- Nov 6, 2019
My AV System
- Preamp, Processor or Receiver
- Denon AVC-X8500H Dolby Stereo CP200 Sony SDDS
- Main Amp
- Behringer inuke3000 NX3000/D Alesis RA300 20kw
- Additional Amp
- Behringer EPQ304 x7
- Universal / Blu-ray / CD Player
- Panasonic 900, 9000 THX / Pioneer DVD / Toshiba
- Front Speakers
- JBL control 12SR modifed five screen
- Center Channel Speaker
- JBL control 12SR
- Surround Speakers
- JBL 8330 mkII x6 / with Below Surround x12
- Surround Back Speakers
- JBL 8330 mkII x3
- Front Height Speakers
- JBL control 5 Height 1 front with Height 2 middle
- Rear Height Speakers
- JBL control 5 Height 3
- JBL 4645 x2 JBL 4782 TCB x2
- Other Speakers or Equipment
- Dolby CP200 500 65 55 45 Sony SDDS Dolby A / SR
- Video Display Device
- LG OLED 65" / viewsonic 727 4k pixel shift
- Transpraent screen 120"
- Other Equipment
- Lucasfilm Ltd THX Sound System 3417 professional
After doing some REW frequency sweeps as I enjoy frequencies .
I have opened and closed certain doors in the flat and it seems to me they act like a band-pass filters at reducing some low frequncy wavelengths or increasing other frequency wavelengths.
The top first graph is with the door open in the room.
Second graph is with door closed wavelength shallows a bit.
Third graphs is with door open and another door closed at the bedroom where the wavelength on the lower lows has swallowed down a bit further.
The low frequencies are like zigzagging around the home to "find a way" to ether increase a bit or decrease yes some nulls are encountered as well.