Curious_George Posted October 16, 2021 Share Posted October 16, 2021 36 minutes ago, ClaudeJ1 said: But go ahead and follow whatever path you choose for improvement, knowing you have made some compromises in the process. Enjoy the music. Everything in life is a compromise. Did we really have to debate an audio topic in order for me to make that statement for you to realize? 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 16, 2021 Share Posted October 16, 2021 1 hour ago, Curious_George said: Exactly. Thank you. This is all I was alluding to. Claude, you need to make up your mind. One minute you state the above, which I agree with, other times, you say the opposite like "half-baked". It can't be both in reality. If you want to flounder, then that is your prerogative. It is half baked compared to a horn subwoofer, where the low IM distortion of the LaScala is preserved (espcially if a K-43 is used), while extending the bass with similar TRANSIENT response to get you the TWO strong missing octaves instead of extending only ONE rather weakly in comparison while adding IMD. But it's still only half of an improvement to put it another way. 1 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 16, 2021 Share Posted October 16, 2021 1 hour ago, Curious_George said: Everything in life is a compromise. Did we really have to debate an audio topic in order for me to make that statement for you to realize? We are not talking about life here, we are talking about BASS EXTENSION. This is a Klipsch SPEAKER forum. There is no DEBATE, only choices when presented with FACTS and Experience. Your choice. 1 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 16, 2021 Share Posted October 16, 2021 5 minutes ago, ClaudeJ1 said: We are not talking about life here, we are talking about BASS EXTENSION. This is a Klipsch SPEAKER forum. There is no DEBATE, only choices when presented with FACTS and Experience. Your choice. It is hard to refute facts, data and experience, but I don't recall doing any of those three. I made an observation that a lot of opinions on this forum are "half-baked" to use your descriptive words. NOW THAT is up for debate. 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 16, 2021 Share Posted October 16, 2021 2 hours ago, Curious_George said: To get the full benefit from the LaScala bass modification, Dennis indicated that the high pass filter EQ was needed (and it is). I suspect most people who do modify their LaScala's do not use the EQ and this is where the "disappointment" may come in. Almost every speaker could benefit from a subwoofer, even some "subwoofers", if that makes any sense... I like a full music spectrum, but not everyone wants or needs much below 30Hz. Can you please explain more on what is needed here to utilize the high pass filter EQ you reference? Does that mean I would need an equalizer or DSP? Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 16, 2021 Share Posted October 16, 2021 5 minutes ago, Limberpine said: Can you please explain more on what is needed here to utilize the high pass filter EQ you reference? Does that mean I would need an equalizer or DSP? The below circuit is an example of what you would need to realize the high pass EQ filter electronically. This is only the high pass EQ filter circuit, no power supply is shown. This circuit could be inserted into your preamp's tape loop function (in/out). On some preamps, there is a specific "EQ" loop for external processors, such as this high pass filter. If you need a power supply circuit let me know. Quote Link to comment Share on other sites More sharing options...
billybob Posted October 16, 2021 Share Posted October 16, 2021 12 minutes ago, Curious_George said: The below circuit is an example of what you would need to realize the high pass EQ filter electronically. This is only the high pass EQ filter circuit, no power supply is shown. This circuit could be inserted into your preamp's tape loop function (in/out). On some preamps, there is a specific "EQ" loop for external processors, such as this high pass filter. If you need a power supply circuit let me know. Are there any off the shelf units products could buy? And what about an old school EQ, like an SE-77 Sansui 12 band with 5+ boost that would work? Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 16, 2021 Share Posted October 16, 2021 1 hour ago, Curious_George said: It is hard to refute facts, data and experience, but I don't recall doing any of those three. I made an observation that a lot of opinions on this forum are "half-baked" to use your descriptive words. NOW THAT is up for debate. It's devolved into a half-baked debate about a half baked option. I'm outta here! 1 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 16, 2021 Share Posted October 16, 2021 16 minutes ago, ClaudeJ1 said: I'm outta here! Au revoir as Pepe Le Pew would say... 1 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 16, 2021 Share Posted October 16, 2021 1 hour ago, billybob said: Are there any off the shelf units products could buy? And what about an old school EQ, like an SE-77 Sansui 12 band with 5+ boost that would work? I'm not sure. I'd have to do some research. The problem with a regular EQ is the bandwidth or Q of the circuit. It would probably be too wide and affect to many frequencies on either side of the 40Hz boost region. In addition, the high pass filter EQ has a built-in "infrasonic" slope to attenuate the lower frequencies from unloading the woofer at 1/2 the port tuning frequency. 