Peerless XLS 830452 Horn Ideas.

[Homeboydeluxe]

Hi everyone, i have two peerless 830452 subwoofers that i would love to use in a horn build, an member in this section wanted to build a horn sub with a similar peerless driver, and the models seemed to be very positive.

I want to build two, each with one woofer, size wise i am looking for around 120cm by 100cm by 35-40cm, smaller would be better.

For a tune is was thinking 15-18Hz low knee (if thats the right term!), I have built many other subs in the last few years, mostly ported and some sealed, i cannot figure out horn response at all, winISD no problem, but its not applicable for this build.

Here are the Parameters (spec not measured)

Znom 8 ohm
Re 3.4 ohm
Le 4.3 mH
fs 18.6 Hz
Qms 2.66
Qes 0.18
Qts 0.17
Mms 139.3 g
Cms 0.52 mm/N
Sd 333 cm2
BL 17.5 N/A
Vas 80.2 ltrs
Xmax 12.5 mm peak
Voice Coil Ø 51 mm
Sensitivity
2.83V / 1m 88.4 dB
Power (IEC) 300 watt

I have an basic idea for the folding (which are sketchy at best, get it) although it looks more like a transmission line, i was just getting an idea of the
horn path length.

I posted here because of the excellent level of knowledge and experience and helpfulness, that i have see.

Thanks John.

[NEO Dan]

Go here

[Homeboydeluxe]

Oh that was unobservant of me, but he seems to be limited to around 4-5 cubic feet, i can go to around 10 cubic feet, which should mean a greater sensitivity and a lower tune?

[GM]

Greets!

I simmed both sets of specs and virtually no difference even with the big difference in inductance, though of course the proof is in the building/measuring.

Anyway, not a lot going on at rated power down low, though two subs not too far apart will sum at the long WLs, so combined with a bit of room/boundary gain they should be OK for all but a few movies and pipe organ symphonies unless a high pass is used to protect them. Overall though not too shabby for only ~149 L net.

As you can see in the sim, it's already a little under-damped, though from others measured builds it should be somewhat smoother in reality, so this driver's specs doesn't really want to 'feel' anywhere near a 10 ft^3 cab without either adding some series resistance or tuning it lower. Of course you can always double each section's area to get your 10+ ft^3 net or some other net Vb by using whatever fraction is required.

GM

[tb46]

Hi,

As NEO Dan said:

PEERLESS XLS10

see: Post #19 for a Hornresp Input screen using the geometry from the TH-SPUD. For a single driver tapped horn divide the areas by 2 and maintain the length.

Regards,

[Homeboydeluxe]

Thanks for the input guys, very helpful.

Thats looks like some pretty decent Spl for a 10", in terms of physical layout of the horn and folding, was there a copy of the spud diagram that i could copy in terms of path length, and just adjust the cross sectional area, as i am only using
a 10" single, vs two 12" drivers?

Would 15mm ply do for this build or is 18mm a must?

Thanks again.

[tb46]

Hi,

The Input screen in the link above, Post #19, is for two 10" 830452, I think.

As to a layout diagram, see Post #30:

Dual 8" tapped horn = TH-SPUD

And yes, for a single you maintain the length, and divide the areas by two. You can still play around with it in Hornresp, and see what you come up with.

Regards,