Recent content by brunohydra

Thanks for your reply. I am planning to resume this project, I always wanted to measure TS parameters but in Brazil is so difficult to find information and there's no equipment available to buy for measurement. Now I got a audio interface and I saw that is possible to use this to measure. I...

Thank you for reply. It's good to know that is a good measurement. I just don't understand why the T&S parameters is so different of the speaker's manual.

Hello guys. Just to update. I've bought a 100ohm 1% resistor and made my calibration with 12ohm 1% resistor (I will test with some value closer to 4ohm) and now the response is quite better. Looking to this amplitude I think that is so low, could you please help me to understand if is necessary...

Hello everyone! I'm doing some tests with REW to get T&S parameters and I had a question about a accuracy of my measure. I think that my audio interface doesn't have the necessary gain to get a perfect curve because if I use -12 dBFS I get a curve with a lot of peaks and when I use 0 dBFS the...

Thank you for all. I'll search for an amplifier and a audio interface with better quality.

Could you please show me how do you made the connection and how do you did with the gain of the amplifier?

If I use a audio interface the signal is higher than a USB soundcard right? I was looking for this audio Interface on Aliexpress. Will it solve my gain problem to measure the speaker? It costs more than a amplifier, but I can use for measure another things too.

I have a TDA2003 amplifier it's a 10W analog amplifier. This problem is solved, now my question is: How can I make the connection of the amplifier in the circuit?

Hello Jschwender. Is this amplifier is good for this situation? I assume I will need to use a lower output volume, cause this 5W can destroy my line in. Thinkin about the new circuit, it Is correct?

Hello. A few weeks ago I had a problem with the impedance measure, I did a forum thread and the problem was solved. Now, I did a measure of my speaker and I compared with the manufacture datasheet and the parameters are much different. Manufacture parameters: Measured parameters: TS Parameters...

Hello John. I`m so happy, I did the changes you said and now it works! Thank you so much! *Image 1 is a 6 inches speaker and image 2 is a 5 inch speaker.

Hello John, sorry for my late.

Hello, i`m Bruno from Brazil. Here we don`t have access easily to DATS V3 and is so expensive to import, it`s my hobbie and I can`t expense all that money to study only. I saw a video about measuring TS parameters with REW (), i made the cable and bought a USB soundcard like this: I did...