Hello !
i bought a pair Altec 604E . Make mesurements , both drive 604E have
LW drive - 8 Ohm
HF drive - 6 Ohm
Audiophiles , pls, help with electronic scheme .
my email :
[email protected]
Thanks to all !
Alex
Moldova , Republic of
Hello !
i bought a pair Altec 604E . Make mesurements , both drive 604E have
LW drive - 8 Ohm
HF drive - 6 Ohm
Audiophiles , pls, help with electronic scheme .
my email :
[email protected]
Thanks to all !
Alex
Moldova , Republic of
Hey Alex,
You should use the PM's/email links, the roving Bot spiders and others can pick-up your email address and then you have a problem with spam an other possible issues !
Good Luck w/project
P.S. you may want to ask a MODERATOR to edit that for you."Unless it is a Disposable Address". You can give your email through PM's privately.
"James B. Lansing" = Lansing Manufacturing ~ Altec Lansing ~ JBL
The N1500A is suggested as being a good match at the jmarkwart site.
The N1500A is suggested as being a good match at the jmarkwart site.[/QUOTE]
N1500A in the jmarkwart site for 16 oHm , as i think ....
will be compatible with 604E - 8 ohm ?
OK, I think I understand the question better now, and perhaps the source of some confusion.
Per this listing (if it is correct):
http://alteclansingunofficial.nlenet...ele-Small.html
the DC resistance measurement for the 604E driver is -supposed- to be around 7 ohms.
The 604-8H has a different compression driver phase plug, and a different horn,
so one might expect the crossover optimized for the 604-8H to be less optimum
for the 604E. I have neither the drivers nor the crossovers to validate this assumption
(I will accept 604-series donations though ).
Unless I'm still not understanding (quite possible), it appears that jmarkwart's
advice of the N1500A crossover is still appropriate, or you will need to experiment.
7 ohms in the referenced T/S table is for the bass driver
(as are the rest of the values on that line)
The HF driver impedance will depend on the diaphragm installed, but
my understanding is that it has a 16 ohm rating in it's frequency operating
range (DC resistance can be much less).
There's at least one other thread here that is related (604E) and
many more Altec-experienced members that may want to jump in.
i confused , because tim eto time on eBay i find sale 604E with photo tester which
gave :
LF = >11,4 - 12,5 oHm
HF => 8,7 - 9,1 oHm
as example , my 604 E
HF - 6 ohm
Sorry for having to ask this, but did you zero your
meter first? ... often a requirement for accurate low
resistance measurements.
All I can say is the DC resistance LF measurement seems high compared to the
sparse information that I could find published on the 604E. Someone with more
Altec experience/knowledge or a known-good/stock unit in-hand to measure will
have to respond.
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