AV Amp Speaker Set Up - Please help

Snikoes

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I have just run a 'Full Auto MCACC' on my Pioneer SC-LX87 and the speaker settings look odd.

The amp is showing all my speakers as 'Large' with a X.Over of 80Hz. What does this mean? If the crossover is at 80Hz, surely all the frequencies below this will go to the sub effectively making all the speakers 'small'?

Is this an setting odd or am I misundersanding it? Also, if the speakers are running as 'large', should I change all the speakers to 'small' to protect them against very loud action movies?

Speakers are B&W: 685 (mains), HTM62 (centre), DS3 (rears) and BK Monolith sub. (All B&W speakers are the series 1 version)

Thanks for any advice anyone can offer.
 

Q5

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Snikoes said:
I have just run a 'Full Auto MCACC' on my Pioneer SC-LX87 and the speaker settings look odd.

The amp is showing all my speakers as 'Large' with a X.Over of 80Hz. What does this mean? If the crossover is at 80Hz, surely all the frequencies below this will go to the sub effectively making all the speakers 'small'?

Is this an setting odd or am I misundersanding it? Also, if the speakers are running as 'large', should I change all the speakers to 'small' to protect them against very loud action movies?

Speakers are B&W: 685 (mains), HTM62 (centre), DS3 (rears) and BK Monolith sub. (All B&W speakers are the series 1 version)

Thanks for any advice anyone can offer.

Hi,

MCACC does this, set all the speakers to small and re run MCACC.

Select custom and keep settings
 

Leeps

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I think the reason why it does this is because if it detects that your speakers are full range & not small satellite speakers, it assumes the 'large' setting and yes, it will send the full frequency range to your speakers & the low frequencies as well to your sub.

But in practice this results in a slow bloated languid sound; far better to change the speakers back to small again after the MCACC, then as you intended, only frequencies above the selected crossover will be sent to the main speakers.

Once you've changed back to 'small' it should sound much faster, more punchy & lively.
 

Snikoes

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Q5 said:
Snikoes said:
I have just run a 'Full Auto MCACC' on my Pioneer SC-LX87 and the speaker settings look odd.

The amp is showing all my speakers as 'Large' with a X.Over of 80Hz. What does this mean? If the crossover is at 80Hz, surely all the frequencies below this will go to the sub effectively making all the speakers 'small'?

Is this an setting odd or am I misundersanding it? Also, if the speakers are running as 'large', should I change all the speakers to 'small' to protect them against very loud action movies?

Speakers are B&W: 685 (mains), HTM62 (centre), DS3 (rears) and BK Monolith sub. (All B&W speakers are the series 1 version)

Thanks for any advice anyone can offer.

Hi,

MCACC does this, set all the speakers to small and re run MCACC.

Select custom and keep settings

Hi Q5,

Thanks for your input.

Why do you suggest I re-run and keep settings rather than just changing the existing calibration to small?
 

Snikoes

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Leeps said:
I think the reason why it does this is because if it detects that your speakers are full range & not small satellite speakers, it assumes the 'large' setting and yes, it will send the full frequency range to your speakers & the low frequencies as well to your sub.

But in practice this results in a slow bloated languid sound; far better to change the speakers back to small again after the MCACC, then as you intended, only frequencies above the selected crossover will be sent to the main speakers.

Once you've changed back to 'small' it should sound much faster, more punchy & lively.

Thanks. I made the change you suggested after making the post. I have found the changes in sound to be exactly as you describe.

Im curious to know why Q5 is suggesting rerunning MCCAC as I would have thought it would get me to the same place?
 

Leeps

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Snikoes said:
Leeps said:
I think the reason why it does this is because if it detects that your speakers are full range & not small satellite speakers, it assumes the 'large' setting and yes, it will send the full frequency range to your speakers & the low frequencies as well to your sub.

But in practice this results in a slow bloated languid sound; far better to change the speakers back to small again after the MCACC, then as you intended, only frequencies above the selected crossover will be sent to the main speakers.

Once you've changed back to 'small' it should sound much faster, more punchy & lively.

