No, you will get the diameter of the driver as baffle! (Cause everything around is absorbing -> like it's not there) This influences a lot.If you put the driver on a pillow on the floor and measure 1m directly above it, you will get a reasonable infinite baffle measurement.
So you need to take the bothersome step to cut a hole and get some tape at least ;-) or do it properly like @Bmsluite does now with a measurement baffle.
The software sometimes ***** up. I would estimate it freezes on average 2 times the day when I do a crossover development. You have to check if the parameters you set in the main window are saved, sometimes the input jumps to the old setting. I can not choose where to save files and can not load as in every other program on earth. Simply file loading doesn't work as it should, tested on 4 different computers over many versions. You can't save an EQ. You can't save and write a complete setup in the DSP, it takes very long to set up when you also use the EQ settings.@IamJF And what do you mean by "not as stable as it should be"? Please don't mince your words!
And here we go again...why are the D/A converters "the limiting factor"? Enquiring minds would like to know further specific details.
That's not enough to ditch the system cause it's a bunch of smaller things but it's annoying.
I wrote that regularly here - amp modules have a dynamic range of about 125dB(A) but with D/A converter it goes down to 114/116dB(A) (the 3rd HF channel has lower noise). With analog input even a little less.
That's still very good but a pity when you know the quality of the amp. But there are very little HiFi/Homecinema Systems out there which can achieve 115dB(A) S/N and in most use cases (living room and >2m distance) that's easy enough. But not in mine, I can still hear a little sizzle in a 3" midrange dome in 1m distance in a silent studio room.
Alright I'm back!
Calibrated spl at 2.83V coming out of the amplifier
I know its tilted but it was flush mounted for the measurement
Impulse is pretty awesome looking
|
Off axis is what I would have expected
I think I'm looking more towards a 500hz or higher cross with the distortion.
Calibrated spl at 2.83V coming out of the amplifier
I know its tilted but it was flush mounted for the measurement
Impulse is pretty awesome looking
|
Off axis is what I would have expected
I think I'm looking more towards a 500hz or higher cross with the distortion.
Yeah, over 10% THD at 100Hz at only 63dB and near 1% at 500Hz at 85 dB/1m is not too encouraging for a lower crossover point.I think I'm looking more towards a 500hz or higher cross with the distortion.
Response looks good 500-5kHz.
Is the SPL calibrated too? 85dBSpl sensitivity is pretty low for a dome midrange but going that low for a 2" is great! You have about 6dB fall off at the crossover frequency, 500Hz seem to be very usable.
But do a few measurements at higher level, you need to check how it behaves with more serious load.
But for the price ... a great driver!
But do a few measurements at higher level, you need to check how it behaves with more serious load.
But for the price ... a great driver!
Literally says "spl calibrated" in the post....Is the SPL calibrated too
Yup, I notice that and I'm OK with it. Mid range's don't need super high sensitivity. They end up high with the other drivers crossing into them. Whatever I cross it with I will be taking normalized spl measurements of so that I get a better baseline accross the drivers spectrum85dBSpl
I don't even listen to music this loud so I'm not going to do that. I don't really care what it sounds like at 105db. Mid domes are never going to be SPL kings.But do a few measurements at higher level, you need to check how it behaves with more serious load.
Mid domes are THE SPL kings!Mid domes are never going to be SPL kings.
I have measurements of the Bliesmas at 114dBSpl where they have THD around 1-2%. The 2 12" already showed significant power compression but not the 3". That's a big part of these main studio monitor sound and the reason why 3" domes hold their place in this application - this or horn speakers for main monitoring.
But not every use case needs this dynamics so it's great to have good sounding smaller variants.
When you want to know what your midrange is able to do without distortion of your transients and peaks - raise the level 😎
I didn't consider the transients. Good point. When I get another chance at work I'll run it high and see what happens.When you want to know what your midrange is able to do without distortion of your transients and peaks - raise the level
- Home
- Loudspeakers
- Multi-Way
- The dome midrange thread