← Back to Peerless - 5½" Magnetically Shielded Mid-Woofer - BC18SG08-08
Where the figures for BC18SG08-08 come from
I take every figure from Peerless' own product page or datasheet where I can. This lists where each figure on the BC18SG08-08 page came from.
- 1 worked out from Peerless' figures
- 11 not yet checked
- 4 from NB Audio's listing
General
| Driver type |
Mid-Woofer |
NB Audio's listing |
| Nominal size |
5.5" |
NB Audio's listing |
| Nominal impedance |
8Ω |
My earlier listing, not yet checked |
| Series |
Peerless Woofer |
NB Audio's listing |
| Power handling (RMS) |
40 W |
My earlier listing, not yet checked |
| Sensitivity |
88.57 dB |
My earlier listing, not yet checked |
| Suggested alignment |
Either |
NB Audio's listing |
Thiele/Small parameters
| Resonant frequency (Fs) |
46.69 Hz |
My earlier listing, not yet checked |
| DC resistance (Re) |
5.8 Ω |
My earlier listing, not yet checked |
| Mechanical Q (Qms) |
2.405 |
My earlier listing, not yet checked |
| Electrical Q (Qes) |
0.672 |
My earlier listing, not yet checked |
| Total Q (Qts) |
0.525 |
My earlier listing, not yet checked |
| Equivalent volume (Vas) |
30.88 L |
My earlier listing, not yet checked |
| Efficiency bandwidth product (EBP) |
69.47 |
Worked out from the maker's figures |
Mounting
| Overall diameter |
180 mm |
My earlier listing, not yet checked |
| Cutout diameter |
147 mm |
My earlier listing, not yet checked |
Not on file: Sd, Xmax, Le, Bl, Mms, Mounting depth, Bolt circle, Flange thickness, Weight. Either the maker doesn't publish it or I haven't found it yet.
What the labels mean
- Worked out from the maker's figures: Vd = Sd × Xmax, EBP = Fs ÷ Qes.
- My earlier listing, not yet checked: from the listing I had before I started checking figures against makers. Treat it as a guide until it's checked.
- NB Audio's listing: how I've filed it in the store.
