Ofer
New Member
- Joined
- Mar 15, 2021
- Messages
- 69
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
First of all, if it sounds good this is all that matters. None the less it is a bit perplexing. On the lower end there are all kinds of room interactions so I am not surprised that your mains don't really role of at 55hz. On the higher xo it is weird. The LFE is supposed to be cut at 150hz but it rolls of much later something like 350hz. The cross-over is defined in a somewhat unconventional way in AL. It is octave and not the usual Linkwitz Riley 12-96db/octave nomenclature. None the less a 2 octave slope should have been much steeper then what we see in the measurments. See below my system. Both the mains and sub are crossed at 30hz, but the mains being ported or for whatever reason behave differently. The sub is cut at 120hz (marked by the cursor). It starts rolling of later at 144hz but that is expected, still not 200hz later. miniDSP provides 5 filters/channel and no TTD AL provides hundreds in no thousands of filters...