There are days when I fret for the future of the human race...😉

Puncher wrote:

Dillen wrote:

1 ohm was 1 ohm 30 years ago and it is still 1 ohm today.
The same goes for the T/S parameters.

😁🤒

Don't you know, T/S are irrelevant, what matters is if the drivers are "high end" and go to 40khz! 😕

I've seen lots of (mainly) young people believing they can easily improve the world, merely by
replacing ancient (read: ten year old) stuff with the latest off-the-shelve craze (sigh).
But, by all means, go ahead. It's your speakers, experiment and let us know.
I'm sure, you can make the speakers sound somewhat different.

But if you seriously want to improve the speakers, I suggest you start with the parts that was
the reason for the necessary compromises, the engineers had to face.
In case of the Beolab 8000, this will definitely be the cabinet.

Then, with a new cabinet, more suitable for high-end sound, go and find suitable drivers and
calculate filters etc.
Then listen and measure.

Martin

The motto seems to be;

The higher the specs, the better the speakers  😠

MM

Jeff wrote:

Puncher wrote:

Dillen wrote:

1 ohm was 1 ohm 30 years ago and it is still 1 ohm today.
The same goes for the T/S parameters.

😁🤒

Don't you know, T/S are irrelevant, what matters is if the drivers are "high end" and go to 40khz! 😕

Can someone explain to me why having a speaker that can go to 40khz is of any use (apart from annoying dogs and bats) if the normal Human range of hearing is only from 20hz up to 20khz?

Dave.

You don't even annoy the dog or bats that way!

You won't get any sound above approx 22kHz through the tweeters anyway.

Not unless you....tweak the amp and the complete feeding audio chain before that - including the source material/the music.

It is all for the specs.

MM

Millemissen wrote:

You don't even annoy the dog or bats that way!

You won't get any sound above approx 22kHz through the tweeters anyway.

Not unless you....tweak the amp and the complete feeding audio chain before that - including the source material/the music.

It is all for the specs.

MM

Exactly.  So what is the point?

I'm surprised that someone who works for B&O feels that the BL8000 is so out of date and doesn't perform well enough that they think as a hobby DIY job they can do better.  However, as they are his speakers he can do as he wishes and I wish him well.  Maybe once they are finished, the results can be posted here.

Dave.

Don’t think anyone here is trying to make fun of you. They are just not convinced, in contrast to you that the Beolab 8000 could benefit from new speakers. I'm also not convinced that in this case it would better, on the contrary worsen the speakers. But its your money and you spend it the way you like.

Jeff is highly experienced in audio, and I myself am not a rookie in upgrading. You would indeed more benifit in doing an upgrade of the caps and resistors in critical paths and leave the speakers in the cabinet. Don't forget, if you make a step forward next step could be two backwards.

Do you want some caps, resistors? I have tons in here. Mundorf's, Audyn's, Intertechnik's, Vishay's... I spend way to much money on those things for what it really yields.

Beolab wrote:

Hahaha!

Jeff and the rest of you who try to make fun of me here: you don't know any thing about my knowledge for engineering do you?

Why do you think, someone tries to make fun of you?

And do you know anything about our knowledge for engineering, then?

I know enough about speaker design and calculations to know, that to improve a speaker like
the Beolab 8000, the weakest points must definitely be addressed and if B&O had the
opportunity to do it, they would have and an increased driver cost of a few pounds per
produced unit would not be a problem, the selling price, large-scale ordering of parts and
the overhead taken into consideration.
I also know enough to know that if you are looking to replace a specific driver with
"something else", that should "work better", the physical dimensions and it's physical
mounting (the "hole" - to use your own terminology) is something that will have to be
considered far later than the choice of T/S parameters and cost.
But - as said - cabinet design limitations rule here.

I have worked intensely on B&O audio units for more than 40 years, how many years of experience do you have ?

Martin