Bookshelf Speaker Design Question - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 5 Old 05-17-2019, 03:55 PM - Thread Starter
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Bookshelf Speaker Design Question

What advantage/disadvantage do speakers with the woofer on top and the tweeter on the bottom have over standard speakers with the tweeter at the top and the woofer below (or off to the side)? I only ask because I have seen a trend going towards tweeters on bottom and wondered if there is any sonic differences that is actually discernable.

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post #2 of 5 Old 05-17-2019, 04:34 PM
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The idea is to get the tweeter at ear height. There should be no sonic difference but it depends on your setup and how you are stand mounting the speakers. How far off the floor or desk may affect the first reflection from the tweeter.


For what it's worth, Floyd Toole has his Revel Salon2's inverted, the speakers are mounted upside down!
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post #3 of 5 Old 05-17-2019, 04:42 PM
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It is a matter related to the crossover phase. Crossovers by their nature cannot be perfect; they cannot evenly beam the same energy on and off axis (at least not with real drivers). Supposing the on-axis response is flat there will be dead spots and hot spots above and below the line between the tweeter and the woofer. In such case, the engineers can choose to beam that energy up towards the ceiling or down towards the floor. Sometimes putting the tweeter on the bottom facilitates their choice.

As for tweeters on the side, like in so many center channels, that can be OK for the on-axis listener but anyone sitting to the side may be in a dead spot or hot spot ("Venetian blind" effect). It is better to have a mid below the tweeter. This is often not done for reasons because of shape and then cost.
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post #4 of 5 Old 05-17-2019, 06:03 PM
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I believe some companies claim flipping the woofer and tweeter reduce some reflections nearfield but I'm not sure how accurate that is
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post #5 of 5 Old 05-18-2019, 09:14 AM
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Quote:
Originally Posted by Squirrel! View Post
What advantage/disadvantage do speakers with the woofer on top and the tweeter on the bottom have over standard speakers with the tweeter at the top and the woofer below (or off to the side)? I only ask because I have seen a trend going towards tweeters on bottom and wondered if there is any sonic differences that is actually discernable.
To make you buy taller tippier stands?

Geoff A. J., California
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