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Multi-Way Conventional loudspeakers with crossovers

Peerless driver opinion for low profile speakers
Peerless driver opinion for low profile speakers
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Old 3rd February 2009, 06:56 PM   #1
renfrey is offline renfrey  Canada
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Join Date: Feb 2005
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Default Peerless driver opinion for low profile speakers

So I am going to get a new panel tv, which gives me the opportunity to build some new speakers to go with it for surround.

The only speakers I am concerning myself with at this time is the L+C+R speakers.

I want to build these to profile the TV on the wall, so they will be wall mount, slim, and no deeper then the tv plus a bracket. So that would be in the area of 5-6" deep, about 27" high, and as narrow as I can get it.

My first thought was to use some 5" drivers I had sitting around. (I have 6). So I was wondering what peoples opinions would be of the drivers and if they would be decent for what I am trying to accomplish.

The woofers are Peerless 831974. The detailed specs are here.

I was thinking of an MTM configuration and using Morel tweeters I have as well (MDT30). As for the crossover point and design....I am not too sure of that. I don't have too much experience with building crossovers.

It may also be good to note that I will have a subwoofer supporting the low end in this system.

What are your opinions?

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Old 3rd February 2009, 10:12 PM   #2
PeteMcK is offline PeteMcK
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Join Date: Feb 2002
Location: Western Sydney
A rough sim indicates you'd need about 15L for 2 units if you go ported; you'd probably be ok with 10-12 L sealed if you have a sub.
The spec given on your link don't give Re, and the freq response curve looks too smoothed.

Polyprop cones tend to drop like a stone once they've reached their high freq limit, looks like around 2Khz on the graph; you'd need to ensure that your tweeter can get down that low
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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Old 4th February 2009, 02:15 PM   #3
renfrey is offline renfrey  Canada
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Join Date: Feb 2005
Location: here
I am going to try to find my original specs from peerless. I noticed that the ones online don't include xmax either.

I've also been looking around for other decent drivers that I could use (like on zaphaudio).

They don't make too much mention of smaller HiVi drivers, any thoughts on HiVi's? I was also looking at the W14RC2508 5.5" silverflutes, but I am not sure if I could squeeze them into a small enough cabinet, unless I scrapped the MTM design for the L+R speakers?
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