FRF of the CD from my speaker, how can it be???

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Hi again :)

i have some big doubts. I just measured at anecoich room the frequency response of the compression driver + the horn. Due to, i was having some problems when i did the response at full range for this speaker (100-1200Hz with two 12MI100(beyma) and1200< with CD755ND(Beyma)+TD590Horn)

the problem is, i get way much peaks at high frequency.

I have a filter (FD212 Beyma) as XOVER(1,2KHz) plus an additional configuation that the filter allows of -7,5 db attenuation and a -3,5db @ 3KHz.

well my question is , is this measurement normal?????? I used a pink noise, filtered in the rang of 1Khz< .

Which can be the problem of this high peaks???
An externally hosted image should be here but it was not working when we last tested it.


An externally hosted image should be here but it was not working when we last tested it.


how can this be?? can it be faulty the CD?? or is it normal??


thx a lot for your help.
 
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