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#21
Bass sounded balanced to me in Lowther room where most rooms had far to little or far too much. There were few rooms that had a balanced sound like the Lowther room. I only heard acoustic folk music in Lowther room so perhaps my assessment is unfair. I would have liked to have heard symphonic which is a good gauge to my ears, regardless things sounded nice in there. I did receive one report that upper register got hard when rock was played but I did not hear it.
 
#23
rjbond3rd said:
Hi Jon Ver Halen, did you get to hear any of the other rooms?
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Not too much, as I was mostly attending my room.

The problem with these shows is often source material. You may walk into a room where you don't like the style of music, or the particular recording is not good, and you walk out. The next cut may make the system come alive and musical as hell, but you did not hear it and so your recollection of the room is negative. If you don't have the time to hear something you are familiar with, you have not really heard the system. So listening over time is important, and very difficult to do in the course of an event like this. I simply did not have that opportunity due to the obligations of my room.

That is actually one of the reasons I try to play some of the old war horses of the hi-end, because a lot of audiophiles know the music and can relate to how my system sounds.
 
#24
Jon Ver Halen said:
Not too much, as I was mostly attending my room.

The problem with these shows is often source material. You may walk into a room where you don't like the style of music, or the particular recording is not good, and you walk out. The next cut may make the system come alive and musical as hell, but you did not hear it and so your recollection of the room is negative. If you don't have the time to hear something you are familiar with, you have not really heard the system. So listening over time is important, and very difficult to do in the course of an event like this. I simply did not have that opportunity due to the obligations of my room.

That is actually one of the reasons I try to play some of the old war horses of the hi-end, because a lot of audiophiles know the music and can relate to how my system sounds.
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excellent point, Jon - even though one can quickly get bored of overexposure to "classics", or current trends (anyone remember Sheffield Labs "I've got the music in Me"? ), at least the chances are arguably better that sonic judgments of even very short term sessions are made on a level playing field.

Then there are other factors as well that contribute to the overall impression of ease and comfort of the experience at shows like these, Without naming names ('cause it's been a couple of years and there were too many to remember), there are some rooms that you just don't want to leave, regardless of whether the program material is something you'd want on your desert island playlist - and others from which you can't escape quickly enough.
 
#26
Hi Jon,

Could you please reveal some details about the crossover (order, frequencies, alignment) that was used on the last Open Baffle at RMAF. I have some impression that the first order crossover was used, but that's just a guess.

Thanks

Vix
 
#28
Vix said:
Hi Jon,

Could you please reveal some details about the crossover (order, frequencies, alignment) that was used on the last Open Baffle at RMAF. I have some impression that the first order crossover was used, but that's just a guess.

Thanks

Vix
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The woofer low pass was set at 80 hz, 2nd order using the B5

The Lowther hi pass was set at 150 hz, 2nd order using the B5

No, this does not make any sense until you read Martin Kings article on Open Baffles describing why this does not make a hole in the mid-bass response.

The tweeter was first order passive at 10 Khz. No low pass on the Lowther. Basically a 2 uF cap, with a couple of resistors to attenuate the tweeter.
 
#29
Hi Tea-Bag

Yes and No. I also made a mock-up B5, using B1 buffer blocks instead of opamps and built an active crossover. In this case i was more curious to know what exact crossover points/ slopes, Q, worked for that particular setup.

Regards

Vix
 
#37
Jimmy D. said:
Hi Jon,

Have you heard Lowthers with Nelson's F5? I'd like to hear any thoughts on the combo?

BTW, your new speaker looks awesome indeed!

Thanks,
Jim
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Hi Jim:

Thanks for the kind words. Yes, the F5 on Lowthers is an extremely transparent pairing, more than enough power, and plenty of dynamics. I do slightly prefer the slightly sweet sound of the J2 over the F5, but that is personal bias. Both are extremely fine amps.
 
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