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shkumar4963

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About shkumar4963

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  1. I am looking to buy a vintage Class AB amp (Yamaha m70) on Craig's list fir my new LS50. three questions. 1. Do they work well with ls50? 2. Is 300 usd a fair price? 3. Is there a quick way to confirm that they do not need repairs? Thanks
  2. Thanks to everyone. Lots of good suggestions. To clarify, my intention was not to do this with my speakers but to better understand why or why not it could be done. At the first glance, the logic about 20 db dynamic range made sense to me but on further thinking it did not seem right. Assuming that the speakers are rated at 100wrms and are audiophile speakers, they must be capable of handling dynamic peaks of 20 db (if that is what we are assuming peaks to be) at 100 wrms power. That means while speakers can take only 100 watts rms power, the driver excursions or movements are capable of dynamic peaks of 20 db. In that case as long as the rms power stays within 100 watts, we need not worry about the 20 db dynamic peaks. Am i thinking about this incorrectly? Also if RMS power is of concern then we just have to limit the overall volume to less than 91 db. so the question is what base boost (how many db at 50 hz and how many db at 32 hz] can be applied without damaging the speakers?
  3. I understand 16 times power. So let's see if it will create a problem. For 85 db it takes 1 watt. So for 91 db (which is very loud) it will take 4 watts. And if I increase low frequencies to 12 db it will take 64 watts. The speaker can take 100 watts continuous power and my amplifiers are 100 watts continuous power pc. So it should not be dangerous for speakers or amplifier. Now did I make a calculation mistake (which is highly likely).
  4. Can I use PEQ to lift bass response of a standmount speaker? If yes, what is the limit of this approach? How much increase at lower frequencies (in db) is accoetable? For a speaker with -6db point at 50 hz and -12 db at 32 hz, can I raise 12 db using PEQ for a flat frequency response till 32 hz. That would be sufficient for all kind of music except for home theater. one negative could be danger of burning the speaker by pumping so much energy in the speaker at that low frequency. How do I estimate what is the max energy I can put in the speaker safely? For average music listening levels ( about 86 to 90 db at 1 m), is there a danger for kef ls50.
  5. In other words, what neasurements can show if the sub is of good quality or not. Because I don't want to spend a lot of time in set up if it is not a good sub or if ls50 perform the best alone.
  6. Thanks bd. What measurements would help? I have REW.
  7. Please comment if others have seen the same with LS50. Or is it because of poor quality or sub or poor quality of set up by me.
  8. sds 10 is a 300 watts 10 inch driver with passive radiator design from Sunfire. A company that was started by Carver of Carver amp fame.
  9. I generally listen to music a low volumes. But when I tried using Sunfire sds 10, it seemed like it took something away from the ls50. The overall sound was worse. The woofer frequencies were not well melded with rest of the music. Not sure if I am describing ot correctly. But the overall clarity and musicality of music was not as good. I need a better vocabulary to better describe what I am hearing and experiencing.
  10. @@roh008. I can guess several reasons that may be responsible for me not seeing an improvement when using sunfire sds 10 with my ls50. I will leave to others to comment if my guesses make sense or not. 1. The sub was not well integrated with ls50. I had spend about an hour in order to see if I see any improvement before spending more time. And since I did not see any improvements I dis not spend more time and returned the sub. 2. Sds 10 were of poor quality. A better and more expensive sub may show some improvement. 3. The music that I play does not require much lower frequencies. I can usually get a -3 db response till 50 hz by using equalizer and bass boost with ls50 alone. And that may be good enough for most of my music which is mostly jazz vocals with piano and guitar and occasionally kick drum. 4. I do enjoy clean vocals with not too much bass, especially the kind of bass that ruins vocal clarity. What I am wondering is if I should give it another try. And if yes, should I try the same or similar sub and try to align it better using REW or get a much better sub before spending more time in it. Would welcome others comments and results using ls50 and a sub or two.
  11. I should have said pursuit of science behind audio. With so much misinformation and half truths being circulated in this field, I am hoping to find out what works and why.
  12. I have kef ls50 and tried one sub sunfire sds 10. The results were not that much better. It seemed that sub is riding on top of the ls50 rather than complementing it. Would love to hear others opinions.
  13. Interested in learning and sharing information about the science of audio reproduction.
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