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
"You think we can slap some oak on this thing?"
That is what usually is recommended in such cases.
MM
There is a tv - and there is a BV
Of course you could rip out all the electronics. You'll just need to know the crossover frequencies of the speaker chassis inside the Beolab 7.4 and a passive frequency crossover with matching frequencies that you can install in the 7.4 housing. Than you can use it with every external amplifier.
I guess it will be very interesting to listen for the differences of the passive version and the B&O active version.
leogoeswild:Would this unit from Steve solve the problem? https://soundsheavenly.com/line-in-connection/33-power-amplifier-to-beolab-line-in-attenuated-convertor-kit.html
I recommend this too. That way you can fully preserve the original sound. Plus, as the loudspeaker relies on ABL for low-end extension, you would lose a significant amount of bass in an active to passive conversion.
— Tuomas | Bang & Olufsen | Bang & Olufsen Create
leogoeswild:How would one duplicate a crossover?
- You can search if a crossover with the required crossover frequencies is available as a ready built component
- you can build one yourself or let somebody build one for you. If you use a separate amplifier for your passive speakers you can also have a look at the professional speaker management speakers, starting with a cheap one like the Behringer DCX2496. There you can adjust everything you like with many many parameters. https://media.music-group.com/media/PLM/data/docs/P0B6H/BEHRINGER_DCX2496%20P0036_Product%20Information%20Document.pdf
Hi Leo,
If your receiver doesn't have pre-out sockets fitted, then there is no need to remove the amplifiers from the Beolab 7-4 speaker. Instead, please use this attenuator on the speaker terminals of the receiver to safely reduce the output levels (this effectively adds external pre-out sockets to any receiver):-
https://soundsheavenly.com/line-in-connection/33-power-amplifier-to-beolab-line-in-attenuated-convertor-kit.html
As the Beolab 7-4 speaker doesn't have a Line input option, it also needs a powered cable to generate the trigger signals that would normally be sent from a B&O television:-
https://soundsheavenly.com/line-in-connection/singletwin-rca-to-beolab-2-7-10-2500-powered-trigger-kit
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!
Please check out my YouTube channel at https://youtube.com/soundsheavenlycables
And Beolab 7-4 speaker.