Rerurn to Romy the Cat's Site


In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s lowest channel.
Post Subject: Trying to address the dilemma with lowest bass.Posted by Romy the Cat on: 3/6/2011
fiogf49gjkf0d

I have with bass not a problem but dilemma. I do not have problematic bass but I have a dilemma how to supplement my current bass with ULF without affecting my current bass. Adding ULF defuses my current bass, renders the bass phasing to be more generic and I will not tolerate it.

So, let analyze the situation and to build some rational behind it. I own 3 major ingredients– I have a great all together bass, I know what I would like to get as a result and I know how to discriminate successes and failures. What I do not know is the reason why my current ULF does not do what I want what I run it at full throttle. So, let analyze the possible reasons for underperformance.

1)      Instrumental problem: wrong ULF transducers wrong amplifiers.

2)      Implementation problem: wrong crossover frequency and slope.

3)      Timing problem, including the horizontal alignment.

Do I have instrumental problem? Possible. I would like to have larger drivers with resonant frequency of 11-12Hz. I do not have such drivers. The 10 drivers that I do have are 20Hz driver and it is very low. My problem is that I do not have just 12 of them but I have 24 of them. If I engage all of them then I will have an equivalent of ten 18” drivers – a LOT of displacement volume at true 20Hz and with very linear excursion. The amplification? I still think about it. Frankly the Instrumental subject might underperform but it is in my estimation is NOT the main reason. The character of the ULF sound and the way how ULF crap over my general bass advise me that I need to look somewhere else.

Implementation problem. As long as I spent time with placing with my ULF crossover it might be not enough time. I still might have wrong everything and the reasons why I was not a able to make the things to work in the way I want to is because the Timing Alignment.

This brings me to the last subject: the arrival aligned and the axis alignment. We so much believe that alignment s not relevant to bass that we do not even think about it. What we are taking about axis alignment we feel that for that low frequency the wavelength is so long that time difference in arrival from right side and left side of woofer is irrelevant. It might be all true but might be THAT is responsible for smearing of my bass by my ULF? I know that in my old place I had absolutely no problem with ULF but in my old place ULD and bass was reproduced by the same channel. What however was also in my place – my bass towers were in time- aligned position and the woofer were looking directly at me – there was no right/left side of driver misalignment.

So, looking for those 3 candidates I think I need to filter out the Timing problem first and if it is a factor then it will crap over other reasons. So, no matter how much my aesthetic inclinations protest me to do it I need to bring my ULF section right outside of Macondo, time-alight them and to see what happens. I think it has to be the burst step…

The Cat

Rerurn to Romy the Cat's Site