Peerless SM13-GFB-8 5.25″ Hifi woofer Composite Glass Fiber
Overview:
This 5.25 inch 8 ohm driver is a member of the high performance HDA (High Definition Audio) series
- Powerful high grade Ferrite magnet system.
- FEA designed suspension system.
- Optimized motor structure and voice coil design for stability and extended frequency response with low distortion.
- Engineered fiber glass composite diaphragm offering unique visual and acoustic experience.
- Half roll rubber surround for longevity and consistency across seasons and years.
HDA series offers high quality drivers for multi-way speaker system and best suited for bass-reflex designs.
General Specifications:
| Nominal diameter, D | in 5.25 | 
| Nominal impedance, Z | 8Ω | 
| Minimum impedance, Zmin | 6.46Ω | 
| RMS Power rating | 40watt | 
| Sensitivity (Lp) (1W/1m)@1V | 89.61 dB | 
| Frequency range | 50-4000Hz | 
| Voice coil diameter / Diaphragm area, Sd | 26mm / 95.0cm^2 | 
| Chassis material | Mild Steel | 
| Magnet material | Ferrite Y35 | 
| Magnet dimensions | 86x32x15 MM | 
| Coil material / Voice coil Inductance, Le | Copper / 1.049mH | 
| Former material | Kapton | 
| Cone material | Composite Glass Fiber | 
| Surround material | Nitrile Rubber | 
| Xmax (4) | 4.5mm | 
| Xmech (5) | 14mm | 
| Gap height | 5mm | 
| Voice coil winding height / Equivalent air volume, Vas | 9.5mm / 15.31 liters | 
Small Signal parameters:
| DC resistance, Rdc | 6.20Ω | 
| Resonance frequency, Fs | 57.8Hz | 
| Moving mass, Mms | 6.35g | 
| Compliance, Cms | 1.195 mm/N | 
| Force factor, Bl | 5.096 Tm | 
| Mechanical Q-factor, Qms | 2.247 kg/s | 
| Mechanical resistance,Rms | 1.025 kg/s | 
| Electrical Q-factor, Qes | 0.518 | 
| Total Q-factor, Qts | 0.421 | 
NOTE:
(1). Tested for two hours using a continuous band-limited pink noise signal as per AES 2-1984 Rev.
2003.
(2). Loudspeaker tested in free air.
(3). T/S Parameters, measured and cross validated with two different modules.
(4). Its measured after pre-conditioning at , 50% 25°C- 30°C humidity for 2 hours.
(5). Xmax is calculated as:
(Hvc – Hg) / 2 + Hg/4. Hvc is the voice coil height and Hg is the height of gap.






 
				

 
				
 
				
 
				
 
				
 
				
 
				
 
				
 
				
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