Message Boards

Lack of high freq in 8030. Or it is faulty?

wonderer, modified 10 Years ago.

Lack of high freq in 8030. Or it is faulty?

Youngling Posts: 4 Join Date: 10/28/09 Recent Posts
Hi, I have a pair of 8030 speakers. Recently I have noticed some lack of a high freq in my speakers. Treble tilt is off and I use the monitors in vertical position. I use RME Fireface 400 for audio interface and compare sounding with Beyerdynamic DT990 Pro headphones. I try to change output channels for monitors but result is the same. After that I search here for something about this and find topic from another user with freq analysis for 8030. Is here download/file.php?id=32. He had another problem — difference in freqs between 2 speakers. But I can see — high freq is not fill all space to 20 kHz. Actual freq response for 8030 is 16 kHz or I'm wrong? If I change my 8030 to 8040 can I has wider range of the top frequencies?
Thank you in advance.
andreas, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Padawan Posts: 61 Join Date: 4/8/09 Recent Posts
If you can hear above 16KHz, you have really good ears.
wonderer, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Youngling Posts: 4 Join Date: 10/28/09 Recent Posts
If you can hear above 16KHz, you have really good ears.

:lol:
I dont mean that I want (or can) to hear above 16 KHz, but I can hear lack of HiFreq meanwhile.
My main question — do 8040 have wider range of the high frequencies than 8030?
andreas, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Padawan Posts: 61 Join Date: 4/8/09 Recent Posts
If you compare the manuals of both 8030 and 8040 in the download area, you will notice the manuals have a frequency plot in the last pages of the PDF files.

http://www.genelec.com/documents/opmans ... _8050a.pdf
http://www.genelec.com/documents/opmans/OM8030a.pdf

If you compare 8030 and 8040, they have similar extension to 20kHz. The main difference is the woofer and both cut over at around 3kHz to the 19mm tweeter. Both should be used best up to 2m max. hearing distance, larger only depending on room and goals to be achieved. So the 8040 will not bring you much more treble....
wonderer, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Youngling Posts: 4 Join Date: 10/28/09 Recent Posts
Thank you for your explanation. Maybe this is the problem in my room acoustic.
ilkka-rissanen, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hello Wonderer,

How did you figure out that the speakers are missing the high freq? Is the sound clearly darker compared to the headphones mentioned or are some of the frequencies totally missing, for example if you try to play sine waves?

Both 8030A and 8040A will go at least up to 20 kHz, as shown in the frequency response graphs linked by Andreas.
ilkka-rissanen, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
After that I search here for something about this and find topic from another user with freq analysis for 8030. Is here download/file.php?id=32. He had another problem — difference in freqs between 2 speakers. But I can see — high freq is not fill all space to 20 kHz.

Hi,

I thought it would be beneficial to clear up one thing. The sharp drop above 16 kHz visible in those measurements is because of the signal used. The specific pink noise mp3 doesn't have any frequencies above 16 kHz. We will change the mp3 to a new version which will have content up to ~22 kHz (44.1 kHz sampling frequency).
wonderer, modified 10 Years ago.

Re: Lack of high freq in 8030. Or it is faulty?

Youngling Posts: 4 Join Date: 10/28/09 Recent Posts
Today I play some sine waves and understand that my problem is a subjective perception. Also is it quite understandable difference between speakers and headphones. :roll:
Thank you Ilkka, I missed info about that record made from mp3. :oops: