So long as it's actually a 1st order acoustic crossover and not just some misguided implementation that's only 1st order electrical.
No, not yet. I have only seen commercial speakers with L-pads for tweeter and/or for the mid.
But polarity switch? Why.
Tweeter polarity is either correct, when transition from mid to tweeter is seamless, or incorrect, when there is dip in the crossover frequency due to cancellation.
There is a thread when this was discussed and fr response plots with correct and incorrect tweeter polarity were shown.
Why would you want to listen with incorrect polarity?
The reason was hinted at above. For a first-order acoustic crossover there isn't necessarily a correct (or incorrect) polarity for a tweeter.
If non-coincident drivers the lobe would move. This might be the objective of the OP.
Dave.
Why do you want to destroy frequency response?
If you want to find the correct phase use Rew+Umik 1, very easy!
If you want to find the correct phase use Rew+Umik 1, very easy!
That's beside the point.
The OP asked a simple question which seemed to fly over the head of most responders here. I don't know the reason he has in mind. Maybe he will elaborate when he returns.
Dave.
You seem to be flying above most Forum members 🙄
In fact it was fully answered in posts #6 and #8 , others offered useful "how to" without delving in its weirdness.
No, actually it was fully answered in post #3.
I seem to be flying a decent course, but most everybody else has their autopilot set to the wrong waypoint.
A polarity reversal on a true, first-order acoustic crossover might have a specific objective for the OP.
Let me say it again........when he returns maybe he will elaborate.
Dave.
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I recommend a three position switch having two sections or "poles". Such as a DP3T rotary switch, or a toggle switch with ON-OFF-ON action. This guarantees break before make operation, which is safer for both the amplifier and the tweeter. My beloved Keithley 225 current source (built 1976) has this feature -- I call it POS, UNCONNECTED, NEG -- which has prevented disaster on several occasions.
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Break before make or whatever doesn't matter if the switch is placed after the crossover network. The cap will protect the amp from any potential short.
I can't fully agree with this, it can still not sound right.
Some are concerned that phase runs at different rates (one is steeper).. however the problem extends to the lobing pattern created as well. The interaction when designing is complex.
I have no idea what you are talking about.
There are only two ways to connect the tweeter, the correct way or wrong way.
Theoretically, on axis, one setting would lead to a flat phase response and the other to all-pass filter behaviour. The lobing is probably more important, though.
