It would be interesting to see what another doubling would do.
It's pretty well known labhorns were designed for use in a bank of 8, maybe dipping down to 6.... I'm short with 4.
What's it been? 15 years? But as I recall, the labhorn was a "full horn" with 12 boxes in free space or with 6 boxes on the ground. So, 4 boxes is a little short but the models showed only slight depreciation in response flatness compared to 6 boxes. The other thing that comes into play, imo, is the non-linear nature of human hearing. The 6 db difference in level between 2 boxes and 4 boxes at close to full tilt at 50 feet, I think, marks a magical change in the overall experience. I'm curious about your subjective opinions of your 2 different sub models. I assume they get used for different types of gigs so comparison it's always easy?
That's the biggest reason for hauling the subs into the driveway and measuring them ........to see how well the labs and OS's might work together. I'm thinking they will work damn well together, looking at their natural phase traces.....
Did you change the delay time on Smaart when measuring the different subs?In my opinion, the best way to see how well they "play together" is to measure one (doesn't matter which one).Put them next to each other with a mic in the center-at least 15' away.Don't change the delay or have it on automatic follow, turn the first one off, (after you save a trace) then turn the other one on, adjust the level (up or down it doesn't matter) until it basically has the same SPL over most of the response.Save that trace.Now turn them both on. If you get around 6dB increase in level, you know they will play well together.
But all 4 of the delay times fell within 0.25ms...which surprised me given how much trouble we know the delay finder can have at low freq...
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