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Peerless

Peerless - 5¼" SDS Mid-Woofer - SDS-135F25CP02-04

Peerless - 5¼" SDS Mid-Woofer - SDS-135F25CP02-04

$54.95 AUD
$54.95 AUD
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Description

A 5¼" high-excursion woofer from Peerless by Tymphany's SDS range, built for compact sealed or vented enclosures. It has a coated paper cone and rubber surround, a vented spider and aluminium voice coil former to reduce power compression, and a truncated steel basket for a tight fit in small cabinets. It suits portable speakers, 2.1 systems and small subwoofers.

Features

  • Pressed Steel Basket
  • Ferrite Magnet
  • Paper Diaphragm
  • NBR Rubber Surround
  • Optimised for Sealed Enclosures

Specifications

General

Driver type Mid-Woofer
Nominal size 5.25"
Nominal impedance 4Ω
Power handling (RMS) 50 W
Sensitivity 84 dB

Thiele/Small parameters

Resonant frequency (Fs) 58 Hz
DC resistance (Re) 3.1 Ω
Minimum impedance (Zmin) 4 Ω
Voice coil inductance (Le) 1.06 mH
Mechanical Q (Qms) 3.68
Electrical Q (Qes) 0.447
Total Q (Qts) 0.4
Equivalent volume (Vas) 3.94 L
Compliance (Cms) 0.37 mm/N
Moving mass (Mms) 20.4 g
Force factor (Bl) 7.2 T·m
Effective piston area (Sd) 86.6 cm²
Linear excursion (Xmax, one-way) 7.2 mm
Mechanical excursion (Xmech) 12.5 mm
Displacement volume (Vd) 62.35 cm³
Efficiency bandwidth product (EBP) 129.8

Motor

Motor efficiency factor (β) 16.6 (T·m)²/Ω
Air gap height 6 mm
Voice coil winding height 16.4 mm
Voice coil layers 4
Voice coil wire CU
Magnet size (OD × ID × thickness) 80 × 32 × 17 mm

Mounting

Voice coil diameter 25.7 mm
Weight 0.96 kg

Materials

Cone Coated Paper
Surround NBR
Basket Steel
Magnet Ferrite
  • Xmax is quoted one-way (peak), not peak-to-peak.
  • Sensitivity measured at 1W/1m.
  • Power handling is Peerless's rated noise power (IEC 268-5).

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