Sign in   |  Join   |  Help

Which (trigger) cables do I need to make this 5.1 setup?

rated by 0 users
Answered (Not Verified) This post has 0 verified answers | 24 Replies | 3 Followers

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member
tuttivini posted on Sun, Nov 27 2016 4:05 PM

Hi Beoworlders,

My dad recently boughty a Beolab 7.2, to add to his Beolab 3's.
What a sound!!! Dialogs (voices) are soooo crisp. Deep bass, strong mids, clear highs, excellent overall sound. (My dad had some trouble with the stereo sound, coming from the Beolab 3's while watching movies/listening to voices). 

At this point, he wants to buy a new TV (can't wait untill B&O is going the LG (oled) route), so looking for a new LG Oled or Samsung Quantum 65" screen.

He wants 5.0/5.1 surround in the tv-room, and because the TV will be a non-b&o model, we are looking for a decent AV-Receiver to do the job.

He want his Beolab 3's a front left and right channel, the Beolab 7.2 as center channel and two Beovox C75's as surrounds/rears.

Yes, C75's!!! He bought them second hand in mint condition last month and made two selfmade/designed floor stands for them.
The black 'base' is in the same design/dimensions as his beolab 8000's (in another part of the room).
They look sóóó good with these floorstands:

I've looked at several av-receivers and found the Marantz SR5010 suitable (very good price at the moment and does everything he wants).

We need to connect the Beolab 3's, the Beolab 7.2 and the Beovox C75's to this receiver and this is where I need your help:

The SR5010 has a 12v trigger output, which I want to use to trigger the Beolab's on/off.
I don't want to use a 220v triggering kit, like Steve from Soundsheavenly sells (I have this triggering kit lying around, but don't want to use it, because I want all Beolab's go on when I switch on the receiver automatically.

(@Steve from Soundsheavenly: Do u also sell rca to powerlink cables with the 12v trigger jackphone connectors?)

Which adapter cables should I buy? What options do I have? Only 'Powmasscables'?
(We live in The Netherlands)

And how can I connect the Beolab 7.2? Because this is 'stereo-speaker' (has build in left and right channel amps). Can I use a simple 1xmale rca to 2xfemale rca splitter cable, together with a triggering cable to make this a dedicated center speaker, with these wiring:


+
?

 

Thanks,

 

Tim

All Replies

Playlink
Not Ranked
12 Posts
OFFLINE
Bronze Member

Maybe this solutions will bring some anwers: http://www.beomac.com/toepassing/ander-merk-tv-aansluiten-en-geluid-via-b-o-speaker/

kallasr
Top 50 Contributor
Germany
2,520 Posts
OFFLINE
Founder
Did you find this thread:

http://forum.beoworld.org/forums/t/2420.aspx

I was using a similar setup some time ago.

Best regards

Ralf

Living Room: Beosystem 4, Beolab 7-2 (Center), Beolab 9 (Fronts), Beolab 8000 (Rears), no Subwoofer. Screen: Sony KD-85XH9096
Home Cinema: Beosystem 4, Beolab 7-4 (Center), Beolab Penta 2 (Fronts), Beolab 4000 (Rears) and Beolab 2. Projector: Sony VPL-HW55
Home Office: Beovision 10-40 on STB Bracket wall mount. Beosound 9000 MK3 on horizontal wall bracket driving Beolab 5000 Speakers
Bedroom: Loewe TV with Beolab 6002 and Beolab 11 (all white, wall-mounted)
In storage: Beolab 5000/Beomaster 5000 (1960s). 

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

@Playlink: Your link brings me to some Almando products. This isn't what I need. My dad bought a Marantz SR5010 receiver and we wan't to connect the described beolab speakers to it, using the correct converter-cables.

@kallasr: Yes! I found your thread yesterday and showed it to my dad. Your setup is almost the same as what I want for my dad.
The only difference is the way you connect your center speaker:

You connected two Beolab 4000's and I guess you looped the second 4000 with a powerlink cable to the first 4000, so they work as 'one' center speaker.

My main question is about how I should connect the Beolab 7.2 so it uses both internal amps to play the same center channel.

Will my described solution work (with the 1xmale rca to 2xfemale rca splitter cable, together with a triggering cable, showed in my pictures)?

And what about the Beolab 3's, will they be 'humm-free' if I use the audio+trigger cables from http://www.powmascables.com/contents/en-us/d56_Kabels-voor-aansluiting-aan-receiver.html
  ?

@Steve (from Soundsheavenly): If you read this, do you also have sell the correct cables for my described setup / do you have any advise? 

Steve at Sounds Heavenly
Top 50 Contributor
The cable workshop, Leics, UK
2,033 Posts
OFFLINE
Gold Member

Hi Tim,

Thanks for your enquiry.  I do sometimes get asked about whether Beolab 7 and Beolab 2 speakers can be triggered from the 12v output of non-B&O receivers and I did look into this in some detail recently.  The first thing I did was to speak to the Technical Support departments at a number of the receiver manufacturers (including Yamaha, Onkyo and Denon) to determine the specifications for the 12v outputs on their receivers.

