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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: Midbass bloating - the weather is clearing up…Posted by Romy the Cat on: 12/10/2010
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 Romy the Cat wrote:
When I have my old transformer 11:1 then I had the midbass horns calibrated so perfectly that you can tune a large symphonic orchestra by it sound. It was spectacularly stop-on setting with any type of music if played it never was too much or too little – it was perfection that might be taught in the hi-fi schools if they exists. But I did not have power and I went for 9:1. Since then I keep playing the modesty games, constantly rolling off .25dB….
As I said I had some difficulty to get the proper midbass balance. With new transformer seating it looks like I need to roll off midbass but by rolling off midbass I just loosing the midbass volume without losing the negative quality of midbass. This slight midbass bloating that I never had with my old transformer I was trying to get rid by dropping low-pass crossover point. I still was not able to get rid of the midbass very unpleasant swell. I was even blaming the transformer.

The last night I have discovered that my entire problem was with very characteristic midbass sound that new PP2000 produce. All that it took for me juts to switch he PP2000 to run from butter and I had my VERY nice and very clean midbass back. In fact I think that I can add 1dB of THAT midbass and it will be absolutely perfect.  Running the PP2000 from power lines imidetaly injects into midbass some very ugly bloating and midbass sound like it comes from a large empty barrel – very unpleasant. I am kind of pissed that I waste so much time trying to deal with it by crossovering and volumes and did not get the it was a damage from the new PP2000.

What it boils down is that until PurePower fix the new PP2000 I pretty much can’t not finish the system setup. The PP2000 runs from buttery very short time and runs from buttery has no other use then just short testing…

The Cat

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