Looks like we have an Altec convert.....

[mah]

It looks top-heavy. Consider the possibility of a child pulling it over, upon himself. This was a problem with some large screen TVs.

I wish you well in this venture.

[analog addict]

Appreciate the advice. This was just something we threw together yesterday afternoon for testing. Any finished version would have a substantial plinth designed for stabilization. But it's definitely heaver up top than the other speaker type....

[Panomaniac]

Here is the listening position graph of the Open Baffles. The MTM Inspire and the prototype crossover on the 604 open baffle. I think that the peak at the bottom is a room mode.

[Alien_Shore]

Good Gosh Pano....welcome back!
That was a lengthy sabbatical you took.

[Panomaniac]

Hey thanks! Rest assured that I spent much of that sabbatical listening to my mighty, wonderful Altecs.

[Altec Best]

Hey thanks! Rest assured that I spent much of that sabbatical listening to my mighty, wonderful Altecs.

As we all have ! Pano has there been any updates to that HolmImpulse ? Haven't used it in awhile. That's a nice looking graph.. Very flat response.

[kipduff]

Analog Adict or others:

My 604-8Ks and GPA XOs are arriving today Fedex! They have been re-coned by GPA for previous owner. Though I plan to eventually build a proper box (thinking 606)- for now, I want to get them up and running quick and dirty in my small room. I like the idea of off the floor and vertical- did this work out? Dimensions? Can anyone give me dimensions of known decent OB setup for the 604s?

Also, where can I find a frequency response testing and graphing program like the one shown on your laptop? I want to measure parameters to see how my 604s compare to parameters listed at GPA.

Thanks so much, Kip.........