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-   -   what peerless driver? (http://www.diyaudio.com/forums/subwoofers/81755-what-peerless-driver.html)

testarossa2k 19th June 2006 06:45 PM

what peerless driver?
 
Hi, I'm planning to build a sub, and I came across two driver from peerless:

Peerless SLS-12
http://www.tymphany.com/datasheet/printview.php?id=38

Peerless CC-260
http://www.tymphany.com/datasheet/printview.php?id=191

From a quick simulation with winISD they both reach low F3. I don't have problem of building big cabinet and neither of space. I'm going to use the sub with a pair of B&W monitor. What driver should I buy? wich has the best quality? from what I see the SLS series is a raplacement of the Classic series, right?

thank you very much

Notax 19th June 2006 10:01 PM

Active or passive?

johngalt47 19th June 2006 10:19 PM

The second driver appears to have been discontinued.

Notax 20th June 2006 08:42 AM

Quote:

Originally posted by johngalt47
The second driver appears to have been discontinued.
So, its better the first.:D

I would go for closed box.

1. Vc=75 L for Qtc=0.71 Fc=49 Hz
2. Vc=95 L for Qtc=0.6 Fc=45 Hz
3. Vc=125 L for Qtc=0.5 Fc=41.5 Hz

Try 2. Vc=95 L, x-over 12dB/oct. at 75-80 Hz.
It could be something about 87-88 dB/1W/1m.
Monitors should be less. If its not, with this unit, you must go on bass-reflex (90-91 dB) or active.

testarossa2k 20th June 2006 12:34 PM

I made some simulation with lspcad lite:
for the first driver 309 liters with 2 reflex tube 10cm diamater 16cm long, so it goes around 21hz

for the second
131 liters reflex tube 10cm diameter and 26cm long and so we're again near 20hz


it's active, I already found a good amplifier with 100w on 8ohm

Quote:

So, its better the first.
why? is there some reason? because dicontinued means just that they no longer produce it, not that the newer version of thing should be necessary better. The big difference, to my "audio rookie" eyes, is that the first is 30cm with paper cone and the second is 24cm with polypropylene cone.

If the quality is equal or very similar naturally I would choose the first because it's bigger, and it's newer and if I'll broke it( but I don't think so) I will get better support.

thank you to all

Notax 20th June 2006 01:37 PM

Quote:

Originally posted by testarossa2k
I made some simulation with lspcad lite:
for the first driver 309 liters with 2 reflex tube 10cm diamater 16cm long, so it goes around 21hz

for the second
131 liters reflex tube 10cm diameter and 26cm long and so we're again near 20hz



thank you to all

Eternal story about simulations. If you do it, you will blue it.:D

Did you see anywhere/anytime 310 L bass-reflex box with 30 cm bass?

If you go with BR: Vb=110L, Fb=28.5-29.5 Hz, Dt=100 mm, Lt=160-190mm. Don"t ask how I calculate this.

MJS 24th June 2006 08:01 AM

I have the SLS12 in a closed box of 86 liters and my measurements are a f-6 of 27 Hz
The sound is very good and natural


Do you have an especial interest in BR?

Regards ( and sorry for my english)

Miguel

testarossa2k 24th June 2006 09:40 PM

Thank you Miguel for sharing your experience, finally I found someone who tested on ears these speaker.
I ordered the SLS 10.

well, I have special interest for BR because I can get lower F3.

But If I can get F3 30hz with a closed I would be happy, but I think it's impossible.


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