Peerless SLS-85S25CP04-04 3-1/2″ Paper Cone Woofer 4 Ohm
$26
264-1600–tymphany-sls-85s25cp04-04-spec-sheetProduct Info
The SLS line combines high-quality performance with an affordable design. This 3.5 inch 4 ohm member of the SLS family features a rigid steel basket, a coated paper cone, and a ferrite magnet motor with aluminium shorting ring for improved distortion performance.
With a low Fs and 4.5 mm of excursion, the 3-1/2″ Peerless SLS-85S25CP04-04 will produce powerful bass response in small speaker designs. In addition, an aluminum shorting ring and smooth response up to 5,000 Hz ensures low distortion and accuracy throughout the midrange frequencies.
Key Features
- This small driver is capable of delivering a big sound
- Low Fs and high Xmax makes this small driver capable of big sound
- Damped paper cone with rubber surround provides natural response
- Dual magnet design concentrates the magnetic field on the voice coil gap
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196 in stock
264-1600–tymphany-sls-85s25cp04-04-spec-sheet
Specification
DC Resistance | Revc | Ohms | 3.18 | 5.0% |
Minimum Impedance | Zmin | Ohms | 4.37 | 7.5% |
Voice Coil Inductance | Le | mH | 0.16 | |
Resonant Frequency | Fs | Hz | 72.57 | 15% |
Mechanical Q Factor | Qms | 5.38 | ||
Electrical Q Factor | Qes | 0.45 | ||
Total Q Factor | Qts | 0.35 | ||
Ratio Fs/Qts | F | Fs/Qts | 210.34 | |
Half Space Sensitivity @2.83V | db@2.83V/1M | dB | 85.98 | +/- 1.0db |
Half Space Sensitivity @1W/1M | db@1W/1M | dB | 83.3 | +/-1.0db |
Gap Height | Gh | Mm | 6 | |
Maximum Linear Excursion | Xmax | Mm | 4.5 | |
Ferrofluid Type | FF | |||
Driver Mass | Kg | 0.96 | ||
Energy Bandwidth Product | EBP | (1/Qes)*fs | ||
Moving Mass | Mms | G | 4.7 | |
Suspension Compliance | Cms | Um/N | 1017.5 | |
Effective Cone diameter | D | Cm | 6.26 | |
Effective Piston Area | Sd | cm^2 | 30.8 | |
Effective Volume | Vas | L | 1.39 | |
Motor Force Factor | BL | 4.31 | ||
Motor Efficiency Factor | (T*M^2)/Ohms | 5.9 | ||
Voice coil former Material | VCfm | KSV | ||
Voice coil inner diameter | Vcd | mm | 25.73 | |
Rated Noise Power | P | W | 30 | |
Test Spectrum Bandwidth | Fs-2.5KHZ | |||
Driver Size | Inch | 3.5 in |
Weight | 3 kg |
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Dimensions | 24 × 20 × 16 cm |


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