GM, thankyou for the modelling details, I can't seem to upload a .txt file, (I'm using version 54.6) but I could find and enter the values manually, I noticed that you had the Sd of one Driver set instead of two, and changing the Sd value makes the SPL curve even more peaky, I also noticed that the driver is at the start of the line, not down it. How do I change that value? I've also seen that the software can handle two drivers at two locations, but I can't seem to see how that's done either...
You're welcome! Worked fine just now in 54.6. Don't know how I managed it, but sent the wrong sim originally, which is just your sim's HR data from post #13 with corrected driver specs.
Hmm, my understanding is 'we' need 'your' 2p, 2s driver configuration for dual isobaric, so HR will 'do the math' based on a single driver to get the correct isobaric pair of drivers summed as one for simming purposes, so for building, this point will be centered between the dual isobaric drivers.
Hmm, my understanding is 'we' need 'your' 2p, 2s driver configuration for dual isobaric, so HR will 'do the math' based on a single driver to get the correct isobaric pair of drivers summed as one for simming purposes, so for building, this point will be centered between the dual isobaric drivers.
I was playing with the numbers and I've realized that with some threaded inserts I could make a matching top that would turn the whole box into a sealed unit with a Qtc of 0.49 an interesting addition to make it more versatile.
Is there anything that can be done about the 100hz dip? Could we maybe (somehow) add another horn tuned to 100hz?
I was thinking about using GR-Researches No Rez for the initial stuffing, I can run it down the first length, and I can experiment with the rest, from what I'm reading, efforts to improve the bass through contouring the bend usually result in undesirable frequencies also being amplified, but seeing as I'm only using this as a bass chamber I won't have that issue, is this right?
Is there anything that can be done about the 100hz dip? Could we maybe (somehow) add another horn tuned to 100hz?
I was thinking about using GR-Researches No Rez for the initial stuffing, I can run it down the first length, and I can experiment with the rest, from what I'm reading, efforts to improve the bass through contouring the bend usually result in undesirable frequencies also being amplified, but seeing as I'm only using this as a bass chamber I won't have that issue, is this right?
Attachments
Currently, each pair will be wired in series and powered by each channel of a Sabaj A8, two, used as monoblocks.
I'm not really sure how to put that into HR but I'm not really seeing a huge difference in SPL output when I change those settings, I've been meaning to attach my latest txt file on it to make sure I'm doing it right, I found that moving the woofers a bit lower (95cm) than the initial calculator suggested (78cm) helped a bit. I tried to use the Wizard to make a multiple entry horn but it got too complicated very quickly.
😢
The dimensions of your speaker are about 2 metres high and 35 cm wide? You have a resonating and reflecting front of 2 metres x 35 cm. The lateral resonances and resonance radiating surfaces on top of that. THE cause of a flat, uncontoured sound. The simplest test: wrap the speakers in blankets - excluding the drivers.
Different drivers made of different materials sound different. The ear perceives this.
Many other problems I could mention.
The dimensions of your speaker are about 2 metres high and 35 cm wide? You have a resonating and reflecting front of 2 metres x 35 cm. The lateral resonances and resonance radiating surfaces on top of that. THE cause of a flat, uncontoured sound. The simplest test: wrap the speakers in blankets - excluding the drivers.
Different drivers made of different materials sound different. The ear perceives this.
Many other problems I could mention.
