philly0116 Posted June 24, 2013 Share Posted June 24, 2013 Just curious what other members have done to improve the bass on their La Scalas. I keep seeeing this picture come up? Anyone done this and had success? Looks like it would work...... Quote Link to comment Share on other sites More sharing options...
Guest David H Posted June 24, 2013 Share Posted June 24, 2013 Just curious what other members have done to improve the bass on their La Scalas. I keep seeeing this picture come up? Anyone done this and had success? Looks like it would work...... I have done a version of that mod, simple and effective. Dave Quote Link to comment Share on other sites More sharing options...
Guest " " Posted June 24, 2013 Share Posted June 24, 2013 Tha mod works. You can also enclose the horn section, cut out the inside doghouse top with a router, and put the mod behind the horn access plate that you would install. Quote Link to comment Share on other sites More sharing options...
OO1 Posted June 24, 2013 Share Posted June 24, 2013 I tried the upper enclosed horn modification and the lower one that you are showing - both work but nothing to really brag about - it adds some bass effect -- but this aint like a Cornwall - I find it alters the quality sound out of the Original LasCala setup - - the real improvement is done by adding a subwoofer - setup - like the SW-15 series from Klipsch http://www.klipsch.com/sw-15 - http://www.klipsch.com/sw-15-ii - these subs alone bring out the low frequencies that the Lascala cannot reach - a single is sufficient - as it also carries a passive radiator - -Klipsch had another solution which was the way the original design was made to work - simply adding a second Lascala bass bin - -good luck - 1 Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted June 25, 2013 Share Posted June 25, 2013 I'd pass on the SW15. I had one years a go and it was very loose and sloppy. There are much better subs available. Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 26, 2013 Share Posted June 26, 2013 it adds some bass effect -- but this aint like a Cornwall - I find it alters the quality sound out of the Original LasCala setup Of course it isn't like Cornwall bass. That would be awful! []I'm finally getting around to modding one of the pairs of LS that I have. I'll give a more hands on comparison once I'm done. If the mod is done correctly, it shold retain the snap/speed of LS bass, but give a little more output in the bass. If you do the filter mod to go along with it, they are flat to about 30Hz. I wouldn't really call that 'adds some bass effect'. - the real improvement is done by adding a subwoofer - setup - like the SW-15 series from Klipsch http://www.klipsch.com/sw-15 - http://www.klipsch.com/sw-15-ii - these subs alone bring out the low frequencies that the Lascala cannot reach - a single is sufficient - as it also carries a passive radiator - This is a lot more expensive and takes up more room. You also have to deal with the correct placent for the room. I still think most LS are a little too hot in the mids. Dropping the mids back a coupld of db and the tonal balance is much improved. Kinda like the mod for original Heresy cabs. Bruce 2 Quote Link to comment Share on other sites More sharing options...
tromprof Posted June 26, 2013 Share Posted June 26, 2013 I am sure if the mod is done right you will get a good result, but I don't think it will do much for their resale value. I built a tuba table sub for mine. Yes it is big, yes it probably cost more than the mod, but the sound matches perfectly with the La Scalas and is good to an easy 25HZ. Also no impact on the La Scalas value. There are many good horn sub plans out there that would work as well (I also have a Cinema F20 but it is refrigerator size). If you have the room do the sub, if not do the mod knowing what the true cost is. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted June 26, 2013 Share Posted June 26, 2013 (edited) Just curious what other members have done to improve the bass on their La Scalas. I keep seeeing this picture come up? Anyone done this and had success? Looks like it would work...... Yes and yes. [y] I did it by enclosing the backs and modifying the networks per the collective advice of djk and BEC. The networks were temporarily outside the boxes until dialed in. Edited November 14, 2013 by DizRotus Quote Link to comment Share on other sites More sharing options...
OO1 Posted June 27, 2013 Share Posted June 27, 2013 Marvel - can you please elaborate on the filter mod - ( If you do the filter mod to go along with it, they are flat to about 30Hz. I wouldn't really call that 'adds some bass effect'.) Quote Link to comment Share on other sites More sharing options...
Marvel Posted June 27, 2013 Share Posted June 27, 2013 If I can find my notes from what Dennis has posted in the past. [*-)] Bruce Quote Link to comment Share on other sites More sharing options...
Don Richard Posted June 27, 2013 Share Posted June 27, 2013 If you do the filter mod to go along with it, they are flat to about 30Hz. I wouldn't really call that 'adds some bass effect'. The BR mod can go lower but with reduced output in the ports' operating range compared to the bass horn's output. Flattening the frequency response by xover mods will work but will cause sensitivity loss. How much loss of sensitivity are we talking about? Quote Link to comment Share on other sites More sharing options...
