One of the archetypical speakers in the range, the P8R has been installed in thousands of Champ and Princeton style amps for decades. Slightly clearer sounding than the C8R, its ceramic cousin, the P8R shines in clean and slightly crunch applications, where the typical chime of the AlNiCo magnets helps the sparkling harmonics to bloom.

Guitarist Description: Warm clean tone with emphasis on the highs. Responds to overdrive distortion with a warm and bright fuzz lead voice.

• Lows: Loose
• Mids: Subdued
• Highs: Bright
• Overdrive: Smooth

Product Measurements

Diameter: 8 in.
Voice Coil Diameter: 1 in.
Depth: 4.1141 in.
Outer Diameter: 8.1496 in.
Inner Diameter: 7.0275 in.
Mounting Hole Bolt Circle Diameter: 7.7559 in.
Magnet Assembly Depth: 1.9488 in.
Mounting Hole Diameter: 0.1968 in.
Nominal Overall Diameter: 207.00 mm
Nominal Voice Coil Diameter: 25.00 mm
Flux Density: 0.96 T
Voice Coil Winding Depth: 4.00 mm
Magnetic Gap Depth: 6.00 mm
Magnet Type: Alnico
Voice Coil Winding Type: Copper
Voice Coil Former: Epotex
Cone Material: Paper
Surround Material: Integrated Paper
Dust Dome Material: Solid Paper
Basket Material: Pressed Sheet Steel
Surround Treatment: Yes
Voice Coil DC Resistance (Re): 3.00 Ω
Resonance Frequency (ƒS): 129.00 Hz
Mechanical Q Factor (QMS): 8.67
Total Q Factor (QTS): 1.43
Mechanical Moving Mass (MMS): 9.30 g
Mechanical Compliance (CMS): 164.00 µm/N
Force Factor (BxL): 3.72 Wb/m
Equivalent Acoustic Volume (VAS): 10.50
Linear Displacement, maximum (XMAX): 1.00 mm
Reference Efficiency (nO): 1.27 %
Diaphragm Area (SD): 213.80 cm2
Losses Electrical Resistance (RES): 16.00 Ω
Voice Coil Inductance @ 1 kHZ (LE): 0.21 mH
Rated Power: 25.00 W
Musical Power: 50.00 W
Sensitivity @ 1W, 1m: 94.10 dB