mark heija Posted November 22, 2018 Share Posted November 22, 2018 I've had my simple home system since High School (1976): Klipsch La Scalas and a Sanusi 9090db, working perfectly all these years. Recently retired after 43 years of teaching art at the Boys & Girls Club where I'll still be volunteering on our project to refurbish 4 La Scalas left on the sidewalk down the block! (my work studio system: AR-11 and Sansui 9090 also still great) I'm thinking of treating myself to a subwoofer upgrade. I'm a bit apprehensive with the Sansui warning (see attached) about mixing impedances and don't even know if this applies in my case. Also, don't even know where to start with regards to hook-up. Listened to a SVS SB-2000 (about my price range) and would appreciate any advise. Thanks Quote Link to comment Share on other sites More sharing options...
T2K Posted November 22, 2018 Share Posted November 22, 2018 My Dad used a 9090DB with several pairs of speakers for years. He used a speaker selector with impedance protection. Keith Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 22, 2018 Author Share Posted November 22, 2018 Thanks Keith, is this speaker selector a separate unit? -Mark Quote Link to comment Share on other sites More sharing options...
Peter P. Posted November 22, 2018 Share Posted November 22, 2018 Use the "Pre Out/Main In" on the 9090b to connect the receiver to the subwoofer's Line Level inputs and outputs. This is a high impedance/signal level connection, not a speaker level/low ohms connection, so there is no worry of the speaker impedance going too low. It's no different than connecting say, a tape recorder to the receiver. You can purchase RCA connection cables in virtually any length necessary to reach your subwoofer. While I don't have an SVS sub, I lust to try one. They check all the boxes; low current draw in standby mode (I calculated an annual cost of 36 cents in Standby mode!), and it's sealed so it will have a tighter sound and better match music. Report back with your experience if you make the leap! Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 22, 2018 Author Share Posted November 22, 2018 Thanks Peter, This is good news and timely... with free shipping from SVS if ordered today. -Mark Quote Link to comment Share on other sites More sharing options...
wuzzzer Posted November 22, 2018 Share Posted November 22, 2018 1 hour ago, mark heija said: Thanks Peter, This is good news and timely... with free shipping from SVS if ordered today. -Mark SVS+Klipsch=great things Quote Link to comment Share on other sites More sharing options...
kink56 Posted November 23, 2018 Share Posted November 23, 2018 Oh hecks yeah! The Sansui not only has pre out and main in, but it has TWO pre outs! Don't even use the speaker outs to power your sub at all. Should be a great set up. You have two choices, you can simply use your unused pre out to your sub and that's it. Or you can take the bridge connectors off your pre out/main in and send the pre out to your sub and then return a main in line FROM your sub to your Sansui. Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 23, 2018 Author Share Posted November 23, 2018 Well, this sounds promising. Is there an advantage to plan B, taking off the bridge connectors, etc...? Thanks for your suggestions. Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 23, 2018 Author Share Posted November 23, 2018 Sorry I'm not quite clear on the concept yet, is the pre-out to subwoofer (plan A above) a 1 or 2 cable connection? Quote Link to comment Share on other sites More sharing options...
babadono Posted November 23, 2018 Share Posted November 23, 2018 Plan A would be 2 cables, both a left and right. Plan B would be 4 cables. It would return a high pass filtered signal from the sub to your main two channel inputs on the Sansui. From the SVS website data on the SB-2000: Fixed 80 Hz 12 dB/octave high pass filter on line level outputs. With LaScalas as your mains I would not think you have to worry too much about a high pass filtered signal going to them. Just let them naturally roll off at the low end and let the sub add the lower octaves. Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 23, 2018 Author Share Posted November 23, 2018 This is very helpful. The SB-2000 ships Monday. After 40+ years of loving my stereo system this is really exciting! Thanks. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted November 23, 2018 Share Posted November 23, 2018 Please post follow ups. Photos of the refurbishment of the 4 orphaned La Scalas would also be appreciated. 1 Quote Link to comment Share on other sites More sharing options...
mark heija Posted November 23, 2018 Author Share Posted November 23, 2018 This refurbishment project has been mainly a summertime (3 years now!) project with the kids at the Boys & Girls Club... slow going, but little by little we've made progress. The Klipsch Audio Community has been wonderful with tons of good advice. Now that I'm "retired" I'll have a bit more time to volunteer on this endeavor. Recently we've been patching and sanding the cabinets in preparation of adding 1/4" mdf to the exterior prior to walnut veneer. I'm attaching some photos of the steps so far. Already secured all new (or had refurbished by Crites) innards. 7 1 Quote Link to comment Share on other sites More sharing options...
Moderators dtel Posted November 23, 2018 Moderators Share Posted November 23, 2018 Very cool project. 1 Quote Link to comment Share on other sites More sharing options...
Dave1290 Posted November 23, 2018 Share Posted November 23, 2018 Congrats Mark, ya got a few "keepers" there! I'm sure the kids are gonna be "mega" proud when they're done! Partay time! Again, Congrats! Quote Link to comment Share on other sites More sharing options...
codewritinfool Posted November 23, 2018 Share Posted November 23, 2018 Mark, this looks great. A mega plus is giving those kids a chance to hear REAL speakers. Please keep the photos coming! Quote Link to comment Share on other sites More sharing options...
Schu Posted November 23, 2018 Share Posted November 23, 2018 Wow... now that is something that is VERY impressive. Thank you for all you do for the klipsch community and for the kids in your local area. This/these projects need to be adopted by more local communities. Quote Link to comment Share on other sites More sharing options...
kink56 Posted November 24, 2018 Share Posted November 24, 2018 Very cool indeed. Great to see kids learn stuff with hands on experience. Fun, fun, fun! Quote Link to comment Share on other sites More sharing options...
babadono Posted November 24, 2018 Share Posted November 24, 2018 before pics are GREAT......smurfadelic Like others have said very cool that you are doing this with the kids. Perhaps and I hope some of them will exclaim...OH! that's what speakers are supposed to sound like! Quote Link to comment Share on other sites More sharing options...
Marvel Posted November 24, 2018 Share Posted November 24, 2018 I remember back when you first got these and started the project. It's a long slow process, bt will be nice when they are finished. Bruce Quote Link to comment Share on other sites More sharing options...
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