Time alignment (Oris Horns)

by GC, Friday, October 26, 2007, 06:45 (6021 days ago) @ Bert

Hi Stefan,

My question this time is about time alignment: How are the horns
supposed to be positioned to optimaly integrate with the bass. Are the
voice coils supposed to be "in line" or should I place the horns so

that

the horn mouth is in line with the bass bin baffle? Why? Please explain
this to a curious lawyer :confused: .

Not just time-alignment is important but also the filtering used if you
are heading that way. What the best compromise will be depends on the
filtering where things can be optimal in phase and timing but needing many
components to make that work...

Sometimes using less components is more... Remember, everything in this
speaker world is a compromise..

With the filters used for your system (none on the AER and approximately
18dB on the bass) gives the best result when the horn mouth is in line
with the baffle of the bass system and the bass or the Oris horns
connected in the opposite phase.

It is not just about coils physical aligning, also about delay and phase
turns created when filtering. Especially filtering the bass and the
"slower" reaction of the bass driver give a certain delay compared to the
AER.

I hope this helps?

Bert

You are absolutely right in this Bert. When a certain design does not allowe absolute phase alignement, then a puzzle with the parameters can lead to pretty good sound.

But there is only one solution for perfection talking 100% phase- and time alignment, as there can only *be* one. (Ahh...there are actually 7 ways to do it, but only one of them contains minimum phase networks and holds the less amount of components. The rest will show filters of fantastic complexities..Pfew)

Alternatively: Stick to full range drivers, point source, not supported with bass systems or backloads.

Or buy a SWING system.

GC

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