Official Classe SSP-800 thread. - Page 202 - AVS | Home Theater Discussions And Reviews
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post #6031 of 6037 Old 03-24-2015, 10:21 AM
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Quote:
Originally Posted by MiniBones View Post
The issue is even though I suspect I will be able to get the measurements done relatively competently I don't have the foggiest clue about what to do with Center frequency, Q, Or Gain. I don't want the threadjack but it seems SSP related...is this the right place for those future questions?
As Kal mentioned, REW can prescribe filters. But the success depends on how you configure REW after the measurements have been made. Some key steps:

Treat the subwoofer EQ process differently from the main speakers. The goal for mains is to smooth out broad EQ differences among the speakers. The goal for the sub is to kill sharp resonances, and set an overall response curve.

For the mains, measure once for each speaker. Set the REW smoothing to 1 octave. In the EQ mode of REW, tell it you have 5 bands. set the gain for the filter generator near the lower end of the response curve so that it will induce REW to use EQ peak reduction. (The SSP-800 EQ offers 20 dB of cut range but only 3 dB of boost -- as boost is almost never a good idea).

For the sub, measure several locations within a ~2' diameter. Use 1/12th octave smoothing. Average the results. Let REW prescribe filters.

Sorry, have to run, but just wanted to give a thumbnail of the process.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
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post #6032 of 6037 Old 03-24-2015, 01:14 PM
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Quote:
Originally Posted by Roger Dressler View Post
As Kal mentioned, REW can prescribe filters. But the success depends on how you configure REW after the measurements have been made. Some key steps:

Treat the subwoofer EQ process differently from the main speakers. The goal for mains is to smooth out broad EQ differences among the speakers. The goal for the sub is to kill sharp resonances, and set an overall response curve.

For the mains, measure once for each speaker. Set the REW smoothing to 1 octave. In the EQ mode of REW, tell it you have 5 bands. set the gain for the filter generator near the lower end of the response curve so that it will induce REW to use EQ peak reduction. (The SSP-800 EQ offers 20 dB of cut range but only 3 dB of boost -- as boost is almost never a good idea).

For the sub, measure several locations within a ~2' diameter. Use 1/12th octave smoothing. Average the results. Let REW prescribe filters.

Sorry, have to run, but just wanted to give a thumbnail of the process.
Roger, appreciate the time and the overview. I am still at the setting REW up stage. Downloading, Installing, Finding the right drivers, getting all the connections etc etc so I have a long way to go.

As advised I will check out Hometheatreshshack. That said, it seems there is plenty of SSP specific expertise right here so I might have to bother you guys again in the future!
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post #6033 of 6037 Old 03-24-2015, 03:01 PM
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On another note...I was reading about the Sigma-SSP and noticed it is AirPlay enabled. It looked to me if that unit was connected by Ethernet that apple AirPlay products could see it directly. Is this functionality available on the CT-SSP? I can't find it and assume not, but thought I would check here.
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post #6034 of 6037 Old 03-24-2015, 08:20 PM
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As an update on my sub issue it must have been the terminations. Everything is working correctly now. Thanks for the advice on moving the connections around it was worth a shot.

Just to confirm the manual is right for my set up the subs run from Sub Out and Aux 2.

A question on the noise sequence available under level in configurations. This pink noise cycles through the speakers in a pattern. Is there a way to advance the latter or to pause it on one speaker?
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post #6035 of 6037 Old 03-24-2015, 10:20 PM
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Quote:
Originally Posted by MiniBones View Post
On another note...I was reading about the Sigma-SSP and noticed it is AirPlay enabled. It looked to me if that unit was connected by Ethernet that apple AirPlay products could see it directly. Is this functionality available on the CT-SSP?
Noop.

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Originally Posted by MiniBones View Post
A question on the noise sequence available under level in configurations. This pink noise cycles through the speakers in a pattern. Is there a way to advance the latter or to pause it on one speaker?
Yes. From the Levels menu, click the speaker of interest. When you touch the increase/decrease controls, the noise starts. But it also changes the gain, so you may not want that to happen -- then just click the opposite button to return it to the original setting.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
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post #6036 of 6037 Unread Today, 10:39 PM
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I must be missing something. I can't get the noise just by adjusting level....I have to use noise seq...
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post #6037 of 6037 Unread Today, 11:07 PM
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Quote:
Originally Posted by MiniBones View Post
I must be missing something. I can't get the noise just by adjusting level....I have to use noise seq...
Sorry. I was not in front of it when I wrote that -- so might have stated it wrong. But perhaps once the noise sequencer is turned on, it will follow whichever channel's level controls you touch.

I happen to like using a test disc for speaker level checks. The Spears&Munsil v2 has easy access to each channel.

Deadwood Atmos theater [HTOM]
AV7702 Atmos 7.4.4, SSP-800 PLIIx 7.4
Aerial Acoustics 7B/CC3B fronts, B&W CWM8180 surrounds, Tannoy Di6 DC heights, Hsu ULS-15 subs
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