According to data sheets downloaded from altecpro.com, the 416-8A has a 2.4 pound Alnico magnet with 12,000 gauss flux density, the 416-8B has a 39 ounce (2.4375 lb) Alnico magnet with 11,000 gauss, and the 416-8C has a 4.875 pound ferrite magnet with 11,000 gauss. As you can see from the composite picture I attached, the magnet on the B version has a different shape from the one on the A version. The 416-8B data sheet was dated 12/87. So far it appears that the A version can use either basket with the same magnet structure. I'll take a look tomorrow for the date code on the one with the cast frame.
Attachments
the '260' amplifier
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the '287' amplifier -
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bobd53 said:
Cool. Looks like what you and I have are the "A" magnet with "B" frame. Wonder how many of those were made - and when?
tomtt said:
I have no idea where those were taken, I just grabbed them from the 'net. Here in Vancouver we get at least 3 or 4 days of sun every year.
Hey Tom, I know we're a very large but seemingly little country but I still think we deserve a capital C, don't we? 😉
Cheers.
In the 816A: 515G-HP, + Mantaray; MRII 594A; 299A HF drivers.
Still looking for a pair "supertweeters" for the top...
The dbx DriveRack 260 is like an expensive Behringer DCX2496, x-over & eq in one.
I switch between this and a diy "Active Filter Four", but some eq is needed...and I'm still looking for a good analog eq.
Arne K
Still looking for a pair "supertweeters" for the top...
The dbx DriveRack 260 is like an expensive Behringer DCX2496, x-over & eq in one.
I switch between this and a diy "Active Filter Four", but some eq is needed...and I'm still looking for a good analog eq.
Arne K
Cal Weldon said:
Certainly.
besides we know where 'our' snow comes from.
would not want that embargoed.
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tom..great pics as allways, thanx
yes Canada deserves a capital c...and then some
and 816's are not bass horns,no offense, i own a pair,515ghp's make them more than impressive, but crap..210's aint even bass horns. problems is..there's not a single sub that can keep up with them!long live ma bell.
yes Canada deserves a capital c...and then some
and 816's are not bass horns,no offense, i own a pair,515ghp's make them more than impressive, but crap..210's aint even bass horns. problems is..there's not a single sub that can keep up with them!long live ma bell.
arne..great lookin' rig..hope the neighbors down the block love your music..if not, glad you like it, hehehe
really old 412 w/utah frame and small horn -
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