Reference Theatre LCR Build Crossover
Trust you are keeping well and staying safe.
I am working on Reference LCR build 115dB+... Taking home theatre out of HiFi and into Pro-Audio realm. The center channel is measuring well. I do believe the crossover can be further refined.
Below is the link to dxo file, would love to get your expert opinion on it:
<a href=" removed link " target="true">Crossover_Design_14-DEC-20v11.dxo
Needless to say I am a big fan of your videos. A big thank you for all your efforts in making the videos and sharing with the community.
Let me know what you think of the crossover.
There are a few concerns. The first is the impedance is really low (around 3ohms and as low as 2.5ohms). What do you have push that? You are going to need a really high end amplifier to push that low of impedance, especially at movie levels. I also noticed there are no offsets. Are these manufacturers graphs or your own measurements? Without proper offsets, this crossover won't work as intended.
Thanks for the valuable feedback Toid! Yes I am powering these speakers with a very beefy external Emotiva amplifier so not really concerned on the drop in impedance. Also considering bi-amping the highs and lows separately same amp.
The subject of offset is tricky as you rightfully put it, I have checked both the manufactures graphs and my own measurements (the file shared with you included the manufacturers measurements).
Although, I wanted to get the crossover in the ballpark, build the enclosure and then take measurements - to fine tune the crossover as needed. This will take slightly longer and add to the cost but its ok.
I just wanted to check with you if the 'ballpark' is decent as a starter. I should have the enclosures and components ready in another week or two, will share the graphs.