Behringer B2030P Studio Monitor Review

[krabapple]

Perhaps Amir can test the proposition that sample to sample loudspeaker variance is important*. He's already measured my 2030P, I can send him a few more. I just have to make sure I don't send him the same one twice...

*It's not an assumption made by the Canadian NRC or other sources of high quality measurements that I've seen.

 

[Bruce Morgen]

Perhaps Amir can test the proposition that sample to sample loudspeaker variance is important*. He's already measured my 2030P, I can send him a few more. I just have to make sure I don't send him the same one twice...

*It's not an assumption made by the Canadian NRC or other sources of high quality measurements that I've seen.

I'm not sure all that effort and shipping expense makes much sense for a discontinued model designed 20 years ago. However, I do have a recently-arrived "spare pair" and Erin is a lot closer to here than Amir is, so sending that pair to him is a possibility assuming he'd be interested in that sort of effort.

 

[komhst]

Behringer B2030p APO EQ Score 96000Hz
April012021-093547

Preamp: -3 dB

Filter 1: ON HPQ Fc 47.2 Hz Gain 0 dB Q 1.35
Filter 2: ON PK Fc 149 Hz Gain -2.75 dB Q 1.56
Filter 3: ON PK Fc 281 Hz Gain -2 dB Q 7.08
Filter 4: ON PK Fc 788 Hz Gain -3.9 dB Q 4.4
Filter 5: ON PK Fc 941 Hz Gain -1.88 dB Q 7.57
Filter 6: ON PK Fc 1481 Hz Gain -1.45 dB Q 5.86
Filter 7: ON PK Fc 1977 Hz Gain -1.22 dB Q 4.15
Filter 8: ON PK Fc 3744 Hz Gain -2.05 dB Q 8.21
Filter 9: ON PK Fc 8204 Hz Gain -2.82 dB Q 1.1[/CODE]

I've been using these speakers for years and I know their sound very well. I have to say that I was surprised when I applied the APO EQ Score. The improvement was so big, I couldn't believe that these speaker could perform so well !!!

 

[Bruce Morgen]

I've been using these speakers for years and I know their sound very well. I have to say that I was surprised when I applied the APO EQ Score. The improvement was so big, I couldn't believe that these speaker could perform so well !!!

That was my experience too, although I used a Dayton Audio DSP-408 rather than EQ software because my B2030Ps are used for my four surround/ambience channels and my main L+R speakers don't need EQ.

 

[dasdoing]

Some time ago, I did MMM measurements of B2030A in 9 different rooms at distances between 2 and 3m. LF switch was at -2dB and HF switch at -4dB.

This was to verify how Moving Mic Measurement gives a good picture of a loudspeaker above certain frequencies.
We can see that above 800Hz, we get a nice similarity between curves with a slope depending on distance and room absorption.
It is slightly different to the measurements and EQ published by Amir, maybe because it is here the activ version of B2030.
Above 800Hz, just 3 parametric EQ should be fine plus other parametrics under 300Hz depending on room and position.

I think this might be one of the most ignored stuff I have allrady seen here. this should be discussed. is there any chance you still have this mdat?

 

[changer]

I could never find any information about the crossover network. Did any owner of the speaker ever have a peak inside and took a picture of the crossover components?

 

[maty]

It is the same that Behringer B2031P but with other values

Inside the B2031P

Here's a look at the Behringer monitor. I'll get some stuff to do modifications and see if it makes a measurable difference. I'm going...

dtmblabber.blogspot.com

 

[changer]

My question does not make sense, as I do not know the woofer raw response. Here is what I want to know:

In his nearfield measurements, @amirm remarked that the woofer resonances mix with the tweeter response. So I asked myself what kind of slope the crossover is. Amir's measurements are neither level adjusted nor with baffle step applied, so we cannot find out from his graph.

Has anyone seen nearfield measurements for the B2030P?

 

[Doenerkunde]

In his nearfield measurements, @amirm remarked that the woofer resonances mix with the tweeter response. So I asked myself what kind of slope the crossover is. Amir's measurements are neither level adjusted nor with baffle step applied, so we cannot find out from his graph.

If the layout is the same as the 2030Ps: 6dB first order highpass for the tweeter with a resistor in parallel to the tweeter to bring its level down. 12dB second order lowpass for the woofer.

Some guys at a german messageboard did a crossover mod for the bigger brother 2031P: http://www.hifi-forum.de/viewthread-267-35-6.html#253

Acoustic slopes of the 2031P with the original crossover from the thread above

Drivers are different size, but the 2031P also suffers from the woofers breakup.

 

[Bruce Morgen]

If anyone wants to come up with a (more or less) definitive crossover mod for the 2030P that solves or effectively compensates for that pesky woofer problem and/or its high end brightness, I've got a spare pair and would be willing to lend one or both of them out to a determined and knowledgeable DIYer.

 

[changer]

Wen't to the shop of a friend today. Here is some eyecandy for you all, crossover included. Measurements will follow some time later.



Crossover:



Drivers:



Port internal construction:



Quick preview at measurements:

 

[changer]

Measurements were taken in 10 degree increments, which is why there is too little data for the crossover region and a dip is exaggerated. Measuring the slit ports was not easy either, but I think the results there are mostly correct. In any case, this is another rough spin.

Apparently, there is a quite some sample to sample difference between this and amir's: