C8R

General Characteristics for 4Ω
Nominal Overall Diameter207 mm.8 in.
Nominal Voice Coil Diameter25 mm.1.00 in.
Magnet Weight270 g10.00 oz
Overall Weight2.20 lbs
Flux Density1.00 T
Voice Coil Winding Depth0.24 in.
Magnetic Gap Depth0.16 in.
Thiele-Small Parameters for 4Ω
Voice Coil DC ResistanceRE3.00 Ω
Resonance FrequencyƒS131.0 Hz
Mechanical Q FactorQMS9.65
Electrical Q FactorQES1.66
Total Q FactorQTS1.42
Mechanical Moving MassMMS9.2 g
Mechanical ComplianceCMS161 µm/N
Force FactorBxL3.76 Wb/m
Equivalent Acoustic VolumeVAS10.3 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO1.34 %
Diaphragm AreaSD213.8 cm2
Losses Electrical ResistanceRES19.0 Ω
Voice Coil Inductance @ 1kHzLE0.22 mH
Constructive Characteristics for 4Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerKapton
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Surround TreatmentYes
Electrical Characteristics for 4Ω
Nominal Impedance4 Ω
Rated Power25 W
Musical Power50 W
Sensitivity@1W,1m94.4 dB
General Characteristics for 8Ω
Nominal Overall Diameter207 mm.8 in.
Nominal Voice Coil Diameter25 mm.1.00 in.
Magnet Weight270 g10.00 oz
Overall Weight2.20 lbs
Flux Density1.00 T
Voice Coil Winding Depth0.24 in.
Magnetic Gap Depth0.16 in.
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE6.73 Ω
Resonance FrequencyƒS126.0 Hz
Mechanical Q FactorQMS10.29
Electrical Q FactorQES2.21
Total Q FactorQTS1.80
Mechanical Moving MassMMS9.0 g
Mechanical ComplianceCMS176 µm/N
Force FactorBxL4.70 Wb/m
Equivalent Acoustic VolumeVAS11.4 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO1.03 %
Diaphragm AreaSD213.8 cm2
Losses Electrical ResistanceRES37.0 Ω
Voice Coil Inductance @ 1kHzLE0.43 mH
Constructive Characteristics for 8Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerKapton
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Surround TreatmentYes
Electrical Characteristics for 8Ω
Nominal Impedance8 Ω
Rated Power25 W
Musical Power50 W
Sensitivity@1W,1m93.0 dB
8"
,
25 watts
  • Ohms:

Crystal clear tone with brightly shining highs. It responds to overdrive distortion with a bright fuzz lead voice.

Lows:Mids:Highs:Overdrive:
TightAggressiveBrightEdgy
Crystal clear tone with brightly shining highs. Responds to overdrive distortion with a bright fuzz lead voice.
Bright and hard
Sound Samples:
Clean Sound Sample00:18https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_clean_0.mp3
Overdriven Sound Sample00:18https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_overdriven_0.mp3
Blues Sound Sample00:49https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_blues.mp3
Country Sound Sample00:35https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_country.mp3
Jazz Sound Sample00:43https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_jazz.mp3
Metal Sound Sample00:53https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_metal.mp3
Rock Sound Sample00:41https://www.jensentone.com/sites/jensentone.com/files/sound_samples/c8r_rock.mp3
Having trouble playing our sound samples? Click here to access the files directly.
Frequency Response Charts:

User Reviews

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I did purchase a C8R 4ohm speaker to use with my kit amp:
The speaker is a good match for this amp and has considerable volume capabilities.