I need help identifying my new horns

**edharbur** · February 26th, 2013, 05:37 PM

I purchased these horns last weekend. Nice guy, and seemed to know his Altec stuff far better than I - not hard. I bought the 2 horns, 2 adapters and 2 288-8k drivers. The horns were represented as 1005s. My plan is to use them to make A5s out of my A7s.

I've never seen a real live 1005, but to my untrained eye, these looked right. When I got home, I realized that they were 37" wide, not approximately the 30" that fits nicely on top of an 825/828 cabinet. I can't find dimensions for Altec horns anywhere.

Here are some pictures:

DSC_0427.jpg DSC_0428.jpg DSC_0429.jpg DSC_0432.jpg

What did I buy? Are these 1003s? Are they suitable for use in my cabinet shop - 3,250 sf, 10' ceilings, all reflective surfaces, very poor speaker placement.

Help!

**Alien_Shore** · February 26th, 2013, 05:50 PM

Check out this reference - it should help you:

Multicellular Horns

**Old Guy** · February 26th, 2013, 05:57 PM

thinking maybe really old 1004b but not sure

wish I knew where my older lit was.

30158 looks a lot like a part number for the throat

Do they have 1.4 Altec throats?

**edharbur** · February 26th, 2013, 06:09 PM

Thanks, Alien - that's the info I was looking for. Right you are Old Guy - they appear to be 1004bs. The question becomes are they suitable for my use? The specs say that they are both 40 x 100 degree, one crossing over at 400 hz and one at 500.

**Old Guy** · February 26th, 2013, 07:03 PM

With all the hard surfaces I'd think about hanging, and angle down, so the sound from the speakers does not point at a flat wall. I'd put the LF up by the ceiling and the horns underneath.