boa12 Posted July 4, 2001 Share Posted July 4, 2001 if they do have a high pass filter on speaker out, why do they? if u connect your big tower mains thru the svs, why would it limit bass to them at say 100hz. doesn't that defeat the purpose of getting more 50-100hz bass to the mains (tom)? even if svs doesn't have a high pass could u or someone answer anyway ------------------ Klipsch KLF 30 (front), KLF C-7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnect & Monster CX-2 biwire & Z-12 cable Marantz SR-8000 receiver Sony DVP-C650D 5-disk cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Scientific Atlanta Explorer 2000 digital cable box Boa's Listenin Lounge: Klipsch RF-3 (front), RC-3, cheap little Technics (rear) Monster MCX Biwires Sony STR-DE935 a/v receiver Kenwood KR-9600 AM/FM stereo receiver (vintage 1975) Russound AB-2 receiver switch to RF-3 Teac PD-D1200 5-disk cd changer Technics SL-1950 turntable/AT LS500 cartridge Sega Genesis game player Sub: None yet rock on! Quote Link to comment Share on other sites More sharing options...
T2K Posted July 4, 2001 Share Posted July 4, 2001 Boa,does your sub have high and low level inputs and outputs?And if so can you use them simultaneously? Keith Quote Link to comment Share on other sites More sharing options...
boa12 Posted July 5, 2001 Author Share Posted July 5, 2001 keith, yea but the velodyne manual says not to do it. we were talking about the high pass on another thread on the ksw where someone said to not set the low pass cross under 100hz when running speaker out to the mains. just trying to find out the dynamics on how the low pass & high pass jive together. just one of those things ya know was hoping TV of svs could explain maybe... the trouble is my velo hgs has been in the shop for 'bout a mo. now so i can't experiment w/ it Quote Link to comment Share on other sites More sharing options...
Curt Jett Posted July 6, 2001 Share Posted July 6, 2001 I have two of the 20-39 passive units so I can't give an answer but why not go to their web site and ask the question? www.svsubwoofers.com and ask in tech support and TV will probably be the one to answer. Quote Link to comment Share on other sites More sharing options...
boa12 Posted July 6, 2001 Author Share Posted July 6, 2001 thanks cjett. i did go to their website & looked for the info through out, but didn't think of using their forum. kinda hoping tv(tom) would pick it up here. just academic research but may have to try that ------------------ Klipsch KLF 30 (front), KLF C-7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnect & Monster CX-2 biwire & Z-12 cable Marantz SR-8000 receiver Sony DVP-C650D 5-disk cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Scientific Atlanta Explorer 2000 digital cable box Boa's Listenin Lounge: Klipsch RF-3 (front), RC-3, cheap little Technics (rear) Monster MCX Biwires Sony STR-DE935 a/v receiver Kenwood KR-9600 AM/FM stereo receiver (vintage 1975) Russound AB-2 receiver switch to RF-3 Teac PD-D1200 5-disk cd changer Technics SL-1950 turntable/AT LS500 cartridge Sega Genesis game player Sub: None yet rock on! Quote Link to comment Share on other sites More sharing options...
TVodhanel Posted July 21, 2001 Share Posted July 21, 2001 Yes,the SV PCs have a linelevel HP---100hz if memory serves...12dB/octave. Ideally, yes---you'd like to see some adjustability there. But to try to customize the amp would be a very expensive issue. And I'm not sure if there's a real need regardless. Since the guys looking for all the adjustability are the ones (usually)willing/wanting to spend the money on a good external crossover box anyway(Marchand and maybe the 3400cx). TV Quote Link to comment Share on other sites More sharing options...
boa12 Posted July 21, 2001 Author Share Posted July 21, 2001 tv, thank you. imagine they use a high pass for a smoother roll-off to the mains in concert w/ the low pass? could u give a brief tech explanation for a high pass? iow, why do most subs seem to use 'em? and doesn't the high pass also filter on the sub speaker level connections? when connecting thru the sub, isn't the low pass good enough & especially if folks want to send more bass to their bigger front speaks? is this another one of those THX standards engrained in our equipment? all the subs do seem to use that high pass. some switchable between 80&100hz, so no knock on svs here. just looking to u for the tech insight. external crossover - may have to look into that. especially a line level. may take care of that fixed cut-off at 80hz (& my griping on these receiver makers/thx standards) This message has been edited by boa12 on 07-21-2001 at 03:44 PM Quote Link to comment Share on other sites More sharing options...
TVodhanel Posted July 22, 2001 Share Posted July 22, 2001 >>>tv, thank you. imagine they use a high pass for a smoother roll-off to the mains in concert w/ the low pass?<<< in theory,yes. Once you add a quality subwoofer...one of the primary benefits is going to be relieving the main speakers of the responsibility of producing the low bass. This is usually down in the DD decoder's internal bass-management circuits. >>> could u give a brief tech explanation for a high pass? iow, why do most subs seem to use 'em?<<< Probably just an inexpensive feature to add...that acts as sort of a safety-net for anyone purchasing the subwoofer that's not going to use it with a component that includes some sort of crossover network.(like a DD decoder).Unless you can charge a ton of money for the product---you're not going to be able to build in a lot of flexibility here. >>>and doesn't the high pass also filter on the sub speaker level connections?<<< They have their own passive network. Typically a 6dB/octave slope. Since it's passive...it's exact crossover point is going to depend on the impedence load of the speakers you're using. That's why it's usually a better idea to use the linelevel ins/outs if you HAVE to depend on the subwoofer to HP the mains. >>> when connecting thru the sub, isn't the low pass good enough & especially if folks want to send more bass to their bigger front speaks?<<< Well, the LP(lowpass) is only to affect the *lows* that are passing through to the subwoofer for reproduction. This is the crossover *knob* you see on the subs. >>> is this another one of those THX standards engrained in our equipment? all the subs do seem to use that high pass. some switchable between 80&100hz, so no knock on svs here. just looking to u for the tech insight. <<< Actually, we should be thanking god for THX in many regards dealing with this hobby. I'm not a huge fan of their subwoofer requirements...but they have made things one hell of a lot easier for us...in ways few people realize. Tomlison Holman is a true icon in the industry...if you think *bass management* is a mess now(with all the different manufacturers offering slightly skewed variations on a theme)...god help us all if Holman and THX didn't offer any insight. Remember the older yamaha decoders with a built in NON-adjustable 200hz setting for any speaker set to small....yikes! >>>external crossover - may have to look into that. especially a line level. may take care of that fixed cut-off at 80hz (& my griping on these receiver makers/thx standards<<< Something like the behringer cx3400 might work for you...it offers adjustments down to 44hz I believe. TV Quote Link to comment Share on other sites More sharing options...
boa12 Posted July 22, 2001 Author Share Posted July 22, 2001 thanks so much tv. you're an audio angel from heaven for my anal tech inquiring mind ------------------ Klipsch KLF 30 (front), KLF C-7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnect & Monster CX-2 biwire & Z1 cable Marantz SR-8000 receiver Sony DVP-C650D 5-disk cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Scientific Atlanta Explorer 2000 digital cable box Boa's Listenin Lounge: Klipsch RF-3 (front), RC-3, cheap little Technics (rear) Monster MCX Biwires Sony STR-DE935 a/v receiver Kenwood KR-9600 AM/FM stereo receiver (vintage 1975) Russound AB-2 receiver switch to RF-3 Teac PD-D1200 5-disk cd changer Technics SL-1950 turntable/AT LS500 cartridge Sega Genesis game player Sub: None yet rock on! Quote Link to comment Share on other sites More sharing options...
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