Thanks. I made the change you suggested after making the post. I have found the changes in sound to be exactly as you describe.

Im curious to know why Q5 is suggesting rerunning MCCAC as I would have thought it would get me to the same place?

I don't know. I would think as long as you run MCACC after setting the speakers to small, that levels & bass management would be set accordingly. But from memory each time you run MCACC it tends to change the speakers back to large again anyway, hence the need to double-check this at the end.
 

Q5

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Leeps said:
Snikoes said:
Leeps said:
I think the reason why it does this is because if it detects that your speakers are full range & not small satellite speakers, it assumes the 'large' setting and yes, it will send the full frequency range to your speakers & the low frequencies as well to your sub.

But in practice this results in a slow bloated languid sound; far better to change the speakers back to small again after the MCACC, then as you intended, only frequencies above the selected crossover will be sent to the main speakers.

Once you've changed back to 'small' it should sound much faster, more punchy & lively.

Thanks. I made the change you suggested after making the post. I have found the changes in sound to be exactly as you describe.

Im curious to know why Q5 is suggesting rerunning MCCAC as I would have thought it would get me to the same place?

I don't know. I would think as long as you run MCACC after setting the speakers to small, that levels & bass management would be set accordingly. But from memory each time you run MCACC it tends to change the speakers back to large again anyway, hence the need to double-check this at the end.

By selecting Auto MCACC - custom - keep settings, it will not change the speakers to large. By setting the speakers to small instead of large the speaker levels etc will be different, that is why you need to re run MCACC.

There is a lot more to setting up a Pioneer amp than just running the auto set up and I would recommend looking into it further.

The difference in a well setup Pioneer is well worth the time. Also if you have a SPL meter set this up and adjust the speaker levels for each speaker manually.

I found this quite useful when i first started and have made my own tweaks since, a friend of mine also tried this and liked the difference. My amp is a LX85 so apologies if the LX87 menus are different.

MCACC Advanced Setup
[*]Set Receiver to MCACC pre-set 1 (M1). Now Run Auto MCACC in your listening position so the mic is where your ears are during listening.

2) Go into Manual SP Setup and change the SP settings if necessary (crossover to 80hz for me and speakers to small)

3) Now re-run Auto MCACC but select custom, and then select Keep SP settings.

4) Now you have an Auto MCACC calibration saved to M1 (....note: you
must select which pre-set you want Auto MCACC to save calibration data to
before you enter the audio setup menu.) Now go into Data Management--------> Data Copy and copy M1's data to M2 and also to M3. Now you have carbon copies of this calibration in M1-M3.

5) Now go into Manual MCACC--->EQ Professional------>Reverb Measurement and get a reading on the frequency response characteristics of your room. Be sure to select EQ OFF (standing waves not controlled for via MCACC filters) in the Reverb Measurement menu because
you don't want the standing wave adjustments (EQ on) to be factored in
to the room reverb measurements. Also make sure you haven't moved the mic.

6) After test tones are done, go into Manual MCACC--->EQ Professional------>Reverb View,
and you can analyse the frequency response of individual channels at
various frequencies. Based upon that data, you would select the
appropriate capture delay time for MCACC to capture data during for the
upcoming EQ calibration.

Change that time frame under Manual MCACC--->EQ Professional------>Advanced EQ Setup to whatever you decide is the appropriate capture delay time ....(Pioneer recommends 30-50 ms,
but they encourage you to analyse the data under reverb view first and
refer to the advanced MCACC software manual for analysis purposes).
Note: the default capture delay time is than 80-160 ms.

7) Change to MCACC pre-set 2 (M2) before you run the new advanced EQ calibration with the new capture time. Go under Manual MCACC--->EQ Professional------>Advanced EQ Setup to
start the advanced EQ calibration, and MCACC should make a more
accurate calibration since it will now capture sonic information sooner
after the speakers output sound, and get a read on what the frequency
response is of the speakers themselves, and not the speakers and all the
reverb which accumulates as time passes. (Default capture time is
80-160 ms and thus collects more reverb and less true speaker reading)

Now you should have an accurate calibration. Also, now you can easily
compare the Auto MCACC EQ effects that are stored in M1 with the
advanced EQ effects in M2 while listening to content with a simple
button press on the remote. You could also juice the base a few dB in
M3, and also compare running the base a bit hot to a flat calibration
that you have in M1 and M2.
 

