R2904/700000 measurements file......

[aries]

hi,
does somebody measured the R2904/700000 scan-speak tw ??

i need the measurements file in frd or txt format.........also other formats are good.

please help me!

regards.

[Bison]

Hello
If you can give me an email address i will send you the measurement files that you want.
You can use these measurements to simulate but you really need to measure the tweeter in the box that you are planning to use. Diffraction often occurs in the crossover region if you are using a smaller baffle plane. The Impedance curve is measured with LMS-system (LinearX) and SPL curves are captured from the datasheet. I have measured the tweeters in real world but since my baffle is somewhat special i think you are better off with the measurements from the datasheet. The quality on Scan-Speak drivers are incredible good. I did a measurment on the D2904-710000 in a IEC baffle and compared it to the datasheet and the difference where extremely small, about +/- 0.2 dB.

[aries]

well!

bye

[aries]

hi bison,
do you recieved my pm ?

regards
mauro

[Bison]

Hey! Mauro.
I have read your PM and because this is a forum and the information can be useful to other people I will answer your request here. I am glad you got the measurement files i sent you. Now your asking me to send you my SPL measurements done in a very special baffle-plane. As I stated before Scan-Speaks own measurements are really good and you are way better off with those than any measurement done in a baffle that is not exactly like yours. If you don't have the possibility to measure the drivers in your construction before making the final crossover you would be wasting your money. I see that you have made these requests in other forums and i also saw that Engelholm Audio gave one SPL and one Impedance measurement to you. The SPL measurement have a value second to none and you are way better off using the datasheet as a guideline. Would you mind sharing your construction plan? Do you have or will you have the ability to measure these drivers when your are designing the crossover?
The more information you share about your project the more chance there are for you to get the help you need. I will not send you more measurement files cause i believe they would be useless and confusing.
GOOD LUCK!

[aries]

ok,
you are right,i'll use the scan-speak meas.,to simulate.