Thank you to all: my setup

[Dieter]

Hi to all!


Thank you for this forum and the help about reading all your posts!

Now I want to show you my DIY-JBL-Setup.

The components are:

2 JBL 2226H in separate 5cu-feet tuned to 40 Hz parallel
JBL 2360 Horn with JBL 2450 with JBL D8R2450SL
JBL 077

Crossover DIY (a little measurement and trail & error).

Electronics are:

Meracus Imago/Flagrare (CD)
ASR Emitter II (Amp)

Regards
Dieter

Sorry, i have problems to upload the pictures!

[Dieter]

The setup

[Dieter]

The crossover

[Dieter]

Frequenzy response in my room:

The micro drop at about 13000Hz and is not calibrated.

[Earl K]

Hi Dieter

Good Work !

What sort of paint did you use to get such a nice finish ?

I like your crossover. Are those a whole bunch of paralleled, "motor-run", small-value (uf), paper in oil types ?

regards <> Earl K

[Dieter]

here is the crossover-schematic:

[Dieter]

"What sort of paint did you use to get such a nice finish ?"

It is normal lac lacquered withe a role 3 times and sanded between lacquering

"Are those a whole bunch of paralleled, "motor-run", small-value (uf), paper in oil types ?"

Yes, those are paralleled paper-in-oil-typs in small values, the most are 1 uf, the biggest is 4 uF.

For the 077 the are bypass "glimmer" 2700 pF.

Dieter

[Earl K]

Hi Dieter

(a) In your picture you show 3 potentiometers doing various functions.

- What is the function of the 2nd (middle) one ? - The one that has all the wires coming and going from it . I can't find a pot. in your schematic that would require all those connections .

(b) Why did you decide to go with that approach for attenuation, ie. variable pots ( or rheostats ), strapped in parallel with the load - instead of the more traditional inline/series Lpad approach ?


thanks <> Earl K

[scott fitlin]

Excellent paint job!

[boputnam]

Hey, Dieter...

That is beautiful work! Those look professional finish - like something Audiobeer would do!

Question: Why is your horn mounted in that position, rather than horizontal? Are you hearing more L/R separation this way?

[Niklas Nord]

very very nice Dieter!!
Looks really nice indeed!!!!!

[Ralf]

nice system

[Audiobeer]

Beautiful Job! Isn't laquer great! What did you rub it out with?

[Dieter]

"What is the function of the 2nd (middle) one ? - The one that has all the wires coming and going from it . I can't find a pot. in your schematic that would require all those connections ."

I will try to explain in my basic english:

from inductor-coil i can use six different values from 0 mH - 0,6 mH, to affect the frequency-resonse around 5000 Hz.


The big horn is laquered by professionels , i think it is not possible to laquer it by myself in such a quality.

"Question: Why is your horn mounted in that position, rather than horizontal? Are you hearing more L/R separation this way?"

It is angeled to my listening position on a couch.

here is picture in true colour:

[boputnam]

Originally posted by Dieter
"Question: Why is your horn mounted in that position, rather than horizontal? Are you hearing more L/R separation this way?"

It is angeled to my listening position on a couch.

And, according to a pm I just got from Widget (hey Widget, your Inbox is crammed... ), that horn was designed to be positioned with the throat vertical.