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In the Forum: Horn-Loaded Speakers
In the Thread: Good midbass is complicated, if not unobtainable.
Post Subject: This was well discussed.Posted by Romy the Cat on: 9/10/2013
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 noviygera wrote:
For me personally, midbass is the most important frequency range when it comes to sound reproduction. I believe you will be on the right track to focus on this range because so often it is overlooked and treated with superficial attention, as a "it's there somewhere" to be in the sound not too loud or boomy or obtrusive. But if we focus on this range and listen to it only, we will see that most of the emotion of sound resides there and around it, that is the tonality that makes the sound system special or vague.
I have been thinking about this region of sound and what if we start the system build with this step, what are the options? Has anyone done this and what were the observations of comparing different topologies. For example, here I see a few approaches, each specifically focusing on the midbass: 
1. high efficiency: some well made horn around a single specific paper cone driver.2. high efficiency: some well made horn around a compression driver3. low efficiency: array (rectangular) of direct radiators, 6" or smaller drivers, let's say 30 drivers, as a point source4.  low efficiency: wrapped  array  of direct radiators forming a frame around the mid/high section (like a picture frame around a painting)
Has anyone compared the above midbass topologies? 
Gera
Gera, mid and upper bass is one of few elements that distincts high-end from HF-FI. You do a mistake however in my view to attenuate good mid and upper bass to a specific topology wrather then to specific implementation. I have seen interesting mid and upper bass made by horns and not by horns and I do not think that the topology matters. What matters is the head of system owner and his ability to put it all together aming the proper objective. It happens that at this site people mostly deal with horns. I am sure good mid and upper bass migh be made with direct radiators but you need to look somewheres also as I think this site has no constituencies for direct radiators. The paragon of Fane in 4" throat and 125hz horn is quite uniq. It was given as is as many people feel that this is another outcome of many DIY-audio craziness. That is not correct and it requered a lot of practical expireance to understand what it as and why there are very few good topological moves if horn topology was chosen.

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