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Subwoofers 80hz and Down under!

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  #11  
Old 10-28-2012, 05:38 PM
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This was a great read! The Velodyne digital sub system is really useful.......WOW!!! (I have not seen it before) Bet your system sounds great now.
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  #12  
Old 10-28-2012, 05:39 PM
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Quote:
Originally Posted by Wasatch View Post
No problem, I can live without.
I thought the same until I added a G1 to my system. If the sub is integrated properly you will not look back........
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  #13  
Old 10-28-2012, 05:57 PM
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Originally Posted by jfray View Post
This was a great read! The Velodyne digital sub system is really useful.......WOW!!! (I have not seen it before) Bet your system sounds great now.
Josh, the Velodyne SMS-1 is a fabulous tool for HT and for use as a diagnostic tool, but it is not up to the job as an active crossover in a two channel system (I tried it). However, to me, the ability to generate, read, and display frequency sweeps in real time is alone enough to make it worth buying. If you have ever plotted frequency responses by hand, you know what I mean. Ironically, the main thing it taught me was that if you locate a sub correctly, level match its volume to the rest of the system and adjust relative phase correctly, you probably do not need any EQ.
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  #14  
Old 10-28-2012, 06:02 PM
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Originally Posted by chessman View Post
Josh, the Velodyne SMS-1 is a fabulous tool for HT and for use as a diagnostic tool, but it is not up to the job as an active crossover in a two channel system (I tried it). However, to me, the ability to generate, read, and display frequency sweeps in real time is alone enough to make it worth buying. If you have ever plotted frequency responses by hand, you know what I mean. Ironically, the main thing it taught me was that if you locate a sub correctly, level match its volume to the rest of the system and adjust relative phase correctly, you probably do not need any EQ.
I really like the ability to display the frequency sweeps....... This must make the integration of the sub much easier.
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  #15  
Old 10-28-2012, 06:08 PM
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Originally Posted by jfray View Post
I really like the ability to display the frequency sweeps....... This must make the integration of the sub much easier.
Josh, it is crazy easy for HT. If you have a "W" pattern at the crossover point you have a relative phase problem. Adjust the relative phase (either in SMS-1 or at sub, not both) until you have a flat response at the crossover point and you are done. Since it is a real time, continuous sweep you can do it in under a minute.
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  #16  
Old 10-28-2012, 06:24 PM
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Randy.......Congratulations on a successful installation. I am glad your final judgment for gain was trusting your ears and not the graph. You may find yourself tweaking the gain one way or the other for the next few days as you listen to assorted recordings, but you will eventually find that one setting that works the best for the majority of your source content. Looking at your Bryston 10B Sub active crossover make me miss mine. It is a fine crossover. Happy listening.
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  #17  
Old 10-29-2012, 12:26 AM
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I like a man who uses an active crossover. That's the best way to integrate a sub. You picked a good one.

I almost agree with Dan regarding tweaking. You may find yourself tweaking the gain and crossover points for a few weeks before you leave the settings alone. If you get it in a few days, you'll be very lucky!

It takes a while for your ears to accommodate to the changes in your system.

Last edited by GaryProtein; 10-29-2012 at 12:33 AM.
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  #18  
Old 10-29-2012, 12:37 AM
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I guess that's why I like the Thiel SmartSubs. It's a lot easier to integrate into an existing setup.

The subs have two adjustments: distance from two nearest walls. This compensates for boundary interactions.

The S1 integrator then adjusts for the main speakers and power amp. You just dial in the specs of the speaker (sensitivity/ported/sealed/-3dB low frequency cut off) and the power amp (gain). The crossover in the main speakers are untouched and they run unadulterated. The subs just fill in what the main speakers can't reproduce.

I've moved the speakers/sub a few times and to 2 different rooms and never have to deal with the Goldilocks (too much, too little) problem everytime
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  #19  
Old 10-29-2012, 11:02 AM
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Quote:
Originally Posted by doggiehowser
I guess that's why I like the Thiel SmartSubs. It's a lot easier to integrate into an existing setup.

The subs have two adjustments: distance from two nearest walls. This compensates for boundary interactions.

The S1 integrator then adjusts for the main speakers and power amp. You just dial in the specs of the speaker (sensitivity/ported/sealed/-3dB low frequency cut off) and the power amp (gain). The crossover in the main speakers are untouched and they run unadulterated. The subs just fill in what the main speakers can't reproduce.

I've moved the speakers/sub a few times and to 2 different rooms and never have to deal with the Goldilocks (too much, too little) problem everytime
Just to be clear, the Bryston 10B-SUB does nothing to adulterate the crossover in the main speakers. It splits the signal (no digitizing) before it gets to the mains. Consequently the mains are not straining to produce a signal that is beyond their design.
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  #20  
Old 10-29-2012, 11:46 AM
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Quote:
Originally Posted by chessman View Post
Just to be clear, the Bryston 10B-SUB does nothing to adulterate the crossover in the main speakers. It splits the signal (no digitizing) before it gets to the mains. Consequently the mains are not straining to produce a signal that is beyond their design.
Splitting the signals is adding a crossover in front of the one inside. That changes the phase etc of the original signal.

But I understand the Velodyne SMS can work in augment mode (in parallel and just filling in the blanks so to speak)
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