One thing that quickly became clear was that none of the companies I spoke to provided a trigger output that was suitable for use directly triggering Beolab speakers in this manner.  This is because trigger cables of the type in your photos will short circuit the negative leg of the receiver trigger output to audio ground when the speaker is connected.  Each receiver manufacturer told me that connecting their receiver in this way would void their warranty and could potentially cause equipment damage.

Hence, I only provide trigger cables with a separate supply for the trigger voltage at the moment.  I am looking into producing a fully isolated trigger adapter that will safely convert the receiver trigger for use with Beolab speakers, but this is a few months away from production.

I would advise caution if you are looking to trigger your speakers directly from a non-B&O receiver output.  Please ensure that you check with the receiver manufacturer before going ahead.  If someone else tells you that this is "safe", please remember that each receiver model behaves differently, so your receiver may not be wired in the same way as theirs.  Just because they haven't had a problem doesn't mean that you won't.  If you purchase a product that claims to safely trigger your speakers from a receiver, please ensure that the seller has tested your receiver and that they will fully insure you against any problems.

The completely safe option is to trigger the speakers separately from an independent voltage source - you lose the automatic control of the speakers from the receiver, but you can sleep soundly knowing that there won't be an expensive fault on your receiver caused by untested wiring.......

Sorry to be the bearer of bad news, but I want to ensure that the cables and advice that I offer don't result in expensive damage to anyone's equipment!

Kind regards, Steve.

Steve.

www.soundsheavenly.com

Founder of Sounds Heavenly Cables and Brand Ambassador for Bang & Olufsen

Sounds Heavenly are proud to sponsor BeoWorld!

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

@Steve:

Thank you for you detailed answer.
I know that powmasscables is one of your 'competitors' and I understand that you can't judge their cables/designs, but the only real difference is that they use a 12v (with internal stepdown to 5v) triggering on pin 4 and u use a 220v to 5vdc adapter to pin4.
Theoretical: If I would cut the 220v adapter on your triggering-kit (I have one, because I used it in a former setup in my own house), and solder a 3.5mm jackphone with a 12v>5v stepdown to it, your cable will be the 'same' as the powmasscables/av-connection designed cables. Am I correct?

What would be the downside? Triggering is triggering... Original B&O equipment also sends 5v to pin 4 to turn beolab speakers on, nothing fancy....? 

Any forummembers who use the powmasscable design triggering cables? Do they 100% work? No humm, etc.?

And Steve, 'if' I decide to buy you triggering kit (I have one, and need at leas one extra, so I can connect both beolab 3's and the beolab 7.2), instead of the 12v kits from your competitors (because you are telling me that this is the more 'safe' route), would a MASTER/SLAVE-socket be a solution to trigger your 220v to 5v adapters automatically when I switch on the AV-receiver?
So something like this:

And apart from the 220v vs 12v triggering cables, what do u suggest to make the beolab 7.2 a dedicated center speaker? How to connect it to a rca pre-out (on a av-receiver), so both internal amps (left and right channel) in the beolab 7.2 are used for the same mono center channel? Should I use a simple 1xmale rca to 2xfemale rca splitter cable for this? 

 

Steve at Sounds Heavenly
Top 50 Contributor
The cable workshop, Leics, UK
2,033 Posts
OFFLINE
Gold Member

Hi Tim,

I think in this case, the safe option is to use the "Master/Slave" remote control mains power sockets that you suggested.

I apologise if my first post was a bit long-winded.  To summarise this:-

1) Triggering Beolab speakers directly from a receiver may damage the receiver

2) Each receiver model is different, so even if this works with one receiver, it may not be safe with your receiver.

3) Using a separate mains supply to trigger the speakers avoids the risk of receiver problems.

Hope this helps.

Kind regards, Steve.

Steve.

www.soundsheavenly.com

Founder of Sounds Heavenly Cables and Brand Ambassador for Bang & Olufsen

Sounds Heavenly are proud to sponsor BeoWorld!

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

Thanks Steve.
I will test the new ordered Marantz SR5010 receiver with the triggering kit I already have (from soundsheavenly), together with a master/slave-socket.
If it works, I will order a second triggering kit from you, so I can connect both the BL3's and the BL7.2

On the other hand, Why does your 'competitor' sell dozens of 12v triggering cables if it 'could'  damage the receiver...
Are there any forummembers who use the mentioned cables and can give their opinion? 

Can you also answer my other asked question? ->

And apart from the 220v vs 12v triggering cables, what do u suggest to make the beolab 7.2 a dedicated center speaker? How to connect it to a rca pre-out (on a av-receiver), so both internal amps (left and right channel) in the beolab 7.2 are used for the same mono center channel? Should I use a simple 1xmale rca to 2xfemale rca splitter cable for this?  

Steve at Sounds Heavenly
Top 50 Contributor
The cable workshop, Leics, UK
2,033 Posts
OFFLINE
Gold Member

Hi Tim,

Sorry I missed your other question Whistle

You can either use the Beolab 7-2 as a mono speaker in the receiver centre channel output (via the RCA splitter to feed mono sound to both channels), or you can connect this to the Front Left/Front Right channels of the receiver instead to play in stereo.  In this case, please set "Center = Off" in the receiver menu and move your mains stereo speakers from the Front Left/Front Right channels to the Surround Left/Surround Right channels instead.

