ONE PAIR OF EXCELLENT CONDITION DAYTON ST305-8 WOOFERS, THEY ARE 12 AND 8 OHM WOOFERS Dayton Audio ST305-8 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 speakers suspension system consists of a rubber surround and large flat spider for superior damping characteristics and outstanding transient response. Made in the USA.Product DetailsBrandDayton AudioModelST305-8Part Number295-120UPC844632000041Unit of MeasureEachWeight15.33Product SpecificationsNominal Diameter12Bolt Circle Diameter11.59Power Handling (RMS)275 WattsPower Handling (MAX)550 WattsImpedance8?Frequency Response25 to 2,000HzSensitivity92.2dB 2.83V/1mVoice Coil Diameter2.51Thiele-Small ParametersResonant Frequency (Fs)26.2HzDC Resistance (Re)6.2?Voice Coil Inductance (Le)3.62mHMechanical Q (Qms)7.5Electromagnetic Q (Qes)0.35Total Q (Qts)0.34Compliance Equivalent Volume (Vas)5.79ft³Mechanical Compliance of Suspension (Cms)0.42mm/NBL Product (BL)15.9T·mMaximum Linear Excursion (Xmax)8mmSurface Area of Cone (Sd)506.7cm²Materials of ConstructionCone MaterialCoated PaperSurround MaterialRubberVoice Coil Wire MaterialCopperVoice Coil FormerKapton® / PolyimideBasket / Frame MaterialSteelMagnet MaterialFerriteMounting InformationOverall Outside Diameter12.03Baffle Cutout Diameter10.95Depth6.25# Mounting Holes8Parts Express Staff Recommended Enclosure VolumeSealed Volume1ft³Sealed F368HzVented Volume2.52ft³Vented F34 WEIGHING IN IN AT almost 13 POUNDS EACH THERE ARE NO PROBLEMS WITH THESE WOOFERS, THE SURROUNDS ARE RUBBER AND WILL LAST FOR YEARS, THE ATTACHMENT WIRES ARE SET UP TO DROP RIGHT INTO PLACE for a a KLIPSCH HERESY ONE WHERE A K-22 WOOFER WOULD FIT THESE WOOFERS ARE EXCELLENT QUALITY AND VERY HEAVY AT almost 13 POUNDS EACH, THEY ARE 12 WOOFERS RATED A 8 OHMS--------------------------------------------------------------SHIPPING WITH FEDEX GROUND AT $55 FOR THE PAIR

For sale is a pair of vintage and highly desirable Klipsch 12 K22-R, woofers. Please note that these woofers have been tested with speakers and with my ohm meter and function properly. These woofers are from 1980, a time when many enthusiasts feel Klipsch was making their best speakers. These woofers are a direct replacement for Klipsch Heresy speakers, but are popular with build it yourself projects, too. Note, that the speakers will be bolted together, face to face, as seen in the last photo, for shipping. This helps ensure their safe arrival. The woofers will be shipped in a high quality 14 x 14 x 14 box as well. Please email me with any questions. Because of the age and collectible nature of this item, returns cannot be accepted. Please check ahead of time to make sure this is what you need. I just celebrated my 25th year as a seller on eBay and have maintained 100% positive feedback since day 1 back in 1998. Thanks for looking. Jeff