Sub out from Ultra or my amp?

[motleypixel]

I'm pretty sure if I don't use the Ultra's sub out to my active sub, then any and all main speaker to sub calibration/EQ from the Ultra goes out the door if I elect to use my amp's sub out, correct?

Thank you.

 

[Wiimer]

I'm pretty sure if I don't use the Ultra's sub out to my active sub, then any and all main speaker to sub calibration/EQ from the Ultra goes out the door if I elect to use my amp's sub out, correct?

Thank you.

I don't think so. The Ultra's EQ can correction for the full range. In this case, the EQ is also applied to the sub connected to the amp.

 

[motleypixel]

I don't think so. The Ultra's EQ can correction for the full range. In this case, the EQ is also applied to the sub connected to the amp.

So which is best practice here? Also, leads me to another thought, running two active subs via LFE one from the Ultra and one from my amp?

Thank you.

 

[Wiimer]

So which is best practice here?

I don't know, but I would use the WiiM sub out. In this case, the delay between the sub and main speakers can be correction.

Also, if your amp does not have a high-pass filter for the main speakers, the main speakers will output in full range.(When connecting a sub to an Amp.)

However, if you use the Ultra's sub out, be aware that you cannot adjust the volume of the sub with the amp's volume knob.

Also, leads me to another thought, running two active subs via LFE one from the Ultra and one from my amp?

It is better to use a '1 RCA to 2 RCA cable' and connect the two subs to the Ultra (or amp) sub out. I do so.

 

[Krabin]

I'm pretty sure if I don't use the Ultra's sub out to my active sub, then any and all main speaker to sub calibration/EQ from the Ultra goes out the door if I elect to use my amp's sub out, correct?

Thank you.

The room correction just listens to whatever speakers you're using, and the eq applies to all the outputs, so it doesn't matter how you have stuff connected for room correction. However, the Ultra has bass management, allowing you set set a crossover for your sub, speakers, or both, and it's a really good crossover at 24dB per octave. You can also do time alignment. Why would you want to use your amp's sub output, like does it have any features? Whichever device you connect the sub to should be the device that controls the volume. If using two subs, you simply get an RCA splitter from one source to both.

 

[motleypixel]

The room correction just listens to whatever speakers you're using, and the eq applies to all the outputs, so it doesn't matter how you have stuff connected for room correction. However, the Ultra has bass management, allowing you set set a crossover for your sub, speakers, or both, and it's a really good crossover at 24dB per octave. You can also do time alignment. Why would you want to use your amp's sub output, like does it have any features? Whichever device you connect the sub to should be the device that controls the volume. If using two subs, you simply get an RCA splitter from one source to both.

Copy, this was my understanding too, I would forgo all the Ultra's bass management. Just making sure. No real plan on doing the two sub thing, but good to know.

Thank you.

 

[harkpabst]

So which is best practice here? Also, leads me to another thought, running two active subs via LFE one from the Ultra and one from my amp?

No way. Rule number one: You must use the volume control of the device the sub is connected to.

 

[Wiimer]

Whichever device you connect the sub to should be the device that controls the volume.

No way. Rule number one: You must use the volume control of the device the sub is connected to.

I don't think so.
Am I wrong something?

If a sub is connected to the amp, the upstream Ultra should be able to control the volume of both the main speakers and the sub all together.

Otherwise, the WiiM can't be used connect to the AVR input.

 

[motleypixel]

I don't think so.
Am I wrong something?

If a sub is connected to the amp, the upstream Ultra should be able to control the volume of both the main speakers and the sub all together.

Otherwise, the WiiM can't be used connect to the AVR input.

I "think" if the downstream amp (connected by line out RCA from the Ultra) has volume control and you use the LFE out of the amp then the amp's volume will control the sub volume or at min severely interfere with the Ultra's ability to control it?

Thank you.

 

[Krabin]

I don't think so.
Am I wrong something?

If a sub is connected to the amp, the upstream Ultra should be able to control the volume of both the main speakers and the sub all together.

Otherwise, the WiiM can't be used connect to the AVR input.

Oh yeah, you're right. I didn't think about that case. If sub is connected to amp, both can control volume.

 

[Wiimer]

I "think" if the downstream amp (connected by line out RCA from the Ultra) has volume control and you use the LFE out of the amp then the amp's volume will control the sub volume or at min severely interfere with the Ultra's ability to control it?

Thank you.

I used to connect a WiiM pro to an AVR Optical-in with a sub and control the volume with the Pro. Never had a problem. I don't think the problem will occur unless the Ultra sub-out setting is switched on.

 

[motleypixel]

I used to connect a WiiM pro to an AVR Optical-in with a sub and control the volume with the Pro. Never had a problem. I don't think the problem will occur unless the Ultra sub-out setting is switched on.

Well this goes back to "best practice" I want to take full advantage of the Ultra's bass/sub management. So me thinks Ultra>LFE out>LFE in on my active sub is best?

Thank you,
Roy

 

[Mr Ee]

Am I wrong something?

Oh yeah, you're right. I didn't think about that case. If sub is connected to amp, both can control volume.

@harkpabst's comment is still true if you leave the amp (which has the sub connected) at a fixed volume and use the ultra as the volume control - you are still, sort of, in a roundabout way, using the amp's volume so the mains and sub will be aligned.

 

[Wiimer]

Well this goes back to "best practice" I want to take full advantage of the Ultra's bass/sub management. So me thinks Ultra>LFE out>LFE in on my active sub is best?

Thank you,
Roy

Yes, this is basically true. But if, e.g., your amp is a DIRAC-compatible AVR, the story could be different.

 

[Wiimer]

@harkpabst's comment is still true if you leave the amp (which has the sub connected) at a fixed volume and use the ultra as the volume control - you are still, sort of, in a roundabout way, using the amp's volume so the mains and sub will be aligned.

You are right, but I feel that comment Include that 'It is not possible to control the volume on a device to which the sub is not connected'. (This is just my impression.)