9880-8a?

[RonSSS]

Anyone familiar with these?
18" long throw woofer in a 5.1 cubit foot vented enclosure.
Woofer is a 3818

A pair for sale locally for $250.

Ron

[bowtie427ss]

They don't look like much fun below 50hz, the FR plot on the PDF rolls off so steep below 50 that it appears hi pass filtered, i suppose that's characteristic of the box and it's tuning?

Looks like in lieu of really low, they'll play really loud.

The pdf also mentions the cabs are constructed of OSB, i'm assuming something a bit different than the OSB we see used for economy sheathing in construction.

250 is probably a bargain, i'd think just the drivers alone would easily be worth that.

[Audio_by_Goodwill]

My 9864-8A is made of OSB. The chips/strands are a bit smaller than what I've seen at the big box home centers, but larger than particle board.

OSB is supposed to be close to plywood in rigidity..... I'd use it over MDF. In fact, I probably will use it, if I ever get in a position where I can build some cabinets.

[whitebroncoii]

The 9880-8A is loaded with a Gauss 18" woofer and yes, it was designed for loud music. The woofer is the famous dual spider design that was supposed to stay linear thoughout its travel. A very nice, hard hitting, high power subwoofer.

This reminds me of a call that I got when I was working for Altec. The guy wanted info on subwoofers and which one might fit his needs. He wanted them for a disco in the Caribbean.

BTW: Disco only died in the US. It still lives in the rest of the world, even today.

I asked him if he wanted to go low or go loud. He said definitely low. I explained that for his needs there wasn't much material down low and he was giving up 5dB in efficiency. He insisted, so I recommended the 8154 system. He bought four systems.

He called me back about a three months later and wanted to know how to get louder. I told him he would need more speakers and more power amps. No budget for all of that. I suggested replacing the 3154 woofers with 3156 woofers. He ordered four.

About a month goes by and he called again. He was blown away by the difference using 3156 woofers! The response speed and "hit" are amazing with the 3156 in an appropriate cab. I have four 8 cu.ft. cabs (model 8254) loaded with 3156 woofers and they are great.

[RonSSS]

It's a Gauss woofer? Not an Altec? Doesn't make it much of an Altec in my book. Had altec sold out at that point?

I have a pair of 8184's with real Altec 18's in them and they are wonderful!
I really don't need these then. but am always a sucker for a good deal.

He also has a pair of duplexes in cabs, the duplexes with the sort of clover leaf horn in the middle. I think those were 950?

And he has 2 horns that look like 511 with drivers, but they look bigger, the photo is very fuzzy...another cell phone photo no doubt.

I have asked the seller to give more details.

BTW...has anyone captured all this data?

Altec Lansing Professional Audio - Vintage Speakers

Awesome source and I think I remember Todd saying it could go away.

Ron

[Todd W. White]

I believe I have saved all of it...

[oface1]

I have made copies of it to store locally when I am not online.


-chris

[whitebroncoii]

It's a Gauss woofer? Not an Altec? Doesn't make it much of an Altec in my book. Had altec sold out at that point?

I have a pair of 8184's with real Altec 18's in them and they are wonderful!
I really don't need these then. but am always a sucker for a good deal.

He also has a pair of duplexes in cabs, the duplexes with the sort of clover leaf horn in the middle. I think those were 950?

And he has 2 horns that look like 511 with drivers, but they look bigger, the photo is very fuzzy...another cell phone photo no doubt.

I have asked the seller to give more details.

BTW...has anyone captured all this data?

Altec Lansing Professional Audio - Vintage Speakers

Awesome source and I think I remember Todd saying it could go away.

Ron

Gauss was distributed by Altec Lansing for a short period during the Mark IV Audio era and the 3184 was down on power for the application. The clover leaf Duplex speakers were the 925-8A / 925-8B (12") and the 950-8A / 950-8B (15"). The "8A" models used a shared magnet and the Altec 909 HF driver. The "8B" models were built using all EV parts with the HF screwed on the back (sorta like a 604). Big 511 horns are usually either a 311-60 or 311-90.

Gary

[oface1]

Gauss was distributed by Altec Lansing for a short period during the Mark IV Audio era and the 3184 was down on power for the application. The clover leaf Duplex speakers were the 925-8A / 925-8B (12") and the 950-8A / 950-8B (15"). The "8A" models used a shared magnet and the Altec 909 HF driver. The "8B" models were built using all EV parts with the HF screwed on the back (sorta like a 604). Big 511 horns are usually either a 311-60 or 311-90.

Gary

Thanks for the info about the 950's.... I saw some on a Craig's add a time ago. Should have posted my question about them then....


The guy was asking ~$100 a pair for them. They looked (in pics) to be in good condition.....



-chris

[bfish]

...BTW: Disco only died in the US. It still lives in the rest of the world, even today...

That explains a lot... now I understand why so many nations are PO'd at the U.S.