DizRotus Posted June 27, 2013 Share Posted June 27, 2013 The modified La Scalas I did for the local high school band director are powered by a vintage h/k 730 receiver (35 watts/channel when new). It can produce more clean volume in a large space than humans should be asked to endure. When I first tested them, it was apparent they were ever so slightly less efficient, but I drove them to "call the police" levels with an antique Dynaco SCA-35 tube integrated amp that puts out a mere 17 watts/channel . . . on a good day. If you use the search function you'll find many threads detailing various versions of this mod. You'll notice a common occurrence. Almost exclusively, those critical haven't tried it; those favorable have done it. It's not for everyone, but it's quick, inexpensive and easily reversible. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted February 14, 2014 Share Posted February 14, 2014 I tried the upper enclosed horn modification and the lower one that you are showing - both work but nothing to really brag about - it adds some bass effect -- but this aint like a Cornwall - I find it alters the quality sound out of the Original LasCala setup - - the real improvement is done by adding a subwoofer - setup - like the SW-15 series from Klipsch http://www.klipsch.com/sw-15 - http://www.klipsch.com/sw-15-ii - these subs alone bring out the low frequencies that the Lascala cannot reach - a single is sufficient - as it also carries a passive radiator - -Klipsch had another solution which was the way the original design was made to work - simply adding a second Lascala bass bin - -good luck - Why try to make a mini Altec Voice of the Theater bass section when you can just add a Tuba HT sub and get way more/better bass? 2 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted February 14, 2014 Share Posted February 14, 2014 If you do the filter mod to go along with it, they are flat to about 30Hz. I wouldn't really call that 'adds some bass effect'. The BR mod can go lower but with reduced output in the ports' operating range compared to the bass horn's output. Flattening the frequency response by xover mods will work but will cause sensitivity loss. How much loss of sensitivity are we talking about? Any PEQ to overcome this will increase cone motion and distortion. Just got done getting rid of this sort of thing on my FH-1's and the bass definition is far cleaner with a longer horn and a sub rather than this limited attempt. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted February 14, 2014 Share Posted February 14, 2014 (edited) This is a lot more expensive and takes up more room. You also have to deal with the correct placent for the room. I still think most LS are a little too hot in the mids. Dropping the mids back a coupld of db and the tonal balance is much improved. Kinda like the mod for original Heresy cabs. Bruce It's all about the price one is willing to pay, so to speak. Everyone wants a free lunch, I guess, but there is not such thing. We all know that having horn loaded subs is the best answer to TRUE solid bass and to get GREAT bass is EXPENSIVE. Some people throw out the WAF and make the room work. Even Khorns and Jubilee bass is diminished below 60 Hz. as all of my measuring bears out. But hey if you guys want to pursue this type of thing, just know that you will never experience the added dimension I speak of with an added box and some holes. But hey, either way, you may find it to be an improvment. Besides, It rasies the top section to a more desirable height, which has nothing to do with bass, but a potentially better sound at the sweet spot nonetheless. Edited February 14, 2014 by ClaudeJ1 1 Quote Link to comment Share on other sites More sharing options...
Sancho Panza Posted February 14, 2014 Share Posted February 14, 2014 Raising the top section is the main benefit, to me. Quote Link to comment Share on other sites More sharing options...
Sancho Panza Posted February 14, 2014 Share Posted February 14, 2014 Not that I've gotten a round to it. Quote Link to comment Share on other sites More sharing options...
consistent Posted June 15, 2022 Share Posted June 15, 2022 When I look at pictures of the NEW Jubilee is reminds of this mod done some years ago! Interesting to say the least! 1 Quote Link to comment Share on other sites More sharing options...
Islander Posted June 15, 2022 Share Posted June 15, 2022 The NEW Jubilee has a much longer bass horn than the La Scala, which makes all the difference. The older Jubilee also has a much longer bass horn, as does the Klipschorn (around 8’ long in the case of the Klipschorn, in contrast to the roughly 3’ of the La Scala’s bass horn). The trade off is that all those speakers are much bigger and heavier than the Scalas, which were originally designed to be small and light enough to be relatively practical for touring PA service. That’s also why they came in only one colour for the longest time: Stage Black. The Walnut, Cherry, and Black Ash options came much later, presumably when veneer was added. Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted June 15, 2022 Share Posted June 15, 2022 8 hours ago, consistent said: When I look at pictures of the NEW Jubilee is reminds of this mod done some years ago! Interesting to say the least! If you look closer you will see this mod doesn’t share anything with the New Jubilee since the ports mod are loaded directly by the room while the New Jubilee ports are actually horn loaded and then the horn is coupled to the room this is what is unique and why Roy was able to patent the concept. This mod is actually close in concept to past designs such as Altec A7 for example. miketn 2 Quote Link to comment Share on other sites More sharing options...
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