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In the Forum: Horn-Loaded Speakers
In the Thread: Another time aligned 5-way horn project
Post Subject: DBH is difficultPosted by anthony on: 8/14/2015
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 Murataltuev wrote:
Ok, I give up...I'll keep TH separated.DBA concept is interesting and I don't understand why it is not common in Home Cinema or studio installations.In my case I'll consider to make double TH - one pair in front and position at 1/3 and 2/3 of wall width, and another pair at back.But I'm still thinking that TH is capable to produce bass more precisely because of very small diaphragm excursion in compare with any other type of sub.

Personally, I am probably going to do a line array like Romy's using the same drivers but twice as many...so eight each side.  I have the drivers.  This configuration should give somewhere around 109dB @ 20Hz from 15w in room with cone movement of about +-3.5mm.  That is still low excursion, and they are excellent drivers.  But first I am going to make some test boxes and get them in room to see how the bass works in my space.  Fingers crossed I can keep them in a time aligned position with the horns, but I am not holding my breath.

DBA is difficult to setup because you need drivers at both ends of the room and time to measure things to get the delayed cancellation correct.  Plus you need a symmetrical shaped room.  So lots of drivers to mount on the walls at specific spots with amplification and DSP to drive them all.  Not easy!  Plus as far as I am aware it is a relatively recent idea.

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