ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi everyone,
I've just finished bringing the Technical Sound Guides for Beolab 50 & 90 up to date.
They're now available at
https://bang-olufsen.zendesk.com/hc/en-us/articles/360041571412-Beolab-90
https://bang-olufsen.zendesk.com/hc/en-us/articles/360042003591-Beolab-50
Cheers-geoff
BV Harmony 65 / Eclipse 55 / BL 50 / 19 / 18 / BS 2 all brass
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V1 / BL 3 / BS Essence MKII / Beoplay A3 all white
BS Moment / BS 3000 / BS 3200 / BL 400 all silver
Headphones / bluetooth speakers / BLC NL-ML / BLGateway
I know…B&O virus has grown on me !
Hi Geoff,
In the sound guide for Beolab 50 I think there is some technical spec for Beolab 90 instead of Beolab 50:
10.2.3 DigitalSignalProcessorModel AnalogDevicesADSP-21489 Number 2 InstructionRate 400MHz Samplingrate 192kHz(fixed) Notes 32-bitfloatingpoint
Here it should be ONE Digital signal processor for Beolab 50.
10.2.4 DigitaltoAnalogueConvertersNotethatthesespecificationsincludetheanaloguestagesthatfollowtheDACoutputs. Model TexasInstruments/Burr-BrownPCM1798 AudioChannels 18 Samplingrate 192kHz(fixed) Wordlength 24bits FrequencyResponse 0Hzto40kHz(+0dB,-1dB) FrequencyRange 0Hzto75kHz(+0dB,-3dB) THD+N 0.004%(997Hz,-1dBFS,22Hz–20kHz) DynamicRange 122dB(A)(997Hz,-60dBFS,20Hz–20kHz,AES17) ChannelSeparation 110dB(20Hz–20kHz,AES17) LevelLinearity ±1dB(at-120dBFS)
For Beolab 50 it is not 18 audiochannels, it should be 7 instead.
Im I right?
Best RegardsMartin Ström
NEW! Beovision Eclipse 65 2nd generation (G1) with floorstand (from STB Brackets), Beolab 50 front, Beolab 3 rear, 2 x Beoplay A6 linkrooms, 2xBeoremote one BT, Beosound 9000 Mark III (sw 3.4), Beosound 5 (for DLNA only), Philips Hue (all lights in the home), Oppo UDP-203, Apple TV 4K (2021 model). Beoremote HALO, 3xBeoplay Charging pad, Beoplay M5
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Hi Martin,
You're right... One of the problems with being my own editor is that it's difficult to see my own mistakes. Thanks for spotting these!
Fansastic: Are you planning to do more youtube episodes as well? As a complete audio dummy I find myself well educated by you.
Are you planning to do more youtube episodes as well? As a complete audio dummy I find myself well educated by you.
"Planning" and "Doing" are so far from each other these days...
The acoustic tutorial videos are a hobby thing, not a work thing - and the weather's been too good here lately... so my weekends are filled up with dog walking and grass mowing and standing around with a high-pressure washer instead of traipsing around with a camera, making funny noises... :-)
So, to answer your question, yes. I'm planning on it. But I make no promises on WHEN it will happen...
cheers-geoff
Geoff Martin: The acoustic tutorial videos are a hobby thing,
The acoustic tutorial videos are a hobby thing,
I've watched these videos and found it a nice visible way to see what happens with the acoustics in different rooms. Much more easy way to understand than years ago where you needed to draw and calculate yourself on a piece of paper. Call it the advantage of nowadays simulation programs. I've pointed others in this YouTube direction if they want more insight/understanding of what happens in different rooms.
Just wondering whether you still have your "home loudspeaker" (looks like an inflated Beolab 1/Beolab Penta) or whether it is replaced by a nice pair of BL50/90
Geoff Martin: "Planning" and "Doing" are so far from each other these days...
Isn't there a word for this? Procrastination.. Something I always have due to the pile of things I want to do and learn.
One for the plan and do (unless im doing something incorrect) is to overcome a bug on start-up volumes. (as opposed to default volume).
My BL90s love going to full tilt (Vol 90) when I play via an Auralic Vega G2 DAC and XLR.
You have to be very tentative on the B&O App that the slider does not move all the way to max.
