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Peerless 830878 3-1/2" Passive Radiator
Can I use this radiator with two ND91-4 3 1/2" in an enclosed box of 10" x 2.75" x 4.25"? Thanks!
This should work well. A single radiator will tune the enclosure to about 66 Hz with no weight added.
Date published: 2014-09-03
I'm building a small portable speaker with 4 dayton CE46P-4 1-7/8" Paper Full Range Drivers (Fs = 150 Hz). Would two of these passive radiators help to extend the bass of the 4 full range drivers? Volume enclosure needed and are tweeters necessary?
The passive will create a tuning frequency too low for four of these drivers, around 50 Hz. This will cause a higher F3 than you would be able to get in a standard vented enclosure. I would recommend going vented, 0.08 cubic feet total for all four drivers with a 1" diameter, 1-3/4" long port for a tuning frequency of 100 Hz.
Date published: 2014-08-18
I'm building a small portable speaker with four dayton CE46P-4 1-7/8" Paper Full Range Drivers (Fs = 150 Hz). Would one of these passive radiators help to extend the bass of the 4 full range drivers? Also what would be the min. volume for my enclosure?
The passive will help bring the F3 down to about 115 Hz in 0.084 cubic feet with no weight added.
Date published: 2014-09-12
I am planning to build boxes using 4 Tectonic Elements HIBM65C20F. How many of these would I need, and what size box? Should I step up to a larger passive like an 8 inch? What feq would it be tuned to? and also information using 2 Tectonic BMR's
Four drivers and four passives will work well together in about .8 cubic feet. With no weight added, you will have an F3 of about 70 Hz.
Date published: 2014-04-09
Can I use these to extend/increase low frequency output of a full-range 6x9 in a small, sealed enclosure? Would multiples improve lower frequency response vs. just one, such as to supplement 60-80hz range?
I would not recommend a passive this small to be used with a 6x9. Something like our 8" Dayton would be a better choice although I cannot model the box volume or tuning frequency without driver specs.
Date published: 2014-03-18
How do i tune this passive radiator ?
Weight is to be added to the back of the cone or dustcap by gluing washers or other small weights to it.
Date published: 2014-02-12