- Thread Starter
- #41
I have not.Amir, have you ever measured Mark Levinson No.53 shown in the photo? I am eagerly waiting to see the measurements. Thank you.
I have not.Amir, have you ever measured Mark Levinson No.53 shown in the photo? I am eagerly waiting to see the measurements. Thank you.
No. My listening tests where I stress the speaker to see how loud it plays and how much dynamic range it has is an important factor. From my LS50 review:Hi @amirm
Thanks for the review.
I can't help but notice that you have failed to recommend other speakers which exhibit much less deviation from linearity both on-axis and off-axis, the KEF LS50 being the best example that comes to mind.
Is price a consideration when you decide what to recommend?
There was no bass to speak of. Turning up the volume resulted in distortion as I could visibly see the little woofer trying to keep up. Definitely not a good choice for a large space.
No. My listening tests where I stress the speaker to see how loud it plays and how much dynamic range it has is an important factor. From my LS50 review:
The frequency response of the LS50 is also quite rough.
So I am not following you saying it is better.
The corporate account i've used with UPS can get something like a 130lb oversized pelican case priority overnighted with 50000 dollars insurance for around 300 bucks. Shipping companies charge consumers an unimaginable amount of markup.
EQ for Polk Audio T50 computed from ASR data
Preference Score 3.9 with EQ 5.6
Generated from http://github.com/pierreaubert/spinorama/generate_peqs.py v0.8
Dated: 2021-07-12-08:39:55
Preamp: -1.8 dB
Filter 1: ON PK Fc 973 Hz Gain -4.24 dB Q 4.76
Filter 2: ON PK Fc 12895 Hz Gain -2.87 dB Q 0.86
Filter 3: ON PK Fc 2593 Hz Gain +1.70 dB Q 1.79
Filter 4: ON PK Fc 1570 Hz Gain +1.29 dB Q 12.00
Filter 5: ON PK Fc 411 Hz Gain +0.86 dB Q 1.81
Filter 6: ON PK Fc 1188 Hz Gain -1.59 dB Q 12.00
Filter 7: ON PK Fc 2322 Hz Gain +0.45 dB Q 12.00
Filter 8: ON PK Fc 2538 Hz Gain -1.33 dB Q 12.00
Filter 9: ON PK Fc 5803 Hz Gain -1.05 dB Q 3.76
Filter 10: ON PK Fc 4868 Hz Gain -0.48 dB Q 12.00
Filter 11: ON PK Fc 3987 Hz Gain +1.48 dB Q 12.00
Filter 12: ON PK Fc 1770 Hz Gain -0.72 dB Q 12.00
Filter 13: ON PK Fc 3518 Hz Gain +0.58 dB Q 12.00
Filter 14: ON PK Fc 521 Hz Gain +1.31 dB Q 12.00
Filter 15: ON PK Fc 581 Hz Gain +0.76 dB Q 12.00
Filter 16: ON PK Fc 637 Hz Gain -1.01 dB Q 7.23
Filter 17: ON PK Fc 1392 Hz Gain +0.87 dB Q 12.00
Filter 18: ON PK Fc 13243 Hz Gain +0.33 dB Q 10.42
Filter 19: ON PK Fc 2134 Hz Gain -0.62 dB Q 12.00
Filter 20: ON PK Fc 890 Hz Gain -0.60 dB Q 12.00
If you ship to Alaska, Hawaii or territories, the guaranteed times change. If you ship all the way across the country, the rates change... you'd be surprised how many miles an expedited package travels in trucks, especially with UPS. Many packages never sit in one place. They go from a truck to a conveyor network to another truck without ever going into a bin or onto a shelf. Very few speakers ever go on a plane inside the US.Can it ship the furthest two point in USA? I assume it has to use flight for that because trucks are not that fast. What about international if since they already use flight within USA?
Thanks. Interesting to see passive radiators below the mid-bass driver. typically I see them on the sides or on the rear. wonder if mounting on the front baffle was done for performance or looks.It has one. The other two are passive radiators.
I'd have to guess sales/looks. In this price zone the extra cones look like "more" vs a ported competator that is obviously a simple 2-way.Thanks. Interesting to see passive radiators below the mid-bass driver. typically I see them on the sides or on the rear. wonder if mounting on the front baffle was done for performance or looks.
Ahh so that's why all this push to eradicate the USPS has been going on for all these years.
I think price does play a role, as does the bass performance. The -3db point for the T50 seems to be between 40-50Hz, while for the LS50 around 70-80hz. Additionally, the bass roloff is much steeper on the LS50. So with some EQ I can imagine the T50 sounding better, especially since you have to knock down peaks rather than boost dips ?I didn't say better - I was referring to the deviations in the PIR (charts below).
Anyway, I understand your point about distortion and DR. Thx. I am covered.
View attachment 140629
I think price does play a role, as does the bass performance. The -3db point for the T50 seems to be between 40-50Hz, while for the LS50 around 70-80hz. Additionally, the bass roloff is much steeper on the LS50. So with some EQ I can imagine the T50 sounding better, especially since you have to knock down peaks rather than boost dips ?
High-pass filter with a slope of 18 dB per octave, maybe.Could somene pls explain to me how this brutal abyss happens in the deep regions?
Thats realy step.
Amir has access to a commercial account thanks to member.If you ship to Alaska, Hawaii or territories, the guaranteed times change. If you ship all the way across the country, the rates change... you'd be surprised how many miles an expedited package travels in trucks, especially with UPS. Many packages never sit in one place. They go from a truck to a conveyor network to another truck without ever going into a bin or onto a shelf. Very few speakers ever go on a plane inside the US.
Also, yeah, the discounts are huge with a big exclusive contract. It is a shame Amir can't access the discount I get at work.
Could somene pls explain to me how this brutal abyss happens in the deep regions?
Thats realy step.
High-pass filter with a slope of 18 dB per octave, maybe.
It's based on the physics involved with employing passive radiators. The low frequency energy gets shifted up in frequency.
I always thought passive membranes are nearly similar to ports?
If done correctly, it will be steeper. Polk did a perfect job in this case.
https://www.diysubwoofers.org/prd/