Another "Bug" is the trigger sensitivity of XLR - I have this on at -76db but usually I get 20-30 seconds into a track before the BL90s fire up. This may be the processing time, it may be the noise floor - which will be very low on the Auralic.
Any thoughts?
10
Beobuddy: Just wondering whether you still have your "home loudspeaker" (looks like an inflated Beolab 1/Beolab Penta) or whether it is replaced by a nice pair of BL50/90
I still have the "homemade" speakers - although they're disconnected.
My wife told me that I was not allowed to NOT buy a pair of 90's. I promised to love and obey. ;-)
Beobuddy: Geoff Martin: "Planning" and "Doing" are so far from each other these days... Isn't there a word for this? Procrastination.. Something I always have due to the pile of things I want to do and learn.
I prefer to think of it as "prioritisation" instead. This is a form of rationalisation...
Or, as Bernard Williams said "I like the word indolence. It makes my laziness seem classy."
Cheers
-geoff
Mr 10Percent: One for the plan and do (unless im doing something incorrect) is to overcome a bug on start-up volumes. (as opposed to default volume). My BL90s love going to full tilt (Vol 90) when I play via an Auralic Vega G2 DAC and XLR. You have to be very tentative on the B&O App that the slider does not move all the way to max.
Mr 10Percent: Another "Bug" is the trigger sensitivity of XLR - I have this on at -76db but usually I get 20-30 seconds into a track before the BL90s fire up. This may be the processing time, it may be the noise floor - which will be very low on the Auralic.
Geoff Martin:The disadvantage of this is that, if this wakes your loudspeakers, and you never turn off the Auralic, the 90s will always be on, which is a stupid way to heat your house.... Cheers -geoff
New: Beovision Harmony, Beolab 50's, Beolab 28's, Beolab 18's, Beolab 17's, Beosound Stage & LG, Beosound 2, Beoplay M3, Beoplay A1, Beoplay Portal, Beoplay H4 gen 2, Beoplay E8 3.0
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Hi again,
For your information: We're in the final stages of testing a software update that will include a feature that will fix your problem. With the next update, you will be able to select a source manually, which will turn on the Beolab 90s (or 50s) before you press play on the Auralic. This means that you don't have to wait for the loudspeakers to detect a signal and boot up. Of course, the boot up time is the same, but the "trigger" is you, not the incoming signal.
Remember that the default mode will remain the same - automatic detection of the incoming signal to wake the loudspeakers. The manual selection is only for people like you (and me...) who use non-B&O sources for active listening.
Sorry I couldn't reveal that yesterday (which is why I used the word "currently" in my answer). I just got permission to make that small piece of information public, since we're so close to releasing it anyway. (Don't bother asking "when" - we're still testing it, so I can't answer because I don't know.)
Of course, this also means that there'll be an update of the Technical Sound Guides coming along as well. (which will include the corrections to the mistakes that Martin found (see above...))
Have a good weekend!-geoff
Hi Geoff
I'm looking forward to the new software update.
Will this bring the time-out for the USB-Audio input in line with the other inputs? As we discussed privately, this currently has a maximum of only 60 rather than 900 seconds, which means that when I'm listening to music on my Auralic Aries I have to restart the Lab 90s and reset the volume after taking a short break between albums.
The other oddity, as we discussed, is my Beogram CD 5500's habit of turning off the Lab 90s after every disc, but as this seems to be a quirk of the player not the speakers it almost certainly isn't fixable.
All the best, Richard.
Good Day Geoff,
I saw your previous post late last night - thank you for the reply.
1. I have tried to replicate the issue I experience regularly and have been working to proceduralise them in my mind. The issue is associated with a cold start (out of standby) on both systems and I think it is because the Auralic DAC is configured to output without its own volume control at 4v. (DAC - not the Streamer, which unlike the streamer has no digital outputs). The BL90 has also been configured for this voltage too and I keep the volume control strictly with the BL90/Essence remote.
What I see is that rather than adhere to the B&O App "Default" volume, the B&O App, (though not exclusively and assuming the App is only a collator of information), blasts through directly to 90/90 and what I assume is taking an unconstrained DAC output at 4v, to an expected input max of 4v XLR in to the BL90, i.e. 90/90 rather than constrain itself to say 37/90 until a new user command is entered.
