Best approach to room correction with Genelec

[dbc1987]

This is a question aimed that those who use or are familiar with room correction/dsp with non-SAM/GLM monitors.



In this instance, we assume the speakers are placed as optimally as possible the room they’re in (domestic setting).



In regards to the best possible outcome with Genelec speakers that are not SAM/GLM compatible, which approach would yield the best results:



A) Using REW to measure the in-room response and curtailing bass prominence (for instance up to 300Hz) with dip switches (repeated measurements until most obvious peaks are reduced) and then applying EQ (from REW measurements) to make the final small adjustments?



Or



B) Keep the speakers with all dip switches disengaged, and use REW to calculate the optimal EQ for the room correction?



Thanks

 

[Mort]

Can you share the monitors you are using? Genelec generally says run SAM first and get them as flat as possible then use 3rd party tools. I know that was true of diracart and glm.

 

[dbc1987]

I have 8040B monitors, so what Genelec refer to as analogue (non-SAM) models.

 

[Mort]

I misunderstood. I think 'B'. Afaik Dip switches are for when you don't have a PEQ filter, a crude modifier.

 

[dbc1987]

Thanks, Mort. So it seems the dip switches act as shelf filters in a rather imprecise way (compared to a measured DSP EQ correction via REW).

If for instance, the bass frequencies due to speaker being in an unavoidable corner location are approximately 12dB over target, would removing that excess with EQ be preferable to the built-in dip switches/analogue shelf filters?

 

[Keith_W]

Thanks, Mort. So it seems the dip switches act as shelf filters in a rather imprecise way (compared to a measured DSP EQ correction via REW).

If for instance, the bass frequencies due to speaker being in an unavoidable corner location are approximately 12dB over target, would removing that excess with EQ be preferable to the built-in dip switches/analogue shelf filters?

You need to try to get your FR as flat as possible BEFORE you start the DSP process. If you need to use a shelf filter, to get it flat, then use it.

 

[dbc1987]

You need to try to get your FR as flat as possible BEFORE you start the DSP process. If you need to use a shelf filter, to get it flat, then use it.

Thanks Keith. That was my approach to begin with and has yielded excellent results. I simply wanted to check if it was the best solution out of the two approaches I’d thought about.

 

[Waxx]

Best is to use a external dsp to correct room modes, like many studio's do it today. (MiniDSP with) Dirac, Trinitov, Sonarworks, Accurate, ... are used in many studio's that don't use Genelec monitors with GLM.. Some have dedicated hardware, but some are just software running on a computer.

 

[staticV3]

The DIP switches do nothing that cannot also be accomplished with an additional PEQ filter.

Use them if you want, but it is not at all necessary or beneficial compared to an all-digital approach.

 

[goofytwoshoes]

Thanks Keith. That was my approach to begin with and has yielded excellent results. I simply wanted to check if it was the best solution out of the two approaches I’d thought about.

Please update as you measure and/or and make changes. I have a pair of 8040B too, and I'm learning about measuring and EQing. I have a Umik-1 mic, also OmniMic V2 and can EQ effectively in Roon. My 8040B pair sit beside a pair of 8330A monitors with GLM on identical stands. The plan is to measure with both Umik-1 and OmniMic and compare results to 8330A pair calibrated with GLM, to help me learn about the process of translating measurements to EQ settings.