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Quick question: Connection and setup of Core+BL18+BL19

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Curly
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Curly posted on Sat, Nov 14 2020 11:23 PM

Hi, my friends. A quick two questions on using a Core to drive a pair of BL18 with a BL19.

1. Using Powerlink out of the Core, I would have to connect to one BL18 and then use another Cat7 cable to daisychain from first BL18 to the second BL18. THEN use another Cat7 to daisychain from the second BL18 to BL19. Correct? Since the BL19 only has a single Powerlink socket, I don't know how else to optimally make the connections (i.e., I can't connect from the Core directly to BL19 because there would be no way to loop in the BL18s).

2. Assuming my connection strategy above is correct, within the Core settings\Product Settings\Configure\Sound\Speaker Setup\Please specify the speaker type connected to enable appropriate sound processing... would I choose BL18 or BL19?

I want all the crossovers to be handled optimally so I don't know how to indicate both BL18 and BL19 are present or if only one can be chosen, which to choose.

Thanks!

 

 

Currently: BeoLab 17, BeoLab 18, BeoSound Core, BeoPlay S8 Connection Hub, Essence Remote

Previously: BeoSound 1 non-GVA

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Duels
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Duels replied on Sun, Nov 15 2020 12:09 AM
If you are using cables as opposed to WISA then you are correct to daisy chain core> BL18>BL18>BL19. But be aware that whilst you can adjust the low pass filter on the BL19 it is not possible to adjust the BL18s and they will continue to play their full frequency range (as if there was no BL19 present). This is not really how they were intended to be used.

If you use a Transmitter 1/WISA, it will automatically carry out the sound processing (applying high and low pass filters) appropriately.

You said you want the crossovers to be handled optimally. The way to do that is to use a Transmitter or a Beovision.

Having said all that, you could try the cables and see how it sounds. I personally like it but the low pass filter on the BL19 would have to be set very low to avoid muddying the bass where all speakers are playing the same frequency.

Curly
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Curly replied on Sun, Nov 15 2020 1:13 PM

Thanks very much, Duels. I’m very surprised the Core can’t figure out the crossovers as I imagine the setup I described is pretty common. That’s unfortunate. I’ll have to think about what to do. Thanks again!

Currently: BeoLab 17, BeoLab 18, BeoSound Core, BeoPlay S8 Connection Hub, Essence Remote

Previously: BeoSound 1 non-GVA

Curly
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Curly replied on Sun, Nov 15 2020 5:01 PM

Duels, I’ve read the Transmitter 1 manual and while it does indicate there is a button to switch ON if using a 2.1 stereo system, it makes no reference to telling the device precisely what speakers comprise the system, which I imagine would be necessary for the Transmitter to know so as to set the crossovers correctly (i.e., crossovers would be different with BL17+19 system versus BL18+19 system). Can you opine?

Is there logic in the device that knows what speakers are in the system when it joins them during initial setup? Where is there documentation that discusses this?

Also, happy to leave this discussion here in case it’s helpful to anyone in the future but if you’d prefer to DM me, feel free to do so.

Again, thank you!

Currently: BeoLab 17, BeoLab 18, BeoSound Core, BeoPlay S8 Connection Hub, Essence Remote

Previously: BeoSound 1 non-GVA

mbolo01
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The Transmitter 1 button is about telling the system if you use a sub or not. If you set the sub on and configure it at the right place, then the bass filtering occurs properly.

If you switch the sub button to off later on, BL18 gain in bass and BL 19 acts as a poor regular speaker, which is a good demonstration of the purpose of this setting.

BS Moment, BS Core, BG 4002, BC 4500, BS1, BL18, BL19, BL8000 + RCV1, A6, M5, M3, A1, P6 (tks Botty), H5, TR1

Curly
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Curly replied on Sun, Nov 15 2020 10:28 PM

Thank you! I understand this. My question is does the Transmitter set different crossover settings based on the particular front speaker’s characteristics? In other words, does the Transmitter automatically choose one set of crossover settings if you use BL17 up front and a different crossover setting if you use BL18? I hope that’s clearer. Thanks, all!

Currently: BeoLab 17, BeoLab 18, BeoSound Core, BeoPlay S8 Connection Hub, Essence Remote

Previously: BeoSound 1 non-GVA

mbolo01
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Curly:
Thank you! I understand this.

Sorry, I was confused by your statement "a button to switch ON if using a 2.1 stereo"

So, quoting to the Installation Guide:

"With a stereo only signal as input and a wireless subwoofer available,
set the
SUB 2.1 switch to ON. The bass management function of the BeoLab Transmitter 1 provides the subwoofer signal to a wireless subwoofer indicated as the third sound channel (PL 2 L).

The cut-off frequency for the Bass management is 120 Hz."

I deduce that there is no processing difference depending on the type of speaker used, so no automatic recognition of the speaker model nor information exchanged with the Beosystem source to identify the speakers.

 

BS Moment, BS Core, BG 4002, BC 4500, BS1, BL18, BL19, BL8000 + RCV1, A6, M5, M3, A1, P6 (tks Botty), H5, TR1

Duels
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Duels replied on Mon, Nov 16 2020 10:27 AM
mbolo01:

If you switch the sub button to off later on, BL18 gain in bass and BL 19 acts as a poor regular speaker,

When I was using this speaker combination with a transmitter, switching the 2.1 switch to “off” actually turned the BL19 off completely.
Duels
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Duels replied on Mon, Nov 16 2020 10:34 AM
Hi Curly

I’m not sure whether the crossover frequency is different for different speakers ie BL18 and BL17s. They were both developed and released at the same time with some demos showing 18s as fronts and 17s as rears/surrounds so they may well have similar properties.

But don’t forget that you can specify the speakers you are using in the core which will affect the sound processing.

My understanding is that specifying your speakers in the core setup and then switching the 2.1 switch to “on” is the correct way to set up this system.
Curly
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Curly replied on Mon, Nov 16 2020 12:49 PM

Much appreciated to you both. Thank you!

Currently: BeoLab 17, BeoLab 18, BeoSound Core, BeoPlay S8 Connection Hub, Essence Remote

Previously: BeoSound 1 non-GVA

Duels
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Duels replied on Mon, Nov 16 2020 6:46 PM
Please do let us know how you get on.

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