Line Array based on Peerless 830392

Cacophonix · 5th April 2007, 05:28 PM

I'm tempted by these drivers on madisound for just $13.00

Peerless 5.25" Poly cone woofer
8 ohm
Stamped steel frame with rubber surround
Very smooth response to 5kHz.
F3 of 60Hz in 0.25 cubic foot vented, 1.5" diameter vent by 4" long

Flange diameter 5.75"
Cut out diameter 4.5"
Depth 2.25"

Re 6.1 ohm
Le 1.0 mH
Fs 61.4 Hz
Qms 2.82
Qes 0.45
Qts 0.39
Mms 10.1 g
Cms 0.67 mm/N
Sd 91 cm2
Vas 7.6 liters
BL 7.3 N/A
26mm VC diameter
88.4dB sensitivity 2.83V@1m

Anyone tried building a line array using these?

tomcat9 · 6th April 2007, 02:36 PM

Hi,
I have not used these speakers, but I think they would do a very good job in a line array. The price is right. What tweeters have you thought about using? I have a pair of unfinished line arrays that I would like to sell. I used Neo8's for the tweeter line.

Cacophonix · 6th April 2007, 03:03 PM

What woofers have u used?

And how much are you asking for the planars? I sent you an email as well ....

tomcat9 · 6th April 2007, 07:27 PM

I did not get your email. My address is tuhlt <at> netscape.net

The woofers are Audax AP170MO. This is a low cost 6 inch woofer. Try sending another email using my address above. Not sure why I did not get the one earlier.

tom

bjorno · 8th April 2007, 01:54 PM

Quote:

Anyone tried building a line array using these?

The rec. when using 5.75” drivers is to crossover not higher than about 1.2 kHz.
See the picture when an array of ideal point sources is summed.

I vote for the additional use of 2-3” drivers in a row before crossing over to a tweeter line if not wide band drivers like Neo8 are considered for the highs.

b

1(2)

Zarathu · 18th April 2007, 11:58 PM

I know of someone who didn't pay attention to matching the crossover with the tweeter and the midrange, and ended up with a real void in the 1600 to 2200 range where neither speaker covered it adequately.

My personal recommendation is for a real 3-way when doing line arrays. The woofers are 12 or 15's and handle 150-200hz and below, the midranges are 3-4 inchers and handle the frequencies between 200 and 2700 with no break for any kind of crossing, since this is the range of frequencies that the human ear is most sensitive to, and a tweeter system, either domes or ribbons handles it above 2700.

Additionally the 3-4 inch midwoofers will have a much quicker transient response usually.

Just my opinion though.

Zarathu
calipso@epix.net

5th April 2007, 05:28 PM	#1
Cacophonix diyAudio Member Join Date: Apr 2003 Location: plano, TX	Line Array based on Peerless 830392 I'm tempted by these drivers on madisound for just $13.00 Peerless 5.25" Poly cone woofer 8 ohm Stamped steel frame with rubber surround Very smooth response to 5kHz. F3 of 60Hz in 0.25 cubic foot vented, 1.5" diameter vent by 4" long Flange diameter 5.75" Cut out diameter 4.5" Depth 2.25" Re 6.1 ohm Le 1.0 mH Fs 61.4 Hz Qms 2.82 Qes 0.45 Qts 0.39 Mms 10.1 g Cms 0.67 mm/N Sd 91 cm2 Vas 7.6 liters BL 7.3 N/A 26mm VC diameter 88.4dB sensitivity 2.83V@1m Anyone tried building a line array using these?

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6th April 2007, 03:03 PM	#3
Cacophonix diyAudio Member Join Date: Apr 2003 Location: plano, TX	What woofers have u used? And how much are you asking for the planars? I sent you an email as well ....

6th April 2007, 07:27 PM	#4
tomcat9 diyAudio Member Join Date: Jan 2004 Location: Texas	I did not get your email. My address is tuhlt <at> netscape.net The woofers are Audax AP170MO. This is a low cost 6 inch woofer. Try sending another email using my address above. Not sure why I did not get the one earlier. tom

18th April 2007, 11:58 PM	#6
Zarathu diyAudio Member Join Date: Apr 2005 Location: Planet System Vega(I'm a Vegan)	I know of someone who didn't pay attention to matching the crossover with the tweeter and the midrange, and ended up with a real void in the 1600 to 2200 range where neither speaker covered it adequately. My personal recommendation is for a real 3-way when doing line arrays. The woofers are 12 or 15's and handle 150-200hz and below, the midranges are 3-4 inchers and handle the frequencies between 200 and 2700 with no break for any kind of crossing, since this is the range of frequencies that the human ear is most sensitive to, and a tweeter system, either domes or ribbons handles it above 2700. Additionally the 3-4 inch midwoofers will have a much quicker transient response usually. Just my opinion though. Zarathu calipso@epix.net

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