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Old 16th January 2012, 11:17 PM   #1041
a.wayne is offline a.wayne  United States
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Originally Posted by tvrgeek View Post
Best to voice drivers in at 1 watt input no xover , there naturnal positives and negatives will show here...

I am not following you here. 90% of what I would call vlocing a speaker and is tweaking the crossover in a multi-driver system where you have not just environment issues, but direct driver interference. (Unless of course, you are in the Louther camp) I do start at one watt. Or are you talking about room tuning and don't want the extra variables of multi-driver interference confusing the results? I have not had any luck going outside as I voice my speakers for the exact room where I am using them. A luxury OEM's do not have. Advantage DIY.
Voice drivers, Voice speakers , 2 different procedures.....
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Old 16th January 2012, 11:24 PM   #1042
Pano is offline Pano  United States
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1 watt is a nice guideline, but it would be way loud with my divers. With other drivers it might not be enough. How about SPL? Like 85dB at 1M or something?
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Old 16th January 2012, 11:35 PM   #1043
a.wayne is offline a.wayne  United States
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Yes i can see that with your drivers, i would run the volume as loud as necessary for you to get an sonic signature from the driver, Ideally the xover should be minimal enuff to keep the sonic character of the driver , but not too minimal. Drivers with sibilance issues, coloration, noisy frames, etc, will be obvious to you ...

I usually like to hold the drivers or get as close as possible for tweeters, mid units and even for bass units...

Last edited by a.wayne; 16th January 2012 at 11:37 PM.
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Old 16th January 2012, 11:40 PM   #1044
tvrgeek is offline tvrgeek  United States
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Loud enough to excite things in the room, like china cabinet backs and nick-knacks not on soft feet! It could be my environment, but much softer and the background makes it hard to pick out problems. In my office where I do the basic setup, I use 1V RMS as a standard so I can compare things later. 1W would be way too loud as you say. 1V is enough to send my wife to the other end of the house and sometimes I wear ear protectors. It must work. I was playing around with a tweeter today and found I can still hear 18K. That surprised me due to my age.

a.wayne, I guess I don't follow you on voicing drivers. Are you talking about modifications to the actual driver as would be done by the driver designer? That is out of my league. I just sent my paycheck to Seas, Scan-Speak or SB. Playing with the SB tweeter. Better than it is given credit for.
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Old 16th January 2012, 11:50 PM   #1045
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I'm a fan of SEAS, Morel best value for tweeter. A good starter would be SEAS drivers and tweeters. It's been awhile i have not heard any of this new stuff to give any advice.

I build my own ribbon drivers now whenever i want to fool around and use SEAS woofers ...
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Old 16th January 2012, 11:54 PM   #1046
tvrgeek is offline tvrgeek  United States
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Originally Posted by a.wayne View Post
Yes i can see that with your drivers, i would run the volume as loud as necessary for you to get an sonic signature from the driver, Ideally the xover should be minimal enuff to keep the sonic character of the driver , but not too minimal. Drivers with sibilance issues, coloration, noisy frames, etc, will be obvious to you ...

I usually like to hold the drivers or get as close as possible for tweeters, mid units and even for bass units...
If you play with metal drivers, you will find "minimal" is a disaster. I don't have enough experience to correlate what I hear in a tweeter by itself to what I will get out of it in a system, unless it is defective or just plain garbage.
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Old 16th January 2012, 11:56 PM   #1047
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Understood .... !!!
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Old 17th January 2012, 12:06 AM   #1048
tvrgeek is offline tvrgeek  United States
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Originally Posted by a.wayne View Post
I'm a fan of SEAS, Morel best value for tweeter. A good starter would be SEAS drivers and tweeters. It's been awhile i have not heard any of this new stuff to give any advice.

I build my own ribbon drivers now whenever i want to fool around and use SEAS woofers ...
I have been playing with the 27TB metal dome series, but am leaning back to the cheaper little SB or the HDS. Someday I'll spring for a big Scan Speak. I have built several systems using "new" cone type mid/bass like metal or carbon. I am leaning back to paper. I guess I just don't like metal. I like the Peerless and Usher. There is a Seas "reed" paper that looks promising. Bamboo is turning up, but so far on poor motors so I can't comment.

You'll have to tell me about the ribbons someday. I built one out of Speaker Builder years ago. It sounded like what it was, foil between two screws. The ribbons I have heard never impressed me. They have it in theory in spades. I went as far as building a speaker with no moving parts. Crone effect. It did make noise, and enough ozone to kill the Western world. Copier HV supply, wire-wrap mother board pins for the probes and a copper screen for the grid. I went back to buying my drivers.
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Old 18th January 2012, 06:12 PM   #1049
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Default SOUND QUALITY VS MEASUREMENT

It does appear that Soulution Amplifiers have the measurement crown, Sound..?


The following sentence appeared in a review of the Soulution 710 published in October 2005 in the German magazine Stereo: "Lab chief technician Rolf Hähle has hung the test certificate for the Soulution 710 in a golden frame over his measuring desk." I wouldn't go quite that far, but the Soulution 710 is definitely one of the best-measuring amplifiers I have encountered. Color me impressed.—John Atkinson

Soulution 710 power amplifier Measurements | Stereophile.com


This amplifier channel's proprietary 12MHz-bandwidth zero-feedback voltage amplifier is sealed and potted to avoid prying eyes. 14 bipolar Sanken output transistors couple to a thick temperature-controlled copper bar. Schürmann explained how his circuit does not rely on common transistor matching to operate perfectly within tightly regulated performance specs.


6moons industry features: A visit to Soulution


What are they doing differently from Chris Hansen , who's zero NFB AYRE amplifiers do not measure near as well ..?
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Old 18th January 2012, 07:26 PM   #1050
Pano is offline Pano  United States
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Interesting comments on the "sound" of the amp, too.
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