Wow, so different but nice different 
Bet you have had visitors going: “….and now what’s that?”. Enjoy Peter
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Different but a nice different as PeterR has posted they look totally different in a domestic room environment.
Wow… They look fantastic. Thank you
Yes! er maybe?
Glad you are enjoying them. I understand the 701 premiums are a very capable speaker.
I bought my T-60s ex-demo. The new Ace models had recently been announced. I’m not quite sure what the UK distribution arrangements are at the moment.
They are quite something. These specs are from Peter Tyson - I assume they are accurate.
A couple of questions if I may:
- How do you have the DSP set? I understand you can set it differently to obtain different sound fields/characters.
- Do you need to move them often? At 137KG each I assume they take some moving.
- If you wanted to, could you use them with a Naim front end?
Stunning !! 
The speakers come with a microphone and you should buy a microphone stand for a few quid. The app and online video guides you through the room compensation process. It applies correction across the audio band but is also tweakable if you fancy a little extra bass or little less treble etc…
Secondly, the radiation pattern or beam can be rotated if you sit in different parts of the sofa or the room. You can do calibration for the different listening positions. The beam width control can be set to wide or omni if you have a party so the sound is less corrected rather like a lighthouse being turned into a camping light radiating in 360 degrees.
The DSP also checks impulse to ensure sounds start and decay as accurately as possible.
I have never moved them as the room calibration negates the need to move and experiment. The ideal placement is described in the white paper.
Yes, you can add a Naim front end or front end of any kind. I use Toslink and Coax digital in. It has analogue RCA and XLR balanced. I have a record player into them. The digital inputs are all upsampled to 24/192 before being sent to DSP that applies filters to all 14 speakers per channel.
Finally, the speakers compensate for each other in a room as the contribution of both can setup reinforcements, nodes. This is a step up from previous generation of Beolabs that only corrected for one speaker alone and the Room.
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Curious, the maximum bass output (it doesn’t state over what frequency range) is half the ouput power of the overall output - so at ultimate peak level there will be power compression or distortion at the bass end. (I’m assuming that at lower levels the bass output matches the rest of the range?)
Of course it is likely to be academic in smaller living rooms even at realistic listening levels as only the Telarc 24 bit version of Tchaikovsky’s is might hit that, however could be significant if played in uk typical(!!) living room of 2000m2… 
Are they comparable to the Meridian active speakers with DSP?
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I’ve heard the Meridian and the BL90 far surpass the Meridian’s top model. The comparable Beolab would be Beolab 5, now discontinued though the Beolab 5 had acoustic lenses and bass linearisation which the Meridian didn’t. The Beolab 90s go further. Have a watch of the video above.
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Apologies, i don’t know the answer to this question. Perhaps the white paper PDF I’ve attached above answers that. If you’re seriously interested then Geoff Martin at B&O could answer that. He’s contactable through B&O Struer. Great guy, super approachable and knows as much as anyone about acoustics and speaker engineering in the world.
I’ve removed the links - as per forum rules re. unauthorised commercial links, please don’t post links to B&O in here, thanks.
Well I didn’t think I’d see these on the Naim forum. Amazing acoustic engineering and they look good in your room. Enjoy
Ok. So on this forum unlike other forums the rule is you can’t post external links. The YouTube link has also been censored as well. Happy to comply and not break the rules.
If you’re interested there’s a shed load of YouTube videos on these speakers and if you type in Beolab 90 Technical Sound Guide into a search engine, you can dig for more details, including technical setup, specs, performance characteristics, etc…
Hello Ross, no, you are not mad in my opinion. In the end it is your money and you have to do what feels best and what fits best in your living room.
Since this is a Naim forum, not everybody can/ will accept this, but go ahead!
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WOW stunning 
thanks for posting read your post enthralling thank you. My ownership of Bang and olufsen not in the same league unfortunately I’ve been a proud owner of bang and olufsen beovision TVs for over 30 years i will not consider any other make currently own beovision 11
They are without doubt superb in every way very stylish, picture quality, sound delivery and more over reliability length of service. They are a thing of beauty yes very very expensive but worth every penny. Unfortunately some people do not take Bang and olufsen seriously. keep posting 
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Very impressive, quite imposing aren’t they. I have auditioned the 50’s, but not the 90s. They had a comprehensive write up in HiFi Critic a few years ago. B&O seems to be very committed to DSP and they don’t do it by halves. I hope that your home is structurally up to them. 
When I asked if my local B&O dealer had a set of Beolab 50s for a home demo, he told me we normally have to order them in because when we send our demo speakers out, the recipient usually buys them and we don’t get them back, but then I guess he would say that wouldn’t he!
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If you are happier now, that is all that matters.
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