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83 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Sat, 21 January 2023 16:34 «»
By: Wayne Parham
Re: Multisubs for pi7
I love basshorns, but they're just so big. Their size often makes it inconvenient to use hornsubs for multisubs.
The main benefit that hornsubs offer is maximum acoustic energy. But we really don't need maximum acoustic energy to make it ear-shatter...
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Forum: Pi Speakers «»
Posted on: Tue, 06 December 2022 14:25 «»
By: Wayne Parham
Re: 1pi Measurements
You'll probably need to get the microphone out. Speakers like these have great on-axis response, and the overall average balance is pretty good too. But move the microphone off-axis even just a little bit and the response changes, especially in the ver...
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Forum: Pi Speakers «»
Posted on: Tue, 23 August 2022 14:29 «»
By: Wayne Parham
Re: My 3π adventure
I agree with you generally about almost everything you said except the part about time alignment. This is impossible in the modal region.
Outdoors, you want sound sources acoustically close together - within 1/4λ of each other - and the electrical si...
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Forum: Pi Speakers «»
Posted on: Wed, 23 December 2020 19:19 «»
By: ooheadsoo
Flanking subs with multi-sub optimizer, and other questions
I intend to mate my mains (ported, tuned around 50hz) with an old Hsu Research vtf-2 (ported, tuned around 25hz). For use as flanking subs, I currently have two Dayton RSS265HF-8 woofers on each side, each pair of woofers in a Linkwitz specified W-frame c...
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Forum: Pi Speakers «»
Posted on: Mon, 16 December 2019 10:07 «»
By: mathiasb
Re: 4PI Plans Request
High-pass at 50Hz fourth-order is fine.
As for the delay, please remember that what we're doing with flanking subs actually requires some delay. The modal range is caused by a multitude of phase interactions from reflected signals. There are mul...
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Forum: Pi Speakers «»
Posted on: Mon, 16 December 2019 09:48 «»
By: Wayne Parham
Re: 4PI Plans Request
High-pass at 50Hz fourth-order is fine.
As for the delay, please remember that what we're doing with flanking subs actually requires some delay. The modal range is caused by a multitude of phase interactions from reflected signals. There are mul...
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Forum: Speaker «»
Posted on: Wed, 10 August 2016 15:01 «»
By: Wayne Parham
Re: Mono "flanking sub"
When we talk about phase anomalies (time domain) or when we talk about peaks and dips in the amplitude response (frequency domain), we're essentially talking about flip sides of the same coin. I've always been more focused on the frequency domain becaus...
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Forum: Speaker «»
Posted on: Sun, 17 July 2016 11:16 «»
By: Wayne Parham
Re: Mono "flanking sub"
Delay is equivalent to making the distance further in one dimension. So naturally, this changes the frequency where self-interference cancellation happens.
The thing is, our goal is not achieved by this. We need to create dense interference by incre...
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Forum: Speaker «»
Posted on: Sun, 17 July 2016 09:31 «»
By: Wayne Parham
Re: Mono "flanking sub"
Physical position of midrange and tweeter drivers is sometimes offset to get the summing right. It's kind of similar, except in this case, the goal is to match the phase of each subsystem.
In multisub setups - both flanking and distributed - we're ac...
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Forum: Speaker «»
Posted on: Mon, 30 November 2015 10:31 «»
By: Wayne Parham
Re: Mono "flanking sub"
Never apologize for asking questions here. That's what AudioRoundTable.com is for!
The thing is, flanking subs are a specialized type of multi-sub. Each flanking subwoofer is supposed to be placed two to three feet below, beside and behind a main sp...
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