zuzu Posted March 29, 2007 Share Posted March 29, 2007 I am told by Velodyne that because my Klipsch RF-7's are so efficient I need a high efficency base reflex subwoofer such as their DSL 5000R or I need the DD 18.[ The DD 18 is too much money] They would work much better with my speakers than the DD 12.. I noticed that the DD 12, that I just bought, doesn't get to play very loud because The RF 7's jump in and I have little sound from the DD 12. My question is who else makes great base reflex high output very efficient subs? Quote Link to comment Share on other sites More sharing options...
Jay481985 Posted March 29, 2007 Share Posted March 29, 2007 JL Audio Quote Link to comment Share on other sites More sharing options...
Guest BobG Posted March 29, 2007 Share Posted March 29, 2007 This is an interesting point that most people miss. Because Klispch speakers have very high sensitivity our subwoofers must have greater output so as to keep up with our mains. Velodyne gave you very good advice. Quote Link to comment Share on other sites More sharing options...
mas Posted March 29, 2007 Share Posted March 29, 2007 BobG and Velodyne are correct. And for a long time Velodyne was the only source for a high output sub with sufficient sound quality that could come close to matching the Klipsch efficiency products. I know that that is how I ended up with the large Velodynes. Now a few other have joined the niche, but they will all cost you as the combination of sound quality and output does not come cheaply. But Velo, JL, Paradigm, Danley and a few other lines offer fine high output subs. Just a thought...Although I have not heard their entire line (but I am intimate with the CS Ultra), I would guess that SVS might come the closest for the least amount of money, simply due to their direct marketing approach eliminating the middleman cost markup. But I am sure others are more familiar with their other models and could provide more insight. But then I lack hands on with the high end Klipsch subs as well, so you might want to troll the Subwoofer thread. Just out of curiosity...why are you caught up with a bass reflex configuration? I would suggest dropping that requirement, as you will only further lessen the chances of finding a suitable sub! Quote Link to comment Share on other sites More sharing options...
jacksonbart Posted March 29, 2007 Share Posted March 29, 2007 A better question might be who doesn't make em. Quote Link to comment Share on other sites More sharing options...
mas Posted March 29, 2007 Share Posted March 29, 2007 A better question might be who doesn't make em. Haha! Well many certainly claim to! But I am not so sure that you want to necessarily combine the claim for high output and musicality in the same sentence. [] Quote Link to comment Share on other sites More sharing options...
Speedball Posted March 29, 2007 Share Posted March 29, 2007 What about a new Klipsch sub, are they not capable of high output? Quote Link to comment Share on other sites More sharing options...
TheEAR Posted March 29, 2007 Share Posted March 29, 2007 JL Audio JL Audio does not make any commercial bass reflex(ported subs),they are ALL sealed. [] Quote Link to comment Share on other sites More sharing options...
TheEAR Posted March 29, 2007 Share Posted March 29, 2007 A better question might be who doesn't make em. [^o)] What a great answer! Let give a slightly more informative one. The best price/prformance bass reflex(PORTED)subs are from HSU and SVS. Quote Link to comment Share on other sites More sharing options...
TheKillerTomato Posted March 29, 2007 Share Posted March 29, 2007 I currently use a cheapo JBL 150 watt sub, with the sub channel boosted to about +5 db and the gain at 60%, and my receiver tells me that the sub is too loud during the MCACC auto calibration. I understand how efficient our Klipsh speakers are, but couldn't you just turn up a sub? I'm looking at the HSU VTF 3.3, or the HO. I know that you know ten times as much as me about subs, Ear, from your posts at AVS - are you looking at picking up an HSU? Quote Link to comment Share on other sites More sharing options...
zuzu Posted March 29, 2007 Author Share Posted March 29, 2007 I scoured HSU and SVS web sites and could never find any mention of their subs being bass reflex. Why is that? Too complicated for the audience? marketing? ??? Quote Link to comment Share on other sites More sharing options...
bhendrix Posted March 29, 2007 Share Posted March 29, 2007 Here you go . . . KPT-684 Cinema Subwoofer The KPT-684 is a high output, bass-reflex subwoofer featuring advanced low-frequency driver design. Features Two 18-inch drivers Quote Link to comment Share on other sites More sharing options...
westcott Posted March 29, 2007 Share Posted March 29, 2007 Hard to beat the old RSW15 for performance\price ratio IMO. Every once in a while, I see a great deal on one for around a US$1000. Most other comparable subs are much more expensive or are not as flat across the frequency range, as you have discovered. Quote Link to comment Share on other sites More sharing options...
DrWho Posted March 29, 2007 Share Posted March 29, 2007 Would it help to mention that "bass reflex" is the same thing as "ported"? In fact, it's the same thing as "passive radiator" too - which most of the Klipsch subs are doing. Quote Link to comment Share on other sites More sharing options...
mas Posted March 29, 2007 Share Posted March 29, 2007 I scoured HSU and SVS web sites and could never find any mention of their subs being bass reflex. Why is that? Too complicated for the audience? marketing? ??? My guess would be that it doesn't matter, assuming that the unit is designed properly. And if they mentioned that the cabinet is ported, they did tell you! So at the risk of sounding rude (but meaning it in a tongue in cheek manner with my headed tilted slightly to the side with a big grin...), did it do any good? Knowing what you know, how much of a different did it make? You see, it doesn't really matter. Knowing up front simply helps you to understand the challanges that are faced by each design in achieving their goals. But none necessarily make the design better or worse in themselves. There are many excellent ported/bass reflex subs as well as many superb sealed subs (of which the JL and Velodyne models are). There are many other resultant properties that are MUCH more important than simply specifying one of several legitimate methods of loading the driver. I would suggest one focus on the total response achieved, and then simply marvel at the design used to achieve them afterwards and just how they addressed each of the limiting factors to achieve the final result. In other words, its like a car. You do not (or at least you should not) buy a car simply because it is 'turbocharged' (well, unless its a diesel where a turbocharger is a fundamental part of the design). But a turbocharger may be employed to address a particular limitation and to facilitate its final overall performance goals. There are many ways to reach the final destination. Using a reflex design is simply one of many valid methods of getting there. But it is not the only way. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted March 29, 2007 Share Posted March 29, 2007 A better question might be who doesn't make em. Haha! Well many certainly claim to! But I am not so sure that you want to necessarily combine the claim for high output and musicality in the same sentence. [] Amen Mark- preach it Bro! Musicality is what it's ALL about in the sub world as far as I'm concerned. It's easy to blow stuff up. Quote Link to comment Share on other sites More sharing options...
Jay481985 Posted March 30, 2007 Share Posted March 30, 2007 JL Audio JL Audio does not make any commercial bass reflex(ported subs),they are ALL sealed. [] I misread it, i thought reading that velodyne told him to get a dd series that those are sealed or acoustic spring subwoofer. I thought that was it. Now that I bass reflex I take that back. Also the danley is technically not a bass reflex its more of a tappered horn Quote Link to comment Share on other sites More sharing options...
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