2. I find the Auralic Lightning system a bit of a mixed bag. In many ways so good but it is dependent (at I find) on a very fast router. The Auralic quite often takes a "nap" and that sometimes ruins the experience. I guess like yourself, this is often the price we pay for have an effortless ecosystem like the B&Os NL and we bolt on 3rd party gear.
I would like to thank you for the possible "incorporation" of these issues into the the BL90/B&O App software. There cant be many people wanting/needing this and Im sure there are lots of other more pressing priorities you can be working on instead.
Rgds
Mr 10Percent:The BL90 has also been configured for this voltage too and I keep the volume control strictly with the BL90/Essence remote.
Razlaw: Are you saying you can control the volume of the 90s directly with Essence Remote? I have tried to find a way to do that with my 50s but have not been able to get it to work. Currently I control the volume either using the BL50 controls in the app or a BR1 through an ir eye connected to the 50s.
Are you saying you can control the volume of the 90s directly with Essence Remote? I have tried to find a way to do that with my 50s but have not been able to get it to work. Currently I control the volume either using the BL50 controls in the app or a BR1 through an ir eye connected to the 50s.
There is a specific Beolink “eye” (late model?) that can be connected to one of the LAN / IR ports and it is typically sold with a 3 - 5m CAT 5 cable pre-wired (re-wiring shorter/longer is easy).
There is an Essence instruction page on the inter web where you can configure the Essence remote to IR mode. I will PM that over shortly.
It works for volume only and is a tad clunky (but less clunky than the BR1 in IR mode with the same “eye”.
I use the Auralic App for selecting tracks, the Essence for vol control
Rgds 10
https://beointegration.com/uploaded/BeoSound_Essence_Remote_IR_modes.pdf
Razlaw:I am going to have to attribute this to “operator error”. I picked up my unused Essence Remote to try again with the various settings. Turned it and it was in the right setting as the volume immediately began changing. Mute also works. I wonder how long I had it set up right without realizing it worked. 😂
Good to hear. I was researching and was going to suggest Mode 2 then Mode 4. IIRC it was a Beo4 command set up.
Enjoy
Razlaw:I am looking forward to seeing how the Halo might work to control the volume.
Whatever that does/does not, the IR Eye needs to be replaced with a BT one and also the BV Firmware. I dont understand why this one in particular has not been implemented - using Powerlink control in the BV to control the BL90 output volume - even if running 3rd party sources?
The BV10/11/14/Avants could all control the BeoSound 5 volume (in Option 2) when the SPDif is connected directly to the Beolab 5s.
Last weekend I had the priviledge to repair a faulty Beolab 50 for the first time. Always nice to experience something new.
But I have the make a compliment about how easy it is to service and change modules with its service positions.Well thought positions to get easy acces and ways to measure without taking the complete loudspeaker apart (like other BL's)
It made me think about the older devices like the Beovion LX/MX, Avant, etc where these positions were possible to get a nice and clean acces to all the modules.
Well done!
Geoff Martin: For your information: We're in the final stages of testing a software update that will include a feature that will fix your problem. With the next update, you will be able to select a source manually, which will turn on the Beolab 90s (or 50s)
For your information: We're in the final stages of testing a software update that will include a feature that will fix your problem. With the next update, you will be able to select a source manually, which will turn on the Beolab 90s (or 50s)
Geoff,
This is good news as I have suffered similar issues whern trying to switch between analogue inputs on our BL90s. One question though - will the update also make the BL90s switch OFF when you use the B&O App to put them into standby? Currently the App merrily informs you that it has done this, but the BL90s stay on until the timeout has elapsed.
Adam.
Hi guys,
I also have problems sometimes with my Beolab 50 which going full tilt (vol 90) sometimes.
I have an Auralic Aries G1 connected with Coax digital cable directly to the Lab 50.
If I start up the Auralic with Lightning APP and start a track then the speakers wakes up and start playing. For most of the time the choosen "start-up volume" will be in use. BUT sometimes the volume slider go to full volume and a panick attack reach me and other people in the house.
Does anyone else except for me and mr 10percent experienced this problem (software issue) with the Labs 50/90?
Why will this happen? I am not using XLR (Beloab 50 dont have that input) but I use Coax-digital input from the Auralic device.
Best RegardsMartin
SWEDEN