GRS 12PR-8 Woofer 12" 32 cm - membrana in Polipropilene 8 Ohm

GRS - Great Replacement Speakers

Ottimi altoparlanti per chi ha bisogno di sostuire i propri fuori uso. Le caratteristiche permottono a questi altoparlanti di addattarsi facilmente in tutte le situazioni. Ovviamente sono validi anche per progetti ex-novo!

• Diametro complessivo 304,8 mm
• Diametro del foro del deflettore 281 mm
  
• Profondità di montaggio 119,1 mm
  
• Materiale del diaframma Polipropilene
  
• Diametro della bobina mobile 50,8 mm
  
• Magnete in ferrite

Resonant frequency fS 32 Hz

Electrical Q QES 1.82

Mechanical Q QMS 4.13

Total Q factor QTS 1.26

Suspension equivalent air volume VAS 95.1 litres

DC resistance RE 7.59 Ω

Voice coil inductance LE 1.4 mH

Maximum linear excursion Xmax ± 3.5 mm

Efficiency η₀ 0.17 %

Efficiency bandwidth product EBP 17

Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer.

Highlights

Polypropylene cone for perfect balance of stiffness, mass, and self-damping
Butyl rubber surround ensures high excursion and long term durability
Stamped steel frame keeps components in perfect alignment
Optimized motor features high-energy ceramic ferrite magnet, vented pole piece
 

Product Details

A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.

Highlights

Polypropylene cone for perfect balance of stiffness, mass, and self-damping
Butyl rubber surround ensures high excursion and long term durability
Stamped steel frame keeps components in perfect alignment
Optimized motor features high-energy ceramic ferrite magnet, vented pole piece
 

Product Details

GRS 12PR-8 12" Poly Cone Rubber Surround Woofer

A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.

Specifications for: 12PR-8 12" Poly Cone Rubber Surround Woofer

• Woofer SeriesReplacement woofer
• Woofer TypeMidwoofer
• Nominal Diameter12"
• Power Handling (RMS)100 Watts
• Power Handling (max)140 Watts
• Continuous Program Power
• Impedance8 Ohms
• Sensitivity84 dB 1W/1m
• Frequency Response30 to 3,000 Hz
• Voice Coil Diameter2"
• Magnet Weight
• DC Resistance (Re)7.59 ohms
• Voice Coil Inductance (Le)1.4 mH
• Resonant Frequency (Fs)
• Mechanical Q (Qms)4.13
• Electromagnetic Q (Qes)1.82
• Total Q (Qts)1.26
• Diaphragm Mass Inc. Airload (Mms)
• Moving Mass Of Diaphragm (Mmd)
• Mechanical Compliance of Suspension (Cms)
• Surface Area of Cone (Sd)
• Volume of Displacement (Vd)
• BL Product (BL)
• Compliance Equivalent Volume (Vas)3.36 ft.³
• Maximum Linear Excursion (Xmax)3.5 mm
• Driver's Mechanical Losses (Rms)
• Cone / Diaphragm MaterialPoly
• Surround Material
• Voice Coil Wire Material
• Voice Coil Former
• Dual Voice Coil
• Basket / Frame Material
• Magnet MaterialFerrite
• Shielded
• Overall Outside Diameter12"
• Overall Depth4.6875"
• Baffle Cutout Diameter11.0625"
• Bolt Circle Diameter
• # Mounting Holes8
• Mounting Hole Diameter
• Sealed Volume2.72 ft.³
• Sealed F334 Hz
• Vented Volume31 ft.³
• Vented F318 Hz