It's a big one, I admit.Gary_W said:Many thanks for taking the time out to do this. Very interesting reading, and I will come back to it again a few times; it is the kind of thing that fills my head to bursting point if taken in one go
You aren't missing anything. In fact I tuned my dual Ultras to 16 Hz after the test, and I couldn't be happier.Looks like there is no good reason NOT to tune the PB12-Ultra to 16Hz; seems to yeild better group delay down low with very little impact on the SPL. Am I reading this right or missing something obvious? Please advise, as I may dig out that piece of foam that came with my sub
Gary
Of course I was worried too, but I tested it before the test and I found out that those 2x 40 m RCA-cables didn't have any effect at all. The level of the signal and the frequency response (10 Hz - 20 kHz) was identical with 1 meter cables.Nimby said:Ilkka
Congratulations on your excellent work and superb presentation.
Would those very long cables (a necessity to run the tests out of doors) have any effect on your results?
Since I was the one playing with the computer, I was always more than 30 meters away from the subs when they were playing the tunes. And we didn't have time to "listen" to them (if you are meaning music etc.). I can say that it needed over 90 dB before I even started to hear them being so far away. It is also much easier to hear the rattles and noises from the subwoofers, since the room isn't making/masking any noises.I haven't tried listening to any of my subwoofers out of doors...is there much of a subjective difference to listening "normally" indoors?
Didn't you read the summary Bob?bob1 said:Very well put together , the little bk as a good response in room one ,what a difference a room makes.
Do you plan to test other subwoofers in the future?
Yes they did. Add 6 dB to the Monolith numbers (duals) and you got a very good performer on your hands. And it stays still under 1500 EUR.recruit said:Nice work Ikka and some interesting reading the BK's do manage some good results.
I'm not sure what you are meaning? If you look at the numbers, you can see that the Monolith was for example only a maximum of 2-3 dB behind the SVS 20-39PC+ 20 Hz (dB12.2) at all frequencies. Not a bad performer, I think?Malice said:The Monolith appeared to have a flat FR over a wide range, but the max SPL @ < 10% THD shows it was suffering a bit under high SPL's over its range. Considering it's price, it should sell well based on the results.
I think that trusting on subjective opinions is always harder and more difficult than trusting on objective. But again you can't tell the whole truth by just looking at the numbers.Although listening and trusting one's own ears is ideal, sometimes you have to trust to others opinions and just ass important, objective testslike this. Well done!! I'm impressed with your dedication to the pursuit of the truth, well, your version of it!!
I'm getting a one PB10 after a month. I'm hoping that the winter isn't on yet, so that I can test it immediately.Ian J said:No doubt different people would like to see a whole variety of different subs tested but as we pay much higher prices for our sub bass pleasures here in UK than the Americans do, I wouldn't mind seeing the subs that stand out for value - the SVS PB-10 and the BK Monolith tested side by side as whilst they both look similar and are similarily priced it's what goes on under the skin that's important.
Ilkka R said:I'm not sure what you are meaning? If you look at the numbers, you can see that the Monolith was for example only a maximum of 2-3 dB behind the SVS 20-39PC+ 20 Hz (dB12.2) at all frequencies. Not a bad performer, I think?
That is true. But it isn't a fair match, since the Ultra retails at around 1600 EUR (when they were still available at here). If you want the most "bang for the /£", get the PB12-Plus/2 for about 1600 EUR from L-Sound. It will easily beat all of these when using its native 25 Hz tune (25 Hz and upwards).Malice said:Not a bad performer I agree. I was just looking at the relative max spl @ 20Hz between the Monolith and the Ultra. (not a fair comparison to be honest, different price range). At 20 Hz < 10% the BK was 6 db behind the SVS. It just supports the opinions expressed here and elsewhere that the SVS subs go both low and clean.
No ,i had a quick look through over breakfast.Ilkka R said:Didn't you read the summary Bob?
I very much doubt whether many people will have the necessary technical expertise to interprete the results correctly and I make no claims to be technically minded but I am wondering just how much benefit I would get by upgrading my PC 20-39 PC Plus to the PB-12 Ultra as according to my reading of the stats it isn't that much better.
AngelEyes said:Subwoofers are a bit like women, impossible to understand completely but as long as the bumps (on the graphs) are in the right places you should be ok.