For sale is a pair of Audio Concepts DV12 twelve inch, dual voice coil woofers that are popular with the do-it-yourself home subwoofer crowd.
Info found on-line: *The DV12 is a dual-voice coil driver with two 8 ohm coils. All specifications derived with voice coils wired in parallel. Custom designed, ultra-long vented pole piece, rigid long-fiber ribbed cone and rubber surround. The super long throw of the DV12 results in exceptionally low distortion at low frequencies. The DV12 offers excellent sound quality and long term reliability. Suggested DV12 Applications: Sealed or aperiodic enclosures of <2.0 to 5 cubic feet, Vented fourth-order alignments, Electronically assisted higher-order alignments, Infinite baffle systems, Free-air, electronically assisted dipolar systems, Bandpass woofer systems The Cast-Frame DV12 by Audio Concepts, Inc. 1998 This legendary 12” subwoofer with over 10mm linear one-way X-max is now available with a cast-frame and flat spider, resulting in: •Improved suspension linearity for even lower distortion measurements. •Improved specifications for the legendary DV12 performance in smaller box sizes. •Nominal Diameter: 12”, Impedence: 4 ohms, Range: 16-500Hz •RMS Power: 150 watts, System Power: 200 watts, Sensitivity: 88db •Magnet mass: 1700 grams, BL: 9.75 Tm, FS: 16Hz •Qms: 5.78, Qes: .391, Qts: .366 •Vas: 346 liters, Cms: 821.05, Mms: 118 grams, Mmd: 111 grams •Xmax (linear one way): 10.55 mm, Voice Coil Diameter: 2” •Voice Coil Height: 30.61 mm, Air Gap Height: 9.525 mm •Voice Coil Inductance: 2mh, Voice Coil Resistance: 3.11 ohms •12 3/8” overall width, hole size 11 1/8” Flange depth 3/8” (1/2” with gasket) •Overall depth from front of flange to rear of magnets: 6”
Box Volume, Box Resonance QL Q/Ripple Port* F3 F10 2.0 sealed 42Hz 7 ,97 ---- 35Hz 25Hz 4.5 sealed 31Hz 7 .7 ---- 30Hz 20Hz 5.0 vented 18Hz 7 +1.2db 4”x18” 25Hz 17Hz 6.0 vented 15Hz 7 +.5db 4”x22.25” 25Hz 16Hz 8.0 vented 16Hz 7 0 db 4”x14” 22Hz 14Hz *The complete range of enclosures for any given driver is limited only by your knowledge and computer analysis software available. 1. All ports calculated using 4” I.D. tubing (12.57 sq.in.). This is the approx. min. area required for low turbulence. 2. All calculations assume a .5ohm series resistance (wiring, output impedance of driving amplifier). A greater series resistance will require a slightly larger box size to attain the same performance."
These woofers appear to be new and unused, and are in excellent condition. $150.00 plus shipping Email Transfer preferred, or Bank/Postal Money Order. or direct deposit. If buyer wants PayPal, buyer pays fee.
Re: Audio Concepts DV12 woofers
Sorry! This ad does not allow guest replies. Please log in, or register to reply to this ad.