Re: 60 Degree DIY Mid Hi
Update - I have done a bit more work with settings. It’s difficult with Smaart / Systune to determine good settings; you really need something better, and a controlled environment.
To determine the best time alignment and correct gain between the LF and MF you need to be about 4m from the box. At this distance reflections start to impact on the measurement if your window time is long enough for the low frequency measurement.
I have used this point, (4m back and 3 to 4m high) to set the gain and time alignment, but something a little closer to adjust the PEQ, typically about 2m. Even then I’m not 100% happy with what I was measuring … so you still need to use your ears.
Last week I did a quick comparison out against a large world class, state of the art Commercial Cinema 4-Way THX system (no X curve applied) which is manufactured locally and sold worldwide including into the USA.
After a little bit of tweaking with the help of the factories engineers, the DIY’s compared very well, although my subs did not go quite as low. As a result it’s planned to do a shootout as part of a local AES meeting in front of all the golden ears. Wish me luck