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 16, 2021 Share Posted October 16, 2021 1 hour ago, Curious_George said: The below circuit is an example of what you would need to realize the high pass EQ filter electronically. This is only the high pass EQ filter circuit, no power supply is shown. This circuit could be inserted into your preamp's tape loop function (in/out). On some preamps, there is a specific "EQ" loop for external processors, such as this high pass filter. If you need a power supply circuit let me know. Okay, so this is sorta like a powered version of a notch filter that I have used with single driver speakers? This would plug into the in/out tape RCAs of my preamp and I would power it up with the rest of the system? Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 16, 2021 Share Posted October 16, 2021 Here's a better solution if you are building risers anyhow. If you want to build something that works and is cheap, built 2 of these Anarchy tapped horns and use them as RISERS under LaScalas. Use two of these amplifiers to drive them and leave the LaScalas alone. Stick the port end into a corner or against a wall behind each LaScala. Look at the RED curve which is what comes out of the mouth. Should cost less than $300 to do for both channels. REAL BASS at work, without added distortion. Plans are in the PDF by Little Mike. https://www.parts-express.com/Dayton-Audio-SA25-25W-Subwoofer-Amplifier-300-782 Exodus Anarchy 25hz TH.pdf 5 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 16, 2021 Share Posted October 16, 2021 11 minutes ago, ClaudeJ1 said: Here's a better solution if you are building risers anyhow. If you want to build something that works and is cheap, built 2 of these Anarchy tapped horns and use them as RISERS under LaScalas. Use two of these amplifiers to drive them and leave the LaScalas alone. Stick the port end into a corner or against a wall behind each LaScala. Look at the RED curve which is what comes out of the mouth. Should cost less than $300 to do for both channels. REAL BASS at work, without added distortion. Plans are in the PDF by Little Mike. https://www.parts-express.com/Dayton-Audio-SA25-25W-Subwoofer-Amplifier-300-782 Exodus Anarchy 25hz TH.pdf 466.29 kB · 0 downloads So, this would be an enclosed riser that sits underneath the La Scala and wouldn't need the doghouse cutout? Also, could it be scaled to work as a riser that fits under the the La Scala, so that it looks flush on all side? 1 Quote Link to comment Share on other sites More sharing options...
Marvel Posted October 16, 2021 Author Share Posted October 16, 2021 Even though my MWMs give me the best bass I've ever had in my house (knowing there is lower bass to be had for HT), I never was dissatisfied with the bass in my La Scalas. All I have ever said is that a lot of people either don't have the room to place a sub or feel the need for one. Dennis' mod does give you more, without taking up any floor space, or without even showing you have modded the cabinets. I won't always have room for these huge bins. If I still have a pair of LS, I will try Dennis' mods. I'll also make sure to add the filter so it is complete and correct. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted October 16, 2021 Share Posted October 16, 2021 34 minutes ago, ClaudeJ1 said: Here's a better solution if you are building risers anyhow. If you want to build something that works and is cheap, built 2 of these Anarchy tapped horns and use them as RISERS under LaScalas. Use two of these amplifiers to drive them and leave the LaScalas alone. Stick the port end into a corner or against a wall behind each LaScala. Look at the RED curve which is what comes out of the mouth. Should cost less than $300 to do for both channels. REAL BASS at work, without added distortion. Plans are in the PDF by Little Mike. https://www.parts-express.com/Dayton-Audio-SA25-25W-Subwoofer-Amplifier-300-782 Exodus Anarchy 25hz TH.pdf 466.29 kB · 0 downloads I believe Mike @MookieStl built two of those to use under Belles. 1 Quote Link to comment Share on other sites More sharing options...
MookieStl Posted October 17, 2021 Share Posted October 17, 2021 19 minutes ago, DizRotus said: I believe Mike @MookieStl built two of those to use under Belles. Yup. Turned out nice and added that little kick at the bottom end. 4 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 17, 2021 Share Posted October 17, 2021 That looks like a great sub project, no doubt. I've not heard one yet. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 17, 2021 Share Posted October 17, 2021 Unfortunately, it looks like the Exodus 6.5" woofer is no longer available or hard to find at best. Here are the TS specs if you want to substitute another woofer for the project. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted October 17, 2021 Share Posted October 17, 2021 https://www.diysoundgroup.com/speaker-parts/speaker-components/woofers/anarchy7-4ohm.html “Availability: In stock” Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 17, 2021 Share Posted October 17, 2021 2 minutes ago, DizRotus said: https://www.diysoundgroup.com/speaker-parts/speaker-components/woofers/anarchy7-4ohm.html Availability: In stock This is the one that was used for the curves I uploaded. https://www.parts-express.com/Tang-Band-W6-1139SIF-6-1-2-Paper-Cone-Subwoofer-Speaker-264-919 Quote Link to comment Share on other sites More sharing options...
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