Meridian Unplugged - Powered by MrTechGuy.co.uk Forums Discussion Meridian - Systems G61R issue with the centre channel + sub channel measurements in REW.

I have a similar problem with no audio, but it is an HD621+ G61R issue and is with the centre channel + sub channel measurements in REW.

I was wondering if anyone has solved the issue that only L, R and sub measurements can be made with speakers set all small, and never centre and sub individually. I have a 3.4 system.

I've used FlexASIO and Java and even though in Windows all channels are available only L,R alone or together with/without subs work.

This question should probably be its own thread, but you can do it in one of two ways...

1. Latest version of REW supports multichannel sweeps. Check settings/preferences doesn't have stereo only ticked. Then you can choose your channel, assuming your PC is directly connected via HDMI to an HDMI input on your HD621.
2. If you are using any other input, you can "force" centre sweeps by using prologic modes, but you will be limited to whatever the bass management speaker sizes are set to. Similarly for sub measurements you can turn off other speakers and do a sweep on L+R with just the sub on to measure that.

Dumb question, but how do you get a G61 to be a 3.4 system?

It is not difficult to get a 3.4 system.

I have L, C and R, and on the G61R sub out have a MiniDSP 2x4HD connected to 4 subs. I use Trifield for my 3 identical L, C and R speakers (Quad ESL-63s).

My original question is now irrelevant, as in REW I have found it is not necessary to get a centre channel SPL response.