And Now For Something REALLY BIG

[buzzforb]

If i go with 1", it will be 10hk or rk as they go lower. Have to watch resonant frequwncies

[tinitus]

my HF100 is the old one
from memory its more like the HF102, a bit round and rolled off
the new revised model should be able to go lower
but maybe the low ressonance peak is lowest possible xo point
but I dont know

hmm, right now its a 6.8uf cap looking into 15ohm series resitor, then some inductors and resitors in paralel, and a very small series inductor looking into a small resistor
its probably not crossed very low, maybe just below 2khz, like maybe 1.7khz, but I really dont know

that said, I did put a lot of work into making the throat transistion smooth as possible
CD exit angle ? I dont see there could be much to do about it

[buzzforb]

I just want to hear the polymer diaphram. It sounds like it has the potential to maintain clarity, but be smoother like BE diaphram is said to do.

[Pano]

I doubt this is a driver you'd want to cross at 1K. It might "work", but would it sound good? I don't think it would.

[buzzforb]

Pano, what about the hf 144? This was what i was leaning to.

[ingvar ahlberg]

I prefer to x-over a bit higher, think it sounds better when the lf unit covers the fundamentals in voices, but that´s just an opinion.

If You can accept 1.7kHz or up a bit then the STH tractrix horn is really nice, very well built and cheap.

[buzzforb]

Is that the 104?

[ingvar ahlberg]

No, it´s the old version of HF100.

This is the 104

[JRKO]

HAHAHAHAHA!! The local rep for Auto-Tech is a 20 min drive from me. Am trying to arrange demo. Will take pix if allowed and feedback next week

[JRKO]

Seeing him monday!

heres some pix I found to wet the appetite

To me the first pic of the E-JMLC-300 looks like a triffid that might swallow you whole if you talk while its playing! Im liking the JMLC-400.........