Kind regards, Steve.

Steve.

www.soundsheavenly.com

Founder of Sounds Heavenly Cables and Brand Ambassador for Bang & Olufsen

Sounds Heavenly are proud to sponsor BeoWorld!

davidr
Top 500 Contributor
Montréal
172 Posts
OFFLINE
Bronze Member

Hi,

In regards to triggering I use one of Powmas trigger RCA to PL on my set up which works fantastic, flick on system all speakers trigger on and stay on. Once down hit standby and immediately the speakers go to standby. I too also considered that Almando box as well but since I have a tigger socket, it's not required in my case.

At least with my set up I have zero issues like grounding noise or cross talk and yes I have a non b&o TV (LG oled) and pre amp / DAC (Rotel).

For me everything I use is via an apple TV so chain is follows:

Apple TV toslink > Rotel tosink in > Rotel pre out RCA + 12v trigger > Powmas RCA to PL > Beolab 2 PL, Beolab 2 PL x2 > Beolab 8000 PL.

As an added bonus I can Airplay lossless or mp3 audio from my iMac or phone to the apple tv without even having to switch on the tele.

Your Marantz appears to have a 12v trigger so I'm pretty sure that Powmas trigger cable will work. Ask Mr. Ligthart from them to be sure.

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

@davidr: thanks for your reaction.

Good to hear the powmass cables work 100% on your setup. I will let my dad decide which cables he wants to buy. I prefer the powmass cables, because of the auto triggering, but the soundsheavenly cables could also work when I add the described master-slave socket to do the 220v triggering...

I will let you know which triggering cables we are going to order next week and how they will sound and work in combination with the Marantz sr5010 receiver. First we are going to install his new delivered 65ks8000 quantum dot screen. What a beauty!!!

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

@Steve (soundsheavenly):

I tried your triggering kit today, but when I connected the 220v adapter to them mains, the Beolabs immediately made a loud humming noise.
I tried the triggering kit on the beolab 7.2 and on the beolab 3's. But the loud hum is hearable on both...

This is not good...
I looked at the way you soldered the + and - wires from the 220v to 5v adapter on the REAN plug.
It looks like the + wire is connected to pin 1 and pin 4 and the - wire to pin 2 and pin 7.
(I have taken photo's, if you are interested)

HOW IS THIS POSSIBLE? Is this correct?

Ps: The humm is always there, doens't matter if I connect a source to the rca's or not.

Steve at Sounds Heavenly
Top 50 Contributor
The cable workshop, Leics, UK
2,033 Posts
OFFLINE
Gold Member

Hi Tim,

Sorry to hear that you are having problems, the wiring should all be correct (wiring the extra pins allow the trigger to also work with Beolink Passive and MCL2P, as well as directly with Beolab speakers).  Pins 1 and 4 should be linked, plus pins 2 and 7.  I tested your trigger kit myself before shipping, so I know that it was working correctly.

I will email you shortly to help with your setup so that we can find out exactly what the issue is.

Kind regards, Steve.

Steve.

www.soundsheavenly.com

Founder of Sounds Heavenly Cables and Brand Ambassador for Bang & Olufsen

Sounds Heavenly are proud to sponsor BeoWorld!

tuttivini
Top 500 Contributor
181 Posts
OFFLINE
Bronze Member

Hi Steve,

Thanks for your very fast answer.
I can't understand why I hear the loud hum! It is also there if I connect your 220v to 5v adapter DIRECTLY into a beolab (so the REAN powerlink plug directly into a Beolab), the Beolab switches on and starts to hummmmmmm...
(tested this on a beolab 8000, because this speaker had the easiest acces)

Steve at Sounds Heavenly
Top 50 Contributor
The cable workshop, Leics, UK
2,033 Posts
OFFLINE
Gold Member

Hi Tim,

Thanks for your reply, I'm sorry to hear that you are having problems.  I have sent you an email today with some ideas that should help to resolve the issue.

When you connect the power supply directly to the Beolab 8000, please can you check that the speaker was set to "Left" or "Right", not to "Line"?  Giving the speaker a trigger signal when it is set to Line mode can make the speaker hum.

Are you able to try the three parts of the trigger kit (power supply, splitter and audio cable) together with one of your speakers please, with the music source connected before you power on the speaker?  Again, please set the speaker to either "L" or "R", not to "Line".  Please let me know how you get on and I will be pleased to assist further.

Each trigger cable is tested individually before shipping, so problems are very rare.  There are many different things that can cause unexpected noises in speakers, but I will ensure that you get all the help you need to find the cause of this noise and resolve it.  Thanks for your patience.

Kind regards,

Steve. 

Steve.

www.soundsheavenly.com

Founder of Sounds Heavenly Cables and Brand Ambassador for Bang & Olufsen

Sounds Heavenly are proud to sponsor BeoWorld!

Page 1 of 2 (25 items) 1 2 Next > | RSS
Beoworld Security Certificate

SSL