Hey everybody
My cabinets are about 20 years old and i would like to start a new DIY-project.
My set up:
2235 H
2118 J
2404 H
Amcron 1201
They sound loud and powerfull but i would like more low end and more hifisound. Should i go with two 2235 H per new cabinet and replace the 2118 J or the 2404 H and biamp them ?
Any idea?
Thanks for your help
Regards
Klaus
Is the picture upside down?, if not, put the woofers on the bottom.
Hey, Klaus...
Great idea to put this to the Forum!
Alex is right - you should get better imaging with the HF closer to ear-level. That will bring more HiFi sound.
What is the interior dimension of that cabinet (less the interior volume of the 2118 subenclosure)?
What is the port tuning?
What network are you using?
bo
"Indeed, not!!"
Originally posted by boputnam
Hey, Klaus...
Great idea to put this to the Forum!
Alex is right - you should get better imaging with the HF closer to ear-level. That will bring more HiFi sound.
What is the interior dimension of that cabinet (less the interior volume of the 2118 subenclosure)?
What is the port tuning?
What network are you using?
The interior volume is 5,3 cf. Subenclosure 0,5 cf
The port : 3,94 X 3,94 X 5,51
The network is DIY. Unfortunately i do not know much about it.
Thanks
Klaus
Klaus,
Sounds like you have a well engineered system, I recall kits marketed by Goldsound in the USA using similar components.
You could try bi amping the system after the 2118 crossover point to extend the performance or better capacitors in the passive crossover.
Alternatively, if you were to lay the system on its side with some low profile stands you could add a mid range horn on top like a 2397 (see the Library for alternatives) between 1200 - 8000 hertz and upgrade the crossover network.
This would sharpen up the clarity of the system and make it more of the classic 43xx vintage.
Another idea is to replace the 2404 with the 2344A/2426 driver, again crossing over around 1000-1200 hertz, the 2344a has found favour among our most senior members.
If you check out the Widgets 4355 thread he has the horn resting in the top of the enclosure.
I expect you would find this an advantagous way to start a new diy project with your existing system.
Ian
Well done, Aussie!!Originally posted by Ian Mackenzie
...I recall kits marketed by Goldsound in the USA using similar components.
Gold Sound Kit 11
Notice they cross at 300Hz and 5,000Hz...
I'd say you're on to something, Klauss. Notice the orientation of the cabinet, and the "reviews"...
Gold Sound Link
bo
"Indeed, not!!"
Hello Klaus
That's a nice set up. Should kick. I would take a look at the Gold kit posted, reorient the drivers into an offset vetical array and see what's up with the crossover and tunning on the box. You have dimensions and depth on the port so we can get an idea where the box is tunned??
Rob
Thank you all for your help.Originally posted by Robh3606
Hello Klaus
That's a nice set up. Should kick. I would take a look at the Gold kit posted, reorient the drivers into an offset vetical array and see what's up with the crossover and tunning on the box. You have dimensions and depth on the port so we can get an idea where the box is tunned??
Rob
Interior volume is 5,3 cf. Subenclosure 0,5 cf
The ports : 3,94 X 3,94 X 5,51
What about two 2235 H per cabinet?
Regards Klaus
Hi Klaus!
This is what I got in BB6. Looks good!
For me this sounds like a xover Prob.
Could you show us a pic of the xover?
Hey GuidoOriginally posted by Guido
Hi Klaus!
This is what I got in BB6. Looks good!
For me this sounds like a xover Prob.
Could you show us a pic of the xover?
The pic from the xover comes soon. I have to open the cabinet.
Klaus
Originally posted by Klaus
Hey Guido
The pic from the xover comes soon. I have to open the cabinet.
Klaus
Here's what my run at BBPro tells me - Fb is 29.6Hz.Originally posted by Robh3606
You have dimensions and depth on the port so we can get an idea where the box is tuned??
I've assumed:
Net volume = 4.8ft3 (net of sub-enclosure)
Damping = "Typical" (cabinet walls, none on baffle)
QL = 7
QLv is default (not specified)
bo
"Indeed, not!!"
Venting:
bo
"Indeed, not!!"
Hey, Guido...Originally posted by Guido
This is what I got in BB6. Looks good!
What Fb did your run yield...?
bo
"Indeed, not!!"
The crossover looks okay for a production unit.
The 2nd crossover point is a stretch for both the midrange and tweeter, this is where you can amend the design by adding a horn and driver.
The guys can help you out with the re work on the crossover.
If you seriously wont to play with different kinds of drivers consider an electronic crossover unit. Robs system is setup like this, ask him for details. You could then use an upper midrang dome like the 093 and a dome tweeter like the 035/055/066...very hifi.... without having to consider matching driver sensitivity as you do in a passive crossover.
The system will give differing bass response pending position in the room as configured, better to have lesser bass than boom.
Where are your Boxes located? The repositioning the boxes.
What sort of amplifier are you using?
The thing about JBL is you can always add a little bass in with an Equaliser or tone controls to extend the bottom end.
Ian
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