Driver on 4430

[leif]

I know I have red it somewhere, but can not find it back...
what HF drivers has been used on the 4430?

[Maron Horonzakz]

I have a AES paper on the 4430 It states the diaphram has a three dimensional diamond pattern suspension. The photo looks like a 2420 variant. But Im not shure.:blink:

[pelly3s]

2426 and i may be wrong but some of the earlier ones came with an alnico driver i believe a 2421 (dont hold me to that though)

[leif]

Thanks, that was what I was hoping to hear.
I took off the 2235`s today, and looked inside the boxes, seing an alnico driver in there. And sat down and thought "isn`t this speaker design from the early 80s, and did they use alnico then?"
So for a while I was worried that it was not original drivers.


Thanks again for answer.

[Alex Lancaster]

:) The first ones came with 2421A's, later 2425H´s, I don´t think they ever got to using 2426's, but they are almost the same as 2425's anyway.

[JBLnsince1959]

I always thought they used all three, 2421A, 2425 and 2426

[Zilch]

If you've got 2421A's in there, be very happy. That'd be "first issue," and to me, the aluminum diaphragms are smoother sounding than the subsequent titanium in 2425/6.

Any time you want to give them up, I'll trade you straight across.... :p

[pentictonklaus]

I have replaced one of the 2425 h in my 4435's with a 2426. I had an extra 2426 h so I did not have to put money out for a new dia out at that time. I do not know how you can blow a 2425 in a 2344 horn without turning deaf, but I bought the 4435 that way.

There is no difference in regular listening as far as I do notice.

[Mr. Widget]

I do not know how you can blow a 2425 in a 2344 horn without turning deaf, but I bought the 4435 that way.

There are two ways.... three if you count electronics failure with some upstream device crapping out and sending a deadly signal to the speakers.

The most common would be clipping a small amp. The second way would be as you suggest, by playing them damn loud... :eek:

Widget

[pentictonklaus]

There are two ways.... three if you count electronics failure with some upstream device crapping out and sending a deadly signal to the speakers.

The most common would be clipping a small amp. The second way would be as:eek: you suggest, by playing them damn loud...

Right you are Mr.Widget But there is however a most common way of blowing them. Operator's error. I had my 2.5 year old turn all my settings to max. while not watching for a second.:
2 crown Dc 300 a in mono to max
1 crown Dc 300 a to max
crown 150 pre to max
jbl M 522 to a out to lunch crossover hz.

She managed to turn the system on, and was just ready to turn on the
" pink noise switch " on the Revox CD player. To high in the rack, no damage done.

I wonder how many " pro's " when tired went for that ?
And yes a blown amp with end transistors putting out 70 volt dc sends
drivers to recone.

[Figge]

She managed to turn the system on, and was just ready to turn on the
" pink noise switch " on the Revox CD player.

witch model you have?

[pentictonklaus]

Revox B 225. Nice sounding player. Can not play some of the newer
CD-R, or CD rw. But makes up for that big time. I do also have some older
Proceed players. Same problem, yet nice. Thank's for asking.