In what order should subwoofer accessories be connected?

[Boomzilla]

I'll shortly have the following to hook up:

1. Source with monophonic subwoofer output (RCA unbalanced)

2. Emotiva wireless transmitter & receiver set for subwoofers

3. Dayton Audio room equalizer / crossover for the subwoofer

4. The subwoofer itself

My question is "Should the wireless connection be upstream of the equalizer/crossover or vice versa?

It may not matter, and it that's the case, then I'll just wire them as is most convenient.

The Dayton device, by the way, includes its own signal generator, cell phone wireless connection, and internal equalization (to compensate for the non-linearities of the cell phone microphone), memory (to store corrected curves for the subwoofer), and the ability to create crossover points at any slope and frequency (within reason).

I'm assuming that the Emotive wireless devices are essentially frequency-neutral, and that the Dayton won't have to compensate for them.

Thanks - Boomzilla

[Deleted]

Apr 8, 2021 15:58:51 GMT -5 Boomzilla said:

I'll shortly have the following to hook up:

1. Source with monophonic subwoofer output (RCA unbalanced)

2. Emotiva wireless transmitter & receiver set for subwoofers

3. Dayton Audio room equalizer / crossover for the subwoofer

4. The subwoofer itself

My question is "Should the wireless connection be upstream of the equalizer/crossover or vice versa?

It may not matter, and it that's the case, then I'll just wire them as is most convenient.

The Dayton device, by the way, includes its own signal generator, cell phone wireless connection, and internal equalization (to compensate for the non-linearities of the cell phone microphone), memory (to store corrected curves for the subwoofer), and the ability to create crossover points at any slope and frequency (within reason).

I'm assuming that the Emotive wireless devices are essentially frequency-neutral, and that the Dayton won't have to compensate for them.

Thanks - Boomzilla

Isn't there a delay/latency in the wireless network to wireless devices? Seems that any DSP and I am assuming that that might be what you mean by equalizer/crossover to compensate for? 
If so I think the devices shouldn't matter upstream or downstream so long as that measurements can be taken to compensate for delay in time alignment. 

You've been busy boom?
Haven't seen ya around much lately maybe it's just me missing ya. 

Enjoy,
William

[ttocs]

Apr 8, 2021 15:58:51 GMT -5 Boomzilla said:

I'll shortly have the following to hook up:

1. Source with monophonic subwoofer output (RCA unbalanced)

2. Emotiva wireless transmitter & receiver set for subwoofers

3. Dayton Audio room equalizer / crossover for the subwoofer

4. The subwoofer itself

My question is "Should the wireless connection be upstream of the equalizer/crossover or vice versa?

It may not matter, and it that's the case, then I'll just wire them as is most convenient.

The Dayton device, by the way, includes its own signal generator, cell phone wireless connection, and internal equalization (to compensate for the non-linearities of the cell phone microphone), memory (to store corrected curves for the subwoofer), and the ability to create crossover points at any slope and frequency (within reason).

I'm assuming that the Emotive wireless devices are essentially frequency-neutral, and that the Dayton won't have to compensate for them.

Thanks - Boomzilla

I've got three VSUB pairs, and the transmitters are all last in line after the miniDSP's. This allows for having the transmitters with the equipment - processor, miniDSP's, and power, - so each sub location just needs power for the sub and receiver. 

I don't see why it would be any better or worse to have the Dayton device with the subwoofer, so I'd choose whichever is more convenient for power and cabling.

The latency isn't much of an issue with the wireless. As far as I could determine, the latency is about 1ms.

[Boomzilla]

Thanks, gents - what I needed to know!

[Deleted]

Apr 8, 2021 16:20:36 GMT -5 ttocs said:

Apr 8, 2021 15:58:51 GMT -5 Boomzilla said:

I'll shortly have the following to hook up:

1. Source with monophonic subwoofer output (RCA unbalanced)

2. Emotiva wireless transmitter & receiver set for subwoofers

3. Dayton Audio room equalizer / crossover for the subwoofer

4. The subwoofer itself

My question is "Should the wireless connection be upstream of the equalizer/crossover or vice versa?

It may not matter, and it that's the case, then I'll just wire them as is most convenient.

The Dayton device, by the way, includes its own signal generator, cell phone wireless connection, and internal equalization (to compensate for the non-linearities of the cell phone microphone), memory (to store corrected curves for the subwoofer), and the ability to create crossover points at any slope and frequency (within reason).

I'm assuming that the Emotive wireless devices are essentially frequency-neutral, and that the Dayton won't have to compensate for them.

Thanks - Boomzilla

I've got three VSUB pairs, and the transmitters are all last in line after the miniDSP's. This allows for having the transmitters with the equipment - processor, miniDSP's, and power, - so each sub location just needs power for the sub and receiver. 

I don't see why it would be any better or worse to have the Dayton device with the subwoofer, so I'd choose whichever is more convenient for power and cabling.

The latency isn't much of an issue with the wireless. As far as I could determine, the latency is about 1ms.

1ms equals 1.1 feet. 
And that's the not latency of the device itself as opposed to network. 
For example, the Minidsp DDRC 88A has a latency of 19.24 ms internally and that's not wireless..... equaling roughly 21 feet in distance. 
I figure as long as the entire system is measured as a whole then there shouldn't be an issue. 
Depending on where the signal generator is tapped into the system.... for example, if the minidsp sits downstream of the preamp and then the preamp isn't taken into consideration by plugging into the minidsp. But if the signal generator is made by rew into the preamp then everything downstream should be taken into account. 

[Boomzilla]

Isn't that want the subwoofer's own phase switch/dial is made for?

[Deleted]

Apr 9, 2021 12:44:27 GMT -5 Boomzilla said:

Isn't that want the subwoofer's own phase switch/dial is made for?

Sure, if you're using your own ears and don't have a DSP/EQ/Xover. 
Just pointing out that devices have internal latency and wireless have additional network latency. 
As long as the entire system is measured by either your ears or devices and corrected I'm sure you'll squeeze the best fidelity out of the system. 
Please correct me if wrong!

[Boomzilla]

You're not wrong. The "latency" can be calculated or measured. But the "phase" dial on the sub can be used to ensure that a pulse response from the speakers happens at exactly the same time as the pulse response from the sub. But in addition to the "electronic delay" introduced by component latency, there's also the physical latency of having the speakers and sub(s) at different distances from the listening position. One of the nice things about room correction systems is that they automatically compensate for both the electronic and physical latencies so that a coherent waveform reaches the listening (microphone) position.