I measured my new monitors tonight: 3 RCF NX-10SMA (Mon 1-3) and 2 RCF NX-12SMA (Mon 4-5), both active COAX designs with 1.7KHz crossover points. There is a
related post here: http://forums.prosoundweb.com/index.php/topic,144820.0.html with some additional measurements.
Speaker details are here:
http://www.rcf.it/products/pro-speaker-systems/nx-series/nx-10-sma and here
http://www.rcf.it/products/pro-speaker-systems/nx-series/nx-12-smaMeasurement Details: Monitors placed on ground outdoors. No wind but a fair amount of AC noise (ambient noise is shown in related post, its fairly far down from the pink noise level). Smaart 7, Audix TM-1 mic at ear height, ART USB DualPre. I forgot to apply the TM-1 mic correction but the largest error in the calibration file is 0.3db at 220Hz, negligible for the purpose of this test.
Mon History: Mon 1-3 are new, Mon 1 has about 10 hours of use, 2&3 have 90 minutes of use. Mon 4 & 5 were broken in by a guitarist and are of unknown age, but I was told they are different ages, one might be fairly new.
Measurement Goal: Measure consistency between monitors, determine if any EQ needs to be applied (by model, or individual monitor).
Preliminary Analysis: The response of these speakers is seems fairly flat, and fairly consistent within models. Some of the speakers have a bit of a hump around 2K that might need a little taming, and the 10s might need the high end rolled off a little (I can hear the High end difference between the 10s and 12s). ...Yet the 2K bump that can also make the vocals punch through...
Questions: Anyone think special processing is needed, other than EQ to taste? If I do any processing, I'm restricted to 4 bands of parametrics on an Aux bus on an 01V96. I use an Alesis DEQ830 8-channel 31-band EQ for ringing...
Is there a different filter or db zoom display that would be more meaningful? Below I display 1/12 octave filters, which is I think may be more detail than needed.