I am creating a two way active studio monitor for a school project and I am yet to decide on the drivers that I am going to use. I want to be able to produce 90dB at 1 metre between 200 and 20kHz with as flat frequency response as possible. I am only looking to spend about £100 max on the woofer and tweeter combined.
I have downloaded the ACD software that was recommended to me by a member of the forums and have gone through the tutorial which has helped my understanding a lot. However I am unsure as to how to apply the software to drivers that I am interested in using.
Is there a website where I can download FRD Measurement Files for drivers, or do I need to create my own FRD files?
Thanks.
I have downloaded the ACD software that was recommended to me by a member of the forums and have gone through the tutorial which has helped my understanding a lot. However I am unsure as to how to apply the software to drivers that I am interested in using.
Is there a website where I can download FRD Measurement Files for drivers, or do I need to create my own FRD files?
Thanks.
ACD is written under the assumption that the user will be developing the crossover using measurements taken on the actual drive units used, mounted in the box, for the system in question. While it is possible to fake this using certain techniques there is no substitute for actual measurements on the system, on-axis and at several angles off axis.
If you need help putting together a measurement system, just ask. Post what equipment you have now (what computer, what soundcard or line-in/line-out, microphone if you have one, etc.). There are a few inexpensive options that will get you up and running.
I get the idea that you have not previously done any measurements on loudspeakers. This is a topic into and of itself. ACD is like other systems, where garbage in means garbage out, so getting good measurements is important. I wrote a tutorial on using ARTA to make gated impulse measurements which you can find on the web.
Feel free to post questions and people will chime in with advice and the usual mix of opinions and so on. Have fun!
If you need help putting together a measurement system, just ask. Post what equipment you have now (what computer, what soundcard or line-in/line-out, microphone if you have one, etc.). There are a few inexpensive options that will get you up and running.
I get the idea that you have not previously done any measurements on loudspeakers. This is a topic into and of itself. ACD is like other systems, where garbage in means garbage out, so getting good measurements is important. I wrote a tutorial on using ARTA to make gated impulse measurements which you can find on the web.
Feel free to post questions and people will chime in with advice and the usual mix of opinions and so on. Have fun!
Thanks for the help.
Would this mean I would have to mount the drivers in to the box and takes the measurements, and then the crossover unit is designed based on the results of this?
I have only ever measured the frequency response of a loudspeaker. What other measurements would I need, or are there too many to mention?
Would this mean I would have to mount the drivers in to the box and takes the measurements, and then the crossover unit is designed based on the results of this?
I have only ever measured the frequency response of a loudspeaker. What other measurements would I need, or are there too many to mention?
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