The review on this website is a brief overview and summary of the objective performance of this speaker. It is not intended to be a deep dive. Moreso, this is information for those who prefer “just the facts” and prefer to have the data without the filler.
Read moreThe review on this website is a brief overview and summary of the objective performance of this speaker. It is not intended to be a deep dive. Moreso, this is information for those who prefer “just the facts” and prefer to have the data without the filler.
Read moreThe review on this website is a brief overview and summary of the objective performance of this speaker. It is not intended to be a deep dive. Moreso, this is information for those who prefer “just the facts” and prefer to have the data without the filler.
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The Purifi Audio PTT4.0W04 is a long linear throw 4-inch midwoofer which costs about $580/pair USD. It has so much science baked in to its design that it makes my mind hurt so rather than try to pretend I understand it all, I’ll just redirect you toward the manufacturer’s website or you can view and purchase them from Madisound if you’d like.
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Per Madisound:
SB Ceramic cones consist of an aluminum/ceramic dual layer cone. Ceramic provides a very hard and robust surface with improved sonic properties and cosmetic appearance.
The ScanSpeak Illuminator 7" Paper Cone Woofer 18WU/4741T-00 features the following:
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The Revel Performa F226Be is a “compact” floorstanding 3-way loudspeaker from Revel’s PerformaBe lineup featuring (2) 6.5-inch midwoofers, a single 5.25-inch midrange and a 1-inch Beryllium dome tweeter on a waveguide. This speaker retails for $3500 USD/each ($7k USD/pair).
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This speaker comes to us from the mind of fellow DIY’r and speaker builder, Rick Craig of Selah Audio. You can find the manufacturer’s information here but I have provided some snippets below:
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Before I dive in I want to note that this is a dual voice coil (DVC) woofer with dual 3.2 Ohm coil configurable in parallel or in series. I have tested and provided the T/S parameters with the coils wired in series and also in parallel. However, based on a poll I created on my Facebook page where I asked if people prefer to run a DVC woofer at a higher or lower load where over 80% of the replies indicated “higher load”, I only tested the woofer at the higher series load of 6.4-ohm nominal for frequency response. However, the linear excursion limits are practically the same between the two sets (the Bl, Cms, and Le curves do not change) and, thus, I only provide the results of the series testing.
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Before I dive in I want to note that this is a dual voice coil (DVC) woofer with dual 2 Ohm coil configurable in parallel or in series. I have tested and provided the T/S parameters with the coils wired in series and also in parallel. However, based on a poll I created on my Facebook page where I asked if people prefer to run a DVC woofer at a higher or lower load where over 80% of the replies indicated “higher load”, I only tested the woofer at the higher series load of 4-ohm nominal for frequency response. However, the linear excursion limits are practically the same between the two sets (the Bl, Cms, and Le curves do not change) and, thus, I only provide the results of the series testing.
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