willland Posted February 9, 2014 Share Posted February 9, 2014 (edited) https://app.audiogon.com/listings/subwoofers-svs-dual-subwoofers-sb-13-ultra-2014-02-09-home-theater-47909-lafayette-in This is the first time I have seen the SB13 Ultras on the used market, let alone twins. Very tight, accurate, musical, and powerful and in a 17.4 x 17.4 x 17.4 box. **Frequency response graph does not denote maximum output capability. 2-meter ground plane away from reflective structures (quasi-anechoic) Roll-off slope specifically optimized to take maximum advantage of available room gain 20-460 Hz +/- 3 dB Bill Edited February 9, 2014 by willland Quote Link to comment Share on other sites More sharing options...
mustang guy Posted February 10, 2014 Share Posted February 10, 2014 Why does the post say "Expired" and have an ending date of 3/11? Quote Link to comment Share on other sites More sharing options...
willland Posted February 10, 2014 Author Share Posted February 10, 2014 Why does the post say "Expired" and have an ending date of 3/11? Seller may have canceled ad because he/she sold them locally or changed his/her mind or had them listed somewhere else and that other ad generated the sale. Only A-gon listing fees paid but not completed sale fee. Bill Quote Link to comment Share on other sites More sharing options...
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