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Old 1st December 2006, 10:37 PM   #21
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by Geoff H
Zen Mod, wasn't Westrex Western Electrics? And Western Electrics a division of the Altec Corporation or LTV?

I don't think your off topic. Talk about University and JBL if you wish, they're all related. Just because Ling and JB drew a line in the sand doesn't mean we have to.
............................

Geoff


yes,I know that ........ Western Electric,Western Electric for export,All Tecnicall Division.......
I have all issues of Sound Practices,if nothing else

btw.
there it is (from my little web place) :



Click the image to open in full size.
and real picture (taken from one Croatian friend),but pretty "cannibalized" -with something newer horn and newer bass unit ........

Iskra boxes are often delivered with origigi Westrex cinema x-overs
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Old 1st December 2006, 10:39 PM   #22
phn is offline phn  Sweden
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Quote:
Originally posted by Geoff H
Zen Mod, wasn't Westrex Western Electrics? And Western Electrics a division of the Altec Corporation or LTV?

Geoff
Westrex=WE=Altec, indeed. I don't know the ins and outs, though.

The fabled 755A FR driver was introduced by WE in 1940 and later made by Altec. Let the (Japanese) fanatics buy the WE labeled 755A drivers. By any event, the Altec labeled ones will not be inferior.
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Old 1st December 2006, 11:17 PM   #23
vuki is offline vuki  Croatia
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Here is my 2-way Altec. 416-8c in bass-reflex enclosure and 288k-8 (with Greatplains aluminium dias) with JM LeCleach horn.
Sounds wonderfull
I also have 902-8 with round tractrix and 414z waiting for the box.
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Old 1st December 2006, 11:57 PM   #24
Pano is offline Pano  United States
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Cool!

Is that gold leaf on the horn?
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Old 2nd December 2006, 12:04 AM   #25
Geoff H is offline Geoff H  Australia
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panomaniac, the 411's are a bit down on sensitivity. Some specs quote
91 dB others 93 db at 4 feet. Some quote fs at 15hz, others 18hz.

The sheets that came with mine say 18hz and pencilled in 93db/1w/1m
113db/100w/1m.

In a 5 cub foot cab, they do go down to 20. It must be airtight. With up to 150 cubic inches of cone dissplacement, leaks will hiss. And you do have to pay attention to tone arm / cartridge resonance, and lubricate spindle bearings regularly. And yes, smooth, and retain that lower midrange pressence, without giving the girls that "on steroids" feel. And Altec's power rating is conservative at 60w. Mine never complained with 100+ watts, going to almost clipping. That was on a dance floor. Yes, I know, wrong application, but they did the job, and no wife factor.

The 30904 network had a shelving attenuator to pull the midrange down, effectively extending the upper treble.

They still need a large room, even with a different top end. I'll explain the evolution of my top end later.

Geoff
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Old 2nd December 2006, 12:06 AM   #26
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by vuki
Here is my 2-way Altec. 416-8c in bass-reflex enclosure and 288k-8 (with Greatplains aluminium dias) with JM LeCleach horn.
Sounds wonderfull
I also have 902-8 with round tractrix and 414z waiting for the box.

and tnx to colour this pair of boxes have high WAF........?!?




this days I'll try to locate one or few origigi EZ1606 Iskra bass drivers....to mate with one i have
when refurbished ( with appropriate spider and surround , along with phase plug !) they have all Altec qualities ,as speed and enormous freq response; I heard once pair of them ,made like that - they needed just compression driver as helper,crossed just with one VitQ at some 16K

crossing my fingers ........
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Old 2nd December 2006, 12:13 AM   #27
GM is online now GM  United States
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Quote:
Originally posted by Cal Weldon
I am currently upgrading the A7 boxes to a 3 way with the existing 511 horn for the mid and an 811 on top for the highs.
Greets!

FWIW, you may want to try stacked 511s EQ'd flat. I use to do this for band/PA and it worked really well. A511/811 stack won't have as good a pattern over as wide a BW.

GM
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Old 2nd December 2006, 12:15 AM   #28
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Default Altec 1803B

These Altecs were my babies. Had to sell them when I moved to Australia.

They make 1505Bs seem positively tiny. These multicells are absolutely the best midrange I've ever heard. Bigger is always better!

I used enormous RCA manufactured bass bins with these and not Altec, so they're off topic.
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Old 2nd December 2006, 12:22 AM   #29
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I have a pair of 511B's waiting till next year for drivers

Rob.
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Old 2nd December 2006, 01:00 AM   #30
Pano is offline Pano  United States
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Default Re: Altec 1803B

Quote:
Originally posted by jeff mai
These Altecs were my babies.
Ah yes, the 18 cell horns. Marvelous. And Big.

Didn't we exchange emails a year or so ago, Jeff? From over on AA. I don't think I know anyone else who ran 1803s for HiFi. What driver did you use?

Had to sell 'em to moved to Oz??? Why? They have more room than they know what to do with down there.
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