace the woofers because of rotted foam surrounds and have to say that the replacements sound better than the originals,and I helped pick out the originals which where awesome.At the time foam was a popular surround but after time the foam broke down and disintegrated, not good.These speakers use Butyl Rubber surrounds which will last a very long time and hold the speaker in a more stable track resulting in less distortion and more linear travel.I have 2 of these hooked up to a 1,000w Sub Amp and they can take whatever is thrown at them. What's really great about them is the excellent translation of subtle sounds as well as high transient spikes.Before you go waste your money on over priced speakers, you should give these a try!
Rating: [5 of 5 Stars!]
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