B5 Opening Ceremony - Active vs Passive

[Melon Head]

Just by getting rid of the crappy inductors I have managed to get a significant improvement in efficiency.
I will work on the crossover now

Black is the old passive crossover and Blue is the initial response with inductors removed

 

[Melon Head]

Now I will work on getting it flat

 

[Melon Head]

Had to do a phase reversal on the FR driver

 

[buzzforb]

Dave at Planet 10 says he likes only 3dB of baffle step vs 6 often used. Cant remeber if it is built in with B5?

 

[Melon Head]

Guess what?
I hate BSC by attenuation. It sucks all the air and clarity out of the music.
I am finding it sounds much better by correcting with gain using a DEQ or .5 way or just play with the baffle dimensions etc
Don't ask me why it sounds better. I have no idea. It just sounds significantly better

 

[Melon Head]

New response curve

 

[Zen Mod]

basshead

 

[Melon Head]

Thanks Nelson
I won't be going back to Inductors

 

[Melon Head]

I will do an A/B test later

 

[kevinkr]

Removed a couple of inappropriate posts, let's stick to topic please.

 

[kevinkr]

Guys, I think some of you need to reread the forum rules.. Commenting on moderation directives is a violation of forum rules, so going forward please don't! Thanks!

 

[Melon Head]

Zen Mod you are so bad

 

[planet10]

Dave at Planet 10 says he likes only 3dB of baffle step vs 6 often used.

That would be a misquote. 6 dB is very often too much because speakers usually interact with the room (room gain etc). I rarely use an BS EQ.

dave

 

[buzzforb]

Sorry Dave. Thhought i read it on T-linespeakers site.

 

[planet10]

Here is what i say on TLS.org

Baffle Diffraction Step

dave

 

[Melon Head]

don't need big email

txt is short : put halcro in

How about lu1014d frontend connected to lateral mosfet circlotron (unfinished Dumb-O-Tron) output?

Probably stick with the Balanced BA3 front end

 

[Zen Mod]

you can use bloody KП903A (2П903А) , fed with 50mA each side of differrential

basshead

 

[buzzforb]

Toob susy

 

[Zen Mod]

ya need ball$$ & mileage to make it right

besides , there is a reason why Gray Head invented Ultra Symmetry ........... and he 's probably with reason liking it more than Supersymmetry

edit: there is a finished and tried bloody serbian toobsusymosfetcircl , linked somewhere in dumboth thread

 

[buzzforb]

Clearly beyond me. Gotta at leasr try simply SUSY. Cant even fathom ultra symmetry. Somewhat like Juma opa opa beast?