Jbl 4560

[jbl007]

Can i use altec ER-15 jbl 4560 cab?which one is better this element,altec 816A/jbl 4560.

Juha,finland

[jcrobso]

Can i use altec ER-15 jbl 4560 cab?which one is better this element,altec 816A/jbl 4560.

Juha,finland

Many different speakers have been used in the JBL 4560, mine have JBL 2205s in them. I have seen others with D130Fs in them. I have seen some with non JBL speakers. The main thing to remember that the horn loading increases the efficiency of the driver.
Another thing is that the horn part is very efficient when compared to the bass reflex part. The bass will be very good down to about 100~120hz where the horn cuts off, then there is 6+db drop for the output of bass reflex part. If deep bass is desired the you need to add a sub woofer.
Also because of the throat of the horn is smaller than 15" you can have a problem with the cone hitting the front baffle board and frequencies blow 100hz.
Do you have both drivers?

[jbl007]

I have pair very good shape altec ER-15.I also have 511B altecs horns and 908-8b drivers.network is 3110(800hz).I think built twoway cabinets those stuff.

[jcrobso]

I have pair very good shape Altec ER-15.I also have 511B Altec horns and 908-8b drivers.network is 3110(800hz).I think I will build two way cabinets those stuff.

As I said before only the low bass will down a little from the bass horn, everything else will sound good.