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Peerless 830987 3" Full Range Woofer
Do you have - (1) a separate data sheet with on and off axis response curves, (2) Is there a Peerless driver the same size but with different cone material, (3) any with Ferro-fluid, (4) What is essentially the same driver but with a different magnet?
Unfortunately we do not have any other similar size Peerless models with different magnets, cone materials or ferrofluid. You can see a spec sheet for this model below which includes off axis response.www.parts-express.com/pedocs/specs/264-1054-peerless-830987-specifications.pdf
Date published: 2015-05-22
is 54Hz a realistic if tuning frequency for this speaker? It says 54 if in a .22 box with a port...but is that just math numbers or actual realistic tuning number? It's for a desktop application, but would like it sound as nice as possible. TLine?
A tuning frequency that low is not very practical. The lowest I would recommend tuning this driver to would be around 80 Hz, which would require a smaller volume.
Date published: 2014-11-12
So another question I had was I was looking to see how to make a TLine box for this sub and I ended up with a box 7.25 x 5.75 x 9" with a 1.5 x 4.75 port folded over 4 lengths so about 36" of port. Is this going to sound better than just a .22 ported box?
"Better" is a relative term. A TL will have similar extension capabilities as a vented box, but require more volume to get there. If done properly the transients of a TL will be "better" than a vented box (IE less group delay) but at the usable frequencies of this driver, we are only talking milliseconds. For practical purposes a standard vented box would make more sense.
Date published: 2014-11-26
We build AGV mobile robots and are looking for a 3" 4-6 ohms shielded speaker. We usually by 50 ps at a time.Please get with our purchasing agent Ginger. Her email email@example.com
Please contact our sales and customer service for available stock, price and shipping options. firstname.lastname@example.org or 800-338-0531 x2.
Date published: 2014-11-10
I am putting this in a box with a LP2020+ and a tweeter. Subtracting the volume of the tweeter and amp, the box needs to be .245 if it's ported. Can I use a passive radiator to size the box down in volume, or do I need a make a 1/2"x5x5.5 square port?
Using a port will provide a more practical tuning frequency for this application, the passive radiator will tune too low.
Date published: 2014-11-11
can i put two of these inside 7(W)x4(H)x3(D), sealed? Otherwise what is the closest dimension to it? Or if a passive radiator assisted is used, wat wud be recommended, the enclosure dimension and PR mass and size.
Assuming those are internal dimensions, sealed will provide an F3 of about 100 Hz. Adding a passive will not change anything, the Peerless passive we offer in the same volume will tune the box to about 99 Hz.
Date published: 2014-09-23