do YoU prefer a ‘TL’ with the driver @ 1/3 or a parallel set of ‘TL’s that connect to each other @ 3:1 ?
depending on the driver and EQ placed on the 3/4 resonance, the latter often looks pretty good? Though it’s weird how it sims after the 3/4 resonance unless i offset the driver entry to split the short side resonator. It’s like there an ‘ideal’ pattern in using these in higher order versions that becomes more and more obvious as you use it ? I used to just plave the drivers at the closed end, but moving them down to 1/3 or 1/2 REALLY helps! get a nice smooth (~flat) respomse🤓
Lately, im using the same drivers over and over in a variety of qw layouts and compare/contrast. But I often chase stupid to witness it and wood is not getting less expensive
depending on the driver and EQ placed on the 3/4 resonance, the latter often looks pretty good? Though it’s weird how it sims after the 3/4 resonance unless i offset the driver entry to split the short side resonator. It’s like there an ‘ideal’ pattern in using these in higher order versions that becomes more and more obvious as you use it ? I used to just plave the drivers at the closed end, but moving them down to 1/3 or 1/2 REALLY helps! get a nice smooth (~flat) respomse🤓
Lately, im using the same drivers over and over in a variety of qw layouts and compare/contrast. But I often chase stupid to witness it and wood is not getting less expensive
So where’s the driver entry point if using ‘2/5’? instead of 1/3 ? Or how long of a resonator if added in parallel?
?? Never did any serious measurements, just some good sets of ears and the 2/5 offset was audibly smoother than 1/3, so find it hard to believe it sims so poorly in HR since decades later using MJK's MathCad sheets proved what we heard.
yikes!? Short and severely tapered 4:1 ratio vs long and slightly tapered 2:1 (same ‘volume’ to show apples to apples?)
the 3/4 of the long version disappears
300cm fb mass loaded below 28.8hz
100 (3/4) 86.4hz
60(5/4) 144 hz
42.86cm (7/4)
33.33cm(9/4) 259.2
27.27(11/4)
23.07(15/4)432
the 3/4 of the long version disappears
300cm fb mass loaded below 28.8hz
100 (3/4) 86.4hz
60(5/4) 144 hz
42.86cm (7/4)
33.33cm(9/4) 259.2
27.27(11/4)
23.07(15/4)432
Attachments
Last edited:
Weird how suppressing the 3/4 then kills all the resonances /3, /9,/15,/21…. Which are just 1,3,5,7 (again) x the 3/4.(pic with red arrows above)
weird🤓. I never looked at this until I started stacking higher order qw resonators and driver offset entries with a purpose. I think Driver entry gets half wave length credit to the freq it affects ? I dunno how to explain/describe I that though (??)
weird🤓. I never looked at this until I started stacking higher order qw resonators and driver offset entries with a purpose. I think Driver entry gets half wave length credit to the freq it affects ? I dunno how to explain/describe I that though (??)
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