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495 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Tue, 03 September 2019 16:02 «»
By: Wayne Parham
Re: Definimax 4012HO - End of Life
I'm not ready to make an announcement, but I can give a status update.
I have a pair of Eminence Delta Pro 12A woofers and a pair of B&C 12PLB100 woofers here to test with.
Both look like they will work very well from modeling and from free-air...
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Forum: Speaker «»
Posted on: Tue, 18 June 2019 14:49 «»
By: Wayne Parham
Re: WinISD 0.44
That's approximately the same size box I run. It sounds great in that size box. I tune mine a little below that, which as you said, gives the system an overdamped alignment. I like that because thermal shifts don't push towards underdamping, but rathe...
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Forum: Pi Speakers «»
Posted on: Fri, 17 May 2019 09:33 «»
By: Wayne Parham
Re: Three Pi performance at low volumes
It's not an issue if you incorporate flanking subs, which also solve the problem of self-interference from nearest boundaries and room modes at the higher end of the modal region.
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Forum: Room Acoustics «»
Posted on: Sun, 21 April 2019 10:41 «»
By: Wayne Parham
Re: Improving acoustics in living room
The "most valuable change" is the one that provides the most benefit. That wasn't meant as an impertinent reply, but rather to highlight the fact that different environments have different problems.
The most common problems indoors are rela...
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Forum: Pi Speakers «»
Posted on: Tue, 12 March 2019 14:43 «»
By: Wayne Parham
Re: 3 Pi plans
That sure is a nice looking pair of three π speakers! I like the stands they're on too. They'd be perfect for use with flanking subs.
The way to implement flanking subs is to use the left and right preamp outputs as input signals for the left and ri...
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Forum: Pi Speakers «»
Posted on: Fri, 01 March 2019 10:11 «»
By: Wayne Parham
Re: 3 Pi plans
Flanking subs are really just "helper woofers" except that they are generally tuned to provide deep extension. That way you get both benefits - Blending in the 75Hz to 150Hz range gives SBIR smoothing and extension below that gives more deep b...
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Forum: Room Acoustics «»
Posted on: Thu, 28 February 2019 09:13 «»
By: Wayne Parham
Re: Making your audio sound better
Check out the links below and then do further study by searching terms like "room modes," "multisubs" and "flanking subs." Might also study the concept of the "reverberent field" and the difference between the &qu...
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Forum: Pi Speakers «»
Posted on: Thu, 28 February 2019 08:59 «»
By: Wayne Parham
Re: 3 Pi plans
Those look stunning!
To improve the upper midbass and lower midrange, you have two options that come to mind right away:
1. Upgrade the midwoofer to the Definimax 4012HO. It's a drop-in swap, with only a single capacitor change on the crossover. ...
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Forum: Room Acoustics «»
Posted on: Thu, 20 December 2018 09:36 «»
By: Wayne Parham
Re: Sound in basement
Yes, the hard surfaces will cause problems - Room modes will be very strong. So at any position in the room, certain bass notes will be very strong and others will be very weak. The tonal balance will change in different places in the room - What's wea...
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Forum: Pi Speakers «»
Posted on: Fri, 30 November 2018 09:40 «»
By: Wayne Parham
Re: Amp for 4pi speakers
The flanking subs did exactly what I would have expected, which was to reduce 15dB ripple in the 100-200Hz region to 6dB ripple. That's a "textbook case" of what to expect. Flanking subs can smooth the range a little lower than 100Hz - usua...
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