newbie: 2226H and 2426H DIY, thanks!
Hi everybody, this is my first post here, though Iīve been visiting the forum from some time ago.
Some months ago I tried the lansing plunge and bought a pair of A7s: 828 cabinets, 515-8G woofers, 511B horns, 808 compression drivers and 1631A active crossover w/500hz module.
I do like some things that these speakers do very well: dinamics, huge sound, presence, etc
However, there are other aspects that make them sound like a 1970 movie (thatīs what they were intended to ...) and I think that are not up to modern hifi standards, in particular, a shout around 1-2 khz and one-note-bass from 100 hz down
I plan to do all the standard updates: brace the bass cabinet and horn, reduce the vent surface and tune it to 40 hz, damp the 511 horns, try a 800-1200 hz XO, maybe 902-8C drivers ...
And here comes my question.
2 audio buddies have listened to these A7s and suggest a different approach, to build a DIY classic combination, with JBL 2226H woofers and 2426H compression drivers
they have the drivers as a spare and will borrow them for free, and the cabinets will be proffessionally done
The target is to get strong and "flat" 35/40 hz to 16-18 khz, around 95 db sensitivity
the idea is:
3 - 3.5 ft3 reflex cabinet
bass port tuned to 35-40 hz
passive XO around 900-1100 hz
no EQ
this tractrix 350 horn: http://www.horns.pl/tractrix350.html
they are sound engineers and know what they talk about
however, as sound engineers, they have wooden ears (hey folks, if yoy read this, Iīm just kidding, no offense here ... :p)
As I live in a small corner of the world, I canīt listen to the stuff, and have many questions about this project:
My amplifier is a 4 watt SET amp (Fi WE421)
Shall I drive the 2226H with it?
What about GPA 515 LF or 416-B woofers, instead of the 2226?
How will the 2426 driver work with the tractrix 350 horn?
Can I get "flat" 900-18000 kz to 95 db with it?
Right now the 2426 have aftermarket diaphragms
Is there a lot of difference between aftermarket, D8R2425 titanium and D8R2421 aluminium?
For the price of 2421 aluminium diafragms I can buy brand new BMS 4552nd drivers, so what about BMS 4552nd compression drivers against 2426H?
What about the XO point?
maybe 40-900 is too much for the 2226 and 900-18000 too much for the 2246?
Any help and ideas will be appreciated
thank you very much in advance :)