Snikoes

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Q5,

Thanks for your effort, it is appreciated - although I'm disappointed it's not set up and I have to delve deeper!

It's all clear but for the need to analyse the timing and understand the results. I need to look into this to make sure I make the right choice.
 

Q5

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Snikoes said:
Q5,

Thanks for your effort, it is appreciated - although I'm disappointed it's not set up and I have to delve deeper!

It's all clear but for the need to analyse the timing and understand the results. I need to look into this to make sure I make the right choice.

Don't be upset, the auto set up is not bad, but it can be made better.

If you save your settings to one of the memory slots, you can flick through them while you are listening to something and compare the settings.

It is not just the Pioneer that needs tweaking after running auto set up.
 

Frank Harvey

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Like any auto set/EQ system, it can only work on what the microphone picks up. It can't block out the room effects, and it doesn't know what your speakers are or what they sound like. What it picks up isn't just what comes from the speaker, but what the room has done to it after the sound has left the speaker. It is quite easy to fool a microphone into thinking that a small speaker is larger than it actually is, which is why you will usually get incorrect crossover settings on most systems. This should always be set afterwards based on the capabilities of the speakers and the sub.
 

Snikoes

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Q5, thanks for the instructions you sent and for encouraging me to delve deeper into MCACC.

I have followed the instructions and have had great results. It sounds so much more detailed and balanced.

I've owned the amp for quite a while and have recalibrated it over the last few days due to changing furniture in the room. Since getting a new suite, the sub has sounded quite boomy.

When I originally calibrated the amp when it was new, I ran a full auto calibration, changed the speaker sizes and then a second calibration (as per the first few steps of your instrcutions). This time, I have gone further and changed the timing to 30-50ms as per your full instructions. It's now sounding better than ever!

Thanks very much.
 

Q5

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Snikoes said:
Q5, thanks for the instructions you sent and for encouraging me to delve deeper into MCACC.

I have followed the instructions and have had great results. It sounds so much more detailed and balanced.

I've owned the amp for quite a while and have recalibrated it over the last few days due to changing furniture in the room. Since getting a new suite, the sub has sounded quite boomy.

When I originally calibrated the amp when it was new, I ran a full auto calibration, changed the speaker sizes and then a second calibration (as per the first few steps of your instrcutions). This time, I have gone further and changed the timing to 30-50ms as per your full instructions. It's now sounding better than ever!

Thanks very much.

Hi Snikoes,

Glad things are sounding better. Now sit back and enjoy.
 

Snikoes

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Can anyone help please?

I have calibrated my LX87 as per the thread above. It sounds great and I love the overall balance. However, I would like to reduce the level of the sub slightly but cannot find where to do it in the menus. The values seem locked? (I'd rather adjust via the amp than on the back of the sub)

I want to adjust the existing MCACC calibration. Is this possible? If so, could someone advise please?

I don't want to run new calibrations or start fresh manual calibrations.
 

macdiddy

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if you don't want to run a new calibration etc then check the settings on the back of your subwoofer or if you can move the sub further away from any walls it may be near.

Another thing to try is blocking the port.

*music2*
 

Q5

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Snikoes said:
Can anyone help please?

I have calibrated my LX87 as per the thread above. It sounds great and I love the overall balance. However, I would like to reduce the level of the sub slightly but cannot find where to do it in the menus. The values seem locked? (I'd rather adjust via the amp than on the back of the sub)

I want to adjust the existing MCACC calibration. Is this possible? If so, could someone advise please?

I don't want to run new calibrations or start fresh manual calibrations.

Off the top of my head:

Select channel level setting from the manual SP set up.

A test tone will start - select the sub and then adjust the volume output.
 

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