Peerless 830452 XLS10
Peerless 830452 at EssentialAudio - $237 AUD including GST (20th May 2009)
Peerless 830452 at Speakerbits - $256.49 AUD excluding GST (20th May 2009)
|Z - Nominal Impedance||6 ohm|
|Pe - Power Handling||300W (150 continuous)|
|SPL - Sensitivity||84.6 dB/watt@1m|
|Re - Voice coil resistance||3.4 ohm|
|Fs - Resonant frequency||18.9 hz|
|Qms - Mechanical Q||2.63|
|Qes - Electrical Q||0.18|
|Qts - Total Q||0.17|
|Vas - Equivalent volume||89.7 litres|
|Xmax - Maximum excursion||12.5 mm|
|Sd - Cone Area||352 sq cm|
|EBP - Efficiency Bandwidth Product||105 - Best ported|
Parameter file for this driver for WinISD Pro ver 0.50a7
The local supplier has a pdf with a Passive Radiator design
for this driver
They recommend a 20 litre box with the 10inch PR tuned to 21hz. They claim 105dB @ 25hz for this design with 400w applied, but modelling in WinISD only shows 101.5, so maybe they stuffed up the sensitivity conversion. (The manufacturer lists it in terms of Voltage sensitivity rather than power sensitivity, which for this 3.4ohm driver gives a difference of 3.7, co-incidentally the difference between their claimed output and that shown by WinISD)
|Box size||Tuning frequency||Port details|
|Suggested Design||87 litres||23hz||Two 103mm ports 996mm long|
|Suppliers design||20 litres||21hz||Passive Radiator + 200g (adds about $125 AUD)|
Suppliers design modelled with 400w amp as per their notes
Suppliers design unfiltered as per their notes
PR has 200g added, for a total moving mass of 600g
Port air velocity
For DIY, use the heat-moulded flares with a 25mm flare on the exit and 20mm on the intake.
If DIY is not for you, commercial flares from Parts Express are fine, although you may need extra extension tubes to get the length.
The length of the ports, and the fact that they displace around 17 litres, means that bends will be needed.
Perhaps running the ports external would be a viable option. Alternatively, a larger box would be required.