strange looking crossovers

Ofer

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Mar 15, 2021
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153
My AV System  
Preamp, Processor or Receiver
miniDSP 4x10hd
Main Amp
Emotiva XPR200 midrange amp
Additional Amp
Crest audio 2001A bass amp
Other Amp
Rotel RA930ax twitter amp
Computer Audio
Sony Bravia android TV
DAC
miniDSP 4*10HD
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Andromeda MkII
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Sony bravia 65XF9005
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Deezer HiFi
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Marantz original 5E CD
So finally got AL XO. Haven't even connected it to my main system. Just playing around creating speaker setups. Yet every setup I create has this strange dip in the 4-5khz region, marked by black circle. Any ideas why is this happening?

strange high frequency anomalys.jpg
 

2234rew

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Nov 24, 2020
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242
Yes, even putting aside hearing ability, this issue is below the resolution of any analogue audio electronics on the planet.
 

Ofer

Member
Thread Starter
Joined
Mar 15, 2021
Messages
153
My AV System  
Preamp, Processor or Receiver
miniDSP 4x10hd
Main Amp
Emotiva XPR200 midrange amp
Additional Amp
Crest audio 2001A bass amp
Other Amp
Rotel RA930ax twitter amp
Computer Audio
Sony Bravia android TV
DAC
miniDSP 4*10HD
Front Speakers
Andromeda MkII
Screen
Sony bravia 65XF9005
Streaming Subscriptions
Deezer HiFi
Other Equipment
Marantz original 5E CD
Agreed, it is just anywhere AL xover plots are posted they never look like this, so I wonder.
 

BenToronto

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May 22, 2017
Messages
94
Can't say as I understand it much, but maybe that's a sweep of no-signal. Odd to see the sub-sub-sonic trace??? Odd to see any human-designed system running -200 dB S/N - how can that be? Not measurable?

The stuff at 4-5kHz just an artefact of internal circuitry. In such additive systems, when one component is even just -12 dB, it isn't adding much that's audible to the sound.

B.
 

juicehifi

Audiolense
Staff member
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Feb 5, 2018
Messages
506
The stuff at 4-5 kHz is an artifact from the window used on the xo. And it will be different when the filters are made and when crossovers and filters are combinde. But the stop-band will be plenty low enough still.
 
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