frankmarsi Posted January 30, 2006 Report Share Posted January 30, 2006 Anyone have information as to whether or not the AR Acoustic Research 12" Woofers from a TSW-910 can be used in a AR-LST or AR-3a? Would the sound be very different from a 1972 12inch woofer, are their impedences the same?Thanks for any reply.frankmarsi@verizon.net Link to comment Share on other sites More sharing options...
tysontom Posted February 1, 2006 Report Share Posted February 1, 2006 >Anyone have information as to whether or not the >AR Acoustic Research 12" Woofers from a TSW-910 can be>used in a AR-LST or AR-3a? Would the sound be very different>from a 1972 12inch woofer, are their impedences the same?>Thanks for any reply.>frankmarsi@verizon.netFrank, the TSW-Series woofer is a poly-cone affair with a completely circular, 12-inch frame flange, and thus would not fit the AR-3a cabinet with its flat-side cabinet cutout. It probably has the same Xmax and free-air resonance, but other than that it would not properly work in the earlier AR speakers. Also, I believe that the TSW-910 12-inch woofer, AR Part No. 1210074-2, has somewhat different response characteristics due to its plastic cone, and acoustically it probably would not be a good fit in the earlier AR speakers. That woofer was also optimized for the TSW's 200-Hz crossover, I believe, and might not be compatible with the 525-575-Hz crossover in the AR-3a/AR-LST. There was another poly woofer in this category, AR Part No. 1210074-0, that was used on the Magic MGC-2, AR50 and AR50T. This woofer also would not be a good match for the AR-3a/LST.--Tom Tyson Link to comment Share on other sites More sharing options...
frankmarsi Posted February 1, 2006 Author Report Share Posted February 1, 2006 >>Anyone have information as to whether or not the >>AR Acoustic Research 12" Woofers from a TSW-910 can>be>>used in a AR-LST or AR-3a? Would the sound be very>different>>from a 1972 12inch woofer, are their impedences the same?>>Thanks for any reply.>>frankmarsi@verizon.net>>Frank, the TSW-Series woofer is a poly-cone affair with a>completely circular, 12-inch frame flange, and thus would not>fit the AR-3a cabinet with its flat-side cabinet cutout. It>probably has the same Xmax and free-air resonance, but other>than that it would not properly work in the earlier AR>speakers. Also, I believe that the TSW-910 12-inch woofer, AR>Part No. 1210074-2, has somewhat different response>characteristics due to its plastic cone, and acoustically it>probably would not be a good fit in the earlier AR speakers. >That woofer was also optimized for the TSW's 200-Hz crossover,>I believe, and might not be compatible with the 525-575-Hz>crossover in the AR-3a/AR-LST. >>There was another poly woofer in this category, AR Part No.>1210074-0, that was used on the Magic MGC-2, AR50 and AR50T. >This woofer also would not be a good match for the AR-3a/LST.>>--Tom TysonHi Tom, thanks for the reply.I understand your point about the 'stats' being off, so I'll control my thoughts,but these sure look great!Respectfully, Frank Marsi Check out ebay #5859269380 today 1-31-06. These guys have squared sides. Link to comment Share on other sites More sharing options...
tysontom Posted February 1, 2006 Report Share Posted February 1, 2006 >>>Anyone have information as to whether or not the >>>AR Acoustic Research 12" Woofers from a TSW-910>can>>be>>>used in a AR-LST or AR-3a? Would the sound be very>>different>>>from a 1972 12inch woofer, are their impedences the>same?>>>Thanks for any reply.>>>frankmarsi@verizon.net>>>>Frank, the TSW-Series woofer is a poly-cone affair with a>>completely circular, 12-inch frame flange, and thus would>not>>fit the AR-3a cabinet with its flat-side cabinet cutout. >It>>probably has the same Xmax and free-air resonance, but>other>>than that it would not properly work in the earlier AR>>speakers. Also, I believe that the TSW-910 12-inch>woofer, AR>>Part No. 1210074-2, has somewhat different response>>characteristics due to its plastic cone, and acoustically>it>>probably would not be a good fit in the earlier AR>speakers. >>That woofer was also optimized for the TSW's 200-Hz>crossover,>>I believe, and might not be compatible with the>525-575-Hz>>crossover in the AR-3a/AR-LST. >>>>There was another poly woofer in this category, AR Part>No.>>1210074-0, that was used on the Magic MGC-2, AR50 and>AR50T. >>This woofer also would not be a good match for the>AR-3a/LST.>>>>--Tom Tyson>>>>Hi Tom, thanks for the reply.I understand your point about the>'stats' being off, so I'll control my thoughts,but these sure>look great!>Respectfully, Frank Marsi> Check out ebay #5859269380 today 1-31-06. These guys have>squared sides.Frank, I looked at the woofers on the eBay listing, and I forgot that they do have the flat-side frames. The magnets are also just about identical to the 200003-type AR-3a woofer, and the speakers appear to be very similar to the Tonegen 1210032 AR-3a service-replacement woofer, so these woofers will probably do okay. The polyethylene cone material will sound different, as they typically don't behave well at higher frequencies, but within operating range in the AR-3a and AR-LST, they should be okay. It probably would be worth a try -- they probably will sound okay. If you get them and install them, let us know how they sound.--Tom Tyson Link to comment Share on other sites More sharing options...
mluong303 Posted February 1, 2006 Report Share Posted February 1, 2006 See 01-31-06 posting in the "8 Ohms tweeter, Pots or L-Pads, AR-3a Limited" for my input.ML Link to comment Share on other sites More sharing options...
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