SB Audience
SB Audience - 18" Rosso Subwoofer - ROSSO-18SW1000D
SB Audience - 18" Rosso Subwoofer - ROSSO-18SW1000D
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$554.95
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$554.95
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Stock status is updated regularly from my distributor. If the full quantity ordered isn’t available, I’ll get in touch.
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Description
Features
- Proprietary cone paper material with silk cotton tree
- Double spider for high stability suspension
- Shorting ring in motor system for reduced distortion
- Cooling device on yoke for improved heat transfer
- 4.5" voice coil with APC (Advanced Polymer Coating)
- AISVW voice coil wire for high power handling
- Cast aluminium chassis
Specifications
Specifications
General
| Driver type | Subwoofer |
|---|---|
| Nominal size | 18" |
| Nominal impedance | 8Ω |
| Series | SB Pro-subwoofers |
| Power handling (RMS) | 1,000 W |
| Power handling (program) | 2,000 W |
| Sensitivity | 98 dB |
| Frequency range | 35 – 3,400 Hz |
| Suggested alignment | Either |
| Cone surround | Triple roll |
| Spider profile | Double constant height waves |
| Weather resistant | Yes |
| Recone kit | 1P000OPSB025 |
Thiele/Small parameters
| Resonant frequency (Fs) | 35 Hz |
|---|---|
| DC resistance (Re) | 5.3 Ω |
| Minimum impedance (Zmin) | 5.2 Ω |
| Voice coil inductance (Le) | 1.64 mH |
| Mechanical Q (Qms) | 10.13 |
| Electrical Q (Qes) | 0.49 |
| Total Q (Qts) | 0.46 |
| Equivalent volume (Vas) | 164.3 L |
| Compliance (Cms) | 0.07 mm/N |
| Moving mass (Mms) | 276 g |
| Mechanical resistance (Rms) | 6.05 kg/s |
| Force factor (Bl) | 25.8 T·m |
| Effective piston area (Sd) | 1,257 cm² |
| Linear excursion (Xmax, one-way) | 13.67 mm |
| Mechanical excursion (Xmech) | 17.5 mm |
| Displacement volume (Vd) | 1,718 cm³ |
| Efficiency bandwidth product (EBP) | 71.43 |
| Reference efficiency (η0) | 1.44 % |
Motor
| Voice coil height | 33.2 mm |
|---|---|
| Air gap height | 14 mm |
| Magnetic flux density | 0.93 T |
| Voice coil wire | AISV copper wire |
| Demodulation | Aluminium shorting ring and Aluminium cooling device |
Mounting
| Overall diameter | 483 mm |
|---|---|
| Faceplate | Not round (see the maker's drawing) |
| Cutout diameter | 428 mm |
| Mounting depth | 218.7 mm |
| Flange thickness (estimate) | ≈ 10.5 mm |
| Bolt circle diameter | 456 mm |
| Mounting holes | 8 |
| Mounting hole diameter | 6.9 mm |
| Volume displaced by driver | 9.46 L |
| Voice coil diameter | 113 mm |
| Weight | 17 kg |
| Flange and gasket thickness | 16.5 mm |
Materials
| Voice coil former | Fibreglass |
|---|---|
| Basket | Cast Aluminium |
| Magnet | Ferrite |
- Xmax is quoted one-way (peak), not peak-to-peak.
- Sensitivity measured at 1W/1m.
- Power handling (RMS) is the AES rating: 2 hours of pink noise (6 dB crest factor), Fs to 10 × Fs, in free air, on the nominal impedance. Program power is SB Audience's maximum power, 3 dB above the RMS rating.
Downloads
- ROSSO-18SW1000D Datasheet
- ROSSO-18SW1000D Drawing
- ROSSO-18SW1000D Cutout & Recess Template (NB Audio) Every figure is straight off SB Audience's own spec sheet. Check it against your driver before you cut.
Where do these figures come from? See the source of each one
